Aqueous pesticide composition containing natural rubber

Abstract

The present invention addresses the problem of providing an aqueous pesticide composition containing natural rubber and having an exceptional pesticide activity effect. The present invention relates to an aqueous pesticide composition characterized by comprising an aqueous pesticide component, a surfactant, natural rubber, and water, the weight ratio of the aqueous pesticide component to the natural rubber being 100:1 to 1:2.

Description

Aqueous pesticide composition containing natural rubber

[0001] The present invention relates to an agricultural chemical composition. More specifically, the present invention relates to an aqueous agricultural chemical composition containing natural rubber, and further to an aqueous agricultural chemical composition for seed treatment.

[0002] In recent years, environmental problems caused by microplastics have arisen, and efforts to achieve the Sustainable Development Goals (SDGs) (commonly known as the Global Goals) are being called for. This calls for the development of environmentally friendly pesticide formulations (pesticide compositions) that use natural materials.

[0003] The pesticide formulation may contain a binder as a material, and various binders have been reported so far (see, for example, Patent Document 1).

[0004] Among these, for example, in the case of aqueous pesticide compositions for seed treatment, there is a problem that the aqueous pesticide composition used for seed treatment or the like peels off from the seeds at the time of sowing due to the binder used, making it difficult to handle and preventing the pesticide activity from being fully exerted, and therefore there is a need to improve dustiness.In addition, there is a problem that the pesticide active ingredient is washed out by contact with water such as rainfall or watering, preventing the pesticide activity from being fully exerted, and therefore there is a need to improve water resistance.

[0005] Therefore, there is a demand for an environmentally friendly pesticide composition that uses natural materials and has improved peelability from seeds and water resistance.

[0006] JP 2012-184209 A

[0007] An object of the present invention is to provide an environmentally friendly aqueous pesticide composition that meets social challenges, has improved peelability from seeds and water resistance, and has excellent handleability and pesticide activity.

[0008] As a result of further investigations, the present inventors discovered that the above-mentioned problems could be solved by incorporating a certain amount of natural rubber as a binder, leading to the completion of the present invention. Specifically, the present invention is as follows: [1] An aqueous pesticide composition comprising a pesticidal active ingredient, a surfactant, natural rubber, and water, wherein the weight ratio of the pesticidal active ingredient to the natural rubber is 100:1 to 1:2 (hereinafter, this may be referred to as the "aqueous pesticidal composition of the present invention" or "composition of the present invention"). [2] The aqueous pesticidal composition according to [1], wherein the pesticidal active ingredient is a pesticidal active ingredient that is solid at 25°C. [3] The aqueous pesticidal composition according to either [1] or [2], wherein the pesticidal active ingredient is a pesticidal active ingredient that has a melting point of 80°C or higher. [4] The aqueous pesticide composition according to any one of [1] to [3], wherein the pesticidal active ingredient is at least one selected from the group consisting of clothianidin, impirfluxam, oxazosulfil, mandestrobin, and ethaboxam. [5] The aqueous pesticide composition according to any one of [1] to [4], wherein the weight ratio of the pesticidal active ingredient to the natural rubber is from 100:1 to 5:2. [6] The aqueous pesticide composition according to any one of [1] to [5], wherein the pesticidal active ingredient and the natural rubber are contained in an amount of 10 to 60% by weight and 0.3 to 30% by weight, respectively, based on the weight of the aqueous pesticide composition. [7] The aqueous pesticide composition according to any one of [1] to [6], wherein the aqueous pesticide composition is an aqueous suspension concentrate pesticide composition. [8] The aqueous pesticide composition according to any one of [1] to [7], wherein the aqueous pesticide composition is used for seed treatment. [9] A method for controlling pests, comprising treating plant seeds with the aqueous pesticidal composition according to any one of [1] to [8].

[10] A method for producing the aqueous pesticidal composition according to any one of [1] to [8], comprising a step of adding natural rubber to a dispersion of the pesticidal active ingredient, a surfactant, and water, in which the pesticidal active ingredient is emulsified or suspended.

