Sulfur-enhanced herbicidal activity

Abstract

The invention relates to a composition comprising sulfur and a 2n d active ingredient (ai), wherein the 2nd ai is a herbicide selected from a classical herbicide, a fatty acid, an oil or a terpenic compound, in a ratio 5000:1 – 1:2000 (w / w; sulfur: 2nd ai). The invention further relates to a method for controlling weed growth, comprising providing sulfur and said 2nd active ingredient (ai). The invention further relates to a method for accelerating the desiccation, death, and / or defoliation of leaf. The invention further relates to a method for controlling, preventing and / or eliminating the presence of a sucker or runner. The invention further provides a use of sulfur for enhancing the activity of a 2nd ai against a weed.

Description

[0001] P137879PC00 Title: Sulfur-enhanced herbicidal activity FIELD: The invention relates to compositions and methods to control weeds on soil for crop production. 1. BACKGROUND Weeds are the most important biological constraints to agricultural production and result in major crop yield losses. Weeds compete with crops for resources such as light, soil nutrients, space, carbon dioxide and water. Left uncontrolled, weeds can result in a total destroying of the crop yield (Horvath et al. 2023. Trends Plant Science 28: 567-582; Chauhan, 2020. Front Agronomy 1: 3). To date, weeds in agriculture are controlled using two different types of herbicides, namely systemic and contact herbicides. Systemic herbicides have an effect that spreads throughout the entire plant. A typical example of a systemic herbicide is glyphosate, the active ingredient of Roundup®. Glyphosate is absorbed through plant leaves, and is then transported in the plant towards the root system. Often with systemic herbicides regrowth of the weeds does not occur. On the contrary, contact herbicides or non-systemic herbicides kill the plant tissue that are in contact with the herbicides. As a result, the killing of plant tissue is faster compared to a systemic herbicide that first needs to be absorbed and translocated inside the plants. However, because the killing of plant tissue is limited to the area in contact with the non-systemic herbicide, as a consequence regrowth of weeds occur that require additional application of herbicide. Herbicides can be applied in different manners as a preplant herbicidal application to the soil before sowing of the crop, as a preemergence herbicidal application before weeds have emerged from the soil, as a postemergence herbicidal application once the weeds seedling have emerged from the soil. Additionally herbicides can be applied at the end of the growing season on crop such as potato to defoliate the plant from its leaves in order to accelerate and facilitate the harvest of the potato tubers. In this case, a non-systemic herbicide can be used as the purpose is to destroy the vegetation above ground without affecting the quality of the tubers below ground. In such application a large amount of herbicide need to be applied to properly and effectively cover and defoliate the abundant vegetation present at the end of the crop growing season. In general there is a requirement to reduce the use of pesticide in relation to environment and human health. Therefore there is a need to propose alternative solutions which would be safe for the environment and the human. Such an alternative solution would improve the usage of herbicides by increasing their efficacy or / and improving their long lasting effect. There is also a general interest in using active ingredients which are more safe for the environment and people. This includes active ingredients with herbicidal effect that are certified as organic or biological for instance according to the French or European legislation, or certified as organic by the Organic Materials Review Institute (OMRI). Such active ingredient includes, but is not limited to, plant extract like thyme oil, citrus oil (like orange oil), clove oil, vinegar and acetic acid, C8 to C10 fatty acids like caprylic acid, pelargonic acid, capric acid and their salts termed pelargonate such as ammonium pelargonate. Fatty acids are a class of natural compounds which occur abundantly in nature and have interesting and valuable biological activities such as antimicrobial, antifungal, antibacterial and herbicidal. Some fatty acids, such as caprylic acid, pelargonic acid and capric acid have herbicidal properties. In particular, pelargonic acid is a naturally occurring saturated nine carbon atomic fatty acid that has low toxicity to mammals and birds. Pelargonic acid is used to control weeds and as a blossom thinner. However, the natural compounds may have shorter persistence in the environment and are vulnerable to unfavourable environmental conditions such as susceptibility to oxidation, temperature etc hampering their efficacy. Oils are nonpolar chemical substances, primarily composed out of hydrocarbons. An oil may be an organic oil, including a vegetable oil, such as sunflower oil or olive oil, and an animal oil, such as a fish oil, or it may be an inorganic oil, including a mineral oil such as a petrochemical oil and a silicone oil. Oils have been used as pesticides, such as insecticides and fungicides, for decades as safe alternatives to synthetic compounds. However, little research have been performed towards their use in agriculture, due to their potential phytotoxic effects (Baliota & Athanassiou, 2023. Environ Sci Pollut Res Int 30: 2392-2405). Several types of elemental sulfur (S0) exist that are used in crop protection products, both as fungicide, fertilizer and insecticide. Examples of different types of sulfur that are used as active ingredient in crop protection products include S0from sulfur mines; S0obtained via chemical processes (the ”Claus process”) from hydrogen sulfide (H2S) present in gas and H2S released during oil refinery; and S0obtained from H2S via oxidation by sulfur bacteria in a bio-reactor, so called “microbial sulfur” such as in the product Cerasulfur® of Ceradis® (Wageningen, the Netherlands). S0can be present in many different molecular forms like aliphatic structure with different number of sulfur atoms linked to each other, and (ortho)rhombic sulfur, which also may have a different number of atoms in a rhombic molecular structure. Most prevalent in nature is cyclo-octasulfur (cyclo-S8). In crop protection, elemental sulfur is used for the control of pathogenic true- fungi species belonging to the basidiomycetes and ascomycetes divisions: powdery mildew (Oidium spp.), septoria (Mycosphaerella graminicola), apple scab (Venturia inaequalis and insects like mites, for example citrus rust mite, brown citrus rust mite, bud mite, vine mite, grape leaf blister mite, two-spotted mite, tomato russet mite, bean spider mite, and white louse scale. Crops on which sulfur is used as insecticide and / or fungicide include, ornamentals, fruits, vegetables and cereals such as, for example, pome and stone fruit, citrus, grapevines, kiwifruit, strawberries, tomatoes and wheat. In addition, elemental sulfur is used as a fertiliser to stimulate the growth of a plant. There is a need for an effective bio-solution or organic solution which will provide benefits equivalent to the chemical pesticides and yet be sustainable, non- toxic, biodegradable, have minimal impact on non-target organisms, resistance management, no residual effect, and also control pest thereby enhancing crop quality and yield and safety. There is also a need for an effective solution to improve the efficacy and / or decrease the use of the chemical pesticides, in order to reduce the impact on non-target organisms, improve resistance management, reduce residual effect, and also control pest, thereby enhancing crop quality and yield and safety. 2. BRIEF DESCRIPTION OF THE INVENTION The current invention demonstrates a synergistic effect of sulfur and active ingredients, especially a synergistic herbicidal effect, in the control of weeds growth. As elemental sulfur itself has no to little effects on weed and plant killing, the observed effects are remarkable. Accordingly, the invention provides a composition comprising sulfur and a 2ndactive ingredient (ai) in a ratio of 5000:1 – 1:2000 (w / w; sulfur: 2ndai), preferably 1500:1 – 1:500 (w / w; sulfur: 2ndai) and, optionally, one or more surfactants, wherein the 2ndai is a herbicide selected from a classical herbicide, a fatty acid, an oil or a terpenic compound, wherein the classical herbicide is selected from glyphosate, 2,4-D (2,4-dichlorophenoxyacetic acid), dicamba, picloram, paraquat, diquat, glufosinate, flumioxazin, clomazone, sulfentrazone, bromoxynil, phenmediphan, triallate, prosulfocarb, bensulide, benzobicyclon, trifluralin, quizalofop-P-ethyl, quizalofop, pyraflufen, pyraflufen ethyl, benzo- bicylcon, ethalfluralin, halosulfuron-methyl, prosulfuron and citric acid,or any combination thereof; wherein the fatty acid is selected from an acetic acid, caprylic acid, a pelargonic acid, a capric acid, a lauric acid, a palmitic acid, a oleic acid, a linoleic acid, a linolenic acid, and a ricinoleic acid, or a salt thereof, or any combination thereof, wherein the 2ndai is not a choline salt of pelargonic acid; wherein the oil is selected from sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, sesame oil, grape seed oil, rice oil, coconut oil, castor oil, paraffinic oil, olefinic oil, thyme oil, oregano oil, lemongrass oil, citrus oil, clove oil, pine oil, cinnamon oil, eucalyptus oil, fennel oil, citronella oil, geranium oil, camphor oil or any combination thereof; and wherein the terpenic compound is selected from thymol, cavacrol, citral, limonene, eugenol, terpineol, pinene, cineol, citronellol, geraniol, linalool, camphor or any combination thereof. In embodiments, the 2ndai is selected from glyphosate, 2,4-D, dicamba, clomazone, sulfentrazone, phenmediphan, triallate, prosulfocarb, trifluralin, quizalofop-ethyl, pyraflufen ethyl, benzo-bicylcon, an acetic acid, a citric acid, caprylic acid, a pelargonic acid, a capric acid, sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, grape seed oil, rice oil, paraffinic oil, thyme oil, clove oil, cinnamon oil, fennel oil, thymol, cavacrol, citral, limonene, geraniol, or any combination thereof. In embodiments, the composition further comprises at least one antifoaming agent, at least one thickening agent, at least one stabilizing agent, glycerol, or any combinations thereof. In embodiments, the composition further comprises a 3rdactive ingredient (ai) in a ratio of 500:1:1 – 1:500:500 (w / w; sulfur: 2ndai: 3rdai), preferably 100:1:1 – 1:100:100 (w / w; sulfur: 2ndai:3rdai), preferably wherein the 2ndai is a fatty acid and the 3rdai is an oil or terpenic compound, most preferably the 3rdai is an oil. The invention further provides a method for controlling weed growth, comprising providing sulfur and a 2ndactive ingredient (ai), in a ratio of 5000:1 – 1:2000 (w / w; sulfur: 2ndai), preferably 1500:1 – 1:500 (w / w; sulfur: 2ndai) to said weed, weed part, a crop and / or a soil, wherein the 2ndai is a herbicide selected from a classical herbicide, a fatty acid, an oil or a terpenic compound, wherein the classical herbicide is selected from selected from glyphosate, 2,4-D (2,4- dichlorophenoxyacetic acid), dicamba, picloram, paraquat, diquat, glufosinate, flumioxazin, clomazone, sulfentrazone, bromoxynil, phenmediphan, triallate, prosulfocarb, bensulide, benzobicyclon, trifluralin, quizalofop-ethylpyraflufen ethyl, benzo-bicylcon, ethalfluralin, halosulfuron-methyl, prosulfuron and citric acid or any combination thereof; wherein the fatty acid is selected from an acetic acid, caprylic acid, a pelargonic acid, a capric acid, a lauric acid, a palmitic acid, a oleic acid, a linoleic acid, a linolenic acid, and a ricinoleic acid, or a salt thereof, or any combination thereof; wherein the 2ndai is not a choline salt of pelargonic acid; wherein the oil is selected from sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, sesame oil, grape seed oil, rice oil, coconut oil, castor oil, paraffinic oil, olefinic oil, thyme oil, oregano oil, lemongrass oil, citrus oil, clove oil, pine oil, cinnamon oil, eucalyptus oil, fennel oil, citronella oil, geranium oil, camphor oil or any combination thereof; and wherein the terpenic compound is selected from thymol, cavacrol, citral, limonene, eugenol, terpineol, pinene, cineol, citronellol, geraniol, linalool, camphor, or any combination thereof. In embodiments, the 2ndai is selected from glyphosate, 2,4-D, dicamba, clomazone, sulfentrazone, phenmediphan, triallate, prosulfocarb, trifluralin, quizalofop ethyl, pyraflufen ethyl, benzo-bicylcon, a citric acid, an acetic acid, caprylic acid, a pelargonic acid, a capric acid sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, grape seed oil, rice oil, paraffinic oil, thyme oil, clove oil, cinnamon oil, fennel oil, thymol, cavacrol, citral, limonene, geraniol, or any combination thereof. In embodiments, the sulfur and 2ndactive ingredient (ai) are provided sequentially to the weed, weed part, crop and / or soil. In embodiments, the 2ndactive ingredient (ai) is provided between 2 days and 1 month, such as about 14 days, after the application of the elemental sulfur to the weed, weed part, crop and / or soil. In embodiments, the sulfur is provided between 2 days and 1 month, such as about 14 days, after the application of the 2ndai to the weed, weed part, crop and / or soil. In embodiments, said sulfur and 2ndai are provided by a composition of the invention. In embodiments, the method further comprises providing a 3rdactive ingredient (ai) in a ratio of 500:1:1 – 1:500:500 (w / w; sulfur: 2ndai: 3rdai), preferably 100:1:1 – 1:100:100 (w / w; sulfur: 2ndai:3rdai) to said weed, weed part, a crop and / or a soil, preferably whereby said sulfur, 2ndai and 3rdai are provided by a composition of any one of claims 4-5. The invention further provides a method for controlling, preventing and / or eliminating the presence of a sucker or runner, comprising contacting said sucker or runner, or part of said sucker or runner, with sulfur and a 2ndactive ingredient (ai), in a ratio of 5000:1 – 1:2000 (w / w; sulfur: 2ndai), preferably 1500:1 – 1:500 (w / w; sulfur: 2ndai), , and optionally a 3rdactive ingredient (ai) in a ratio of 500:1:1 – 1:500:500 (w / w; sulfur: 2ndai: 3rdai), preferably 100:1:1 – 1:100:100 (w / w; sulfur: 2ndai:3rdai), to said sucker or runner, or part of said sucker or runner, wherein the 2ndai is a herbicide selected from a classical herbicide, a fatty acid, an oil or a terpenic compound, wherein the classical herbicide is selected from selected from glyphosate, 2,4-D (2,4-dichlorophenoxyacetic acid), dicamba, dicloram, paraquat, diquat, glufosinate, flumioxazin, clomazone, sulfentrazone, bromoxynil, phenmediphan, triallate, prosulfocarb, bensulide, benzobicyclon, trifluralin, quizalofop ethyl, pyraflufen ethyl, benzo-bicyclon, ethalfluralin, halosulfuron- methyl, prosulfuron and citric acid, or any combination thereof; wherein the fatty acid is selected from an acetic acid, caprylic acid, a pelargonic acid, a capric acid, a lauric acid, a palmitic acid, an oleic acid, a linoleic acid, a linolenic acid, and a ricinoleic acid, or a salt thereof, or any combination thereof; wherein the oil is selected from sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, sesame oil, grape seed oil, rice oil, coconut oil, castor oil, paraffinic oil, olefinic oil, thyme oil, oregano oil, lemongrass oil, citrus oil, clove oil, pine oil, cinnamon oil, eucalyptus oil, fennel oil, citronella oil, geranium oil, camphor oil or any combination thereof; and wherein the terpenic compound is selected from thymol, cavacrol, citral, limonene, eugenol, terpineol, pinene, cineol, citronellol, geraniol, linalool, camphor or any combination thereof. In embodiments, the 2ndai is selected from glyphosate, 2,4-D, dicamba, clomazone, sulfentrazone, phenmediphan, triallate, prosulfocarb, trifluralin, quizalofop-ethyl, pyraflufen ethyl, benzo-bicyclon, a citric acid, an acetic acid, caprylic acid, a pelargonic acid, a capric acid sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, grape seed oil, rice oil, paraffinic oil, thyme oil, clove oil, cinnamon oil, fennel oil, thymol, cavacrol, citral, limonene, geraniol, or any combination thereof. The invention further provides a method for accelerating the desiccation, death, and / or defoliation of leaf, comprising contacting said leaf, plant, and / or plant part, with sulfur and a 2ndactive ingredient (ai), in a ratio of 5000:1 – 1:2000 (w / w; sulfur: 2ndai), preferably 1500:1 – 1:500 (w / w; sulfur: 2ndai),) and optionally a 3rdactive ingredient (ai) in a ratio of 500:1:1 – 1:500:500 (w / w; sulfur: 2ndai: 3rdai), preferably 100:1:1 – 1:100:100 (w / w; sulfur: 2ndai:3rdai), wherein the 2ndai is a herbicide selected from a classical herbicide, a fatty acid, an oil or a terpenic compound, wherein the classical herbicide is selected from selected from glyphosate, 2,4-D (2,4-dichlorophenoxyacetic acid), dicamba, picloram, paraquat, diquat, glufosinate, flumioxazin, clomazone, sulfentrazone, bromoxynil, phenmediphan, triallate, prosulfocarb, bensulide, benzobicyclon, trifluralin, quizalofop-ethyl, pyraflufen ethyl, benzo-bicyclon,ethalfluralin, halosulfuron- methyl, prosulfuron and citric acid, or any combination thereof; wherein the fatty acid is selected from an acetic acid, caprylic acid, a pelargonic acid, a capric acid, a lauric acid, a palmitic acid, a oleic acid, a linoleic acid, a linolenic acid, and a ricinoleic acid, or a salt thereof, or any combination thereof; wherein the oil is selected from sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, sesame oil, grape seed oil, rice oil, coconut oil, castor oil, paraffinic oil, olefinic oil, thyme oil, oregano oil, lemongrass oil, citrus oil, clove oil, pine oil, cinnamon oil, eucalyptus oil, fennel oil, citronella oil, geranium oil, camphor oil or any combination thereof; and wherein the terpenic compound is selected from thymol, cavacrol, citral, limonene, eugenol, terpineol, pinene, cineol, citronellol, geraniol, linalool, camphor or any combination thereof. The invention further provides a use of sulfur for enhancing the activity of a 2ndactive ingredient (ai), and optionally 3rdai, against a weed such as palmer amaranth, dandelion, black nightshade, thistle, clover, lamsquarters, grasses, chickweed, crabgrass, annual bluegrass, ryegrass, foxtail amaranth, common purslane, moss or algae, wherein the 2ndai is a classical herbicide, a fatty acid, an oil or a terpenic compound and wherein the optional 3rdai is a classical herbicide, a fatty acid, an oil or a terpenic compound, wherein the classical herbicide is selected from selected from glyphosate, 2,4-D (2,4-dichlorophenoxyacetic acid), dicamba, picloram, paraquat, diquat, glufosinate, flumioxazin, clomazone, sulfentrazone, bromoxynil, phenmediphan, triallate, prosulfocarb, bensulide, benzobicyclon, trifluralin, quizalofop-ethyl, pyraflufen ethyl, benzo-bicyclon,ethalfluralin, halosulfuron-methyl, prosulfuron and citric acid, or any combination thereof; wherein the fatty acid is selected from an acetic acid, caprylic acid, a pelargonic acid, a capric acid, a lauric acid, a palmitic acid, an oleic acid, a linoleic acid, a linolenic acid, and a ricinoleic acid, or a salt thereof, or any combination thereof; wherein the oil is selected from sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, sesame oil, grape seed oil, rice oil, coconut oil, castor oil, paraffinic oil, olefinic oil, thyme oil, oregano oil, lemongrass oil, citrus oil, clove oil, pine oil, cinnamon oil, eucalyptus oil, fennel oil, citronella oil, geranium oil, camphor oil or any combination thereof; and wherein the terpenic compound is selected from thymol, cavacrol, citral, limonene, eugenol, terpineol, pinene, cineol, citronellol, geraniol, linalool, camphor or any combination thereof. 3. DETAILED DESCRIPTION OF THE INVENTION Definitions The term “sulfur”, as is used herein, includes reference to elemental sulfur (S0), such as biosulfur. The term elemental sulfur (S0) includes allotropes of sulfur such as plastic (amorphous) sulfur, monoclinic sulfur, rhombic sulfur composed of S8 molecules, and other ring molecules such as S7 and S12. The term sulfur also includes the product of a chemical process, termed Claus process, which includes an oxidation step of hydrogen sulfide (H2S) to sulfur dioxide (SO2) and a catalyzed reaction of H2S with SO2 to form elemental sulfur (S0) (Schreiner, 2008. Chemie Unserer Zeit 42: 378). The term “biosulfur”, as is used herein, refers to microbially produced sulfur. Said biosulfur has some unique properties, as compared to chemically produced sulfur such as, for example, by the Claus-process. Most important, biosulfur is more hydrophilic than chemically produced sulfur. Biosulfur may be produced by a process termed THIOPAQ™, as described in US patent 6,656,249. The term “herbicide”, as used herein, refers to a substance, such as a chemical substance, used to control the growth of undesired weed. It also refers to a substance, such as a chemical substance, that acquires the ability to control the growth of undesired weed when combined with sulfur as in the present invention. A selective herbicide may specifically kill a weed while leaving a desired crop (i.e. the crop that treated with the herbicide in order to control the growth of the undesired weed) unharmed. A non-selective herbicide may kill all weeds without making a discrimination between desired crops and undesired weeds. Said herbicide may be applied preplant, preemergence or postemergence. A preplant herbicide is applied to the soil before a crop is planted. A preemergence herbicide is applied before a weed seedling emerges through the soil. A postemergence herbicide is applied after a weed seedling has emerged through the soil surface. The term “active ingredient”, as used herein, refers to a compound, such as a chemical, that enables a herbicide to perform its function. For example, the commercially available herbicide Roundup® has as active ingredient glyphosate and the commercially available herbicide Beloukha® has as active ingredient pelargonic acid. As is shown in the examples below, sunflower oil is also considered an ‘active ingredient’ and ‘herbicide’ according to the invention, as it acquires the ability to control the growth of undesired weed when combined with sulfur. The term ‘defoliation’, as used herein, refers to the process of the loss or removal of leaves from a crop. The term “defoliating substance” or “defoliant”, as used herein, refers to a substance, such as a chemical substance, used to accelerate the drying, dying, and defoliating of a crop at the end of the growing season in order to facilitate the harvest of the crop. The term “surfactant”, as is used herein, refers to an ionic or non-ionic surface active agent. A surfactant can have multiple functions, one skilled in the art can decide when to use what surfactant. For example, a surfactant can be used as emulsifier, dispersant / wetting agent, solubilizer, penetration enhancer, protective colloid, anti-foam agents, stabilizer, thickener and / or rheology modifier and a sticking agent. For the present invention, the surfactant may be an emulsifier, spreading agent and / or a dispersant / wetting agent. The terms “plant” and “crop”, as are used herein, both refer to a cultivated plant or tree that is cultivated for food, clothing, livestock fodder, biofuel, medicine, or other use. The terms “increased biological activity” and “increasing biological activity”, as used herein, refer to an improvement of the curative, preventive and / or persistence performance of an active ingredient. The terms also includes an expansion of the range of target organisms for the active ingredient against which the active ingredient did not have activity before the increase of activity. Without being bound by theory, it is taught that sulfur is causing the increased biological activity of a second active ingredient (2ndai) and optionally of a third active ingredient (3rd). Said increased biological activity of a 2ndai may be against an organism against which sulfur itself, and / or the 2nd ai and / or the 3rdai, in the absence of sulfur, have no, or hardly any, activity. The terms "plant part", as used herein, refer to single cells, cell clumps and plant