156 results about "Grass weed" patented technology

Penoxsulam and oxyfluorfen synergistically control weeds in crops, especially perennial tree and vine crops, rice, cereal and grain crops, pastures, rangelands, IVM and turf. Such compositions provide improved pre-emergence residual and post-emergence burndown with residual herbicidal weed control.

The invention provides a cassava field herbicide composition which is a ternary herbicide composition with active components of halosulfuron, oxyfluorfen, and an amide herbicide. The composition comprises the components of, by weight: 1-9% of halosulfuron, 2-16% of oxyfluorfen, 24-75% of the amide herbicide, 7-42% of a solvent, and 7-27% of an auxiliary agent. The amide herbicide is one of butachlor, propisochlor, and fine metolachlor. The herbicide composition provided by the invention has significant synergetic effect and wide herbicidal spectrum, and has significant soil enclosing effect against broad leaf weeds, grass weeds, and cperaceae weeds. Especially, a soil enclosing effect against cyperi rhizome is significant. The composition has low harm to cassava, low toxicity, and low residue. With one-time dosage, weed harm of an entire duration period can be controlled.

The invention discloses a weed controlling compound pesticide composition. The pesticide composition contains such active ingredients as fluroxypyr or esters thereof and topramezone, wherein the weight ratio of fluroxypyr or esters thereof to topramezone is 15: (1-3). The pesticide composition is characterized in that the dosage form of the pesticide composition is wettable powder or water dispersible granules; based on the total weight of the composition, the content of fluroxypyr or esters thereof is 10-70%, the content of topramezone is 2-30% and the content of additives is 10-88%; and theamount of the esters of fluroxypyr is converted into the amount of fluroxypyr. The invention also discloses a preparation method of the wettable powder or water dispersible granules. The pesticide composition is formed by compounding fluroxypyr or esters thereof and topramezone, has low toxicity, wide weed control spectrum, quick effect, good persistence and medium cost, can control broadleaf weeds, annual grass weeds and the like, is a more ideal pesticide variety for controlling weeds in the maize fields and has the advantages of simpleness in production, convenience and safety in use, zeroenvironmental pollution and the like.

The invention relates to a herbicide composition, which contains the following active ingredients in part by weight: 0.1 to 33 parts of penoxsulam and 0.1 to 99 parts of metamifop. The invention also relates to application of the herbicide composition in preventing and controlling annual and perennial broadleaf weeds and grass weeds in paddy fields. Compared with single agent, the herbicide composition has the advantages that weeding effect is remarkably improved, extremely good synergy is shown, the using amount of agents, influence on the environment, and the agent cost of peasants are reduced; and meanwhile, the herbicide composition enlarges the weeding spectrum and can effectively delay the occurrence and development of single agent resistance.

A herbicidal composition, the mass ratio of the active ingredients thionsulfuron-methyl and the refined metolachlor in the herbicidal composition is 1-50:50-1, and the active ingredients thionsulfuron-methyl and refined metolachlor in the preparation The total mass of amines in the formulation accounts for 1% to 80% of the mass of the entire formulation, and the rest are auxiliary components that are allowed to be used and accepted in pesticides. The formulations of the herbicidal composition are emulsifiable concentrate, suspension concentrate, wettable powder, water dispersion Granules, aqueous emulsions, microemulsions, granules, microcapsules. It is mainly used to control broad-leaved weeds, annual grass weeds and some dicotyledonous weeds in crops.

The invention provides a herbicidal composition comprising a mixture of: (a) polymeric microparticles containing a first herbicide, wherein the first herbicide is a synthetic auxin herbicide (e.g. dicamba, MCPA or 2,4-D) or an acetolactate synthase (ALS) inhibitor herbicide (e.g. triasulfuron, tribenuron-methyl, iodosulfuron-methyl, mesosulfuron-methyl, sulfosulfuron, flupyrsulfuron-methyl, or pyroxsulam); wherein the first herbicide, when in a salt-free form and when not contained within polymeric microparticles, antagonises the herbicidal activity of pinoxaden; and (b) pinoxaden; wherein the polymeric microparticles are controlled-release matrices, within which is the first herbicide, and which function in such a way as to control and/or slow down the release of the first herbicide from the polymeric microparticles into a liquid (e.g. aqueous) medium when the polymeric microparticles are placed (e.g. dispersed) in and in contact with the liquid medium. The containing of the first herbicide within the controlled-release polymeric microparticles is thought to mitigate the antagonism of the grass-weed-herbicidal activity of pinoxaden which might otherwise be caused by the first herbicide depending on the circumstances. The invention also provides a method of reducing the antagonistic effect on the control of monocotyledonous weeds in non-oat cereals which is shown by a herbicidal mixture of either a synthetic auxin herbicide with pinoxadenor an ALS inhibitor herbicide with pinoxaden, which comprises applying a herbicidal composition according to the invention. The invention also provides a herbicidal composition comprising (a) polymeric microparticles (e.g. controlled-release matrices), containing a first herbicide as defined above, and either (x) a nonionic surfactant or (y) a surface-modified clay, as defined herein.