[11] Seeds that have been treated with the aqueous pesticidal composition according to any one of [1] to [8], and in which the pesticidal active ingredient, surfactant, and natural rubber are retained (hereinafter, may be referred to as "treated seeds of the present invention").

[12] A method for producing seeds retaining a pesticidal active ingredient, a surfactant, and natural rubber, comprising a step of treating the seeds with the aqueous pesticidal composition according to any one of [1] to [8].

[13] Use of natural rubber for producing the aqueous pesticidal composition according to any one of [1] to [8] for pest control.

[14] Use of the aqueous pesticidal composition according to any one of [1] to [8] for pest control.

[0009] Since the composition of the present invention uses natural rubber, a natural material, it is expected to contribute to solving social issues as an environmentally friendly composition. Furthermore, the composition of the present invention is inhibited from peeling from seeds, thereby improving handleability. Furthermore, the composition of the present invention is rain-resistant, meaning that the pesticidal active ingredient is less likely to be washed out of seeds by rainfall or watering after application to seeds or seed spraying and during germination. Therefore, the pesticidal activity of the composition can be fully exerted without being significantly affected by rainfall or watering.

[0010] The "pesticidally active ingredient" used in the present invention includes, for example, active ingredients used in the cultivation of agricultural crops to control pests, plant diseases, weeds, and plant growth. The composition of the present invention contains one or more pesticidal active ingredients. Examples of such pesticidal active ingredients include insecticidal active ingredients, acaricidal active ingredients, nematicidal active ingredients, fungicidal active ingredients, herbicidal active ingredients, and plant growth regulator active ingredients. In particular, insecticidal active ingredients, acaricidal active ingredients, nematicidal active ingredients, fungicidal active ingredients, and plant growth regulator active ingredients are preferred.

[0011] From the viewpoint of ease of handling during production, the pesticidal active ingredient used in the present invention is preferably a pesticidal active ingredient that is solid at 25°C.

[0012] From the viewpoint of further improving the handleability during production, the pesticidal active ingredient of the present invention is more preferably a pesticidal active ingredient having a melting point of 80° C. or higher. Examples of such pesticidal active ingredients having a melting point of 80° C. or higher include the following:

[0013] As the insecticidal active ingredient, acaricidal active ingredient, or nematicidal active ingredient having a melting point of 80°C or higher, for example, the following ingredients may be appropriately selected: deltamethrin, tralomethrin, acrinathrin, propoxur, isoprocarb, thiodicarb, XMC, carbaryl, pirimicarb, carbofuran, acephate, trichlorfon, tetrachlorvinphos, diflubenzuron, chlorfluazuron, lufenuron, hexaflumuron, flufenoxuron, flucycloxuron, cyromazine, diafenthiuron, hexythiazox, novaluron, and teflubenzuron. , triflumuron, imidacloprid, acetamiprid, clothianidin, nitenpyram, thiamethoxam, dinotefuran, thiacloprid, spinosad, flubendiamide, chlorantraniliprole, cyantraniliprole, tetraniliprole, cyclaniliprole, fipronil, ethiprole, spirotetramat, spiromesifen, spirodiclofen, spiropydione, triflumezopyrim, sulfoxaflo le, abamectin, emamectin benzoate, lepimectin, milbemectin, pymetrozine, pyrifluquinazone, clofentezine, hexythiazox, etoxazole, chlorfenapyr, cartap, thiocyclam, bensultap, buprofezin, chromafenozide, methoxyfenozide, tebufenozide, amitraz, fluacrypyrim, bifenazate, fenpyroximate, pyridaben, tolfenpyra d, indoxacarb, oxazosulfil, metaflumizone, cyenopyrafen, piflubumid, flonicamid, broflanilide, fluxametamide, flupirimine, flometoquin, benzpyrimoxane, hydramethylnon, sulfluramide, boric acid, beta-cyfluthrin, thioxazafen, afidopiropen, fluazaindolizine, fluopyram, isocycloceram, ginpropylpiridaz, and cyclobutrifluram.