tissues, including tissue cultures. Examples of plant parts include, but are not limited to, pollen, ovules, leaves, stems, embryos, roots, root tips, tubers, anthers, flowers, fruits, shoots, scions, rootstocks, seeds, protoplasts, calli, and seeds. The term “soil”, as is used herein, refers to a mixture of organic matter, minerals, gases, liquids, and organisms that support the life of plants and soil organisms. The term includes reference to a growth substrate in which seeds can be planted or germinating, and / or in which plants or mushrooms can grow and develop, such as rockwool and hydroponic systems. The term “weed”, as used in, refers to any plant, moss or alga that is undesired and not planted, and that is growing in competition with a desirable, cultivated plant. Weeds compete with crops for moisture, nutrients, sunlight and space. The term “sucker”, as used herein, refers to outgrowth of a plant, like a small shoot at the base of the plant that if not removed competes with the main plant for nutrient and water. The term “runner” or “stolon” as used herein, refers to outgrowth of a plant, like an horizontal stem growing along the soil optionally leading to the development of a root system or / and new plants. If not removed the runner competes with the main plant for nutrient and water. Examples of crops with runners are strawberry and mint plants. The term “burn-down activity”, as used herein, refers to a mode of action of a herbicide, acting by disruption of the cell membrane of the weed, which subsequently leads to severe desiccation of the tissue and ‘sun burn’. Herbicides with burn-down activity, called “burner” herbicides, do not translocate and therefore typically have a local effect. As such, they do not kill below-ground tissues of the weed and therefore regrowth of the weed may occur. The term “fatty acid”, as used herein, refers to an organic compound comprising a carboxyl group and an aliphatic hydrocarbon moiety, which may range from a single carbon atom, for example a methyl group, to a long-chain hydrocarbon. . A fatty acid can be either saturated or unsaturated. Fatty acids differ from each other in terms of chain length, and number, type and location of double bounds. As used herein, the term fatty acid includes acetic acid. The term “oil”, as used herein, refers to a non-polar chemical substance comprising hydrocarbons. An oil may be an organic oil, such as an animal oil, vegetable oil, an essential oil, or an inorganic oil, such as a mineral oil, and / or a blended oil. The terms “terpenic compound” and “terpene”, as used herein, both refer to the main bioactive compound of an essential oil. Terpenes can be produced by plants, microorganisms or animals, alternatively terpenes can be synthetically produced. Terpenes are classified based on their number of carbons, such as monoterpenes, sesquiterpenes and diterpenes and are soluble in oil. The term “essential oil” or “terpenic oil”, as used herein, refers to an oil extracted from plants, which comprise terpenes. Examples of essential oils include thyme oil, citrus oils, mint oil, cedarwood oil, eucalyptus oil and clove oil. The term “mineral oil”, as used herein, refers to an oil obtained from petroleum through a refining process, typically involving distillation. Examples of mineral oil are paraffinic oil and olefinic oil. The term “blended oil”, as used herein, refers to an oil, such as an organic or inorganic oil, in which a terpenic compound is dissolved. The term “classical herbicide” as used herein, refers to a herbicide having the ability to control the growth of undesired weed in the absence of sulfur. Examples of classical herbicides are glyphosate, 2,4-D (2,4-dichlorophenoxyacetic acid), dicamba, picloram, paraquat, diquat, glufosinate, flumioxazin, clomazone, sulfentrazone, bromoxynil, phenmediphan, triallate, prosulfocarb, bensulide, benzobicyclon, trifluralin, quizalofop-ethyl, pyraflufen ethyl, ethalfluralin, halosulfuron-methyl, prosulfuron, citric acid and a fatty acid such as capric acid, pelargonic acid, caprylic acid. Classic herbicides can be classified based on the Herbicide Resistance Action Committee (HRAC) according to their modes of action: Group 1 includes ACCase Inhibitors and / or Acetyl-CoA Carboxylase Inhibitors such as Quizalofop-ethyl; Group 2 includes the classical herbicides with as mode of action ALS Inhibitors – Acetolactate Synthase Inhibitors, such as the herbicides halosulfuron-methyl and prosulfuron; Group 3 includes classical herbicides with as mode of action Inhibition of microtubule assembly, such as the herbicides trifluralin, and ethalfluralin; Group 4 includes classical herbicides with as mode of action Synthetic Auxins and / or Growth Regulators, such as the herbicides 2,4-D (2,4- dichlorophenoxyacetic acid), picloram and dicamba; Groups 5 and 6 includes classical herbicides with as mode of action Photosystem II Inhibitors, such as the herbicides bromoxynil and phenmedipham (Group 5 – PSII inhibitor at the D1 protein); Group 9 includes classical herbicides with as mode of action EPSP Synthase Inhibitors, such as the herbicide glyphosate; Group 10 includes herbicides with as mode of action Glutamine synthetase inhibitors, such as the herbicide glufosinate; Group 13 includes the herbicides with as mode of action Inhibition of Deoxy-D-xyulose phosphatase synthase, such as the herbicide clomazone; Group 14 includes herbicide with as mode of action PPO inhibitors and / or Protoporphyrinogen oxidase inhibitors, such as the herbicides flumioxazin, sulfentrazone, and pyraflufen-ethyl; Group 15 includes herbicides with as mode of action Inhibition of Very Long-Chain Fatty Acid synthesis ), such as the herbicide triallate, prosulfocarb, and thiobencarb; and Group 22 includes herbicides with as mode of action photosynthesis I electron diversion, such as the herbicides paraquat and diquat; and Group 27 includes classical herbicides with as mode of action Inhibition of hydroxyphenyl pyruvate dioxygenase, such as the herbicide benzo- bicyclon; and Group 0: includes classical herbicides with an unknown mode of action, such as the herbicides bensulide, and pelargonic acid. A person skilled in the art will understand that a compound may be a ‘classical herbicide’ as well as a fatty acid, an oil or a terpenic compound. For example, as shown in the examples herein below, pelargonic acid has a herbicidal effect in the absence of sulfur, it thus falls under the definition of ‘classical herbicide’ as used herein. However, pelargonic acid may also be classified as a fatty acid. Compositions of the invention A composition according to the invention comprises sulfur and a 2ndactive ingredient (ai), in a ratio of 5000:1 – 1:2000, preferably 2000:1 – 1:1000, preferably 1500:1 – 1:500 , such as 1000:1 – 1:500; 500:1 – 1:500, 400:1 –1:400; 300:1 –1:300; 200:1 –1:200; 100:1 –1:100; 50:1 –1:50; 25:1 –1:25, 15:1 –1:15, 10:1 –1:10, 5:1 –1:5, 2.5:1 –1:2.5, including about 1:1 (w / w; sulfur: 2nd ai). In embodiments, the amount of sulfur in said composition is higher than the amount of 2nd ai. In embodiments, the ratio of sulfur over 2nd ai is 100:1 –1:1 (w / w; sulfur: 2nd ai), such as 90:1 –1:1; 80:1 –2:1; 70:1 –3:1; 60:1 –5:1; 50:1 –10:1; including 40:1 –20:1, such as about 1:1, 2:1, 2.5:1, 5:1, 10:1, 20:1, 25:1, 30:1, 40:1, 50:1, 60:1, 70:1, 80:1, 90:1 and 100:1 (w / w; sulfur: 2nd ai). In a preferred embodiment, the ratio sulfur over 2ndai is 15:1 –1:15, such as 1:1, 0.75:1, 0.2:1, 0.25:1 and 0.1:1 (w / w; sulfur: 2ndai). In embodiments, the amount of 2ndai in said composition is higher than the amount of sulfur. In embodiments, the ratio of sulfur over 2ndai is 1:500 - 1:1, preferably 1:100 –1:1 (w / w; sulfur: 2nd ai), such as 1:90 –1:1; such as about 1:1, 1:1.4, 1:2, 1:2.5, 1:4, 1:5, 1:10, 1:20, 1:30, 1:40, 1:50, 1:60, 1:70, 1:80, 1:90 and 1:100 (w / w; sulfur: 2nd ai). The 2ndai is an herbicide, including a classical herbicide, a fatty acid, an oil or a terpenic compound. In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and pelargonic acid as 2ndai is 2000:1 – 1:2000, such as 1000:1 – 1:1000, 750:1 – 1:750, 500:1 – 1:500, 200:1-1:200 (w / w; sulfur: 2ndai), preferably 100:1 – 1:100, such as 100:1, 50:1, 10:1, 33:1, 2:1, 1:1, 1:2, 1:4; 1:10 or 1:100 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and paraffinic oil as 2ndai is 100:1- 1:100, such as 50:1- 1:50, 20:1- 1:20, 10:1- 1:10, 5:1-1:5 (w / w; sulfur: 2ndai), preferably 2.5:1 - 1:4, such as 2.5:1, 2:1, 1:4, 1.25:1, 1:1 or 1:2 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and sunflower oil as 2ndai is 2000:1 – 1:2000, such as 1000:1 – 1:1000, 750:1 – 1:750, 500:1 – 1:500, 200:1-1:200 (w / w; sulfur: 2ndai), preferably 100:1 – 1:100, such as 100:1, 50:1, 10:1, 2.5:1, 2:1, 1.25:1, 1:1, 1:2, 1:4, 1:10, 1:20 or 1:100 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and a vegetable oil, preferably rice oil, peanut oil, olive oil, linseed oil and / or grape seed oil, as 2ndai is 100:1- 1:50, such as 50:1 - 1:20, 20:1 - 1:10, 10:1 - 1:5, 5:1 - 1:2 (w / w; sulfur: 2ndai), preferably 2:1 – 1:1, such as 2:1 or 1:1 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and rapeseed oil as 2ndai is 100:1- 1:2000, such as 50:1 - 1:1000, 20:1 - 1:500, 10:1 - 1:250, 5:1 - 1:200 (w / w; sulfur: 2ndai), preferably 2:1 – 1:100, such as 2:1, 1:1, 1:10, 1:50 or 1:100 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and soybean oil as 2ndai is 100:1- 1:2000, such as 50:1 - 1:1000, 20:1 - 1:500, 10:1 - 1:250, 5:1 - 1:200, (w / w; sulfur: 2ndai), preferably 2:1 – 1:100, such as 2:1, 1:1, 1:10, 1:50 or 1:100 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and maize oil as 2ndai is 100:1- 1:2000, such as 50:1 - 1:1000, 20:1 - 1:500, 10:1 - 1:250, 5:1 - 1:200, (w / w; sulfur: 2ndai), preferably 2:1 – 1:100, such as 2:1, 1:1, 1:10, 1:50 or 1:100 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and acetic acid as 2ndai is 100:1- 1:1000, such as 50:1 - 1:500, 20:1 - 1:400, 10:1 - 1:300, 5:1 - 1:200 (w / w; sulfur: 2ndai), preferably 2:1 – 1:10, such as 2:1, 1:1 or 1:10 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and citric acid as 2ndai is 100:1- 1:50, such as 50:1 - 1:20, 20:1 - 1:10, 10:1 - 1:5, 5:1 - 1:2 (w / w; sulfur: 2ndai), preferably 2:1 - 1:1, such as 2:1 or 1:1 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and capric acid as 2ndai is 500:1- 1:2000, such as 200:1 - 1:1000, 100:1 - 1:500, 50:1 - 1:250, 20:1 - 1:200 (w / w; sulfur: 2ndai), preferably 10:1 – 1:100, such as 10:1, 5:1, 2:1, 1:1, 1:10, 1:50 or 1:100 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and clove oil as 2ndai is 100:1- 1:2000, such as 50:1 - 1:1000, 20:1 - 1:500, 10:1 - 1:250, 5:1 - 1:200, (w / w; sulfur: 2ndai), preferably 2:1 - 1:100, such as 2:1, 1:1, 1:10, 1:50 or 1:100 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and thyme oil as 2ndai is 100:1- 1:2000, such as 50:1 - 1:1000, 20:1 - 1:500, 10:1 - 1:250, 5:1 - 1:200, (w / w; sulfur: 2ndai), preferably 2:1 - 1:100, such as 2:1, 1:1, 1:10, 1:50 or 1:100 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and citral as 2ndai is 200:1- 1:1000, such as 100:1 - 1:500, 50:1 - 1:400, 20:1 - 1:200, 10:1 - 1:100 (w / w; sulfur: 2ndai), preferably 5:1 - 1:50, such as 5:1, 2:1, 1:1, 1:10 or 1:50 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and glyphosate as 2ndai is 200:1- 1:2000, such as 100:1 - 1:1000, 50:1 - 1:500, 20:1 - 1:250, 10:1 - 1:200 (w / w; sulfur: 2ndai), preferably 5:1 - 1:100, such as 5:1,1:10, 1:50 or 1:100 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and caprylic acid as 2ndai is 200:1- 1:2000, such as 100:1 - 1:1000, 50:1 - 1:500, 20:1 - 1:250, 10:1 - 1:200 (w / w; sulfur: 2ndai), preferably 5:1 - 1:100, such as 5:1, 1:1, 1:10, 1:50 or1:100 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and geraniol as 2ndai is 200:1- 1:2000, such as 100:1 - 1:1000, 50:1 - 1:500, 20:1 - 1:250, 10:1 - 1:200 (w / w; sulfur: 2ndai), preferably 5:1 - 1:100, such as 5:1, 1:1, 1:10, 1:50 or1:100 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and thymol as 2ndai is 200:1- 1:500, such as 100:1 - 1:200, 50:1 - 1:100, 20:1 - 1:50, 10:1 - 1:20 (w / w; sulfur: 2ndai), preferably 5:1 - 1:10, such as 5:1, 1:1 or 1:10 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and limonene as 2ndai is 200:1- 1:1000, such as 100:1 - 1:500, 50:1 - 1:400, 20:1 - 1:200, 10:1 - 1:100 (w / w; sulfur: 2ndai), preferably 5:1 - 1:50, such 5:1, 1:1, 1:10 or1:50 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and cinnamon oil as 2ndai is 200:1- 1:500, such as 100:1 - 1:200, 50:1 - 1:100, 20:1 - 1:50, 10:1 - 1:20 (w / w; sulfur: 2ndai), preferably 5:1 - 1:10, such as 5:1, 1:1, 1:5 or1:10 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and phenmedipham as 2ndai is 500:1- 1:2000, such as 200:1 - 1:1000, 100:1 - 1:500, 50:1 - 1:250, 20:1 - 1:200 (w / w; sulfur: 2ndai), preferably 10:1 - 1:100, such as 10:1, 5:1, 1:10 or 1:100 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and fennel oil as 2ndai is 500:1- 1:2000, such as 200:1 - 1:1000, 100:1 - 1:500, 50:1 - 1:250, 20:1 - 1:200 (w / w; sulfur: 2ndai), preferably 10:1 - 1:100, such as 10:1, 5:1, 1:1, 1:10, 1:50 or 1:100 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and carvacrol as 2ndai is 1000:1- 1:2000, such as 500:1 - 1:1000, 200:1 - 1:500, 100:1 - 1:250, 50:1 - 1:200 (w / w; sulfur: 2ndai), preferably 20:1 - 1:100, such as 20:1, 10:1, 5:1, 1:10, 1:50 or 1:100 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and 2,4-D as 2ndai is 1000:1 – 1:100, such as 750:1 - 1:50, 600:1 - 1:10, 500:1 - 1:5, 400:1 - 1:2, (w / w; sulfur: 2ndai), preferably 312:1 – 1:1.6, such as 312:1, 62:1, 6.25:1 or 1:1.6 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and dicambaas 2ndai is 5000:1 - 1:10, such as 4000:1 - 1:5, 2000:1 - 1:2 , 1750:1 - 1:1 , 1500:1 – 2:1, (w / w; sulfur: 2ndai), preferably 1471:1 - 3:1, such as 1471:1, 294:1, 29:1 or 3:1 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and triallate as 2ndai is 500:1- 1:2000, such as 200:1 - 1:1000, 100:1 - 1:500, 50:1 - 1:250, 20:1 - 1:200 (w / w; sulfur: 2ndai), preferably 10:1 - 1:100, such as 10:1, 5:1, 1:1, 1:10, 1:50 or 1:100 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and sulfentrazone as 2ndai is 200:1- 1:2000, such as 100:1 - 1:1000, 50:1 - 1:500, 20:1 - 1:250, 10:1 - 1:200 (w / w; sulfur: 2ndai), preferably 5:1 - 1:100, such as 5:1, 1:1, 1:10, 1:50 or 1:100. (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and clomazone as 2ndai is 200:1- 1:2000, such as 100:1 - 1:1000, 50:1 - 1:500, 20:1 - 1:250, 10:1 - 1:200 (w / w; sulfur: 2ndai), preferably 5:1 - 1:100, such as 5:1, 1:1, 1:10, 1:50 or 1:100 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and prosulfocarb as 2ndai is 1000:1- 1:2000, such as 500:1 - 1:1000, 200:1 - 1:500, 100:1 - 1:250, 50:1 - 1:200 (w / w; sulfur: 2ndai), preferably 20:1 - 1:100, such as 20:1, 10:1, 1:50 or 1:100 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and quizalofop ethyl as 2ndai is 1000:1- 1:2000, such as 500:1 - 1:1000, 200:1 - 1:500, 100:1 - 1:250, 50:1 - 1:200 (w / w; sulfur: 2ndai), preferably 20:1 - 1:100, such as 20:1, 10:1, 5:1, 1:1, 1:10, 1:50 or 1:100 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and pyraflufen ethyl as 2ndai is 5000:1 – 1:500, such as 2000:1 – 1:200, 1000:1 – 1:100, 500:1 – 1:50, 300:1-1:20 (w / w; sulfur: 2ndai), preferably 200:1 - 1:10, such as 200:1, 100:1, 50:1, 10:1, 1:1, 1:5 or 1:10 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and trifluralin as 2ndai is 500:1- 1:2000, such as 200:1 - 1:1000, 100:1 - 1:500, 50:1 - 1:250, 20:1 - 1:200 (w / w; sulfur: 2ndai), preferably 10:1 - 1:100, such as 10:1, 1:10, 1:50 or 1:100 (w / w; sulfur: 2nd ai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur and benzo-bicyclon as 2ndai is 500:1- 1:2000, such as 200:1 - 1:1000, 100:1 - 1:500, 10:1 - 1:250, 2:1 - 1:200 (w / w; sulfur: 2ndai), preferably 1:1 - 1:100, such as 1:1, 1:10, 1:50 or 1:100 (w / w; sulfur: 2nd ai). In embodiments, the invention is related to a composition comprising sulfur, a 2ndai and further a 3rdai. In said embodiments, both the 2ndand 3rdais are herbicides, such as a classical herbicide, a fatty acid, an oil or a terpenic compound. In embodiments, the 2ndai is from a different category of herbicides as the 3rdai, for example, the 2ndai is a fatty acid and the 3rd ai is an oil, or the 2ndai is a fatty acid and the 3rdai is a terpenic compound, or the 2ndai is an oil and the 3rdai is a fatty acid, or the 2ndai is an oil and the 3rdai is a terpenic compound, or the 2ndai is a terpenic compound and the 3rdai is a fatty acid, or the 2ndai is a terpenic compound and the 3rdai is an oil, or the 2ndai is a classical herbicide and the 3rdai is a fatty acid, or the 2ndai is a classical herbicide and the 3rdai is an oil, or the 2ndai is a classical herbicide and the 3rdai is a terpenic compound, or the 2ndai is a fatty acid and the 3rdai is a classical herbicide, or the 2ndai is an oil and the 3rdai is a classical herbicide, or the 2ndai is a terpenic compound and the 3rdai is a classical herbicide. In a preferred embodiment, the composition of the invention comprises sulfur, a fatty acid as 2ndai and an oil or terpenic compound as a third active ingredient (3rdai), more preferably the composition of the invention comprises pelargonic acid as 2ndai and sunflower oil as 3rdai. A person skilled in the art will understand that a composition according to the invention may comprise further active ingredients such as a 4thai, a 5thai, a 6thai, and so on. In embodiments, the invention is related to a composition comprising a 2ndai and further a 3rdai in a ratio of 500:1:1 – 1:500:500 (w / w; sulfur: 2ndai: 3rdai), such as 400:1:1 –1:400:400; 300:1:1 –1:300:300; 200:1:1 –1:200:200; 100:1:1 –1:100:100; 50:1:1 –1:50:50; 15:1:1 –1:15:15, including about 10:1:1, 1:10:10, 5:1:1, 1:5:5, 1:1:1, 1:1:0.5, 1:0.5:1 and 1:0.5:0.5 (w / w; sulfur: 2ndai: 3rdai). In embodiments, the amount of sulfur in said composition is higher or lower than the amount of 2ndai or / and 3rdai. In embodiments, the ratio of sulfur over 2ndai and 3rdai is 100:1:1 – 1:1:1 (w / w; sulfur: 2ndai: 3rdai), such as 90:1:1 –1:1:1; 80:1:1 –1:1:1; 70:1:1 –1:1:1; 60:1:1 –1:1:1; 50:1:1 –1:1:1; 40:1:1 –1:1:1, 15:1:1 –1:1:1, (w / w; sulfur: 2ndai: 3rdai). In embodiments, in a composition or method of the invention, the ratio of elemental sulfur, pelargonic acid as 2ndai and sunflower oil as 3rd ai is preferably 1:1:1 - 1:1:0.5, such as 1:1:1 or 1:1:0.5 (w / w; sulfur: 2nd ai). In embodiments, the ratio of sulfur over 2ndai and 3rdai is 1:5:5 –5:1:0.2 (w / w; sulfur: 2ndai: 3rdai), such as 1:4:5, 1:3:5, 1:2:5, 1:1:5, 2:4:5, 2:3:5, 2:2:5, 2:1:5, 3:4:5, 3:3:5, 3:2:5, 3:1:5, 4:4:5, 4:3:5, 4:2:5, 4:1:5, 5:4:5, 5:3:5, 5:2:5, 5:1:5, 1:5:4, 1:4:4, 1:3:4, 1:2:4, 1:1:4, 2:4:4, 2:3:4, 2:2:4, 2:1:4, 3:4:4, 3:3:4, 3:2:4, 3:1:4, 4:4:4, 4:3:4, 4:2:4, 4:1:4, 5:4:4, 5:3:4, 5:2:4, 5:1:4, 1:5:3, 1:4:3, 1:3:3, 1:2:3, 1:1:3, 2:4:3, 2:3:3, 2:2:3, 2:1:3, 3:4:3, 3:3:3, 3:2:3, 3:1:3, 4:4:3, 4:3:3, 4:2:3, 4:1:3, 5:4:3, 5:3:3, 5:2:3, 5:1:3, 1:5:2, 1:4:2, 1:3:2, 1:2:2, 1:1:2, 2:4:2, 2:3:2, 2:2:2, 2:1:2, 3:4:2, 3:3:2, 3:2:2, 3:1:2, 4:4:2, 4:3:2, 4:2:2, 4:1:2, 5:4:2, 5:3:2, 5:2:2, 5:1:2, 1:5:1, 1:4:1, 1:3:1, 1:2:1, 1:1:1, 2:4:1, 2:3:1, 2:2:1, 2:1:1, 3:4:1, 3:3:1, 3:2:1, 3:1:1, 4:4:1, 4:3:1, 4:2:1, 4:1:1, 5:4:1, 5:3:1, 5:2:1, 5:1:1, 1:5:0.9,1:4:0.9, 1:3:0.9, 1:2:0.9, 1:1:0.9, 2:4:0.9, 2:3:0.9, 2:2:0.9, 2:1:0.9, 3:4:0.9, 3:3:0.9, 3:2:0.9, 3:1:0.9, 4:4:0.9, 4:3:0.9, 4:2:0.9, 4:1:0.9, 5:4:0.9, 5:3:0.9, 5:2:0.9, 5:1:0.9, 1:5:0.8, 1:4:0.8, 1:3:0.8, 1:2:0.8, 1:1:0.8, 2:4:0.8, 2:3:0.8, 2:2:0.8, 2:1:0.8, 3:4:0.8, 3:3:0.8, 3:2:0.8, 3:1:0.8, 4:4:0.8, 4:3:0.8, 4:2:0.8, 4:1:0.8, 5:4:0.8, 5:3:0.8, 5:2:0.8, 5:1:0.8, 1:5:0.7, 1:4:0.7, 1:3:0.7, 1:2:0.7, 1:1:0.7, 2:4:0.7, 2:3:0.7, 2:2:0.7, 2:1:0.7, 3:4:0.7, 3:3:0.7, 3:2:0.7, 3:1:0.7, 4:4:0.7, 4:3:0.7, 4:2:0.7, 4:1:0.7, 5:4:0.7, 5:3:0.7, 5:2:0.7, 5:1:0.7, 1:5:0.6, 1:4:0.6, 1:3:0.6, 1:2:0.6, 1:1:0.6, 2:4:0.6, 2:3:0.6, 2:2:0.6, 2:1:0.6, 3:4:0.6, 3:3:0.6, 3:2:0.6, 3:1:0.6, 4:4:0.6, 4:3:0.6, 4:2:0.6, 4:1:0.6, 5:4:0.6, 5:3:0.6, 5:2:0.6, 5:1:0.6, 1:5:0.5, 1:4:0.5, 1:3:0.5, 1:2:0.5, 1:1:0.5, 2:4:0.5, 2:3:0.5, 2:2:0.5, 2:1:0.5, 3:4:0.5, 3:3:0.5, 3:2:0.5, 3:1:0.5, 4:4:0.5, 4:3:0.5, 4:2:0.5, 4:1:0.5, 5:4:0.5, 5:3:0.5, 5:2:0.5, 5:1:0.5, 1:5:0.4, 1:4:0.4, 1:3:0.4, 1:2:0.4, 1:1:0.4, 2:4:0.4, 2:3:0.4, 2:2:0.4, 2:1:0.4, 3:4:0.4, 3:3:0.4, 3:2:0.4, 3:1:0.4, 4:4:0.4, 4:3:0.4, 4:2:0.4, 4:1:0.4, 5:4:0.4, 5:3:0.4, 5:2:0.4, 5:1:0.4, 1:5:0.3, 1:4:0.3, 1:3:0.3, 1:2:0.3, 1:1:0.3, 2:4:0.3, 2:3:0.3, 2:2:0.3, 2:1:0.3, 3:4:0.3, 3:3:0.3, 3:2:0.3, 3:1:0.3, 4:4:0.3, 4:3:0.3, 4:2:0.3, 4:1:0.3, 5:4:0.3, 5:3:0.3, 5:2:0.3, 5:1:0.3, 1:5:0.2, 1:4:0.2, 1:3:0.2, 1:2:0.2, 1:1:0.2, 2:4:0.2, 2:3:0.2, 2:2:0.2, 2:1:0.2, 3:4:0.2, 3:3:0.2, 3:2:0.2, 3:1:0.2, 4:4:0.2, 4:3:0.2, 4:2:0.2, 4:1:0.2, 5:4:0.2, 5:3:0.2, 5:2:0.2, and 5:1:0.2 (w / w; sulfur: 2ndai: 3rdai). A composition of the invention comprises sulfur as a first active ingredient, further comprising a second active ingredient and optionally a third active ingredient. In embodiments, said composition comprises between 0.01 and 850 gram / L of sulfur, including between 0.1 and 700 gram / L of sulfur, such as between 1 and 600 gram / L of sulfur, between 10 and 600 gram / L of sulfur, between 50 and 500 gram / L of sulfur, between 100 and 400 gram / L of sulfur, between 200 and 300 gram / L of sulfur. In embodiments, said composition comprises between 400 and 500 gram / L of sulfur. In embodiments, a composition of the invention comprises between 0.1 and 850 gram / L of second active ingredient (2ndai), including between 1 and 700 gram / L of 2ndai, such as between 2 and 600 gram / L of 2ndai, between 3 and 600 gram / L of 2ndai, between 5 and 500 gram / L of 2ndai, between 10 and 400 gram / L of 2ndai, between 20 and 300 gram / L of 2ndai, between 40 and 200 gram / L of 2ndai, between 50 and 100 gram / L of 2ndai. In embodiments, a composition of the invention comprises between 0.1 and 850 gram / L of third active ingredient (3rdai), including between 1 and 700 gram / L of 3rdai, such as between 2 and 600 gram / L of 3rdai, between 3 and 600 gram / L of 3rdai, between 5 and 500 gram / L of 3rdai, between 10 and 400 gram / L of 3rdai, between 20 and 300 gram / L of 3rdai, between 40 and 200 gram / L of 3rdai, between 50 and 100 gram / L of 3rdai. In embodiments, a composition of the invention comprises between 0.1 and 850 gram / L of sulfur and between 0.1 and 850 gram / L of 2ndai, including between 2 and 700 gram / L of sulfur and between 2 and 700 gram / L of 2ndai, such as between 30 and 600 gram / L of sulfur and between 3 and 600 gram / L of 2ndai, between 40 and 600 gram / L of sulfur and between 4 and 600 gram / L of 2ndai, between 50 and 500 gram / L of sulfur and between 5 and 500 gram / L of 2ndai, between 100 and 400 gram / L of sulfur and between 10 and 400 gram / L of 2ndai, between 200 and 300 gram / L of sulfur and between 20 and 300 gram / L of 2nd ai. In embodiments, said composition comprises between 400 and 500 gram / L of sulfur and between 20 and 300 gram / L of 2ndai. In preferred embodiments, a composition of the invention comprises between 100 and 300 gram / L of sulfur and between 300 and 700 gram / L of 2nd ai, such as 275 gram / L sulfur and 360 g / L 2ndai or 120 gram / L sulfur and 600 g / L 2ndai. In embodiments, a composition of the invention comprises between 0.1 and 850 gram / L of sulfur, between 0.1 and 850 gram / L of 2ndai and between 0.1 and 850 gram / L of 3rdai, including between 2 and 700 gram / L of sulfur, between 2 and 700 gram / L of 2ndai and between 2 and 700 gram / L of 3rdai, such as between 30 and 600 gram / L of sulfur, between 3 and 600 gram / L of 2ndai and between 3 and 600 gram / L of 3rdai, between 40 and 600 gram / L of sulfur, between 4 and 600 gram / L of 2ndai and between 4 and 600 gram / L of 3rdai, between 50 and 500 gram / L of sulfur, between 5 and 500 gram / L of 2ndai and between 5 and 500 gram / L of 3rdai, between 100 and 400 gram / L of sulfur, between 10 and 400 gram / L of 2ndai and between 10 and 400 gram / L of 3rdai, between 200 and 300 gram / L of sulfur, between 20 and 300 gram / L of 2nd ai and between 20 and 300 gram / L of 3rdai. In embodiments, said composition comprises between 400 and 500 gram / L of sulfur, between 20 and 300 gram / L of 2ndai and between 20 and 300 gram / L of 3rdai. In preferred embodiments, a composition of the invention comprises between 100 and 300 gram / L of sulfur, between 