The use of a bacterial secondary metabolite, thaxtomin is described as an effective herbicide on broadleaved, sedge and grass weeds, e.g., in rice fields with no phytotoxicity to rice as well as on aquatic based weeds.

The invention discloses a herbicidal composition containing fluazifop-p-butyl and clethodim and application thereof. The herbicidal composition takes fluazifop-p-butyl and clethodim as the main active ingredients, wherein the mass ratio of fluazifop-p-butyl to clethodim is (1-70):(1-80) and fluazifop-p-butyl and clethodim account for 5-85% of the herbicidal composition by mass. The herbicidal composition has obvious effect on preparing the herbicides for controlling the postemergence weeds in the soybean fields, especially the herbicides for controlling various grass weeds in the soybean fields. Compared with the single agent, the herbicidal composition delays weed resistance, has wide herbicidal spectrum and long efficacy duration and does no harm to the rapes and the aftercrops on the premise of improving the drug effect.

The invention belongs to the improved herbicide compositions and provides a preparation method and application. The invention is a mixture of a compound (A) and fenoxaprop-p-ethyl and can effectively control annual grass weeds and broadleaf weeds in the wheat fields. The control effects of the invention are remarkably better than the control effects of the single compound (A) or a compound (B), and the application dosages of various active substances are substantially reduced.

The invention relates to the field of pesticide preparations and discloses a wheat field herbicide composition. The herbicide composition is prepared from mesosulfuron methyl and dicamba in a mass ratio of 1:(5-30). The invention also discloses a herbicide prepared from the herbicide composition and auxiliary materials which can be accepted by pesticide preparations, wherein the herbicide composition accounts for 1-90% of the herbicide by weight. The herbicide composition and the preparation thereof have the following beneficial effects: the mesosulfuron methyl and the dicamba are compounded to be used as active ingredients, have complementary advantages, delay the drug resistance of weeds, reduce the environmental pollution and simultaneously improve the drug effects; grass weeds and broadleaf weeds can be effectively controlled through drug administration once, thus reducing the using amount as well as the using types and frequencies of the pesticide; and the herbicide composition and the preparation thereof can be widely applied in the agricultural field.

The invention provides special weedicide for bletilla striata and application of the special weedicide and belongs to the field of plant cultivation. The weedicide is prepared from an effective component and an auxiliary agent, wherein the content of the effective component accounts for 55 percent to 65 percent of the total amount of the weedicide and the pH (Potential of Hydrogen) value of the weedicide is 5.5 to 6.5; the effective component is prepared from the following components in parts by weight: 18 to 24 parts of jatrorrhizine, 15 to 20 parts of palmatine, 6 to 8 parts of benzothiazooxadiazon, and 6 to 8 parts of flucetosulfuron. The weedicide provided by the invention can be used for effectively preventing and removing almost annual grass weeds, broadleaf weeds and the like in bletilla striata fields, has the advantages of wide weeding spectrum and good prevention and treatment effect and is relatively moderate to bletilla striata plants; when the weeds are removed, normal growth of the bletilla striata plants is not influenced. When the weedicide is used for removing the weeds of the bletilla striata fields, the weeding effect is good and no phytotoxicity on the bletilla striata plants is caused; meanwhile, active components of the weedicide are natural small molecule compounds so that pesticide residues and environment pollution are not caused.

An synergistic herbicidal composition containing penoxsulam plus triclopyr and imazethapyr or imazamox for controlling weeds in crops, especially rice, cereal and grain crops, pastures, rangelands, industrial vegetation management (IVM), aquatics and turf. These compositions provide improved post-emergence herbicidal weed control.

The invention discloses a herbicidal composition containing rimsulfuron-methyl and oxafluzone, which contains active components rimsulfuron-methyl and oxaflumezone in a mass ratio of 1:50-60:1. The control effect of the herbicidal composition of the present invention is higher than that of the components rimsulfuron-methyl and oxaflumezone when applied alone, has obvious synergistic effect, greatly reduces the dosage of active ingredients, and is safe for crops. At the same time, the herbicidal spectrum has been expanded, and it has a good control effect on grass weeds and broad-leaved weeds such as crabgrass, goosegrass, foxtail, and lily in corn fields.