[0014] As the fungicidal active ingredient having a melting point of 80°C or higher, for example, the following ingredients may be appropriately selected: inpirfluxam, fenpyrazamine, mandestrobin, benomyl, carbendazim, thiabendazole, thiophanate methyl, diethofencarb, procymidone, iprodione, vinclozolin, diniconazole, epoxiconazole, tebuconazole, difenoconazole, cyproconazole, triadimefon, furametpyr, mepronil, flutolanil, thifluzamide, and fosetyl Aluminum, pyrimethanil, mepanipyrim, fludioxonil, fenpiclonil, blasticidin S, kasugamycin, polyoxin, validamycin, azoxystrobin, kresoxim-methyl, metominostrobin, chlorothalonil, mancozeb, captan, folpet, tricyclazole, pyroquilon, probenazole, fthalide, cymoxanil, dimethomorph, famoxadone, oxolinic acid, fluazinam, ferimzone, diclocymet, orysastrobin, isotianil, tiadinil, thiuram, fluoxastrobin, fenamidon, pyribencarb, fenbuconazole, hexacona azole, imibenconazole, ipconazole, metconazole, simeconazole, hydroxyisoxazole, pencycuron, fluopicolide, pyriophenone, isofetamide, fluopyram, thifluzamide, fluxapyroxad, isopyrazam, penflufen, penthiopyrad, boscalid, pyraziflumide, cyazofamid, amisulbrom, ametoctrazine, mepanipyrim, oxathiapiproline, triforine, fenarimol, oxpoconazole fumarate, fenhexamid, pyributicarb, benthiavalicarb isopropyl, mandipropamid, tolprocarb, acibenzolar-S-methyl, fosetylAluminum, flusulfamide, fluthianil, diclobenthiazox, tebufloquine, picarbutrazox, ziram, iminoctadine albesilate, iminoctadine acetate, dithianon, fluorimide, benzovindiflupyr, prothioconazole, carboxin, pydiflumetofen, flutriafol, triticonazole, fluquinconazole, methyltetraprole, fenpicoxamide, sedaxane, isoflucipram, silthiofam, bixafen, dimoxystrobin, pyridaclomethyl, ipflufenoquin, bromuconazole, triadimenol, florylpicoxamide, fluoxapiproline, ethaboxam, quinofumelin, aminopyrifen, mefentrifluconazole, flufenoxadiazam, and fluoxythioconazole.

[0015] As plant growth regulating active ingredients having a melting point of 80°C or higher, for example, the following ingredients may be appropriately selected: maleic hydrazide, chlormequat chloride, gibberellic acid, mepiquat chloride, thidiazuron, inabenfide, paclobutrazol, AVG, uniconazole P, and prohexadione calcium.

[0016] The pesticidal active ingredient of the present invention is preferably at least one compound selected from the group consisting of clothianidin, impirfluxam, oxazosulfil, mandestrobin, and ethaboxam.

[0017] The composition of the present invention preferably contains 10 to 60% by weight, and more preferably 15.0 to 50.0% by weight, of the total amount of pesticidal active ingredients per weight of the composition of the present invention, where, unless otherwise specified, the weight % is calculated per weight of the composition of the present invention.

[0018] The composition of the present invention contains one or more natural rubbers as an adjuvant that acts as a binder. The use of natural rubber enables the formulation to be environmentally friendly. Natural rubber refers to a substance containing cis-1,4-polyisoprene, which is derived from the sap of rubber trees. Here, the general definition of natural rubber broadly includes not only unmodified products derived from natural products, but also modified products whose chemical structure has been modified by graft modification with acrylic monomers or the like. However, in the present invention, from the perspective of providing an environmentally friendly pesticide composition, the natural rubber defined herein does not include these chemically structurally modified modified products.