150 and 350 gram / L of 2ndai and between 150 and 350 gram / L of 3rdai. A composition of the invention comprises sulfur as a first active ingredient, further comprising a second active ingredient and optionally a third active ingredient. In embodiments, said composition comprises between 0.01 and 850 gram / kg of sulfur, including between 0.1 and 700 gram / kg of sulfur, such as between 1 and 600 gram / kg of sulfur, between 10 and 600 gram / kg of sulfur, between 50 and 500 gram / kg of sulfur, between 100 and 400 gram / kg of sulfur, between 200 and 300 gram / kg of sulfur. In embodiments, said composition comprises between 400 and 500 gram / kg of sulfur. In embodiments, a composition of the invention comprises between 0.1 and 850 gram / kg of second active ingredient (2ndai), including between 1 and 700 gram / kg of 2ndai, such as between 2 and 600 gram / kg of 2ndai, between 3 and 600 gram / kg of 2ndai, between 5 and 500 gram / kg of 2ndai, between 10 and 400 gram / kg of 2ndai, between 20 and 300 gram / kg of 2ndai, between 40 and 200 gram / kg of 2ndai, between 50 and 100 gram / kg of 2ndai. In embodiments, a composition of the invention comprises between 0.1 and 850 gram / kg of third active ingredient (3rdai), including between 1 and 700 gram / kg of 3rdai, such as between 2 and 600 gram / kg of 3rdai, between 3 and 600 gram / kg of 3rdai, between 5 and 500 gram / kg of 3rdai, between 10 and 400 gram / kg of 3rdai, between 20 and 300 gram / kg of 3rdai, between 40 and 200 gram / kg of 3rdai, between 50 and 100 gram / kg of 3rdai. In embodiments, a composition of the invention comprises between 0.1 and 850 gram / kg of sulfur and between 0.1 and 850 gram / kg of 2ndai, including between 2 and 700 gram / kg of sulfur and between 2 and 700 gram / kg of 2ndai, such as between 30 and 600 gram / kg of sulfur and between 3 and 600 gram / kg of 2ndai, between 40 and 600 gram / kg of sulfur and between 4 and 600 gram / kg of 2ndai, between 50 and 500 gram / kg of sulfur and between 5 and 500 gram / kg of 2ndai, between 100 and 400 gram / kg of sulfur and between 10 and 400 gram / kg of 2ndai, between 200 and 300 gram / kg of sulfur and between 20 and 300 gram / kg of 2nd ai. In embodiments, said composition comprises between 400 and 500 gram / kg of sulfur and between 20 and 300 gram / kg of 2ndai. In preferred embodiments, a composition of the invention comprises between 100 and 300 gram / kg of sulfur and between 300 and 700 gram / kg of 2nd ai, such as 275 gram / kg sulfur and 360 g / L 2ndai or 120 gram / kg sulfur and 600 g / L 2ndai. In embodiments, a composition of the invention comprises between 0.1 and 850 gram / kg of sulfur, between 0.1 and 850 gram / kg of 2ndai and between 0.1 and 850 gram / kg of 3rdai, including between 2 and 700 gram / kg of sulfur, between 2 and 700 gram / kg of 2ndai and between 2 and 700 gram / kg of 3rdai, such as between 30 and 600 gram / kg of sulfur, between 3 and 600 gram / kg of 2ndai and between 3 and 600 gram / kg of 3rdai, between 40 and 600 gram / kg of sulfur, between 4 and 600 gram / kg of 2ndai and between 4 and 600 gram / kg of 3rdai, between 50 and 500 gram / kg of sulfur, between 5 and 500 gram / kg of 2ndai and between 5 and 500 gram / kg of 3rdai, between 100 and 400 gram / kg of sulfur, between 10 and 400 gram / kg of 2ndai and between 10 and 400 gram / kg of 3rdai, between 200 and 300 gram / kg of sulfur, between 20 and 300 gram / kg of 2nd ai and between 20 and 300 gram / kg of 3rdai. In embodiments, said composition comprises between 400 and 500 gram / kg of sulfur, between 20 and 300 gram / kg of 2ndai and between 20 and 300 gram / kg of 3rdai. In preferred embodiments, a composition of the invention comprises between 100 and 300 gram / kg of sulfur, between 150 and 350 gram / kg of 2ndai and between 150 and 350 gram / kg of 3rdai. In embodiments, a composition of the invention comprises sulfur with an average particle size of less than 25 micrometer, less than 20 micrometer, less than 15 micrometer, less than 10 micrometer, such as less than 9 micrometer, less than 8 micrometer, less than 7 micrometer, less than 6 micrometer, less than 5 micrometer, less than 4 micrometer, less than 3 micrometer, less than 2.5 micrometer, less than 2 micrometer, or less than 1 micrometer. In embodiments, a composition of the invention comprises sulfur with an average particle size of more than 1 micrometer, more than 2 micrometer, more than 5 micrometer, more than 10 micrometer, such as more than 15 micrometer, or more than 20 micrometer. Methods for determining the average particle size of sulfur particles are known in the art and include, for example, determining the actual size and morphology of the particles using a camera system, and the use of laser diffraction and dynamic light scattering. A preferred method employs volume-based particle size determination, for example by laser diffraction. A suitable apparatus for laser diffraction is an ANALYSETTE 22 MicroTec plus particle size analyser. The 2ndai and optionally 3rdai in a composition or method of the invention is a herbicide. In embodiments, the 2ndai, and / or optionally 3rdai, in a composition or method of the invention is a herbicide selected from a classical herbicide, a fatty acid, an oil and a terpenic compound. In embodiments, the 2ndai is a classical herbicide such as glyphosate, 2,4-D (2,4-dichlorophenoxyacetic acid), dicamba, picloram, paraquat, diquat, glufosinate, flumioxazin, clomazone, sulfentrazone, bromoxynil, phenmediphan, triallate, prosulfocarb, bensulide, benzo-bicyclon, trifluralin, quizalofop-ethyl, pyraflufen ethyl, ethalfluralin, halosulfuron-methyl, prosulfuron, citric acid, a fatty acid such as capric acid, pelargonic acid, caprylic acid or any combination thereof. In embodiments, the optional 3rdai in a composition or method of the invention is a classical herbicide such as glyphosate, 2,4-D (2,4-dichlorophenoxyacetic acid), dicamba, picloram, paraquat, diquat, glufosinate, flumioxazin, clomazone, sulfentrazone, bromoxynil, phenmediphan, triallate, prosulfocarb, bensulide, benzo-bicyclon, trifluralin, quizalofop-ethyl, pyraflufen ethyl, ethalfluralin, halosulfuron-methyl, prosulfuron, citric acid, a fatty acid such as capric acid, pelargonic acid, caprylic acid or any combination thereof. In embodiments, the 2ndai in a composition or method of the invention is a natural compound. In embodiments, the optional 3rdai in a composition or method of the invention is a natural compound. In embodiments, the 2ndai in a composition or method of the invention is a classical herbicide, a fatty acid, an oil or a terpenic compound. In embodiments, the optional 3rdai in a composition or method of the invention is a classical herbicide, a fatty acid, an oil or a terpenic compound. Said fatty acid may be a saturated or unsaturated fatty acid with an aliphatic chain of two carbons (C2) up to 26 carbons (C26), preferably a fatty acid is a C2, C6, C8, C9, C10, C11, C12, C13, C14, C15, C16, C17, and C18 fatty acid. As used herein, the fatty acid may be a fatty acid selected from an acetic acid, caprylic acid, pelargonic acid, capric acid, lauric acid, palmitic acid, oleic acid, linoleic acid, linolenic acid, and ricinoleic acid, or any salt from a fatty acid selected from an acetic acid, caprylic acid, a pelargonic acid, a capric acid, a lauric acid, a palmitic acid, a oleic acid, a linoleic acid, a linolenic acid and a ricinoleic acid, or any combination thereof such as a combination of one or more fatty acids with one or more salts, a combination of two or more fatty acids and a combination of two or more salts. Preferably, the fatty acids is a caprylic acid, a pelargonic acid or a capric acid, or a salt thereof. In embodiments, the 2ndai is not a salt of pelargonic acid. In embodiments, the 2ndai is not a choline salt of pelargonic acid. Examples of oils include vegetable oils, animal oils, mineral oils, terpenic oils (essential oils) and blended oils. Examples of vegetable oils include sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, sesame oil, grape seed oil, castor oil, rice oil, and coconut oil. Preferred vegetable oils are sunflower oil, maize oil, soybean oil, rapeseed oil, lineseed oil, rice oil, peanut oil, olive oil and grapeseed oil. Examples of an animal oil are fish oil, lard, bone oil. Examples of mineral oils include paraffinic oil and olefinic oil. A preferred mineral oil is paraffinic oil. Examples of terpenic oils include thyme oil, oregano oil, lemongrass oil, citrus oil, clove oil, pine oil, cinnamon oil, fennel oil, eucalyptus oil, geranium oil, camphor oil, or citronella oil. Examples of terpenic compounds are compounds derived from a terpenic oil or synthetically produced, such as thymol, carvacrol, citral, limonene, eugenol, pinene, terpineol, cineol, citronellol, geraniol, linalool, and camphor. In embodiments, a blended oil is a terpenic compound dissolved in an oil, such as an organic oil, such as sunflower oil, maize oil, soybean oil, rapeseed oil. In embodiments, blended oil is a terpenic compound is dissolved in an oil, such as a mineral oil, such as paraffinic oil. In embodiments, the 2ndai and / or optionally 3rdai is a terpenic compound dissolved in a solvent such as an ester such as a lactate ester, a ketone, an amide, a polyethylene- or polypropylene- oxide, an aliphatic and / or aromatic hydrocarbon, an ether or a triglyceride. In embodiments, a terpenic compound is dissolved in a solvent such as ethanol. In embodiments, in a composition or method of the invention, the 2ndai is selected from glyphosate, 2,4-D (2,4-dichlorophenoxyacetic acid), dicamba, picloram, paraquat, diquat, glufosinate, flumioxazin, clomazone, sulfentrazone, bromoxynil, phenmediphan, triallate, prosulfocarb, bensulide, benzobicyclon, trifluralin, quizalofop-P-ethyl, quizalofop, pyraflufen, pyraflufen ethyl, benzo- bicylcon, ethalfluralin, halosulfuron-methyl, prosulfuron and citric acid, a fatty acid selected from an acetic acid, caprylic acid, a pelargonic acid, a capric acid, a lauric acid, a palmitic acid, an oleic acid, a linoleic acid, a linolenic acid, and a ricinoleic acid, or a salt thereof, an oil selected from sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, sesame oil, grape seed oil, rice oil, coconut oil, castor oil, paraffinic oil, olefinic oil, thyme oil, oregano oil, lemongrass oil, citrus oil, clove oil, pine oil, cinnamon oil, eucalyptus oil, fennel oil, citronella oil, geranium oil, camphor oil; and a terpenic compound selected from thymol, cavacrol, citral, limonene, eugenol, terpineol, pinene, cineol, citronellol, geraniol, linalool, camphor or any combination thereof. In embodiments, in a composition or method of the invention, the 2ndai is selected from glyphosate, dicamba, picloram, paraquat, diquat, glufosinate, flumioxazin, clomazone, sulfentrazone, bromoxynil, phenmediphan, triallate, prosulfocarb, bensulide, benzobicyclon, trifluralin, quizalofop-P-ethyl, quizalofop, pyraflufen, pyraflufen ethyl, benzo-bicylcon, ethalfluralin, halosulfuron-methyl, prosulfuron and citric acid, a fatty acid selected from a caprylic acid, a pelargonic acid, a capric acid, a lauric acid, a palmitic acid, a oleic acid, a linoleic acid, a linolenic acid, and a ricinoleic acid, or a salt thereof, an oil selected from sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, sesame oil, grape seed oil, rice oil, coconut oil, castor oil, paraffinic oil, olefinic oil, oregano oil, lemongrass oil, citrus oil, cinnamon oil, , fennel oil, citronella oil, geranium oil, camphor oil; and a terpenic compound selected from thymol, cavacrol, citral, limonene, terpineol, pinene, cineol, citronellol, geraniol, linalool, camphor or any combination thereof. In embodiments, in a composition or method of the invention, the 2ndai is selected from glyphosate, 2,4-D, dicamba, clomazone, sulfentrazone, phenmediphan, triallate, prosulfocarb, trifluralin, quizalofop-ethyl, pyraflufen ethyl, benzo-bicylcon, an acetic acid, a citric acid, caprylic acid, a pelargonic acid, a capric acid, sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, grape seed oil, rice oil, paraffinic oil, thyme oil, clove oil, cinnamon oil, fennel oil, thymol, cavacrol, citral, limonene, geraniol, or any combination thereof. In embodiments, in a composition or method of the invention, the 2ndai is selected from glyphosate, dicamba, clomazone, sulfentrazone, phenmediphan, triallate, prosulfocarb, trifluralin, quizalofop-ethyl, pyraflufen ethyl, benzo- bicylcon, caprylic acid, a pelargonic acid, a capric acid, sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, grape seed oil, rice oil, paraffinic oil, cinnamon oil, fennel oil, thymol, cavacrol, citral, limonene, geraniol, or any combination thereof. A composition according to the invention preferably comprises one or more surfactants. Examples of suitable surfactants are alkyl-end-capped ethoxylate glycol, alkyl-end-capped alkyl block alkoxylate glycol, alkoxylated phosphate esters, dialkyl sulfosuccinate, sulfosuccinate, phosphated esters, alkyl sulfonates, alkyl aryl sulfonates, tristyrylphenol alkoxylates, sodium lauryl sulfates, natural or synthetic fatty acid alkoxylates, natural or synthetic fatty alcohols alkoxylates, alkoxylated alcohols (such as n-butyl alcohol polyglycol ether), PEG-10 PPG 5 cetyl phosphate, block copolymers (such as ethylene oxide-propylene oxide block copolymers and ethylene oxide-butylene oxide block copolymers) or combinations thereof. In a composition of the invention, said surfactant is preferably selected from an alkylnaphthalene sulfonate such as Morwet® D425 (Nouryon, Amsterdam, The Netherlands), block copolymers such as poly(ethylene oxide)-poly(propylene oxide) block copolymers and poly(ethylene oxide)-poly(butylene oxide) block copolymers, lignin sulphonate, an alkylpolysaccharide such as GLUCOPON® 220 (BASF), dodecylbenzensulfonic acid, an acrylic copolymer such as METASPERSE 500L, a non-ionic block polymer such as a polyalkylene glycol ether, for example ATLAS™ G-5002-L, a 12 poly-hydroxysteric acid -polyethyleneglycol (PEG) block polymer such as ATLOX 4912, a PEG-poly alkyd block polymer such as ATLOX 4914, or a polymeric ester such as ATLOX 4916, a pegylated methyl methacrylate graft copolymer such as, for example, ATLOX 4913, a polysorbate such as TWEEN ® 20, TWEEN ® 22, TWEEN ® 23, TWEEN ® 24, TWEEN ® 90, di-octylsuccinate, polyoxyethylene / polypropylene, tri-stearyl sulphonate / phosphate, an ethoxylated tristyrenephenol phosphate such as Soprophor® 3 D33 (Solvay), an alkoxylated phosphate esters such as Agrilan® 1015, a sulfosuccinates such as Geropon SDS, a sodium lauryl sulfate such as Galaxy® 696G, and a PEG-10 PPG-5 cetyl phosphate such as Crodafos® C10 / 5A, a silicon spreader such as a nonionic organosilicon wetting spreader. A composition of the invention may also comprise two or more surfactants such as an alkylnaphthalene sulfonate and an acrylic copolymer, an alkylpolysaccharide and an ethoxylated tristyrenephenol phosphate, a non-ionic block polymer and a block polymer, or lignin sulphonate and a non-ionic block polymer. A surfactant or surfactants are preferably present in an amount of between 0.1 up to 50 % (w / v), more preferred between 1 to up to 25 % (w / v), more preferred between 3 to up to 15 % (w / v), such as 4% (w / v), such as 5% (w / v), such as 6 % (w / v), 7 % (w / v), 8 % (w / v), 9 % (w / v), 10 % (w / v), 11 % (w / v), 12 % (w / v), 13 % (w / v) and 14 % (w / v). In embodiments, an antifoaming agent may be selected from polymethylsiloxane, simethicone octanol, and silicone oils. A composition of the invention may also comprise two or more different anti-foam forming agents. An antifoaming agent may be present in an amount of between 0 (meaning absence of antifoaming agent) to up to 10 % (w / v), more preferred between 0.01 to up to 5 % (w / v), more preferred between 0.01 to up to 1 % (w / v), more preferred about 0.05 % (w / v) in a ready to use product for application to an agricultural crop, a plant or plant part, and / or a soil. In embodiments, a thickening agent and / or rheology modifier may be selected from agar, alginic acid, alginate, carrageenan, gellan gum, xanthan gum, succinoglycan gum, guar gum, acetylated distarch adipate, acetylated oxidised starch, arabinogalactan, ethyl cellulose, methyl cellulose, locust bean gum, starch sodium octenylsuccinate, optigel wx, bentonite, attagite, pungite, or other silicate based thickener and triethyl citrate. A rheology modifier is a natural polymer, a synthetic polymer or an inorganic material. Said rheology modifier is selected from a organically modified clay, a cellulose derivative, such as carboxymethyl, ethyl and hydroxyethyl, an animal fat derivative, a castor oil derivative, a metal oxide or a gum based rheology modifier. A composition of the invention may also comprise two or more different thickening agents and / or rheology modifiers. A thickening agent and / or rheology modifier may be present in an amount of between 0 (meaning absence of thickening agent) to up to 10% (w / v), more preferred between 0.01 to up to 5 % (w / v), more preferred between 0.02 to up to 1 % (w / v), more preferred about 0.05 % (w / v) in a ready to use product for application to an agricultural crop, a plant or plant part, and / or a soil. In embodiments, an antioxidant may be selected from amino acids (e.g. glycine, histidine, tyrosine, tryptophan) and their derivatives, imidazole (e.g. urocanic acid) and derivatives, vitamin C and derivatives (such as ascorbylpalmitate and ascorbyltetraisopalmitate, Mg-ascorbylphosphate, Na- ascorbylphosphate, ascorbyl-acetate), tocopherol and derivates (such as vitamin-E- acetate), mixtures of vitamin E, vitamin A and derivatives (vitamin-A-palmitate and -acetate) as well as coniferyl benzoate, rutinic acid and derivatives, ^- glycosylrutin, ferulic acid, furfurylideneglucitol, carnosine, butylhydroxytoluene, butylhydroxyanisole, and trihydroxybutyrophenone. A composition of the invention may also comprise two or more different antioxidants. An anti-oxidant is preferably present in an amount between 0 to of up to 20% (w / v), more preferred between 0.1 to up to 10 % (w / v), more preferred between 1 to up to 5 % (w / v), more preferred about 3 % (w / v) in a ready to use product for application to an agricultural crop, a plant or plant part, and / or a soil. In embodiments, a composition according to the invention may comprise a biocide as preservative in a concentration of between 0.001 and 20 g / L, more preferred between 0.005 and 5 g / L, more preferred between 0.01 and 1 g / L. Preferred biocides as preservative are weak acid preservatives such as lactic acid, benzoic acid, propionic acid, citric acid and acetic acid, the alkali metal or alkali earth metal salt of the weak acids, ethyl parabenzoate, borax, calcium bisulfite, calcium disodium EDTA, dehydroacetic acid, and isothiazoles, for example 5- Chloro-2- methyl-4-isothiazolin-3-one (KATHON™, Rohm and Haas), and quaternary ammonium salts such as, for example, l-(3-chloroallyl)-3,5,7-triaza-l- azoniaadamantane chloride (CTAC). A preferred biocide is a quaternary ammonium salt is provided by CTAC, which is stabilized with sodium bicarbonate (Dowicil®75). A composition of the invention may also comprise two or more different biocides as preservatives. A further preferred biocide as preservative is Kathon™, which is preferably present in a concentration of about 0,04 g / L. In embodiments, a carriers useful for formulating the granular herbicides of the present invention may be either inorganic or organic carriers, examples of inorganic carriers including clay, kaolin bentonite, talc, calcium carbonate, ligno sulfonate, sodium carbonate, zeeklite, sericite, acid clay, quartzite, diatomaceous silica, pumice, zeolite, vermiculite, potassium chloride, urea, white carbon, ammonium sulfate, sodium sulfate, perlite, magnesium sulfate, attapulgite and the like; and examples of organic carriers including glucose, maltose, sucrose, lactose and the like. These inorganic or organic carriers can be used singly, or two or more of these inorganic carriers and / or organic carriers may be concurrently used. In embodiments, a composition of the invention is a suspension concentrate (SC), a water dispersible granule (WG), a wettable powder (WP), a suspo emulsion (oily) (SE), oil dispersion (OD), a dispersion concentrate (DC), a dry powder treatment composition, a water slurriable powder (WS), a flowable treatment composition, a flowable concentrate (FC), a water dispersible granule treatment composition, a suspo emulsion (SE) or a soluble liquid (SL). Methods of use A composition according to the invention may be used for non-selective weed control, such as weed killing, before seeding or planting a crop. The invention therefore provides method to control weed growth the method comprises providing sulfur and a 2ndactive ingredient (ai), in a ratio of 5000:1 – 1:2000 (w / w; sulfur: 2ndai), preferably 1500:1 – 1:500 (w / w; sulfur: 2ndai)to said soil, weed or weed part such that the soil, weed or weed part is contacted with a sufficient amount of sulfur and 2ndai. In embodiments, a method of the invention comprises providing a composition of the invention to said soil, weed or weed part such that the weed or weed part is contacted with a sufficient amount of said sulfur and the 2ndai. In embodiments, the invention provides a method to control weed growth the method comprises providing sulfur, a 2ndactive ingredient (ai) and 3rdai, in a ratio of 500:1:1 – 1:500:500 (w / w; sulfur: 2ndai: 3rdai), preferably 100:1:1 - 1:100:100 (w / w; sulfur: 2ndai: 3rdai) to said soil, weed or weed part such that the soil, weed or weed part is contacted with a sufficient amount of sulfur and 2ndai, and optionally 3rdai. In embodiments, a method of the invention comprises providing a composition of the invention to said soil, weed or weed part such that the weed or weed part is contacted with a sufficient amount of said sulfur, the 2ndai and 3rdai. A composition of the invention is suitable for the control of weeds that are encountered in horticulture, agriculture, and forestry. The control of weeds includes home and garden weed control near small fruits and fruit trees, weed control around amenity turf or vegetation, such as lawns, sports fields and weed control of ornamental areas on non-crop land, such as building sidewalks, fences, bark mulch, driveways, patios and gravel. The composition of the present invention is suitable for the control of a broad spectrum of weeds encompassing monocots and dicots. The composition may be active during all or individual stages of development. Said weeds may be young annual and perennial weeds, moss and / or algae. A composition or method of the invention can be used, for example, in connection with the following plants: dicotyledonous weeds of the genera: Abutilon, Achillea, Alliaria, Amaranthus, Ambrosia, Anagallis, Anthemis, Antirrhinum, Artemisia, Bassia, Bellis, Brassica, Calendula, Calibrachoa, Camelina, Capsella, Carduus, Cassia, Celosia, Centaurea, Cerastium, Chenopodium, Cineraria , Cirsium, Collinsia, Convolvulus, Cosmos, Cymbalaria, Datura, Echium, Emex, Epilobium, Erigeron, Erodium, Eruca, Eschscholzia, Fallopia, Fragaria, Galeopsis, Galinsoga, Galium, Gazania, Geranium, Hypochaeris, Ipomoea, Lactuca, Lamium, Lantana, Lepidium, Leucanthemum, Lindernia, Linum, Lobelia, Lobularia, Lotus, Lupinus, Malva, Matricaria, Matthiola, Medicago, Nemophila, Nicotiana, Oxalis, Papaver, Perilla, Pisum, Plantago, Polygonum, Portulaca, Prunus, Quercus, Ranunculus, Raphanus, Rorippa, Rosmarinus, Rotala, Rubus, Rumex, Salsola, Santivitalia, Scabiosa, Senecio, Senna, Sesbania, Sinapis, Solanum, Sonchus, Spergula, Sphenoclea, Stellaria, Taraxacum, Thlaspi, Trifolium, Tripleurospermum, Urtica, Veronica, Viola, and Xanthium. Monocotyledonous weeds of the genera: Aegilops, Agropyron, Agrostis, Allium, Alopecurus, Apera, Avena, Brachiaria, Bromus, Cenchrus, Chloris, Cynodon, Cyperus, Dactylis, Dactyloctenium, Digitaria, Echinochloa, Eleocharis, Eleusine, Elymus, Eriochloa, Festuca, Fimbristylis, Hordeum, Ischaemum, Lolium, Monochoria, Panicum, Paspalum, Phalaris, Phleum, Poa, Sagittaria, Scirpus, Setaria, Sorghum, and Urochloa. Pteridophyte weeds of the genera: Adiantum and Equisetum. Mosses and algae of the genera: Anabaena, Bryum, Campylopus, Chara, Cladophora, Polytrichum, and Spirogyra. In an embodiment, examples