The present invention discloses a pesticide composition containing picloram or picloram salt, and application of the pesticide composition containing the picloram or the picloram salt. The pesticide composition comprises effective ingredients of a component I and a composition II, wherein the component I is the picloram or the picloram salt; the composition II comprises tribenuron-methyl, bensulfuron methyl, thifensulfuron methyl, bispyribac-sodium or thiencarbazone-methyl; the mass ratio of the component I to the composition II is (1:50)-(25:1). The present invention also discloses a preparation prepared from the pesticide composition and suitable for being used in agriculture, and application of the preparation in preventing and killing of broadleaf weeds in wheat fields. The pesticide composition containing the picloram or the picloram salt has an obvious synergistic effect, reduces use amount of pesticides, the use times of the pesticides, the use cost of the pesticides, and adverse effects of the pesticides on ecological environments, enlarges weeding range, can solve a problem of various broadleaf weeds by one-time pesticide applying, makes up for defects and limitation caused by use of single agents, prolongs the service life of agents, and has important significance on comprehensive treatment of weed resistance; and the pesticide composition is fast in effect acting, long in effect period, and low in use cost, and has wide development and popularization prospects.

The invention belongs to the technical field of pesticides, and discloses an herbicidal composition, which uses oxaziclomefone, penoxsulam, and clomazone as main active ingredients, wherein the mass ratio of oxaziclomefone to penoxsulam to clomazone is (0.1 to 20) to (0.1 to 15) to (0.1 to 50), and the sum of the three is 1 to 80% by mass in the herbicidal composition. The invention also discloses a water dispersible granule, a wettable powder, a suspending agent, an emulsifiable concentrate and a granule prepared by the herbicidal composition, has the advantages of high efficiency, low toxicity, low cost, quick effect and long duration, and can be used for controlling annual grass weeds, broadleaf weeds and cyperaceae weeds of a rice paddy field.

The invention provides a weedicide composition containing clodinafop-propargyl, belonging to the improved weedicide compositions. The invention also provides a preparation method and application of the composition. The composition is a mixture of a compound (A) and bensulfuron-methyl and can effectively prevent and kill off the annual grass weeds and broadleaf weeds in the cornfields. The controleffect of the composition is obviously better than that of the single compound (A) or compound (B), thus substantially reducing the application dosage of various active substances.

The invention discloses a herbicide composition and application thereof and relates to the technical field of pesticide compounding. The herbicide composition is prepared from the following effective components including a component A and a component B, wherein A is fazasulfuron or a salt thereof, B is at least one of fenoxaprop-p-ethyl and metamifop, and the weight ratio of the component A to the component B is (50-1) to (1-50). The herbicide composition has four characteristics that 1, the herbicide composition is capable of effectively lowering the application rate of each single dose and delaying the drug resistance of a plant and is fast in quick action and long in persistent period; 2, the herbicide composition is capable of efficiently controlling and eliminating elder broadleaf weeds, sedges and grass weeds with the number of leaf less than 7 and has the synergistic interaction; 3, the herbicide composition is capable of expanding a weed control spectrum; 4, the herbicide composition is highly safe to lawns.

The invention belongs to the technical field of pesticides and discloses a weeding composite. The weeding composite is characterized by containing two active ingredients, namely fluorine ketone sulfone napropamide and quinclorac. The composite is used for controlling annual grass weeds and broadleaf weed in paddy field, and is obvious in synergistic effect, wide in weed control spectrum, safe to rice and long lasting.

The present invention relates to a compounded herbicide for wheat fields. The compounded herbicide contains 1 part to 99 parts of clodinafop-propargyl and 1 part to 99 parts of florasulam+flumetsulam, and also contains an optional carrier, a surfactant, a dispersant, and agricultural adjuvants. The compounded herbicide for wheat fields solves the problem of single effect in existing herbicides for wheat fields, and has both soil treatment and stem and leaf treatment effects. The compounded herbicide can control both grass weeds in wheat fields and broadleaf weeds and sedges; and is safe to wheat has no impact to after-reap crops; so the herbicidal effect is improved, crop injury is reduced, the occurrence of herbicide resistance of weeds and community succession are delayed, the dosage and environmental pollution are decreased, and at the same time, labor and money are save, thereby reducing the burden on farmers.