[0019] On the other hand, a substance obtained by simply adding a stabilizer such as an anticoagulant (e.g., ammonia) to rubber tree sap may also be included in the natural rubber of the present invention. It may also be derived from natural rubber latex (the rubber component in natural rubber latex). The natural rubber latex is not particularly limited, and examples include field latex (raw latex extracted by tapping rubber trees), high ammonia latex (high ammonia natural rubber latex), wax ammonia latex (wax ammonia natural rubber latex), centrifugal concentrated latex, and deproteinized latex obtained by treating natural rubber latex with surfactants, enzymes, etc. Such natural rubber latex may be selected from one or a combination of two or more of these. Such natural rubber latex is commercially available, and specific examples thereof include SeLatex (registered trademark) 6111 (manufactured by Sumitomo Rubber Industries, Ltd.), SeLatex (registered trademark) 1101 (manufactured by Sumitomo Rubber Industries, Ltd.), ULACOL (registered trademark) (manufactured by Resitex Co., Ltd.), LA-LATEX (manufactured by Resitex Co., Ltd.), HA-LATEX (manufactured by Resitex Co., Ltd.), and UNIMAC LATEX (manufactured by Unimac Rubber Co., Ltd.), but are not limited to these.

[0020] The composition of the present invention is an aqueous composition, and the natural rubber is present in a dispersed state in water. By using natural rubber as a binder, the composition of the present invention can improve release properties from seeds and water resistance compared to when synthetic products or other natural materials are used. Improved release properties improve handling during sowing and also suppress release of the pesticidal active ingredient, allowing the pesticidal active ingredient to fully exert its pesticidal activity. Improved water resistance prevents the pesticidal active ingredient from leaching out upon contact with water, allowing the pesticidal active ingredient to fully exert its pesticidal activity.

[0021] The weight ratio of the pesticidal active ingredient to the natural rubber is 100:1 to 1:2, preferably 100:1 to 1:1, more preferably 100:1 to 2:1, even more preferably 100:1 to 5:2, and most preferably 50:1 to 5:2. The composition of the present invention preferably contains 0.3 to 30% by weight, more preferably 0.3 to 15.0% by weight, of natural rubber based on the weight of the composition of the present invention.

[0022] The composition of the present invention contains one or more surfactants. Examples of the surfactants that can be used in the present invention include anionic surfactants, nonionic surfactants, cationic surfactants, and amphoteric surfactants.

[0023] Examples of such anionic surfactants include sulfonates, sulfates, phosphates, carboxylates, and mixtures thereof. Examples of sulfonates include naphthalene sulfonates and their formaldehyde condensates, alkylbenzene sulfonates, alkylnaphthalene sulfonates, alkyldiphenyl ether disulfonates, α-olefin sulfonates, lignin sulfonates, polyoxyethylene alkylphenyl ether sulfonates, and dialkyl sulfosuccinates. Examples of sulfates include alkyl sulfates, polyoxyethylene alkyl ether sulfates, and polyoxyethylene alkylphenyl ether sulfates. Examples of phosphates include polyoxyethylene alkylaryl ether phosphates and polyoxyethylene tristyrylphenyl ether phosphates. Examples of carboxylates include fatty acid salts and polycarboxylates.

[0024] Examples of such nonionic surfactants include polyoxyethylene alkyl ethers, polyoxypropylene alkyl ethers, polyoxyethylene polyoxypropylene alkyl ethers, polyoxyethylene distyrylphenyl ethers, polyoxyethylene tristyrylphenyl ethers, sucrose fatty acid esters, sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, glycerin fatty acid esters, polyoxyethylene fatty acid esters, polyoxyethylene alkylamines, alkyl alkanolamides, polyoxyethylene polyoxypropylene block copolymers, alkyl polyglycosides, and acrylic copolymers.

[0025] Such cationic surfactants include, for example, alkylamine salts and quaternary ammonium salts.