of weeds include: Virginia creeper (Parthenocissus quinquefolia), bindweed plant (Calystegia pulchra), African daisy (Cineraria lyratiformis), annual bluegrass (Poa annua), annual sowthistle (Sonchus oleraceus), arugula (Eruca vesicaria), Aztec tobacco (Nicotiana rustica), baby blue eyes (Nemophila menziesii), barnyard grass (Echinochloa crus-galli), beaked sedge (Scirpus mucronatus), Bermuda buttercup (Oxalis pes-caprae), bermudagrass (Cynodon dactylon), bigpod sesbania (Sesbania herbacea), bird's-foot trefoil (Lotus corniculatus), black cherry (Prunus serotina), black medic (Medicago lupulina), black nightshade (Solanum nigrum), Brazillian buttercup (Urochloa decumbens), broadleaf arrowhead (Sagittaria latifolia), California poppy (Eschscholzia californica), cat's ear (Hypochaeris radicata), chickenspike (Sphenoclea zeylanica), Chinese water chestnut (Eleocharis dulcis), cleavers (Galium aparine), clovers (Trifolium repens, Trifolium dubium, Trifolium pratense), cocklebur (Xanthium strumarium), common chickweed (Stellaria media), common groundsel (Senecio vulgaris), common hemp-nettle (Galeopsis tetrahit), common marigold (Calendula officinalis), common nettle (Urtica dioica), common purslane (Portulaca oleracea), common stork's-bill (Erodium cicutarium), corn spurry (Spergula arvensis), creeping bentgrass (Agrostis stolonifera), creeping buttercup (Ranunculus repens), creeping thistle (Cirsium arvense), creeping zinnia (Sanvitalia procumbens), crested wheatgrass (Agropyron cristatum), curly dock (Rumex crispus), dallisgrass (Paspalum dilatatum), dandelion (Taraxacum officinale), delta maidenhair fern (Adiantum raddianum), devil's trumpet (Datura stramonium), diffuse knapweed (Centaurea diffusa), downy brome (Bromus tectorum), Egyptian crowfootgrass (Dactyloctenium aegyptium), english daisy (Bellis perennis), European blackberry (Rubus fruticosus aggregate), false barley (Hordeum murinum), false flax (Camelina sativa), false pimpernel (Lindernia dubia), field bindweed (Convolvulus arvensis), field horestail (Equisetum arvense), field pansy (Viola arvensis), field pennycress (Thlaspi arvense), field poppy (Papaver rhoeas), field-speedwell (Veronica persica), fireweed (Epilobium angustifolium), garden pea (Pisum sativum), garden strawberry (Fragaria x ananassa), garlic mustard (Alliaria petiolata), great blue lobelia (Lobelia siphilitica), green foxtail (Setaria viridis), hoary stock (Matthiola incana), horse weed (Erigeron canadensis), Indian goosegrass (Eleusine indica), ivy-leaved toadflax (Cymbalaria muralis), Japanese knotweed (Fallopia japonica), Japanese mint (Perilla frutescens), johnsongrass (Sorghum halepense), jointed goatgrass (Aegilops cylindrica), kochia (Basia scoparia), lambsquarters (Chenopodium album), lantana (Lantana camara), large crabgrass (Digitaria sanguinalis), large- leaved lupine (Lupinus polyphyllus), Lewis' blue flax (Linum lewisii), little mallow (Malva parviflora), longspine sandbur (Cenchrus longispinus), meadow foxtail (Alopecurus pratensis), Mexican aster (Cosmos bipinnatus), mile-a-minute vine (Ipomoea cairica), millet grass (Fimbristylis miliacea), mouse-ear chickweed (Cerastium fontanum), musk thistle (Carduus nutans), narrowleaf plantain (Plantago lanceolata), northern red oak (Quercus rubra), nutgrass (Cyperus rotundus), orchard grass (Dactylis glomerata), oxeye daisy (Leucanthemum vulgare), palmer amaranth (Amaranthus palmeri), foxtail amaranth (Amaranthus caudatus), para grass (Brachiaria mutica or Urochloa mutica), perennial pepperweed (Lepidium latifolium), perennial ryegrass (Lolium perenne), pickerel weed (Monochoria vaginalis), prickly lettuce (Lactuca serriola), purple dead-nettle (Lamium purpureum), quackgrass (Elymus repens), ragweed (Ambrosia artemisiifolia), reed canary grass (Phalaris arundinacea), rosemary (Rosmarinus officinalis), round-leaf rotala (Rotala rotundifolia), Russian thistle (Salsola tragus), saramollagrass (Ischaemum rugosum), scarlet pimpernel (Anagallis arvensis), scentless mayweed (Tripleurospermum inodorum), seaside petunia (Calibrachoa parviflora), shepard’s-purse (Capsella bursa-pastoris), shiny geranium (Geranium lucidum), sicklepod (Cassia tora or Senna tora), sicklepod (Senna obtusifolia), silver cockscomb (Celosia argentea), small scabious (Scabiosa columbaria), small- flower quickweed (Galinsoga parviflora), small-flowered collinsia (Collinsia parviflora), snapdragon (Antirrhinum majus), stinking chamomile (Anthemis cotula), sweet alyssum (Lobularia maritima), swollen fingergrass (Chloris barbata), tall fescue (Festuca arundinacea or Lolium arundinaceum), three- cornered Jack (Rumex hypogaeus or Emex australis), timothy grass (Phleum pratense), treasure flower (Gazania rigens), velvet leaf (Abutilon theophrasti), viper's bugloss (Echium vulgare), watercress (Rorippa nasturtium-aquaticum), wholly cupgrass (Eriochloa villosa), wild buckwheat (Polygonum convolvulus), wild cabbage (Brassica oleracea), wild chamomile (Matricaria discoidea), wild garlic (Allium vineale), wild mustard (Sinapis arvensis), wild oat (Avena fatue), wild radish (Raphanus raphanistrum), wild-proso millet (Panicum miliaceum), windgrass (Apera spica-venti), wormwood (Artemisia absinthium) and yarrow (Achillea millefolium). Examples of mosses and algae include: anabaena (Anabaena aphanizomenoides), common haircap moss (Polytrichum commune), common stonewort (Chara vulgaris), giant spirogyra (Spirogyra maxima), grass-green algae (Cladophora glomerata), heath star moss (Campylopus introflexus) and silver thread moss (Bryum argenteum). (Bailey, 2014. The bioherbicide approach to weed control using plant pathogens in Integrated Pest Management: Current concepts and ecological perspectives. Ed Abrol DP: p 245-266; Sarangi et al., 2017. Neb Dep of Agr, available at extensionpubs.unl.edu / publication / ec3020 / 2017 / pdf / view / ec3020-2017.pdf). The composition may induce topical herbicidal effect, systemic herbicidal effect or may kill said weed. In embodiments, said weed part is a seed, leaf, stem, bulb or flower. The composition according to the invention may be used for non-selective defoliation, as a vegetative burndown, prior to harvesting of a crop. For example, said composition may be used to desiccate the leaves of a crop. The invention further provides a method for defoliation, the method comprising providing sulfur and a 2ndactive ingredient (ai), in a ratio of 5000:1 – 1:2000 (w / w; sulfur: 2ndai), preferably 1500:1 – 1:500 (w / w; sulfur: 2ndai), to a plant or plant part such that the plant or plant part is contacted with a sufficient amount of said composition. In embodiments, a method of the invention comprises providing a composition of the invention to said plant or plant part such that the plant or plant part is contacted with a sufficient amount of said sulfur and the 2ndai. In embodiments, the invention provides a method for defoliation, the method comprising providing sulfur a 2ndactive ingredient (ai) and 3rdai, in a ratio of 500:1:1 – 1:500:500 (w / w; sulfur: 2ndai: 3rdai), preferably 100:1:1 - 1:100:100 (w / w; sulfur: 2ndai: 3rdai), to a plant or plant part such that the plant or plant part is contacted with a sufficient amount of sulfur and 2ndai, and optionally 3rdai. In embodiments, a method of the invention comprises providing a composition of the invention to said plant or plant part such that the plant or plant part is contacted with a sufficient amount of said sulfur, the 2ndai and 3rdai. In embodiments, said plant part preferably is a leaf, stem, bulb, flower, tuber, vegetable or fruit. Examples of plants wherein defoliation is desired include potato plants, cereals and grains, such as barley, oat, rice, sorghum and wheat, flax, legumes, such as bean, lentil, pea and soybean, maize, mustard plants, oilseed, such as canola, linseed, rapeseed, safflower, sunflower and soy, sugarcane, and cotton plants. The composition according to the invention may be used for sucker control such as grapevine sucker control, wherein small shoots called “suckers” may be removed. The composition may be used to remove “runners”, i.e. small seedling outgrowth. Said suckers and runners compete with developing fruit for energy, water and nutrients. For example, said composition may be used to desiccate the leaves of a sucker of a grapevine, tobacco or other crops. For example, said composition may be used to desiccate the leaves of runners for instance of a strawberry plant. The invention further provides a method for sucker and runner control, the method comprising providing sulfur and a 2ndactive ingredient (ai), in a ratio of 5000:1 – 1:2000 (w / w; sulfur: 2ndai), preferably 1500:1 – 1:500 (w / w; sulfur: 2ndai)to a plant or plant part such that the plant or plant part is contacted with a sufficient amount of said sulfur and 2ndai. In embodiments, a method of the invention comprises providing a composition of the invention to said plant or plant part such that the plant or plant part is contacted with a sufficient amount of said sulfur and the 2ndai. In embodiments, the invention provides a method for sucker and runner control, the method comprising providing sulfur a 2ndactive ingredient (ai) and 3rdai, in a ratio of 500:1:1 – 1:500:500 (w / w; sulfur: 2ndai: 3rdai), preferably 100:1:1 - 1:100:100 (w / w; sulfur: 2ndai: 3rdai), to a plant or plant part such that the plant or plant part is contacted with a sufficient amount of said sulfur and 2ndai, and optionally 3rdai. In embodiments, a method of the invention comprises providing a composition of the invention to said plant or plant part such that the plant or plant part is contacted with a sufficient amount of said sulfur, the 2ndai and 3rdai. In embodiments, said plant part preferably is a leaf or stem. Sulfur and a 2ndactive ingredient (ai), in a ratio of 5000:1 – 1:2000 (w / w; sulfur: 2ndai), preferably 1500:1 – 1:500 (w / w; sulfur: 2ndai), and sulfur a 2ndai and 3rdai, in a ratio of 500:1:1 – 1:500:500 (w / w; sulfur: 2ndai: 3rdai), preferably 100:1:1 - 1:100:100 (w / w; sulfur: 2ndai: 3rdai), can be applied in many different ways. For example, said sulfur and 2ndai) can be applied prior to planting or seeding a crop, by (1) adding to the soil (2) adding to a weed part or root system e.g., via the soil; and (3) adding to water or watering systems applied in e.g., greenhouses or in the field, or can be applied prior to harvesting of a crop and applied by (4) spraying plants or plant parts in the field or in greenhouses optionally using a carrier such as a wax or an oil. In embodiments, the sulfur and 2ndai, can be applied sequentially to a weed, weed part, or soil, preferably to a plant or plant part prior to harvest. For this, the sulfur or 2ndai, may be applied first to a weed, weed part, plant, plant part or soil, followed by the remaining of the sulfur or 2ndai or salt thereof. In embodiments, said remaining of the sulfur or 2ndai or salt thereof may be applied after 2 days, 4 days, 6 days, 7 days, 8 days, 10 days, 12 days, 14 days, 16 days, 18 days, 20 days, 22 days, 24 days, 26 days, 28 days and / or 30 days after applying the first sulfur or 2ndai. In these embodiments, the sulfur and 2ndai are to be applied as separate compositions. Said separate compositions may comprise one or more further active ingredients. In embodiments, the sulfur, the 2ndai and the 3rdai are sequentially applied to a weed, a weed part, plant, plant part or soil. For this, the sulfur, 2ndai or 3rdai is to be applied first to a weed, a weed part, plant, plant part or soil, followed by either one of the remaining of the sulfur, 2ndai and 3rdai, hereafter followed by a further application of the last remainder of the sulfur, 2ndai and 3rdai. In embodiments, said one of the remaining of the sulfur, 2ndai and 3rdai or the last remainder of the sulfur, 2ndai and 3rdai may be applied after 2 days, 4 days, 6 days, 7 days, 8 days, 10 days, 12 days, 14 days, 16 days, 18 days, 20 days, 22 days, 24 days, 26 days, 28 days and / or 30 days after applying the first sulfur, 2ndai or 3rdai or remainder of the sulfur, 2ndai and 3rd. In these embodiments, the sulfur, 2ndai and 3rdai are to be applied as separate compositions. Said separate compositions may comprise one or more further active ingredients. In embodiments, sulfur may be applied first to a weed, weed part, plant or plant part or soil, followed by the 2ndai. Care should be taken to apply the 2ndai in such an amount that the ratio of sulfur to 2ndai is 5000:1 – 1:2000 (w / w; sulfur: 2ndai), preferably 1500:1 – 1:500 (w / w; sulfur: 2nd ai). In embodiments, the 2nd ai may be applied first to a weed, weed part, plant or plant part or soil, followed by sulfur. Care should be taken to apply the 2nd ai in such an amount that the ratio of sulfur to 2ndai is 5000:1 – 1:2000 (w / w; sulfur: 2ndai), preferably 1500:1 – 1:500 (w / w; sulfur: 2nd ai). In embodiments, seeding or planting of a crop in a soil is done 0 days, 1 day, 2 days, 3 days, 4 days, 5 days, 6 days, 7 days, 8 days, 9 days, 10 days, 11 days, 12 days, 13 days, 14 days, 16 days, 18 days, 20 days, 22 days, 24 days, 26 days, 28 days and / or 30 days after applying the sulfur and / or 2ndai and / or optionally 3rdai to said soil. A composition of the invention may be applied without diluting or after dilution. Usually a composition of the invention will be applied via an aqueous or oil dilution, via a dressing, coating or a wax. A composition according to the invention is preferably diluted before use. A composition according to the invention is preferably diluted between 101and 106times, preferably between 10 and 1000 times, in an aqueous solution or in oil, for application in a method of the invention. It is easy to understand that the required amount of the composition of the invention will differ per application as different applications may require different treatments. In general, however, the amount of composition in a ready-to-use final composition such as a spraying suspension, calculated back to the amount of sulfur in the composition required to treat the product (e.g., a soil, a seed, a bulb, weed, a plant in the field) will be between 0.1 and 400 g of sulfur per liter, more preferred less than 35 g / L, more preferred less than 30 gram / L of sulfur, such as 0.2, 0.4, 0.6, 0.8, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8. 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 or 20 grams of sulfur / L. In preferred embodiments, a diluted composition for application in a method of the invention comprises between 0.1 and 50 gram / L of sulfur and between 0.5 and 250 gram / L of 2ndai and optionally between 0.5 and 250 gram / L gram / L of 3rdai. In case of treatment of a soil in which, for example, vegetables or ornamental plants are grown after treatment, 0.01-15.0 grams of sulfur may be applied per m2which is preferably mixed in the top layer of the soil, more preferably 0.02 - 10.0 grams of sulfur per m2. In case of treatment of a weed, weed part, plant, plant part, such as a spray application on a plant or a weed in the field, a typical dosage is 100 - 60000 grams of sulfur per hectare, more preferably 200 - 30000 grams per hectare. In case of a spot application on a weed in for example home garden application 0.01 - 15.0 grams of sulfur may be applied per m2. After treatment of products such as leaves, typically the amount of sulfur on the product is 0.001 - 150.0 mg / dm2. Sulfur and a 2ndactive ingredient (ai), in a ratio of 5000:1 – 1:2000 (w / w; sulfur: 2ndai), preferably 1500:1 – 1:500 (w / w; sulfur: 2ndai), and optionally 3rdai, preferably a composition of the invention, can be added at any suitable time using any suitable method to the growth medium, soil, weed, weed part, plant or plant part. In embodiments, a composition of the invention is applied to a soil before planting a crop, as a preplant herbicide. In embodiments, a composition of the invention is applied to a soil before germination of a weed seed from said soil, as a preemergence herbicide and prevents germinating of weeds seedlings by inhibitionof root growth, shoot growth or both. In embodiments, a composition of theinvention is applied to a plant after germination of a weed seed from said soil, as a postemergence herbicide and prevents further growth of weeds seedlings by inhibition of root growth, shoot growth, leaf growth or both. In embodiments, a composition of the invention is applied to a plant during plant growth, as a control against unwanted suckers or runners. In embodiments, a composition of the invention is applied to a plant prior to harvesting, as a defoliation herbicide. An aspect of the invention provides a use of sulfur for increasing the biological activity of a 2ndai. Said use according to the invention may result in a reduced rate of application of 2ndai and / or an increase of the biological activity of said 2ndai. If a 3rdai is used according to some embodiments of the invention, sulfur increases the biological activity of both the 2ndand 3rdai. Said use may result in a reduced rate of application of 2ndai and / or 3rdai, and / or an increase of the biological activity of said 2ndai and / or said 3rdai. An aspect of the invention provides the application of sulfur for increasing biological activity of a 2ndai that is present in or on a weed, weed part, plant, plant part or soil, whereby sulfur may increase the biological activity of said 2ndai, and optionally 3rdai. The term “reduced rate of application” may refer to a rate of application that is more than 5%, preferably more than 10%, preferably more than 30%, reduced, when compared to the rate of application of the 2ndai and optionally 3rdai without sulfur. The term “increasing biological activity” may refer to an increase biological acitivity that is more than 5%, preferably more than 10%, preferably more than 30%, increased, when compared to the biological activity of the 2ndai and optionally 3rdai without sulfur. Prior to use, a composition comprising a herbicidal composition according to the invention may be dissolved or dispersed in water, or diluted with water, to provide an aqueous composition comprising between 0.001 and 10 % (w / v) of sulfur. If required, an agriculturally acceptable carrier such as a sticking agent may be added to the diluted aqueous composition. A composition according to the invention is preferably diluted 2-5000 times, preferably about 200 times, with an aqueous solvent, preferably water, to contain between 0.0001 and 10 % (w / v) of sulfur, prior to contacting a weed, weed part, plant, plant part or soil with the composition. To control a weed, the invention provides a use of sulfur and a 2ndactive ingredient (ai), in a ratio of 5000:1 – 1:2000 (w / w; sulfur: 2ndai), preferably 1500:1 – 1:500 (w / w; sulfur: 2ndai) and optionally 3rdai. In order to achieve this effect, said weed, weed part, plant, plant part, or soil is contacted with said sulfur and 2ndai and optionally 3rdai, preferably with a composition of the invention, including a diluted aqueous composition as described herein above. Said sulfur and 2ndai, in a ratio of 5000:1 – 1:2000 (w / w; sulfur: 2ndai), preferably 1500:1 – 1:500 (w / w; sulfur: 2ndai) may be used. To control a weed, the invention provides a use of sulfur, a 2ndactive ingredient (ai) and 3rdai, in a ratio of 500:1:1 – 1:500:500 (w / w; sulfur: 2ndai:3rdai), preferably 100:1:1 – 1:100:100 (w / w; sulfur: 2ndai:3rdai). In order to achieve this effect, said weed, weed part, plant, plant part, or soil is contacted with said sulfur, 2ndai and 3rdai, preferably with a composition of the invention, including a diluted aqueous composition as described herein above. Said sulfur, 2ndai and 3rdai, in a ratio of 500:1:1 – 1:500:500 (w / w; sulfur: 2ndai:3rdai), preferably 100:1:1 – 1:100:100 (w / w; sulfur: 2ndai:3rdai) may be used. The invention further provides a method of weed control, comprising contacting said weed, or said weed part with sulfur and a 2ndai and optionally 3rdai, preferably with a diluted aqueous composition according to this invention. The invention further provides a method of preventing, reducing and / or eliminating the presence of a weed, comprising contacting said weed, or part of said weed, with sulfur and a 2ndai and optionally 3rdai, preferably with an aqueous composition according to this invention. The invention further provides a method for controlling, preventing and / or eliminating the presence of a sucker or runner, comprising contacting said sucker or runner, or part of said sucker or runner, with sulfur and a 2ndai and optionally 3rdai, preferably with an aqueous composition according to this invention. The invention further provides a method for accelerating the desiccation, death, and / or defoliation of leaf, comprising contacting said leaf, plant, or part of plant, with sulfur and a 2ndai and optionally 3rdai, preferably with an aqueous composition according to this invention. For said use and said methods, the sulfur and 2ndai and optionally 3rdai, preferably said composition, including a diluted aqueous composition, is preferably sprayed over a weed, plant, or part thereof. Spraying applications, including the use of automatic spraying systems are known to reduce labor costs and are cost- effective. Methods and equipment well-known to a person skilled in the art can be used for that purpose. As is indicated herein above, sulfur and 2ndai and optionally 3rdai may be separately sprayed over a weed, or part thereof. In embodiments, sulfur may firstly be sprayed over a weed or plant or part thereof, as it remains active for a longer period of time after spraying over a weed or plant, or part thereof, when compared in general to a 2ndai. For example, sulfur may be sprayed between 1 day and 2 months before the 2ndai is sprayed over the weed or plant or part thereof. In embodiments, the time period between the two applications may be between 2 days and 1 month, between 4 days and 3 weeks, between 7 days and 2 weeks, such as about 14 days. As will be understood by a person skilled in the art, a first round of spraying may include the sulfur and part of the 2ndai, while the remainder of the 2ndai is included in a second round of spraying, and even in a second and a third round of spraying. As will be understood by a person skilled in the art the optional 3rdai may be sprayed together with the sulfur and / or 2ndai, or may be included in a separate round of spraying. In embodiments, sulfur may be sprayed after the 2ndai. For example, sulfur may be sprayed between 1 day and 2 months after the 2ndai is sprayed over the weed or plant or part thereof. In embodiments, the time period between the two applications may be between 2 days and 1 month, between 4 days and 3 weeks, between 7 days and 2 weeks, such as about 14 days. As will be understood by a person skilled in the art, a first round of spraying may include the 2nd ai and part of the sulfur, while the remainder of the sulfur is included in a second round of spraying, and even in a second and a third round of spraying. As will be understood by a person skilled in the art the optional 3rdai may be sprayed together with the sulfur and / or 2ndai, or may be included in a separate round of spraying. Other methods suitable for contacting weeds or plants or parts thereof with sulfur and 2ndai and optionally 3rdai, preferably with a composition of the invention are also a part of the present invention. These include, but are not limited to, dipping, watering, drenching, introduction into a dump tank, vaporizing, atomizing, fogging, fumigating, painting, brushing, misting, dusting, foaming, spreading-on, packaging and coating (e.g. by means of wax or electrostatically). In addition, sulfur and 2ndai and optionally 3rdai, preferably a composition of the invention, including a diluted aqueous composition, may be injected into the soil. For example, a plant or weed or part thereof may be coated with sulfur and a 2ndai and optionally 3rdai, preferably with a diluted aqueous composition comprising sulfur and a 2ndai and optionally 3rdai according to the invention by submerging the plant or part thereof in a composition comprising sulfur and 2ndai and optionally 3rdai, preferably in a diluted aqueous composition according to the invention, to protect the plant of part thereof against a pathogen and / or to prevent, reduce and / or eliminate the presence of a weed. In embodiments, sulfur and 2ndai and optionally 3rdai, such as a composition according to the invention, are applied at a rate effective for controlling a weed. In embodiments, sulfur and 2ndai and optionally 3rdai, such as a composition according to the invention, are applied at a rate effective for preventing infestation of the weed. In embodiments, sulfur and 2ndai and optionally 3rdai, such as a composition according to the invention, are applied at a rate effective for curing infestation of the weed. In embodiments, a method of the invention is effective for preventing infestation of a weed. In embodiments, a method of the invention is effective for defoliation of a plant. In embodiments, the method is effective for curing infestation of the weed. In embodiments, the method is effective for increasing the herbicidal activity of a 2ndai and optionally 3rdai. In embodiments, the method is effective for prolonging the herbicidal effect of a 2ndai and optionally 3rdai. In embodiments, a method of the invention is effective for decreasing the half maximal effective concentration (EC50) of a 2ndai. In embodiments, the method is effective for decreasing the EC50 by at least 5%. In embodiments, the method is effective for decreasing the EC50 by at least 10%. In embodiments, the method is effective for decreasing the EC50 by at least 25%. In embodiments, the method is effective for decreasing the EC50 by at least 35%. In embodiments, the method is effective for decreasing the EC50 by at least 50%. In embodiments, a method of the invention is effective for decreasing the LC50 of a 2ndai. In embodiments, the method is effective for decreasing the LC50 by at least 5%. In embodiments, the method is effective for decreasing the LC50 by at least 10%. In embodiments, the method is effective for decreasing the LC50 by at least 25%. In embodiments, the method is effective for decreasing the LC50 by at least 50%. In embodiments, the method is effective for decreasing the LC50 by at least 75%. In embodiments, the method is effective for decreasing the LC50 by at least 90%. In embodiments, a method of the invention is effective for decreasing the LC90 of a 2ndai. In embodiments, the method is effective for decreasing the LC90 by at least 5%. In embodiments, the method is effective for decreasing the LC90 by at least 10%. In embodiments, the method is effective for decreasing the LC90 by at least 25%. In embodiments, the method is effective for decreasing the LC90 by at least 50%. In embodiments, the method is effective for decreasing the LC90 by at least 75%. In embodiments, the method is effective for decreasing the LC90 by at least 90%. In embodiments, a method of the invention further comprises applying at least one additional agrochemical to a weed, a weed part, plant, plant part or soil. Said additional agrochemical may be admixed in a tank, or applied sequentially with sulfur and 2ndai and optionally 3rdai, preferably with a composition according to the invention, to the weed, weed part, plant, plant part or soil. Said additional agrochemical may be a fungicide, insecticide, nematicide, acaricide, molluscicide and / or combination thereof. In embodiments, the components of a composition according to the invention, i.e. sulfur and the 2ndai and optionally the 3rdai, are packaged separately. Before applying such composition in a method or use according to the invention, e.g. by spraying, the components are tank mixed, alternatively they are sequentially applied. In embodiments, the components of a composition according to the invention, i.e. sulfur and the 2ndai and optionally the 3rdai, are formulated as a kit-of-parts. Before applying such composition in a method or use according to the invention, e.g. by spraying, the components are mixed, alternatively they are sequentially applied. The invention is illustrated by the following examples without limiting it thereby. Illustrative numbered Embodiments Various embodiments of the invention are hereinafter highlighted in a set of numbered embodiments. These embodiments are not to be interpreted as being limiting on the invention or the inventive concept. P1. A composition comprising sulfur and a 2ndactive ingredient (ai) in a ratio of between 500:1 – 1:500 (w / w; sulfur: 2ndai), preferably between 100:1 and 1:100 (w / w; sulfur: 2ndai) and, optionally, one or more surfactants. P2. The composition of Embodiment P1, wherein the 2ndai is a herbicide. P3. The composition of any one of Embodiments P1-P2, wherein the 2ndai is a classical herbicide, a fatty acid, an oil or a terpenic compound. P4. The composition of any one of Embodiments P3, wherein the fatty acid is selected from an acetic acid, caprylic acid, a pelargonic acid, a capric acid, a lauric acid, a palmitic acid, a oleic acid, a linoleic acid, a linolenic acid, and a ricinoleic acid, or a salt thereof, or any combination thereof. P5. The composition of any one of Embodiments P3 or P4, wherein the oil is selected from a vegetable oil, an animal oil, a mineral oil, a terpenic oil, a blended oil or any combination thereof. P6. The composition of any one of Embodiments P3-P5, wherein the oil is selected from sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, sesame oil, grape seed oil, rice oil, coconut oil, castor oil, paraffinic oil, olefinic oil, thyme oil, oregano oil, lemongrass oil, citrus oil, clove oil, pine oil, cinnamon oil, eucalyptus oil, citronella oil, geranium oil, camphor oil or any combination thereof. P7. The composition of any one of Embodiments P3-P6, wherein the terpenic compound is selected from thymol, cavacrol, citral, limonene, eugenol, terpineol, pinene, cineol, citronellol, geraniol, linalool, camphor or any combination thereof. P8. The composition of any one of Embodiments P1-P7, further comprising at least one antifoaming agent, at least one thickening agent, at least one stabilizing agent, glycerol, or any combinations thereof. P9. The composition of any one of Embodiments P1-P8, further comprising a 3rdactive ingredient (ai) in a ratio of between 500:1:1 – 1:500:500 (w / w; sulfur: 2ndai: 3rdai), preferably between 100:1:1 and 1:100:100 (w / w; sulfur: 2ndai:3rdai). P10. The composition of Embodiment P9, wherein the 2ndai is a fatty acid and the 3rdai is an oil or terpenic compound, preferably the 3rdai is an oil. P11. A method for controlling weed growth, comprising providing sulfur and a 2ndactive ingredient (ai), in a ratio of between 500:1 – 1:500 (w / w; sulfur: 2ndai), preferably between 100:1 and 1:100 (w / w; sulfur: 2ndai) to said weed, weed part, a crop or a soil. P12. The method according to Embodiment P11, wherein the 2ndactive ingredient (ai) is provided 14 days after the application of the elemental sulfur to the weed, weed part, crop or soil. P13. The method according to Embodiments P11 or P12, whereby said sulfur and 2ndactive ingredient (ai) are provided sequentially to the weed, weed part, or soil. P14. The method according to any one of Embodiments P11-P13, whereby said sulfur and 2ndai are provided by a composition of any one of Embodiments P1-P8. P15. The method according to any one of Embodiments P11-P14, further comprising providing a 3rdactive ingredient (ai) in a ratio of between 500:1:1 – 1:500:500 (w / w; sulfur: 2ndai: 3rdai), preferably between 100:1:1 and 1:100:100 (w / w; sulfur: 2ndai:3rdai) to said weed, weed part, a crop or a soil. P16. The method according to Embodiment P15, whereby said sulfur, 2ndai and 3rdai are provided by a composition of any one of Embodiments P9-P10. P17. A method for controlling, preventing and / or eliminating the presence of a sucker or runner, comprising contacting said sucker or runner, or part of said sucker or runner, with sulfur and a 2ndactive ingredient (ai), in a ratio of between 500:1 – 1:500 (w / w; sulfur: 2ndai), preferably between 100:1 and 1:100 (w / w; sulfur: 2ndai), and optionally a 3rdactive ingredient (ai) in a ratio of between 500:1:1 – 1:500:500 (w / w; sulfur: 2ndai: 3rdai), preferably between 100:1:1 and 1:100:100 (w / w; sulfur: 2ndai:3rdai), to said sucker or runner, or part of said sucker or runner. P18. A method for accelerating the desiccation, death, and / or defoliation of leaf, comprising contacting said leaf, plant, or part of plant, with sulfur and a 2ndactive ingredient (ai), in a ratio of between 500:1 – 1:500 (w / w; sulfur: 2ndai), preferably between 100:1 and 1:100 (w / w; sulfur: 2ndai) and optionally a 3rdactive ingredient (ai) in a ratio of between 500:1:1 – 1:500:500 (w / w; sulfur: 2ndai: 3rdai), preferably between 100:1:1 and 1:100:100 (w / w; sulfur: 2ndai:3rdai). P19. Use of sulfur for enhancing the activity of a 2ndactive ingredient (ai), and optionally 3rdai, against a weed such as palmer amaranth, dandelion, black nightshade, thistle, clover, lamsquarters, grasses, chickweed, crabgrass, annual bluegrass, ryegrass, foxtail, common purslane, moss, algae. P20. The use of Embodiment P19 wherein the 2ndai is a classical herbicide, a fatty acid, an oil or a terpenic compound and wherein the optional 3rdai is a classical herbicide, a fatty acid, an oil or a terpenic compound. P21. The use of Embodiment P20 wherein the fatty acid is selected from an acetic acid, a caprylic acid, a pelargonic acid or a capric acid, a lauric acid, a palmitic acid, a oleic acid, a linoleic acid, a linolenic acid, or a ricinoleic acid, or a salt thereof, or any combination thereof. P22. The use of any one of Embodiments P19 or P21, wherein the oil is selected from a vegetable oil, an animal oil, a mineral oil, a terpenic oil, a blended oil or any combination thereof. P23. The use of any one of Embodiments P19-P22, wherein the terpenic compound is selected from thymol, cavacrol, citral, limonene, eugenol, terpineol, pinene, cineol, citronellol, geraniol, linalool, camphor or any combination thereof. P24. The use of any one of Embodiments P19-P23, wherein the oil is selected from sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, sesame oil, grape seed oil, rice oil, coconut oil, castor oil, paraffinic oil, olefinic oil, thyme oil, oregano oil, lemongrass oil, citrus oil, clove oil, pine oil, cinnamon oil, eucalyptus oil, citronella oil, geranium oil, camphor oil and any combination thereof. 5. EXAMPLES General: Determination of synergy In some instances, the stimulation of the herbicidal activity of an active ingredient by sulfur was found to be synergistic. The Colby equation (Colby, 1967. Weeds 15: 20–22) was used to calculate the expected herbicidal activity (E in %) of a combination comprising more than one active ingredients: wherein X and Y are the observed herbicidal activities (in %) of the individual active ingredients x and y, respectively. If the observed herbicidal activity (O in %) of the combination exceeds the expected herbicidal activity (E in %) of the combination and the synergy factor O / E is thus > 1.0, the combined application of the active ingredients and solvent leads to a synergistic herbicidal effect. Example 1: Effect of elemental sulfur application on plants. Materials and methods: To test the possible phytotoxicity effect of elemental sulfur on foxtail amaranth (Amaranthus caudatus), different dose rates were applied using the product Cerasulfur ® (Ceradis). For this, Amaranthus seeds were sown in pots (diameter 10.5 cm) containing soil, that were placed in a greenhouse with the following growing conditions: 16 h day light, at 22 °C temperature, and 75 % humidity. The following concentrations of elemental sulfur were tested: 5, 10, 16, 20, 40, 60, 80 and 100 g / L. One-week-old Amaranthus seedlings were sprayed using 1 mL of treatment, or 1 mL of water as control, using a paint brush. Phytotoxicity was visually recorded every day up to 2 weeks after spraying. Phytotoxicity symptoms would include sporadic discoloration of leaves, browning spots, necrotic lesions and localized desiccation of leaf tissue. Each treatment was performed in three folds. After this period of two weeks, a second application was performed on the plants with the dose rates respective to the first application. Phytotoxicity symptoms was monitored for an additional two weeks. Results: During the whole course of the experiment, for none of the concentrations, phytotoxicity was recorded. It is thus concluded that no phytotoxicity is caused by the elemental sulfur up to a concentration of 100g / L sulfur. Furthermore, no phytotoxicity was caused even after repeating the application resulting in a concentration of up to 200g / L at the end of the experiment. Finally, no herbicidal effect of the elemental sulfur application was observed at any moment of the experiment. Example 2: Effect of elemental sulfur on the herbicidal activity of fatty acids against foxtail amaranth plants (scored using scale 1). In this example, the products Cerasulfur® (Ceradis), and Beloukha® (Belchim Crop Protection) comprising elemental sulfur and pelargonic acid, respectively, were tested. Materials and methods: Amaranthus caudatus seeds were sown in soil, in sowing trays (one sowing plug had a size of 3 cm by 3 cm) in a climate cabinet. Growing conditions in the cabinet were: 8 h day light, at 25 °C temperature, and 70 % humidity. One week after sowing seedlings were sprayed with the treatments. For each of the nine sowing holes, 1 mL of treatment was sprayed using a paint brush. Three days after the treatment the plants were scored. To assess the herbicidal efficacy of the treatment the following scoring scale was used (later on refer as “Scale 1”): 0: all plants are dead, 1: more than 90 % of the plants are dead, 2: more than 50 % and less than 90 % of the plants are dead, 3: less than 50 % and more than 25 % of the plants are dead, 4: less than 25 % of the plants are dead, 5: all plants are alive. One repetition consisted of three sowing holes, for each treatment six repetitions were performed. Treatments and results are presented in Table 1 and scoring was performed three days after spraying. Results: It is concluded that elemental sulfur alone has no herbicidal effect, but that a synergistic herbicidal effect is seen when combined with pelargonic acid at ratios from 1:1 to 1:4 (w / w; elemental sulfur: pelargonic acid). Table 1. Herbicidal effect of elemental sulfur in combination with the fatty acid pelargonic acid on foxtail amaranth plants. Sulfur - FattyAvg herbicidal Observed Expected acid (ppm) score (Scale 1) efficacy (%)efficacy (%) O / E Interaction0 - 0 5.0 0.02000 - 0 5.0 0.01000 - 0 5.0 0.00 - 4000 1.0 80.00 - 2000 3.3 33.32000 - 4000 0.3 93.3 80.0 1.2 Synergism1000 - 4000 0.3 93.3 80.0 1.2 Synergism2000 - 2000 1.0 80.0 33.3 2.4 Synergism1000 - 2000 1.0 80.0 33.3 2.4 SynergismExample 3: Effect of elemental sulfur on the herbicidal activity of fatty acids against foxtail amaranth plants (scored using scale 2). In this example, the products Cerasulfur® (Ceradis), and Beloukha® (Belchim Crop Protection) comprising elemental sulfur and pelargonic acid, respectively, were tested. The experiment was performed as described in the ‘materials and methods’ of example 1, in a greenhouse. Scoring of the herbicidal effect was performed according to the following scale (later on refer as “Scale 2”); 100: no weed control, 90: very poor weed control, 80: poor weed control, 70: poor to deficient weed control, 60: deficient weed control, 50: deficient to moderate weed control, 40: moderate weed control, 30: weed control somewhat less than satisfactory, 20: satisfactory to good weed control, 10: very good to excellent weed control, 0: complete weed destruction. The treatments and results are presented in Table 2, treatments were repeated in 5 folds and scored 7 days after spraying. Results: It is concluded that elemental sulfur on its own has no herbicidal effect, but that a synergistic herbicidal effect is remarked when combined with pelargonic acid at ratios from 0.1:1 to 1:1 (w / w; elemental sulfur: pelargonic acid). Table 2. Herbicidal effect of elemental sulfur in combination with the fatty acid pelargonic acid on foxtail amaranth plants. Sulfur - FattyAvg herbicidal Observed ExpectedO / E Interactionacid (ppm) score (Scale 2) efficacy (%) efficacy (%) 0- 0 96.0 0.00 - 10000 59.0 38.51000 - 0 100.0 -4.25000 - 0 100.0 -4.210000 - 0 100.0 -4.21000 - 10000 22.0 77.1 36.0 2.1 Synergism5000 - 10000 12.0 87.5 36.0 2.4 Synergism10000 - 10000 15.0 84.4 36.0 2.3 SynergismExample 4: Effect of elemental sulfur on the herbicidal activity of fatty acids against foxtail amaranth plants (scored using scale 2). In this example, the products Cerasulfur® (Ceradis), and Beloukha® (Belchim Crop Protection) comprising elemental sulfur and pelargonic acid, respectively, were tested. The experiment was performed as described in the ‘materials and methods’ of example 1, in a greenhouse. The treatments and results are presented in Table 3, treatments were repeated in 3 folds and scored 7 days after spraying. Results: It is concluded that elemental sulfur alone has no herbicidal effect, but that a synergistic herbicidal effect is remarked when combined with pelargonic acid at ratios from 0.1:1 to 2:1 (w / w; elemental sulfur: pelargonic acid). Table 3. Herbicidal effect of elemental sulfur in combination with the fatty acidpelargonic acid on foxtail amaranth plants.Sulfur - Fatty Avg herbicidalObserved Expected acid (ppm) score (Scale 2) efficacy (%)efficacy (%) O / E Interaction0 - 0 100.0 0.00 - 6000 60.0 40.00 - 4000 86.7 13.38000 - 0 100.0 0.06000 - 0 100.0 0.04000 - 0 100.0 0.03000 - 0 100.0 0.02000 - 0 100.0 0.0600 - 0 100.0 0.0400 - 0 100.0 0.06000 - 6000 23.3 76.7 40.00 1.92 Synergism3000 - 6000 40.0 60.0 40.00 1.50 Synergism600 - 6000 50.0 50.0 40.00 1.25 Synergism8000 - 4000 60.0 40.0 13.33 3.00 Synergism4000 - 4000 46.7 53.3 13.33 4.00 Synergism2000 - 4000 60.0 40.0 13.33 3.00 Synergism400 - 4000 73.3 26.7 13.33 2.00 SynergismExample 5: Effect of elemental sulfur on the herbicidal activity of fatty acids against foxtail amaranth plants in a sequential application. With the previous examples it has been clearly demonstrated that when adding elemental sulphur to pelargonic acid, a synergistic herbicidal effect was remarked at different ratio and dose rates. In examples 2 to 4 elemental sulfur and pelargonic acid were simultaneously applied. In the next example, the application of the two compounds was performed sequentially, starting with the application of elemental sulfur (Cerasulfur®) followed by the application of pelargonic acid (Beloukha®) one week later. As a positive control, on the day of the second application, untreated plants were sprayed with elemental sulfur and pelargonicacid simultaneously. The foxtail amaranth seedlings were grown as described in‘materials and methods’ of example 2 in a growth cabinet with the difference that square pots were used here (6 cm x 6 cm). The treatments and results are presented in Table 4, treatments were repeated in 3 folds and scored 1 day after the last spraying according to the Scale 1. Results: It is concluded that even if elemental sulfur and pelargonic acid are sprayed sequentially, the herbicidal effect is similar to that of an application where elemental sulfur and pelargonic acid are applied simultaneously. Table 4. Herbicidal effect of elemental sulfur in combination with the fatty acid pelargonic acid on foxtail amaranth plants when applied sequentially. 1st application: 2nd application 1 Avg Efficacy Application Sulfur (ppm) week later: Sulfur herbicidal (%) – pelargonic acid score (Scale (ppm) 1) 00 5.0 0.0 n.a.4000 0 - 4000 0.7 86.7 Sequential0 4000 - 4000 0.7 86.7 Simultaneous6000 0 - 2000 2.0 60.0 Sequential0 6000 - 2000 3.0 40.0 Simultaneous2000 0 - 2000 2.3 53.3 Sequential0 2000 - 2000 3.0 40.0 SimultaneousExample 6: Effect of elemental sulfur on mineral oil like paraffinic oil on herbicidal efficacy against foxtail amaranth plants. In this example, the product Cerasulfur® (Ceradis) comprising elemental sulfur and paraffinic oil (Carl Roth) were tested. The experiment was performed as described in ‘materials and methods’ of example 2 in a growth cabinet, with the difference that square pots (6cm x 6cm) were used in this example. The treatments and results are presented in Table 5, treatments were repeated in 3 folds and scored 3 days after spraying according to scale 1. Results: It is concluded that elemental sulfur alone has no herbicidal effect, but that a synergistic herbicidal effect is seen when combined with paraffinic oil at ratios from 2.5:1 to 1:4 (w / w; elemental sulfur: paraffinic oil). Surprisingly, it was also observed that the herbicidal effect was slower when sulfur was combined with mineral oil than when combined with pelargonic acid. While herbicidal effects could be observed a few hours after the application of elemental sulfur and pelargonic acid, in the case of the mixture with the mineral oil, a delayed herbicidal effect was remarked. Table 5. Herbicidal effect of elemental sulfur in combination with the mineral oil,i.e. paraffinic oil, on foxtail amaranth plants. Sulfur – Avg herbicidal Observed ExpectedO / E Interactionmineral oil score (Scale 1) efficacy (%) efficacy (ppm) (%) 0- 0 5.0 0.01000 - 0 5.0 0.02000 - 0 5.0 0.04000 - 0 5.0 0.08000 - 0 5.0 0.010000 - 0 5.0 0.00 - 4000 4.8 3.30 - 8000 4.8 3.31000 - 4000 2.0 60.0 3.3 18.0 Synergism2000 - 4000 2.0 60.0 3.3 18.0 Synergism4000 - 4000 1.5 70.0 3.3 21.0 Synergism8000 - 4000 2.2 56.7 3.3 17.0 Synergism10000 - 4000 1.8 63.3 3.3 19.0 Synergism2000 - 8000 1.5 70.0 3.3 21.0 Synergism4000 - 8000 1.2 76.7 3.3 23.0 Synergism8000 - 8000 0.7 86.7 3.3 26.0 Synergism10000 - 8000 1.0 80.0 33.3 2.4 SynergismExample 7: Effect of elemental sulfur on vegetable oil like sunflower oil on herbicidal efficacy against foxtail amaranth. In this example, the product Cerasulfur® (Ceradis) comprising elemental sulfur and sunflower oil (brand Albert Heijn, obtained at a supermarket) were tested. The experiment was performed as described in the ‘materials and methods’ of example 6 in a growth cabinet. The treatments and results are presented in Table 6. Results: It is concluded that elemental sulfur alone has no herbicidal effect, but that a synergistic herbicidal effect is remarked when combined with sunflower oil at ratios from 2.5:1 to 1:4 (w / w; elemental sulfur: sunflower oil). Surprisingly, it was also observed that the herbicidal effect was slower when sulfur was combined with sunflower oil than when combined with pelargonic acid. While herbicidal effects could be observed a few hours after the application of elemental sulfur and pelargonic acid, in the case of the mixture with the vegetable oil, a delayed herbicidal effect was observed. Table 6. Herbicidal effect of elemental sulfur in combination with the vegetable oil,i.e. sunflower oil, on foxtail amaranth plants.Sulfur – Avg herbicidal Observed ExpectedO / E Interactionvegetable oil score (Scale 1) efficacy efficacy (%) (ppm) (%) 0- 0 5.0 0.01000 - 0 5.0 0.02000 - 0 5.0 0.04000 - 0 5.0 0.08000 - 0 5.0 0.010000 - 0 5.0 0.00 - 4000 5.0 0.00 - 8000 5.0 0.01000 - 4000 2.7 46.7 0.0 - Synergism2000 - 4000 3.0 40.0 0.0 - Synergism4000 - 4000 2.0 60.0 0.0 - Synergism8000 - 4000 0.3 93.3 0.0 - Synergism10000 - 4000 1.0 80.0 0.0 - Synergism2000 - 8000 2.7 46.7 0.0 - Synergism4000 - 8000 1.3 73.3 0.0 - Synergism8000 - 8000 2.0 60.0 0.0 - Synergism10000 - 8000 1.0 80.0 0.0 - SynergismExample 8: Effect of elemental sulfur and sunflower oil on the herbicidal efficacy of pelargonic acid on foxtail amaranth. In this example, the product Cerasulfur® comprising elemental sulfur, sunflower oil (brand Albert Heijn, obtained at a supermarket), and pelargonic acid (Beloukha®) were tested. Since we surprisingly observed that elemental sulfur has a synergistic effect with vegetable oil, and that the herbicidal effect is different than the one observed with pelargonic, the combination of elemental sulfur, pelargonic acid, and vegetable oil was tested. These experiments were performed as described in ‘materials and methods’ of example 6 in a growth cabinet. The treatments and results are presented in Tables 7a and 7b. Results: It is concluded that elemental sulfur has no herbicidal effect on its own, but that a synergistic herbicidal effect is observed when sulfur is combined with pelargonic acid and sunflower oil at ratio from 1:1:1 to 1:1:0.5 (w / w; elemental sulfur: pelargonic acid: sunflower oil). In addition the combination of the three components provides a higher herbicidal effect than any combination of two components. It is concluded that by adding the three components a stronger and more effective herbicidal effect is obtained.