[0026] Such amphoteric surfactants include, for example, alkyl betaines.

[0027] The weight ratio of the pesticidal active ingredient to the total amount of the surfactant is preferably 1000:1 to 5:3, and more preferably 10:1 to 5:3. The composition of the present invention preferably contains 0.1 to 10% by weight, and more preferably 2 to 10% by weight, of the total amount of surfactant per weight of the composition of the present invention.

[0028] The composition of the present invention contains water. The water used in the composition of the present invention is not particularly limited, and examples thereof include water used in ordinary aqueous pesticide compositions, such as tap water, well water, and ion-exchanged water.

[0029] The composition of the present invention preferably contains 20 to 80% by weight, and more preferably 20 to 65% by weight, of water based on the weight of the composition of the present invention.

[0030] The composition of the present invention may further contain one or more formulation adjuvants used in conventional aqueous pesticide compositions, such as thickeners, antifoaming agents, preservatives, antifreeze agents, and colorants.

[0031] Examples of such thickeners include natural polysaccharides such as xanthan gum, rhamsan gum, locust bean gum, guar gum, carrageenan, welan gum, alginic acid, alginates, and tragacanth gum; mineral powders such as magnesium aluminum silicate, magnesium aluminum silicate, smectite, bentonite, hectorite, synthetic hydrous silica, and dry silica; and alumina sol. These thickeners can be used alone or in combination of two or more. When the composition of the present invention contains thickeners, the total content thereof is preferably 0.1 to 5 wt. %, and more preferably 0.1 to 1.0 wt. %, based on the weight of the composition of the present invention.

[0032] Examples of such defoaming agents include silicone-based defoaming agents. Two or more types of defoaming agents may be used. When the composition of the present invention contains defoaming agents, the total content thereof is preferably 0.01 to 3 wt % based on the weight of the composition of the present invention.

[0033] Examples of such preservatives include p-hydroxybenzoic acid esters, salicylic acid derivatives, and isothiazolinone preservatives. These preservatives can be used alone or in combination. When the composition of the present invention contains preservatives, the total content thereof is preferably 0.005 to 1 wt % based on the weight of the composition of the present invention.

[0034] Examples of such antifreezing agents include ethylene glycol, propylene glycol, urea, and glycerin. These antifreezing agents can be used alone or in combination. When the composition of the present invention contains an antifreezing agent, the total content thereof is preferably 1 to 20 wt % based on the weight of the composition of the present invention.

[0035] Examples of such colorants include pigments such as iron oxide, titanium oxide, Prussian blue, and azo pigments, and dyes such as alizarin dyes, azo dyes, and metal phthalocyanine dyes. These colorants can be used alone or in combination. When the composition of the present invention contains colorants, the total content thereof is preferably 1.0 to 10.0 wt % based on the weight of the composition of the present invention.

[0036] The aqueous pesticide composition of the present invention may be in the form of an aqueous suspension concentrate (also called SC) in which particles of a solid pesticidal active ingredient are suspended in water; an oil-in-water emulsion composition (also called EW) in which a water-insoluble pesticidal active ingredient is emulsified and dispersed as fine particles in water by adding an emulsifier; and an aqueous emulsion suspension composition (also called suspoemulsion SE) in which oil droplets of a liquid pesticidal ingredient and particles of a solid pesticidal ingredient are both dispersed in water, with the aqueous suspension composition being preferred.

[0037] The composition of the present invention can be produced using a pesticide active ingredient, natural rubber, a surfactant, water, and, if necessary, formulation adjuvants such as a thickener, an antifoaming agent, a preservative, an antifreeze agent, and a colorant, and the production method thereof is not particularly limited.