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In this example, the product Cerasulfur® (Ceradis) comprising elemental sulfur and sunflower oil (brand Albert Heijn, supermarket), maize oil (Carl Roth), soybean oil (Carl Roth), rice oil (brand King, supermarket), rapeseed oil (brand Albert Heijn, supermarket), peanut oil (brand Albert Heijn, supermarket), olive oil (brand Albert Heijn, supermarket), Linseed oil (Croda), Grape seed oil (Albert Heijn, supermarket) were tested. The experiment was performed as described in the ‘materials and methods’ of example 6 in a growth cabinet. The treatments and results are presented in Table 8, scoring was performed two days after treatment. Results: It is concluded that elemental sulfur alone has no herbicidal effect, but that a synergistic herbicidal effect is remarked when combined with all the vegetable oils tested at ratios 2:1 and 1:1 (w / w; elemental sulfur: vegetable oil). Table 8. Herbicidal effect of elemental sulfur (ES) in combination with severalvegetable oils on foxtail amaranth plants.Treatment Sulfur – Avg Observe Expecte O / E Interaction vegetable oil herbicid d d (ppm) al score efficacy efficacy (Scale 1) (%) (%) Water 0 - 0 5.0 0.0 ES 8000 - 0 5.0 0.0ES 4000 - 0 5.0 0.0 Maize oil 0 - 4000 5.0 0.0 Sunflower oil 0 - 4000 5.0 0.0 Soybean oil 0 - 4000 5.0 0.0 Rice oil 0 - 4000 5.0 0.0 Rapeseed oil 0 - 4000 5.0 0.0 Peanut oil 0 - 4000 5.0 0.0 Olive oil 0 - 4000 5.0 0.0 Linseed oil 0 - 4000 5.0 0.0 Grape seed oil 0 - 4000 5.0 0.0 ES + Maize oil 8000 - 4000 1.3 73.3 0.0 - Synergism ES + Soybean oil 8000 - 4000 1.7 66.7 0.0 - Synergism ES + Rice oil 8000 - 4000 1.3 73.3 0.0 - Synergism ES + Rapeseed oil 8000 - 4000 1.7 66.7 0.0 - Synergism ES + Peanut oil 8000 - 4000 1.3 73.3 0.0 - Synergism ES + Olive oil 8000 - 4000 1.7 66.7 0.0 - Synergism ES + Linseed oil 8000 - 4000 1.0 80.0 0.0 - Synergism ES + Grape seed 8000 - 4000 1.3 73.3 0.0 - Synergism ES + Maize oil 4000 - 4000 2.0 60.0 0.0 - Synergism ES + Sunflower oil 4000 - 4000 2.0 60.0 0.0 - Synergism ES + Soybean oil 4000 - 4000 1.7 66.7 0.0 - Synergism ES + Rice oil 4000 - 4000 1.7 66.7 0.0 - Synergism ES + Rapeseed oil 4000 - 4000 1.7 66.7 0.0 - Synergism ES + Peanut oil 4000 - 4000 1.3 73.3 0.0 - Synergism ES + Olive oil 4000 - 4000 2.0 60.0 0.0 - Synergism ES + Linseed oil 4000 - 4000 1.3 73.3 0.0 - Synergism ES + Grape seed oil 4000 - 4000 1.3 73.3 0.0 - Synergism Example 10: Effect of elemental sulfur on the herbicidal activity of fatty acids against foxtail amaranth plants. In this example, the products Cerasulfur® (Ceradis) and Beloukha® (Belchim Crop Protection) comprising elemental sulfur and pelargonic acid, respectively, were tested. The experiment was performed as described in the ‘materials and methods’ of example 6 in a growth cabinet. The treatments and results are presented in Tables 9a and 9b, scoring was performed two days after treatment. Results: It is concluded that elemental sulfur alone has no herbicidal effect, but that a synergistic herbicidal effect is remarked when combined with pelargonic acid tested at ratios 100:1 to 1:100 (w / w; elemental sulfur: pelargonic acid). Table 9a. Herbicidal effect of elemental sulfur in combination with fatty acid onfoxtail amaranth plants.Sulfur – Avg herbicidal Observed Expected O / E Interaction pelargonic acid score (Scale 1) efficacy (%) efficacy (%) (ppm) 0 - 0 5.0 0.0 200 - 0 5.0 0.0 60 - 0 5.0 0.0 20 - 0 5.0 0.0 0 - 2000 3.0 40.0 200 - 2000 1.7 66.7 40.0 1.7 Synergism 60 - 2000 2.3 53.3 40.0 1.3 Synergism 20 - 2000 2.0 60.0 40.0 1.5 Synergism Table 9b. Herbicidal effect of elemental sulfur in combination with fatty acid onfoxtail amaranth plants.Sulfur – Avg herbicidal Observed Expected O / E Interaction pelargonic acid score (Scale 1) efficacy efficacy (%) (ppm) (%) 0- 0 5.00 0.008000 - 0 5.00 0.000 - 800 5.00 0.000 - 160 5.00 0.000 - 80 5.00 0.008000 - 800 2.00 60.00 0.00 - Synergism8000 - 160 4.00 20.00 0.00 - Synergism8000 - 80 4.33 13.33 0.00 - SynergismExample 11: Effect of elemental sulfur on the herbicidal activity of vegetable oil against foxtail amaranth plants. In this example, the products Cerasulfur® (Ceradis) comprising elemental sulfur and sunflower oil (brand Albert Heijn, supermarket) were tested. The experiment was performed as described in the ‘materials and methods’ of example 6 in a growth cabinet. The treatments and results are presented in Tables 10a and 10b, scoring was performed two days after treatment. Results: It is concluded that elemental sulfur alone has no herbicidal effect, but that a synergistic herbicidal effect is remarked when combined with sunflower oil tested at ratios 100:1 to 1:100 (w / w; elemental sulfur: sunflower oil). Table 10a. Herbicidal effect of elemental sulfur in combination with sunflower oilon foxtail amaranth plants.Sulfur – Avg herbicidal Observed Expected O / E Interaction sunflower oil score (Scale 1) efficacy efficacy (%) (ppm) (%) 0- 0 5.0 0.0400 - 0 5.0 0.0200 - 0 5.0 0.040 - 0 5.0 0.00 - 4000 5.0 0.0400 - 4000 2.7 46.7 0.0 - Synergism200 - 4000 4.0 20.0 0.0 - Synergism40 - 4000 4.3 13.3 0.0 - SynergismTable 10b. Herbicidal effect of elemental sulfur in combination with sunflower oilon foxtail amaranth plants.Sulfur – Avg herbicidal Observed Expected O / E Interaction sunflower oil score (Scale 1) efficacy efficacy (%) (ppm) (%) 0- 0 5.0 0.08000 - 0 5.0 0.00 - 800 5.0 0.00 - 160 5.0 0.00 - 80 5.0 0.08000 - 800 1.3 73.3 0.00 - Synergism8000 - 160 2.3 53.3 0.00 - Synergism8000 - 80 3.3 33.3 0.00 - SynergismExample 12: Effect of elemental sulfur on the herbicidal activity of 2ndactive ingredient against foxtail amaranth plants. In this example, the products Cerasulfur® (Ceradis) comprising elemental sulfur, and the following 2ndactive ingredients: acetic acid (Carl Roth), capric acid (Carl Roth), citric acid (Carl Roth), citral (Thermo Scientific), clove oil (Etos), and thyme oil (Etos), were tested. The experiment was performed as described in the ‘materials and methods’ of example 6 in a growth cabinet. The treatments and results are presented in Table 11, scoring was performed two days after treatment. Results: It is concluded that elemental sulfur alone has no herbicidal effect, but that a synergistic herbicidal effect is remarked when combined with acetic acid, capric acid, citric acid, citral, clove oil or thyme oil at ratios 2:1 and 1:1 (w / w; elemental sulfur: 2ndai). Table 11. Herbicidal effect of elemental sulfur (ES) in combination with 2ndactiveingredient on foxtail amaranth plants.Treatment Sulfur –Avg Observ Expec O / Interactio active herbicid ed ted E n ingredient al score efficacy efficac (ppm) (Scale 1) (%) y (%) Water 0 - 0 5.0 0.0ES 8000 - 0 5.0 0.0ES 6000 - 0 5.0 0.0ES 4000 - 0 5.0 0.0ES 2000 - 0 5.0 0.0Acetic acid 0 - 8000 4.7 6.7Acetic acid 0 - 6000 5.0 0.0Capric acid 0 - 2000 1.3 73.3Citric acid 0 - 4000 4.67 6.67Citral 0 - 4000 4.7 6.7Clove oil 0 - 4000 3.7 26.7Thyme oil 0 - 4000 3.0 40.0ES + Acetic acid 8000 - 8000 4.0 20.0 6.7 3.0 SynergismES + Acetic acid 6000 - 6000 4.0 20.0 0.0 - SynergismES + Capric acid 4000 - 2000 0.3 93.3 73.3 1.3 SynergismES + Capric acid 2000 - 2000 0.3 93.3 73.3 1.3 SynergismES + Citric acid 8000 - 4000 4.00 20.00 6.67 3.0 SynergismES + Citric acid 4000 - 4000 4.00 20.00 6.67 3.0 SynergismES + Citral 8000 - 4000 2.0 60.0 6.7 9.0 SynergismES + Citral 4000 - 4000 2.3 53.3 6.7 8.0 SynergismES + Clove oil 8000 - 4000 1.7 66.7 26.7 2.5 SynergismES + Clove oil 4000 - 4000 2.0 60.0 26.7 2.3 SynergismES + Thyme oil 8000 - 4000 1.3 73.3 40.0 1.8 SynergismES + Thyme oil 4000 - 4000 1.7 66.7 40.0 1.7 SynergismExample 13: Effect of elemental sulfur on the herbicidal activity of pelargonic acid against various weeds. In this example, the product Cerasulfur® (Ceradis), and Beloukha® (Belchim Crop Protection) comprising elemental sulfur and pelargonic acid, respectively, were tested. The experiment was performed as described in example 6 in a growth cabinet, treatments were scored according to scale 1. Different types of plant species were used as representative of different types of weeds, these included purslane (Portucala oleracea), ryegrass (Lolium perenne), red clover (Trifolium pratense), rucola (Eruca vericaria). As a representative of a brassica type of weed broccoli (Brassica oleracea) was used. The treatments and results are presented in Tables 12a, 12b, 12c, treatments in those tables were scored at 2, 5 and 3 days after treatment, respectively. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with pelargonic acid at ratios from 2:1 to 1:2 (w / w; elemental sulfur: pelargonic acid) across a broad range of weed types. Table 12a. Herbicidal effect of elemental sulfur in combination with the pelargonic acid on purslane. Sulfur – Expected Avg herbicidal Observed Pelargonic efficacy O / E Interaction score (Scale 1) efficacy (%) acid (ppm) (%) 0- 0 5.0 0.0 5.01000 - 0 5.0 0.0 5.02000 - 0 5.0 0.0 5.04000 - 0 5.0 0.0 5.00 - 2000 1.0 80.0 1.01000 - 2000 0.0 100.0 80.0 1.3 Synergism2000 - 2000 0.3 93.3 80.0 1.2 Synergism4000 - 2000 0.7 86.7 80.0 1.1 SynergismTable 12b. Herbicidal effect of elemental sulfur in combination with the pelargonic acid on ryegrass, red clover, and rucola. Sulfur – Expected Avg herbicidal Observed Pelargonic efficacy O / E Interaction score (Scale 1) efficacy (%) acid (ppm) (%) 0- 0 5.0 0.0 5.01000 - 0 5.0 0.0 5.02000 - 0 5.0 0.0 5.04000 - 0 5.0 0.0 5.0Ryegrass 0- 2000 4.3 13.31000 - 2000 3.7 26.7 13.3 2.0 Synergism2000 - 2000 3.7 26.7 13.3 2.0 Synergism4000 - 2000 3.3 33.3 13.3 2.5 SynergismRed clover 0- 2000 3.0 40.01000 - 2000 2.0 60.0 40.0 1.5 Synergism2000 - 2000 2.3 53.3 40.0 1.3 Synergism4000 - 2000 2.0 60.0 40.0 1.5 SynergismRucola 0- 2000 4.3 13.31000 - 2000 3.7 26.7 13.3 2.0 Synergism2000 - 2000 2.7 46.7 13.3 3.5 Synergism4000 - 2000 3.0 40.0 13.3 3.0 SynergismTable 12c. Herbicidal effect of elemental sulfur in combination with the pelargonic acid on broccoli. Sulfur – Expected Avg herbicidal Observed Pelargonic efficacy O / E Interaction score (Scale 1) efficacy (%) acid (ppm) (%) 0- 0 5.00 0.001000 - 0 5.00 0.002000 - 0 5.00 0.004000 - 0 5.00 0.000 - 2000 4.67 6.671000 - 2000 3.33 33.33 6.67 5.00 Synergism2000 - 2000 2.33 53.33 6.67 8.00 Synergism4000 - 2000 2.33 53.33 6.67 8.00 SynergismExample 14: Effect of elemental sulfur on the herbicidal activity of glyphosate using tomato leaflets. In this example, the products Cerasulfur® (Ceradis), and Roundup PowerFlex® (Bayer) comprising elemental sulfur and glyphosate, respectively, were tested. The effects of the treatments were tested on tomato leaves. Tomato leaves were taken from 5-week-old tomato plants that were grown under greenhouse conditions (16 h day light, at 22 °C temperature, and 75 % humidity). In a plastic container, wet absorbing paper was placed, and the tomato leaflets were placed downside up. Treatments containing the solo active ingredients or the combinations were applied by placing a 10µl droplet on the leaflet. Per leaflet six drops were applied. Per treatment three leaflets were used corresponding to three replicates. The containers were closed with a transparent lid; the containers were kept at room temperature on a table. The treatments were scored two days after application according to the following scale (later referred as “Scale 3”): 5: No effect, 4: un- uniformed herbicidal effect is visible in the area in contact with the droplet, 3: herbicidal effect is uniformed and covers the total area where the droplet was placed, 2: the herbicidal effect has spread beyond the area covered by the droplet, 1: herbicidal effect has spread and area between droplets are overlapping, 0: herbicidal effect is high leaves is 80 to 100% dead. The treatments and results are presented in Table 13. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with glyphosate at ratios from 1:10 to 1:100 (w / w; elemental sulfur: glyphosate). Table 13. Herbicidal effect of elemental sulfur in combination with glyphosate tested on tomato leaflets. Sulfur – Expected Avg herbicidal Observed Glyphosate efficacy O / E Interaction score (Scale 3) efficacy (%) (ppm) (%) 0- 0 5.0 0.01000 - 0 5.0 0.0200 - 0 5.0 0.0100 - 0 5.0 0.00 - 10000 4.3 13.31000 - 10000 4.0 20.0 13.3 1.5 Synergism200 - 10000 4.0 20.0 13.3 1.5 Synergism100 - 10000 4.0 20.0 13.3 1.5 SynergismExample 15: Effect of elemental sulfur on the herbicidal activity of caprylic acid using tomato leaflets. In this example, the products Cerasulfur® (Ceradis) comprising elemental sulfur and caprylic acid (Carl Roth), were tested. The experiment was performed as described in example 14, treatments were scored according to scale 3. The treatments and results are presented in Table 14. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with caprylic acid at ratios from 1:10 to 1:100 (w / w; elemental sulfur: caprylic acid). Table 14. Herbicidal effect of elemental sulfur in combination with caprylic acid tested on tomato leaflets. Sulfur – Expected Avg herbicidal Observed Caprylic efficacy O / E Interaction score (Scale 3) efficacy (%) acid (ppm) (%) 0- 0 5.0 0.01000 - 0 5.0 0.0200 - 0 5.0 0.0100 - 0 5.0 0.00 - 10000 1.7 66.71000 - 10000 1.0 80.0 66.7 1.2 Synergism200 - 10000 1.0 80.0 66.7 1.2 Synergism100 - 10000 1.0 80.0 66.7 1.2 SynergismExample 16: Effect of elemental sulfur on the herbicidal activity of geraniol and thymol using tomato leaflets. In this example, the products Cerasulfur® (Ceradis) comprising elemental sulfur in combination with geraniol or thymol, were tested. The experiment was performed as described in example 14, treatments were scored 6 days after application according to scale 3. The treatments and results are presented in Table 15. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with geraniol at ratios from 1:10 to 1:100 (w / w; elemental sulfur: geraniol) and when combined to thymol at ratios from 1:1 to 1:10 (elemental sulfur: thymol). Table 15. Herbicidal effect of elemental sulfur in combination with geraniol or thymol tested on tomato leaflets. Expected Sulfur – 2nd Avg herbicidal Observed efficacy O / E Interaction AI (ppm) score (Scale 3) efficacy (%) (%) 0- 0 5.0 0.01000 - 0 5.0 0.0200 - 0 5.0 0.0100 - 0 5.0 0.0Geraniol 0- 10000 2.3 53.31000 - 10000 1.9 62.2 53.3 1.2 Synergism 200 - 10000 1.9 61.1 53.3 1.1 Synergism100 - 10000 2.1 58.9 53.3 1.1 SynergismThymol 0- 1000 4.7 5.61000 - 1000 4.0 20.0 5.6 3.6 Synergism200 - 1000 3.8 23.3 5.6 4.2 Synergism100 - 1000 4.0 20.0 5.6 3.6 SynergismExample 17: Effect of elemental sulfur on the herbicidal activity of limonene using tomato leaflets. In this example, the products Cerasulfur® (Ceradis) comprising elemental sulfur in combination with limonene, were tested. The experiment was performed as described in example 14, treatments were scored 6 days after application according to scale 3. The treatments and results are presented in Table 16. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with limonene at ratios from 1:10 to 1:50 (w / w; elemental sulfur: limonene). Table 16. Herbicidal effect of elemental sulfur in combination with limonene tested on tomato leaflets. Sulfur – Expected Avg herbicidal Observed Limonene efficacy O / E Interaction score (Scale 3) efficacy (%) (ppm) (%) 0- 0 5.0 0.01000 - 0 5.0 0.0200 - 0 5.0 0.00 - 10000 4.7 5.61000 - 10000 3.5 30.0 5.6 5.4 Synergism200 - 10000 4.6 8.9 5.6 1.6 SynergismExample 18: Effect of elemental sulfur on the herbicidal activity of clove oil and cinnamon oil using Virginia creeper leaflets. In this example, the products Cerasulfur® (Ceradis) comprising elemental sulfur in combination with clove oil or cinnamon oil, were tested. The experiment was performed as described in example 14 with the exception that leaves from the plant Virginia creeper (Parthenocissus quinquefolia) was used. These leaves were collected from a house garden. The treatments were scored 3 days after application according to scale 3. The treatments and results are presented in Table 17. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with clove oil at ratios from 1:10 to 1:100 (w / w; elemental sulfur: clove oil) and when combined to cinnamon oil at ratios from 1:1 to 1:10 (elemental sulfur: cinnamon oil). Table 17. Herbicidal effect of elemental sulfur in combination with clove oil or cinnamon oil tested on Virginia creeper leaflets. Avg Expected Sulfur – 2nd AI herbicidal Observed efficacy O / E Interaction (ppm) score (Scale efficacy (%) (%) 3) 0- 0 5.0 0.01000 - 0 5.0 0.0200 - 0 5.0 0.0100 - 0 5.0 0.0Clove oil 0- 10000 3.0 40.01000 - 10000 2.3 53.3 40.0 1.3 Synergism200 - 10000 2.1 58.3 40.0 1.5 Synergism100 - 10000 2.6 48.3 40.0 1.2 SynergismCinnamon oil 0- 1000 2.8 45.01000 - 1000 2.4 51.7 45.0 1.1 Synergism200 - 1000 2.6 47.3 45.0 1.1 Synergism100 - 1000 2.5 50.0 45.0 1.1 Synergism Example 19: Effect of elemental sulfur on the herbicidal activity of phenmedipham using Virginia creeper leaflets. In this example, the products Cerasulfur® (Ceradis) and Betasana® SC (UPL) comprising the active ingredients elemental sulfur and phenmedipham, respectively, were tested. The experiment was performed as described in example 14 with the exception that leaves from the plant Virginia creeper (Parthenocissus quinquefolia) was used. These leaves were collected from a house garden. The treatments were scored 3 days after application according to scale 3. The treatments and results are presented in Table 18. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with phenmedipham at ratios from 1:10 to 1:100 (w / w; elemental sulfur: phenmedipham). Table 18. Herbicidal effect of elemental sulfur in combination with phenmedipham tested on Virginia creeper leaflets. Sulfur – Observed Expected Avg herbicidal Phenmedipham efficacy efficacy O / E Interaction score (Scale 3) (ppm) (%) (%) 0- 0 5.0 0.01000- 0 5.0 0.0100 - 0 5.0 0.00 - 10000 4.9 1.71000 - 10000 4.3 13.3 1.7 8.0 Synergism100 - 10000 4.2 16.7 1.7 10.0 SynergismExample 20: Effect of elemental sulfur on the herbicidal activity of acetic acid using Virginia creeper leaflets. In this example, the products Cerasulfur® (Ceradis) comprising elemental sulfur in combination with acetic acid (Carl Roth), were tested. The experiment was performed as described in example 14 with the exception that leaves from the plant Virginia creeper (Parthenocissus quinquefolia) was used. These leaves were collected from a house garden. Treatments were scored 5 days after application according to scale 3. The treatments and results are presented in Table 19. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with acetic acid at ratio 1:10 (w / w; elemental sulfur: acetic acid). Table 19. Herbicidal effect of elemental sulfur in combination with acetic acid tested on Virginia creeper leaflets. Sulfur – Expected Avg herbicidal Observed Acetic acid efficacy O / E Interaction score (Scale 3) efficacy (%) (ppm) (%) 0- 0 5.0 0.01000 - 0 5.0 0.00 - 10000 4.4 11.71000 - 10000 3.5 30.0 11.7 2.6 SynergismExample 21: Effect of elemental sulfur on the herbicidal activity of citral using Virginia creeper leaflets. In this example, the products Cerasulfur® (Ceradis) comprising elemental sulfur in combination with citral (Thermo Scientific), were tested. The experiment was performed as described in example 14 with the exception that leaves from the plant Virginia creeper (Parthenocissus quinquefolia) was used. These leaves were collected from a house garden. Treatments were scored 5 days after application according to scale 3. The treatments and results are presented in Table 20. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with citral at ratios from 1:10 to 1: 50 (w / w; elemental sulfur: citral). Table 20. Herbicidal effect of elemental sulfur in combination with citral tested on Virginia creeper leaflets. Expected Sulfur – Avg herbicidal Observed efficacy O / E Interaction Citral (ppm) score (Scale 3) efficacy (%) (%) 0- 0 5.0 0.01000 - 0 5.0 0.0200 - 0 5.0 0.00 - 10000 1.8 63.31000 - 10000 0.8 85.0 63.3 1.3 Synergism200 - 10000 1.3 73.3 63.3 1.2 SynergismExample 22: Effect of elemental sulfur on the herbicidal activity of thyme oil and fennel oil using bindweed leaflets. In this example, the products Cerasulfur® (Ceradis) comprising elemental sulfur in combination with thyme oil or fennel oil, were tested. The experiment was performed as described in example 14 with the exception that leaves from the bindweed plant (Calystegia pulchra) was used. These leaves were collected from a house garden. The treatments were scored 4 days after application according to scale 3. The treatments and results are presented in Table 21. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with thyme oil or with fennel oil at ratios from 1:10 to 1:100 (w / w; elemental sulfur: thyme oil or elemental sulfur: fennel oil). Table 21. Herbicidal effect of elemental sulfur in combination with thyme oil or fennel oil tested on bindweed leaflets. Avg Expected Sulfur – 2nd AI herbicidal Observed efficacy O / E Interaction (ppm) score (Scale efficacy (%) (%) 3) 0- 0 5.0 0.01000 - 0 5.0 0.0200 - 0 5.0 0.0100 - 0 5.0 0.0Thyme oil 0- 10000 3.8 23.31000 - 10000 2.4 52.2 23.3 2.2 Synergism200 - 10000 2.9 41.1 23.3 1.8 Synergism100 - 10000 3.0 40.0 23.3 1.7 SynergismFennel oil 0- 10000 3.5 30.01000 - 10000 2.8 43.3 30.0 1.4 Synergism200 - 10000 2.9 42.2 30.0 1.4 Synergism100 - 10000 2.8 44.4 30.0 1.5 SynergismExample 23: Effect of elemental sulfur on the herbicidal activity of maize oil and soybean oil using bindweed leaflets. In this example, the products Cerasulfur® (Ceradis) comprising elemental sulfur in combination with maize oil (Albert Heijn) or soybean oil (Albert Heijn), were tested. The experiment was performed as described in example 14 with the exception that leaves from the bindweed plant (Calystegia pulchra) was used. These leaves were collected from a house garden. The treatments were scored 5 days after application according to scale 3. The treatments and results are presented in Table 22. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with maize oil or with soybean oil at ratios from 1:10 to 1:100 (w / w; elemental sulfur: maize oil or elemental sulfur: soybean oil). Table 22. Herbicidal effect of elemental sulfur in combination with maize oil or soybean oil tested on bindweed leaflets. Expected Sulfur – 2nd Avg herbicidal Observed efficacy O / E Interaction AI (ppm) score (Scale 3) efficacy (%) (%) 0- 0 5.0 0.01000 - 0 5.0 0.0200 - 0 5.0 0.0100 - 0 5.0 0.0Maize oil 0- 10000 4.4 12.21000 - 10000 3.7 25.6 12.2 2.1 Synergism200 - 10000 3.8 24.4 12.2 2.0 Synergism100 - 10000 4.3 13.3 12.2 1.1 SynergismSoybean oil 0- 10000 4.0 20.010000 - 1000 4.0 20.0 8.9 2.3 Synergism200 - 1000 4.0 20.0 8.9 2.3 Synergism100 - 1000 4.2 15.6 8.9 1.8 SynergismExample 24: Effect of elemental sulfur on the herbicidal activity of rapeseed oil using bindweed leaflets. In this example, the products Cerasulfur® (Ceradis) comprising elemental sulfur in combination with rapeseed oil (Albert Heijn), were tested. The experiment was performed as described in example 14 with the exception that leaves from the bindweed plant (Calystegia pulchra) was used. These leaves were collected from a house garden. The treatments were scored 6 days after application according to scale 3. The treatments and results are presented in Table 23. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with rapeseed oil at ratios from 1:10 to 1:100 (w / w; elemental sulfur: rapeseed oil). Table 23. Herbicidal effect of elemental sulfur in combination with rapeseed oil tested on bindweed leaflets. Sulfur – Expected Avg herbicidal Observed Rapeseed oil efficacy O / E Interaction score (Scale 3) efficacy (%) (ppm) (%) 0- 0 5.0 0.01000 - 0 5.0 0.0200 - 0 5.0 0.0100 - 0 5.0 0.00 - 10000 4.1 17.81000 - 10000 3.8 23.3 17.8 1.3 Synergism200 - 10000 4.1 18.9 17.8 1.1 Synergism100 - 10000 3.8 23.3 17.8 1.3 SynergismExample 25: Effect of elemental sulfur on the herbicidal activity of limonene using tomato leaflets. In this example, the products Cerasulfur® (Ceradis) comprising elemental sulfur in combination with limonene, were tested. The experiment was performed as described in example 14, treatments were scored 3 days after application according to scale 3. The treatments and results are presented in Table 24. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with limonene at ratios from 5:1 to 1:1 (w / w; elemental sulfur: limonene). Table 24. Herbicidal effect of elemental sulfur in combination with limonene tested on bindweed leaflets. Avg Expected Sulfur – herbicidal Observed efficacy O / E Interaction Limonene (ppm) score (Scale efficacy (%) (%) 3) 0- 0 5.0 0.010000 - 0 5.0 0.00 - 10000 4.7 6.70 - 2000 5.0 0.010000 - 10000 3.7 26.7 6.7 4.0 Synergism10000 - 2000 4.8 5.0 0.0 - SynergismExample 26: Effect of elemental sulfur on the herbicidal activity of caprylic acid and thymol using tomato leaflets. In this example, the products Cerasulfur® (Ceradis) comprising elemental sulfur in combination with caprylic acid (Carl Roth) or in combination with thymol, were tested. The experiment was performed as described in example 14, treatments were scored 4 days after application according to scale 3. The treatments and results are presented in Table 25. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with caprylic acid or with thymol at ratios from 5:1 to 1:1 (w / w; elemental sulfur: caprylic acid or thymol). Table 25. Herbicidal effect of elemental sulfur in combination with caprylic acid or thymol tested on tomato leaflets. Avg Expected Sulfur – 2nd AI herbicidal Observed efficacy O / E Interaction (ppm) score (Scale efficacy (%) (%) 3) 0- 0 5.0 0.010000 - 0 5.0 0.0Caprylic acid 0- 10000 2.1 58.30 - 2000 4.6 8.310000 - 10000 0.7 86.7 58.3 1.5 Synergism10000 - 2000 3.8 23.3 8.3 2.8 SynergismThymol 0- 10000 1.7 66.70 - 2000 4.6 8.310000 - 10000 1.2 76.7 66.7 1.2 Synergism10000 - 2000 4.0 20.0 8.3 2.4 SynergismExample 27: Effect of elemental sulfur on the herbicidal activity of geraniol using tomato leaflets. In this example, the products Cerasulfur® (Ceradis) comprising elemental sulfur in combination with geraniol, were tested. The experiment was performed as described in example 14, treatments were scored 4 days after application according to scale 3. The treatments and results are presented in Table 26. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with geraniol at ratio 1:1 (w / w; elemental sulfur: geraniol). Table 26. Herbicidal effect of elemental sulfur in combination with geraniol tested on tomato leaflets. Avg Expected Sulfur – herbicidal Observed efficacy O / E Interaction Geraniol (ppm) score (Scale efficacy (%) (%) 3) 0- 0 5.0 0.010000 - 0 5.0 0.00 - 10000 1.3 73.310000 - 10000 1.0 80.0 73.3 1.1 SynergismExample 28: Effect of elemental sulfur on the herbicidal activity of carvacrol using tomato leaflets. In this example, the products Cerasulfur® (Ceradis) comprising elemental sulfur in combination with carvacrol, were tested. The experiment was performed as described in example 14, treatments were scored 2 days after application according to scale 3. The treatments and results are presented in Table 27. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with carvacrol from ratios 20:1 to 1:100 (w / w; elemental sulfur: carvacrol). Table 27. Herbicidal effect of elemental sulfur in combination with carvacrol tested on tomato leaflets. Sulfur – Expected Avg herbicidal Observed Carvacrol efficacy O / E Interaction score (Scale 3) efficacy (%) (ppm) (%) 0- 0 5.0 0.010000 - 0 5.0 0.01000 - 0 5.0 0.0200 - 0 5.0 0.0100 - 0 5.0 0.00 - 10000 3.6 27.80 - 2000 4.9 2.20 - 1000 4.9 1.10 - 500 5.0 0.010000 - 2000 4.0 20.0 2.2 9.0 Synergism10000 - 1000 4.0 20.0 1.1 18.0 Synergism10000 - 500 4.0 20.0 0.0 - Synergism1000 - 10000 3.2 36.7 27.8 1.3 Synergism200 - 10000 2.8 44.4 27.8 1.6 Synergism100 - 10000 3.5 30.0 27.8 1.1 SynergismExample 29: Effect of elemental sulfur on the herbicidal activity of 2,4-D and dicamba using tomato leaflets. In this example, the products Cerasulfur® (Ceradis) and Onkruid Weg! ® (Pokon) comprising the active ingredients elemental sulfur and 2,4-D and dicamba, were tested. The experiment was performed as described in example 14, treatments were scored 2 days after application according to scale 3. The treatments and results are presented in Table 28. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with 2,4-D from ratios 312:1to 1:1.6 (w / w; elemental sulfur: 2,4-D), and when combined with dicamba from ratios 1471:1 to 3:1 (Sulfur: dicamba). Table 28. Herbicidal effect of elemental sulfur in combination with 2,4-D and dicambatested on tomato leaflets. Avg Expected Sulfur – 2nd AI herbicidal Observed efficacy O / E Interaction (ppm) score efficacy (%) (%) (Scale 3) 0- 0 5.0 0.0100 - 0 5.0 0.0500 - 0 5.0 0.010 - 0 5.0 0.01- 0 5.0 0.02,4-D 0– 1.6 2.5 50.0100 – 1.6 1.9 61.1 50.0 1.2 Synergism500 – 1.6 2.0 60.0 50.0 1.2 Synergism10 – 1.6 2.0 60.0 50.0 1.2 Synergism1 – 1.6 1.9 61.1 50.0 1.2 Synergismdicamba 0– 0.34 2.5 50.0100 – 0.34 1.9 61.1 50.0 1.2 Synergism500 – 0.34 2.0 60.0 50.0 1.2 Synergism10 – 0.34 2.0 60.0 50.0 1.2 Synergism1 – 0.34 1.9 61.1 50.0 1.2 Synergism Example 30: Effect of elemental sulfur on the herbicidal activity of triallate using tomato leaflets. In this example, the products Cerasulfur® (Ceradis) and Far-go® (Gowan) comprising elemental sulfur and triallate, respectively, were tested. The experiment was performed as described in example 14, treatments were scored 2 days after application according to scale 3. The treatments and results are presented in Table 29. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with triallate from ratios 1:1 to 1:100 (w / w; elemental sulfur: triallate). Table 29. Herbicidal effect of elemental sulfur in combination with triallate tested on tomato leaflets. Avg Expected Sulfur – herbicidal Observed efficacy O / E Interaction Triallate (ppm) score (Scale efficacy (%) (%) 3) 0- 0 5.0 0.010000 - 0 5.0 0.01000 - 0 5.0 0.0200 - 0 5.0 0.0100 - 0 5.0 0.00 - 10000 4.2 15.610000 - 10000 4.0 20.0 15.6 1.3 Synergism1000 - 10000 4.0 20.0 15.6 1.3 Synergism200 - 10000 4.1 18.9 15.6 1.2 Synergism100 - 10000 4.2 16.7 15.6 1.1 SynergismExample 31: Effect of elemental sulfur on the herbicidal activity of capric acid using tomato leaflets. In this example, the product Cerasulfur® (Ceradis) comprising elemental sulfur and capric acid, were tested. The experiment was performed as described in example 14, treatments were scored 2 days after application according to scale 3. The treatments and results are presented in Table 30. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with capric acid from ratios 10:1 to 1:100 (w / w; elemental sulfur: capric acid). Table 30. Herbicidal effect of elemental sulfur in combination with capric acid tested on tomato leaflets. Sulfur – Expected Avg herbicidal Observed Capric acid efficacy O / E Interaction score (Scale 3) efficacy (%) (ppm) (%) 0- 0 5.0 0.010000 - 0 5.0 0.01000 - 0 5.0 0.0200 - 0 5.0 0.0100 - 0 5.0 0.00 - 10000 2.0 60.00 - 2000 3.4 31.10 - 1000 4.5 10.010000 - 2000 3.2 36.7 31.1 1.2 Synergism10000 - 1000 3.7 25.6 10.0 2.6 Synergism1000 - 10000 1.6 68.9 60.0 1.1 Synergism200 - 10000 1.7 66.7 60.0 1.1 Synergism100 - 10000 1.7 66.7 60.0 1.1 SynergismExample 32: Effect of elemental sulfur on the herbicidal activity of geraniol, citral, and glyphosate using tomato leaflets. In this example, the product Cerasulfur® (Ceradis) comprising elemental sulfur and geraniol, citral, and Roundup PowerFlex® (Bayer) comprising glyphosate, were tested. The experiment was performed as described in example 14, treatments were scored 8 days after application according to scale 3. The treatments and results are presented in Table 31. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with geraniol, citral, or glyphosate at ratios 5:1 (w / w; elemental sulfur: geraniol, or citral, or glyphosate). Table 31. Herbicidal effect of elemental sulfur in combination with limonene, or geraniol, or glyphosate tested on tomato leaflets. Avg Expected Sulfur – 2nd AI herbicidal Observed efficacy O / E Interaction (ppm) score (Scale efficacy (%) (%) 3) 0- 0 5.0 0.010000 - 0 5.0 0.0Geraniol 0 - 2000 3.7 25.610000 - 2000 3.4 32.2 25.6 1.3 SynergismCitral 0- 2000 4.3 14.410000 - 2000 3.7 25.6 14.4 1.8 SynergismGlyphosate 0- 2000 2.6 47.810000 - 2000 3.7 26.7 21.1 1.3 SynergismExample 33: Effect of elemental sulfur on the herbicidal activity of fennel oil using tomato leaflets. In this example, the product Cerasulfur® (Ceradis) comprising elemental sulfur and fennel oil, were tested. The experiment was performed as described in example 14, treatments were scored 3 days after application according to scale 3. The treatments and results are presented in Table 32. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with fennel oil at ratios from 10:1 to 1:1 (w / w; elemental sulfur: fennel oil). Table 32. Herbicidal effect of elemental sulfur in combination with fennel oil tested on tomato leaflets. Sulfur – Expected Avg herbicidal Observed fennel oil efficacy O / E Interaction score (Scale 3) efficacy (%) (ppm) (%) 0- 0 5.0 0.010000 - 0 5.0 0.00 - 10000 1.2 3.80 - 2000 0.0 5.00 - 1000 0.0 5.010000 - 10000 3.0 40.0 23.3 1.7 Synergism 10000 - 2000 4.9 2.2 0.0 - Synergism10000 - 1000 4.9 2.2 0.0 - SynergismExample 34: Effect of elemental sulfur on the herbicidal activity of triallate using tomato leaflets. In this example, the products Cerasulfur® (Ceradis) and Far-go® (Gowan) comprising elemental sulfur and triallate, respectively, were tested. The experiment was performed as described in example 14, treatments were scored 3 days after application according to scale 3. The treatments and results are presented in Table 33. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with triallate at ratios from 10:1 to 5:1 (w / w; elemental sulfur: triallate). Table 33. Herbicidal effect of elemental sulfur in combination with triallate tested on tomato leaflets. Sulfur – Expected Avg herbicidal Observed triallate efficacy O / E Interaction score (Scale 3) efficacy (%) (ppm) (%) 0- 0 5.0 0.010000 - 0 5.0 0.00 - 2000 4.5 10.00 - 1000 5.0 0.010000 - 2000 4.4 11.1 10.0 1.1 Synergism10000 - 1000 4.7 6.7 0.0 - SynergismExample 35: Effect of elemental sulfur on the herbicidal activity of cinnamon oil using tomato leaflets. In this example, the product Cerasulfur® (Ceradis) comprising elemental sulfur and cinnamon oil, were tested. The experiment was performed as described in example 14, treatments were scored 3 days after application according to scale 3. The treatments and results are presented in Table 34. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with cinnamon oil at ratio 5:1 (w / w; elemental sulfur: cinnamon oil). Table 34. Herbicidal effect of elemental sulfur in combination with cinnamon oil tested on tomato leaflets. Sulfur – Expected Avg herbicidal Observed cinnamon oil efficacy O / E Interaction score (Scale 3) efficacy (%) (ppm) (%) 0- 0 5.0 0.010000 - 0 5.0 0.00 - 2000 4.2 15.610000 - 2000 3.7 26.7 15.6 1.7 Synergism Example 36: Effect of elemental sulfur on the herbicidal activity of phenmedipham using tomato leaflets. In this example, the products Cerasulfur® (Ceradis) and Betasana® SC (UPL) comprising the active ingredients elemental sulfur and phenmedipham, respectively, were tested. The experiment was performed as described in example 14, treatments were scored 7 days after application according to scale 3. The treatments and results are presented in Table 35. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with phenmedipham at ratios from 10:1 to 5:1 (w / w; elemental sulfur: phenmedipham). Table 35. Herbicidal effect of elemental sulfur in combination with phenmedipham tested on tomato leaflets. Sulfur – Expected Avg herbicidal Observed Phenmedipham efficacy O / E Interaction score (Scale 3) efficacy (%) (ppm) (%) 0- 0 5.0 0.010000- 0 5.0 0.00 - 2000 4.1 18.90 - 1000 4.5 10.010000 - 2000 3.9 21.1 18.9 1.1 Synergism10000 - 1000 4.1 18.9 10.0 1.9 SynergismExample 37: Effect of elemental sulfur on the herbicidal activity of sulfentrazone or clomazone using tomato leaflets. In this example, the products Cerasulfur® (Ceradis), Blanket 4F (Tenkoz), and Reson® (UPL) comprising the active ingredients elemental sulfur, sulfentrazone, and clomazone, respectively, were tested. The experiment was performed as described in example 14, treatments were scored 7 days after application according to scale 3. The treatments and results are presented in Table 36. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with sulfentrazone, or clomazone at ratios from 5:1 to 1:100 (w / w; elemental sulfur: sulfentrazone, or clomazone). Table 36. Herbicidal effect of elemental sulfur in combination with sulfentrazone, or clamazone tested on tomato leaflets. Sulfur – 2ndAvg Observed Expected O / E Interaction AI (ppm) herbicidal efficacy (%) efficacy (%) score (Scale 3) 0- 0 5.0 0.010000 - 0 5.0 0.01000 - 0 5.0 0.0200 - 0 5.0 0.0100 - 0 5.0 0.0Sulfentrazone 0- 10000 2.4 52.20 - 20000 4.4 12.210000- 10000 2.1 57.8 52.2 1.1 Synergism10000 - 2000 3.9 22.2 12.2 1.8 Synergism1000 - 10000 1.2 76.7 52.2 1.5 Synergism200 - 10000 1.7 65.6 52.2 1.3 Synergism100 - 10000 1.6 68.9 52.2 1.3 SynergismClomazone 0- 10000 1.9 61.10 - 2000 4.8 4.410000 - 10000 1.8 64.4 61.1 1.1 Synergism10000 - 2000 3.5 30.0 4.4 6.8 Synergism1000 - 10000 0.3 93.3 61.1 1.5 Synergism200 - 10000 1.5 70.0 61.1 1.1 Synergism100 - 10000 1.2 76.7 61.1 1.3 SynergismExample 38: Effect of elemental sulfur on the herbicidal activity prosulfocarb using tomato leaflets. In this example, the products Cerasulfur® (Ceradis) and Boxer (Syngenta) comprising the active ingredients elemental sulfur and prosulfocarb, respectively, were tested. The experiment was performed as described in example 14, treatments were scored 7 days after application according to scale 3. The treatments and results are presented in Table 37. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with prosulfocarb at ratios from 20:1 to 1:100 (w / w; elemental sulfur: prosulfocarb). Table 37. Herbicidal effect of elemental sulfur in combination with prosulfocarb tested on tomato leaflets. Sulfur – Avg Observed Expected prosulfocarb O / E Interaction herbicidal efficacy (%) efficacy (%) AI (ppm) score (Scale 3) 0- 0 5.0 0.010000 - 0 5.0 0.0200 - 0 5.0 0.0100 - 0 5.0 0.00 - 10000 2.4 51.10 - 1000 4.6 7.80 - 500 4.8 4.410000- 1000 3.3 33.3 7.8 4.3 Synergism10000 - 500 3.7 26.7 4.4 6.0 Synergism200 - 10000 2.2 55.6 51.1 1.1 Synergism100 - 10000 2.0 60.0 51.1 1.2 SynergismExample 39: Effect of elemental sulfur on the herbicidal activity quizalofop ethyl using tomato leaflets. In this example, the products Cerasulfur® (Ceradis) and Targa® (Gowan) comprising the active ingredients elemental sulfur and quizalofop ethyl, respectively, were tested. The experiment was performed as described in example 14, treatments were scored 1 day after application according to scale 3. The treatments and results are presented in Table 38. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with quizalofop ethyl at ratios from 20:1 to 1:100 (w / w; elemental sulfur: quizalofop ethyl). Table 38. Herbicidal effect of elemental sulfur in combination with quizalofop ethyl tested on tomato leaflets. Avg Sulfur – herbicidal Observed Expected quizalofop O / E Interaction score efficacy (%) efficacy (%) ethyl (ppm) (Scale 3) 0- 0 5.0 0.010000 - 0 5.0 0.01000 - 0 5.0 0.0200 - 0 5.0 0.0100 - 0 5.0 0.00 - 10000 3.9 22.20 - 2000 4.3 14.40 - 1000 4.8 4.40 - 500 4.6 7.810000- 10000 3.8 24.4 22.2 1.1 Synergism10000- 2000 3.8 23.3 14.4 1.6 Synergism10000- 1000 4.0 20.0 4.4 4.5 Synergism10000 - 500 3.8 23.3 7.8 3.0 Synergism1000 - 10000 3.8 24.4 22.2 1.1 Synergism200 - 10000 3.8 24.4 22.2 1.1 Synergism100 - 10000 3.6 27.8 22.2 1.3 SynergismExample 40: Effect of elemental sulfur on the herbicidal activity pyraflufen ethyl using tomato leaflets. In this example, the products Cerasulfur® (Ceradis) and Vida® (Gowan) comprising the active ingredients elemental sulfur and pyraflufen ethyl, respectively, were tested. The experiment was performed as described in example 14, treatments were scored 1 day after application according to scale 3. The treatments and results are presented in Table 39. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with pyraflufen ethyl at ratios from 200:1 to 1:10 (w / w; elemental sulfur: pyraflufen ethyl). Table 39. Herbicidal effect of elemental sulfur in combination with pyraflufen ethyl tested on tomato leaflets. Avg Sulfur – herbicidal Observed Expected pyraflufen O / E Interaction ethyl (ppm) score efficacy (%) efficacy (%) (Scale 3) 0- 0 5.0 0.010000 - 0 5.0 0.01000 - 0 5.0 0.0200 - 0 5.0 0.0100 - 0 5.0 0.00 - 1000 3.8 24.40 - 200 4.2 16.70 - 100 4.6 8.90 - 50 4.9 2.210000- 1000 3.5 30.0 24.4 1.2 Synergism10000- 200 3.6 27.8 16.7 1.7 Synergism10000- 100 4.1 18.9 8.9 2.1 Synergism10000 - 50 4.2 15.6 2.2 7.0 Synergism1000 - 1000 3.1 37.8 24.4 1.5 Synergism200 - 1000 3.3 33.3 24.4 1.4 Synergism100 - 1000 3.3 34.4 24.4 1.4 SynergismExample 41: Effect of elemental sulfur on the herbicidal activity trifluralin using tomato leaflets. In this example, the products Cerasulfur® (Ceradis) and Treflan®HFP (Gowan) comprising the active ingredients elemental sulfur and trifluralin, respectively, were tested. The experiment was performed as described in example 14, treatments were scored 4 days after application according to scale 3. The treatments and results are presented in Table 40. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with trifluralin at ratios from 10:1 to 1:100 (w / w; elemental sulfur: trifluralin). Table 40. Herbicidal effect of elemental sulfur in combination with trifluralin tested on tomato leaflets. Avg Sulfur – herbicidal Observed Expected trifluralin AI O / E Interaction (ppm) score efficacy (%) efficacy (%) (Scale 3) 0- 0 5.0 0.010000 - 0 5.0 0.01000 - 0 5.0 0.0200 - 0 5.0 0.0100 - 0 5.0 0.00 - 10000 4.3 13.30 - 1000 4.8 4.410000- 1000 4.5 10.0 4.4 2.3 Synergism1000- 10000 4.2 15.6 13.3 1.2 Synergism200- 10000 4.3 14.4 13.3 1.1 Synergism100 - 10000 4.2 15.6 13.3 1.2 SynergismExample 42: Effect of elemental sulfur on the herbicidal activity benzo-bicyclon using tomato leaflets. In this example, the products Cerasulfur® (Ceradis) and Cliffhanger® (Gowan) comprising the active ingredients elemental sulfur and benzo-bicyclon, respectively, were tested. The experiment was performed as described in example 14, treatments were scored 5 days after application according to scale 3. The treatments and results are presented in Table 41. Results: It is concluded that elemental sulfur has no herbicidal effect but has a synergistic herbicidal effect when combined with benzo-bicyclon at ratios from 1:1 to 1:100 (w / w; elemental sulfur: benzo-bicyclon). Table 41. Herbicidal effect of elemental sulfur in combination with benzo-bicyclon tested on tomato leaflets. Sulfur – Avg benzo- herbicidal Observed Expected O / E Interaction bicyclon AI score efficacy (%) efficacy (%) (ppm) (Scale 3) 0- 0 5.0 0.010000 - 0 5.0 0.01000 - 0 5.0 0.0200 - 0 5.0 0.0100 - 0 5.0 0.00 - 10000 4.4 12.210000- 10000 3.8 23.3 12.2 1.9 Synergism1000- 10000 4.1 18.9 12.2 1.5 Synergism200- 10000 4.2 16.7 12.2 1.4 Synergism100 - 10000 4.2 15.6 12.2 1.3 Synergism