[0038] A method for producing the composition of the present invention includes a step of adding natural rubber to a dispersion containing an agrochemically active ingredient, a surfactant, and water, in which the agrochemically active ingredient is emulsified or suspended. More specifically, the method includes a first step of producing a dispersion containing an agrochemically active ingredient, a surfactant, and water, in which the agrochemically active ingredient is emulsified or suspended, and a second step of uniformly dispersing natural rubber in the dispersion. The first step includes, for example, adding the agrochemically active ingredient, the surfactant, and, if necessary, formulation adjuvants such as an antifoaming agent, a thickener, and an antifreeze to water, dispersing the resulting mixture using a disper mill or the like, and then pulverizing and dispersing the agrochemically active ingredient in a wet mill such as a bead mill so that the average particle size of the agrochemically active ingredient is 10 μm or less, preferably 5 μm or less. In the present invention, particle size refers to the volume median diameter. The volume median diameter refers to the particle size at which the cumulative frequency in a volume-based frequency distribution reaches 50%, and can be determined by wet measurement using a laser diffraction particle size analyzer. More specifically, the object to be measured is dispersed in water and measured using the device. A Mastersizer 3000 manufactured by Malvern Instruments is used as such a laser diffraction particle size distribution analyzer. The second step involves adding natural rubber, and optionally formulation adjuvants such as thickeners, preservatives, and colorants, to the dispersion obtained in the first step and uniformly mixing them. In the second step, natural rubber-containing latex can also be used instead of natural rubber itself.

[0039] An example of a method for producing the composition of the present invention is described below. (First Step) First, the pesticidal active ingredient, surfactant, and formulation adjuvants are added to water to obtain a mixture. Examples of such formulation adjuvants include antifoaming agents, thickeners, and antifreeze agents. Next, the resulting mixture is finely pulverized using a commercially available wet mill such as a bead mill to obtain a suspension in which the pesticidal active ingredient is suspended. An example of such a wet mill is a horizontal bead mill (DYNO-MILL KDL) manufactured by Willy A. Bachofen AG Maschinenfabrik. (Second Step) First, the formulation adjuvants are added to water and stirred to obtain a mixture. Examples of such formulation adjuvants include antifreeze agents, thickeners, and preservatives. Next, the mixture and, if necessary, a colorant are added to the suspension obtained in the first step, and then natural rubber or an aqueous dispersion containing natural rubber, and, if necessary, water are added and mixed to obtain the aqueous suspension pesticidal composition of the present invention.

[0040] Hereinafter, the term "seed" includes seeds and vegetative reproductive organs. Vegetative reproductive organs refer to plant roots, stems, leaves, and other parts that have the ability to grow when separated from the plant body and placed in soil, and include, for example, tuberous roots, creeping roots, bulbs, corms (or solid bulbs), tubers, rhizomes, stolons, rhizophores, cane cuttings, propagules, and vine cuttings.

[0041] The composition of the present invention is primarily used for seed treatment, but is not limited thereto. Examples of seeds that can be treated with the composition of the present invention include, but are not limited to, rice, wheat, corn, barley, rye, sorghum, and turfgrass; dicotyledonous plants (e.g., cotton, sugar beet, peanut, potato, sunflower, soybean, alfalfa, and rapeseed); and other vegetable seeds. The above-mentioned plants are not particularly limited as long as they are commonly cultivated varieties. The above-mentioned plants also include plants that can be produced by natural crossbreeding, plants that can be generated by mutation, F1 hybrid plants, and genetically modified plants.

[0042] Seeds to which the composition of the present invention is attached can be produced by treating the seeds with the composition of the present invention. Examples of seed treatment methods using the composition of the present invention include spraying treatment in which the undiluted or diluted solution of the composition of the present invention is sprayed onto the seed surface in a mist, smearing treatment in which the undiluted or diluted solution of the composition of the present invention is applied to the seeds, immersion treatment in which the seeds are immersed in the undiluted or diluted solution of the composition of the present invention for a certain period of time, and methods in which the seeds are coated with a carrier containing the composition of the present invention (film coating treatment, pellet coating treatment, etc.).

[0043] An example of a method for producing seeds having the composition of the present invention attached thereto by smear treatment is described below. First, the composition of the present invention is mixed with ion-exchanged water to prepare a diluted solution. Next, the diluted solution or the undiluted solution of the composition of the present invention is applied to seeds and allowed to remain. A commercially available device, such as HEGE11 manufactured by WINTERSTEIGER, may be used for this purpose. The smeared seeds can be dried in a stainless steel tray to obtain seeds having the composition of the present invention attached thereto.

[0044] By treating plant seeds with the composition of the present invention and using the seeds, pests can be controlled.

[0045] When the pesticide active ingredient contains an insecticidal active ingredient, acaricidal active ingredient or nematicidal active ingredient, such pests include, but are not limited to, harmful arthropods such as harmful insects and harmful mites, nematodes and other nematodes, and harmful mollusks.

[0046] When a fungicidal active ingredient is contained as the pesticidal active ingredient, such harmful organisms include, but are not limited to, plant pathogenic microorganisms such as fungi, oomycetes, Phytomyxea, and bacteria. Examples of fungi include Ascomycota, Basidiomycota, Blasocladiomycota, Chytridiomycota, Mucoromycota, and Olpidiomycota.

[0047] The present invention will now be described in more detail with reference to examples and comparative examples, but the present invention is not limited to these examples.

[0048] Production Example 1 47.8 parts by weight of clothianidin, 6.0 parts by weight of glycerin, 5.0 parts by weight of an acrylic graft copolymer (Terseperse 2500, manufactured by HUNTSMAN), 1.0 part by weight of an acrylic copolymer (Envipol 871, manufactured by Lamberti), 1.0 part by weight of an EO-PO block copolymer (Pluronic P103, manufactured by BASF), 0.3 part by weight of a silicone-based antifoaming agent (Xiameter AFE-0010, manufactured by Dow Corning Toray Co., Ltd.), 0.3 part by weight of magnesium aluminum silicate (Veegum R, manufactured by Vanderbilt), and 20.2 parts by weight of ion-exchanged water were mixed to obtain a mixture (i). The mixture (i) was wet-pulverized using a horizontal bead mill (DYNO-MILL KDL, manufactured by Willy A. Bachofen AG Maschinenfabrik) to obtain a suspension (i). Meanwhile, 0.05 parts by weight of xanthan gum (Kelzan S plus, manufactured by CP Kelco) and 0.25 parts by weight of a preservative (Proxel GXL, manufactured by Lonza, containing 1,2-benzisothiazolin-3-one as an active ingredient) were added to 4.7 parts by weight of ion-exchanged water, and stirring was continued for 2 hours to obtain a mixture (ii). The mixture (ii) and 8.4 parts by weight of a red pigment aqueous dispersion (Agrocer Red 112 disp, manufactured by CLARIANT) were added to the previously obtained suspension (i) and mixed, to obtain a mixture (iii). To this was added 5.0 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex Corporation) and mixed to obtain an aqueous suspension concentrate pesticidal composition of the present invention (hereinafter also referred to as composition (1) of the present invention) consisting of the components shown in Table 1. The unit of the numerical value of each component shown in the following tables is % by weight when the total amount of the aqueous suspension concentrate pesticidal composition is taken as 100% by weight.

[0049] Preparation Example 2 Mixture (iii) was obtained by the same procedure as in Preparation Example 1. To this was added 3.0 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex Corporation) and 2.0 parts by weight of ion-exchanged water to obtain an aqueous suspension concentrate pesticidal composition of the present invention (hereinafter also referred to as composition (2) of the present invention) consisting of the components shown in Table 1.

[0050] Preparation Example 3 Mixture (iii) was obtained by the same procedure as in Preparation Example 1. To this mixture, 2.0 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex Corporation) and 3.0 parts by weight of ion-exchanged water were added to obtain an aqueous suspension concentrate pesticidal composition of the present invention (hereinafter also referred to as composition (3) of the present invention) consisting of the components shown in Table 1.