Claims

Claims 1. A composition comprising sulfur and a 2ndactive ingredient (ai) in a ratio of 5000:1 – 1:2000 (w / w; sulfur: 2ndai), preferably 1500:1 – 1:500 (w / w; sulfur: 2ndai) and, optionally, one or more surfactants, wherein the 2ndai is a herbicide selected from a classical herbicide, a fatty acid, an oil or a terpenic compound, wherein the classical herbicide is selected from glyphosate, 2,4-D (2,4- dichlorophenoxyacetic acid), dicamba, picloram, paraquat, diquat, glufosinate, flumioxazin, clomazone, sulfentrazone, bromoxynil, phenmediphan, triallate, prosulfocarb, bensulide, benzobicyclon, trifluralin, quizalofop-P-ethyl, quizalofop, pyraflufen, pyraflufen ethyl, benzo-bicylcon, ethalfluralin, halosulfuron-methyl, prosulfuron and citric acid,or any combination thereof; wherein the fatty acid is selected from an acetic acid, caprylic acid, a pelargonic acid, a capric acid, a lauric acid, a palmitic acid, an oleic acid, a linoleic acid, a linolenic acid, and a ricinoleic acid, or a salt thereof, or any combination thereof, wherein the 2ndai is not a choline salt of pelargonic acid; wherein the oil is selected from sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, sesame oil, grape seed oil, rice oil, coconut oil, castor oil, paraffinic oil, olefinic oil, thyme oil, oregano oil, lemongrass oil, citrus oil, clove oil, pine oil, cinnamon oil, eucalyptus oil, fennel oil, citronella oil, geranium oil, camphor oil or any combination thereof; and wherein the terpenic compound is selected from thymol, cavacrol, citral, limonene, eugenol, terpineol, pinene, cineol, citronellol, geraniol, linalool, camphor or any combination thereof.

2. The composition of claim 1, wherein the 2ndai is selected from glyphosate, 2,4-D, dicamba, clomazone, sulfentrazone, phenmediphan, triallate, prosulfocarb, trifluralin, quizalofop-ethyl, pyraflufen ethyl, benzo-bicylcon, an acetic acid, a citric acid, caprylic acid, a pelargonic acid, a capric acid, sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, grape seed oil, rice oil, paraffinic oil, thyme oil, clove oil, cinnamon oil, fennel oil, thymol, cavacrol, citral, limonene, geraniol, or any combination thereof.

3. The composition of claim 1 or claim 2, further comprising at least one antifoaming agent, at least one thickening agent, at least one stabilizing agent, glycerol, or any combinations thereof.

4. The composition of any one of claims 1-3, further comprising a 3rdactive ingredient (ai) in a ratio of 500:1:1 – 1:500:500 (w / w; sulfur: 2ndai: 3rdai), preferably 100:1:1 – 1:100:100 (w / w; sulfur: 2ndai:3rdai), preferably wherein the 2ndai is a fatty acid and the 3rdai is an oil or terpenic compound, most preferably the 3rdai is an oil.

5. A method for controlling weed growth, comprising providing sulfur and a 2ndactive ingredient (ai), in a ratio of 5000:1 – 1:2000 (w / w; sulfur: 2ndai), preferably 1500:1 – 1:500 (w / w; sulfur: 2ndai) to said weed, weed part, a crop and / or a soil, wherein the 2ndai is a herbicide selected from a classical herbicide, a fatty acid, an oil or a terpenic compound, wherein the classical herbicide is selected from selected from glyphosate, 2,4-D (2,4-dichlorophenoxyacetic acid), dicamba, picloram, paraquat, diquat, glufosinate, flumioxazin, clomazone, sulfentrazone, bromoxynil, phenmediphan, triallate, prosulfocarb, bensulide, benzobicyclon, trifluralin, quizalofop-ethylpyraflufen ethyl, benzo-bicylcon, ethalfluralin, halosulfuron-methyl, prosulfuron and citric acid or any combination thereof; wherein the fatty acid is selected from an acetic acid, caprylic acid, a pelargonic acid, a capric acid, a lauric acid, a palmitic acid, a oleic acid, a linoleic acid, a linolenic acid, and a ricinoleic acid, or a salt thereof, or any combination thereof; wherein the 2ndai is not a choline salt of pelargonic acid; wherein the oil is selected from sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, sesame oil, grape seed oil, rice oil, coconut oil, castor oil, paraffinic oil, olefinic oil, thyme oil, oregano oil, lemongrass oil, citrus oil, clove oil, pine oil, cinnamon oil, eucalyptus oil, fennel oil, citronella oil, geranium oil, camphor oil or any combination thereof; and wherein the terpenic compound is selected from thymol, cavacrol, citral, limonene, eugenol, terpineol, pinene, cineol, citronellol, geraniol, linalool, camphor, or any combination thereof.

6. The method according to claim 5, wherein the 2ndai is selected from glyphosate, 2,4-D, dicamba, clomazone, sulfentrazone, phenmediphan, triallate, prosulfocarb, trifluralin, quizalofop ethyl, pyraflufen ethyl, benzo-bicylcon, a citric acid, an acetic acid, caprylic acid, a pelargonic acid, a capric acid sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, grape seed oil, rice oil, paraffinic oil, thyme oil, clove oil, cinnamon oil, fennel oil, thymol, cavacrol, citral, limonene, geraniol, or any combination thereof.

7. The method according to any one of claims 5-6, whereby said sulfur and 2ndactive ingredient (ai) are provided sequentially to the weed, weed part, crop and / or soil.

8. The method according to any one of claims 5-7, wherein the 2ndactive ingredient (ai) is provided between 2 days and 1 month, such as about 14 days, after the application of the elemental sulfur to the weed, weed part, crop and / or soil.

9. The method according to any one of claims 5-7, wherein the sulfur is provided between 2 days and 1 month, such as about 14 days, after the application of the 2ndai to the weed, weed part, crop and / or soil.

10. The method according to any one of claims 5-6, whereby said sulfur and 2ndai are provided by a composition of any one of claims 1-3.

11. The method according to any one of claims 5-10, further comprising providing a 3rdactive ingredient (ai) in a ratio of 500:1:1 – 1:500:500 (w / w; sulfur: 2ndai: 3rdai), preferably 100:1:1 – 1:100:100 (w / w; sulfur: 2ndai:3rdai) to said weed, weed part, a crop and / or a soil, preferably whereby said sulfur, 2ndai and 3rdai are provided by a composition of any one of claims 4-5.

12. A method for controlling, preventing and / or eliminating the presence of a sucker or runner, comprising contacting said sucker or runner, or part of said sucker or runner, with sulfur and a 2ndactive ingredient (ai), in a ratio of 5000:1 – 1:2000 (w / w; sulfur: 2ndai), preferably 1500:1 – 1:500 (w / w; sulfur: 2ndai), andoptionally a 3rdactive ingredient (ai) in a ratio of 500:1:1 – 1:500:500 (w / w; sulfur: 2ndai: 3rdai), preferably 100:1:1 – 1:100:100 (w / w; sulfur: 2ndai:3rdai), to said sucker or runner, or part of said sucker or runner, wherein the 2ndai is a herbicide selected from a classical herbicide, a fatty acid, an oil or a terpenic compound, wherein the classical herbicide is selected from selected from glyphosate, 2,4-D (2,4-dichlorophenoxyacetic acid), dicamba, dicloram, paraquat, diquat, glufosinate, flumioxazin, clomazone, sulfentrazone, bromoxynil, phenmediphan, triallate, prosulfocarb, bensulide, benzobicyclon, trifluralin, quizalofop ethyl, pyraflufen ethyl, benzo-bicyclon, ethalfluralin, halosulfuron-methyl, prosulfuron and citric acid, or any combination thereof; wherein the fatty acid is selected from an acetic acid, caprylic acid, a pelargonic acid, a capric acid, a lauric acid, a palmitic acid, a oleic acid, a linoleic acid, a linolenic acid, and a ricinoleic acid, or a salt thereof, or any combination thereof; wherein the oil is selected from sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, sesame oil, grape seed oil, rice oil, coconut oil, castor oil, paraffinic oil, olefinic oil, thyme oil, oregano oil, lemongrass oil, citrus oil, clove oil, pine oil, cinnamon oil, eucalyptus oil, fennel oil, citronella oil, geranium oil, camphor oil or any combination thereof; and wherein the terpenic compound is selected from thymol, cavacrol, citral, limonene, eugenol, terpineol, pinene, cineol, citronellol, geraniol, linalool, camphor or any combination thereof.

13. The method according to claim 12, wherein the 2ndai is selected from glyphosate, 2,4-D, dicamba, clomazone, sulfentrazone, phenmediphan, triallate, prosulfocarb, trifluralin, quizalofop-ethyl, pyraflufen ethyl, benzo-bicyclon, a citric acid, an acetic acid, caprylic acid, a pelargonic acid, a capric acid sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, grape seed oil, rice oil, paraffinic oil, thyme oil, clove oil, cinnamon oil, fennel oil, thymol, cavacrol, citral, limonene, geraniol, or any combination thereof.

14. A method for accelerating the desiccation, death, and / or defoliation of leaf, comprising contacting said leaf, plant, and / or plant part, with sulfur and a 2ndactive ingredient (ai), in a ratio of 5000:1 – 1:2000 (w / w; sulfur: 2ndai), preferably1500:1 – 1:500 (w / w; sulfur: 2ndai),) and optionally a 3rdactive ingredient (ai) in a ratio of 500:1:1 – 1:500:500 (w / w; sulfur: 2ndai: 3rdai), preferably 100:1:1 – 1:100:100 (w / w; sulfur: 2ndai:3rdai), wherein the 2ndai is a herbicide selected from a classical herbicide, a fatty acid, an oil or a terpenic compound, wherein the classical herbicide is selected from selected from glyphosate, 2,4-D (2,4-dichlorophenoxyacetic acid), dicamba, picloram, paraquat, diquat, glufosinate, flumioxazin, clomazone, sulfentrazone, bromoxynil, phenmediphan, triallate, prosulfocarb, bensulide, benzobicyclon, trifluralin, quizalofop-ethyl, pyraflufen ethyl, benzo-bicyclon,ethalfluralin, halosulfuron-methyl, prosulfuron and citric acid, or any combination thereof; wherein the fatty acid is selected from an acetic acid, caprylic acid, a pelargonic acid, a capric acid, a lauric acid, a palmitic acid, an oleic acid, a linoleic acid, a linolenic acid, and a ricinoleic acid, or a salt thereof, or any combination thereof; wherein the oil is selected from sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, sesame oil, grape seed oil, rice oil, coconut oil, castor oil, paraffinic oil, olefinic oil, thyme oil, oregano oil, lemongrass oil, citrus oil, clove oil, pine oil, cinnamon oil, eucalyptus oil, fennel oil, citronella oil, geranium oil, camphor oil or any combination thereof; and wherein the terpenic compound is selected from thymol, cavacrol, citral, limonene, eugenol, terpineol, pinene, cineol, citronellol, geraniol, linalool, camphor or any combination thereof.

15. Use of sulfur for enhancing the activity of a 2ndactive ingredient (ai), and optionally 3rdai, against a weed such as palmer amaranth, dandelion, black nightshade, thistle, clover, lamsquarters, grasses, chickweed, crabgrass, annual bluegrass, ryegrass, foxtail amaranth, common purslane, moss or algae, wherein the 2ndai is a classical herbicide, a fatty acid, an oil or a terpenic compound and wherein the optional 3rdai is a classical herbicide, a fatty acid, an oil or a terpenic compound, wherein the classical herbicide is selected from selected from glyphosate, 2,4-D (2,4-dichlorophenoxyacetic acid), dicamba, picloram, paraquat, diquat, glufosinate, flumioxazin, clomazone, sulfentrazone, bromoxynil, phenmediphan, triallate, prosulfocarb, bensulide, benzobicyclon, trifluralin, quizalofop-ethyl, pyraflufenethyl, benzo-bicyclon,ethalfluralin, halosulfuron-methyl, prosulfuron and citric acid, or any combination thereof; wherein the fatty acid is selected from an acetic acid, caprylic acid, a pelargonic acid, a capric acid, a lauric acid, a palmitic acid, an oleic acid, a linoleic acid, a linolenic acid, and a ricinoleic acid, or a salt thereof, or any combination thereof; wherein the oil is selected from sunflower oil, maize oil, soybean oil, rapeseed oil, linseed oil, olive oil, peanut oil, sesame oil, grape seed oil, rice oil, coconut oil, castor oil, paraffinic oil, olefinic oil, thyme oil, oregano oil, lemongrass oil, citrus oil, clove oil, pine oil, cinnamon oil, eucalyptus oil, fennel oil, citronella oil, geranium oil, camphor oil or any combination thereof; and wherein the terpenic compound is selected from thymol, cavacrol, citral, limonene, eugenol, terpineol, pinene, cineol, citronellol, geraniol, linalool, camphor or any combination thereof.

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