[0051] Preparation Example 4 Mixture (iii) was obtained by the same procedure as in Preparation Example 1. To this mixture, 1.0 part by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex Corporation) and 4.0 parts by weight of ion-exchanged water were added to obtain an aqueous suspension concentrate pesticidal composition of the present invention (hereinafter also referred to as composition (4) of the present invention) consisting of the components shown in Table 1.

[0052] Preparation Example 5: 30.0 parts by weight of inpirfluxam, 3.7 parts by weight of a mixture of 40% by weight of polyoxyethylene tristyrylphenyl ether phosphate ester potassium salt and 60% by weight of propylene glycol (Soprofol FLK, manufactured by Solvay Nicca), 0.15 parts by weight of a silicone antifoaming agent (Xiameter AFE-1530 Antifoam Emulsion, manufactured by Dow Corning Toray Co., Ltd.), and 27.15 parts by weight of ion-exchanged water were mixed to obtain a mixture (iv). The mixture (iv) was wet-pulverized using a horizontal bead mill (DYNO-MILL KDL, manufactured by Willy A. Bachofen AG Maschinenfabrik) to obtain a suspension (ii). Separately, 0.15 parts by weight of xanthan gum (Kelzan, manufactured by CP Kelco), 0.3 parts by weight of magnesium aluminum silicate (Veegum R, manufactured by Vanderbilt), 3.7 parts by weight of propylene glycol, and 0.22 parts by weight of a preservative (containing 1,2-benzisothiazolin-3-one as the active ingredient, Proxel GXL, manufactured by Lonza) were added to 14.63 parts by weight of ion-exchanged water, and stirring was continued for 2 hours to obtain mixture (v). Mixture (v) was added to the previously obtained suspension (ii) and mixed to obtain mixture (vi). To this was added 20.0 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex), to obtain an aqueous suspension pesticide composition of the present invention (hereinafter also referred to as composition (5) of the present invention) consisting of the components shown in Table 3.

[0053] Preparation Example 6 The same procedure as in Preparation Example 5 was carried out to obtain mixture (vi). To this mixture, 15.0 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex Corporation) and 5.0 parts by weight of ion-exchanged water were added to obtain an aqueous suspension concentrate pesticidal composition of the present invention (hereinafter also referred to as composition (6) of the present invention) consisting of the components shown in Table 3.

[0054] Preparation Example 7 Mixture (vi) was obtained by the same procedure as in Preparation Example 5. To this mixture, 10.0 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex Corporation) and 10.0 parts by weight of ion-exchanged water were added to obtain an aqueous suspension concentrate pesticidal composition of the present invention (hereinafter also referred to as composition (7) of the present invention) consisting of the components shown in Table 3.

[0055] Preparation Example 8 The same procedure as in Preparation Example 5 was carried out to obtain mixture (vi). To this mixture, 4.0 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex Corporation) and 16.0 parts by weight of ion-exchanged water were added to obtain an aqueous suspension concentrate pesticidal composition of the present invention (hereinafter also referred to as composition (8) of the present invention) consisting of the components shown in Table 3.

[0056] Preparation Example 9 Mixture (vi) was obtained by the same procedure as in Preparation Example 5. To this mixture, 2.0 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex Corporation) and 18.0 parts by weight of ion-exchanged water were added to obtain an aqueous suspension concentrate pesticidal composition of the present invention (hereinafter also referred to as composition (9) of the present invention) consisting of the components shown in Table 3.

[0057] Preparation Example 10 The same procedure as in Preparation Example 5 was carried out to obtain mixture (vi). To this mixture, 1.0 part by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex Corporation) and 19.0 parts by weight of ion-exchanged water were added to obtain an aqueous suspension concentrate pesticidal composition of the present invention (hereinafter also referred to as composition (10) of the present invention) consisting of the components shown in Table 3.

[0058] Preparation Example 11 Mixture (vi) was obtained by the same procedure as in Preparation Example 5. To this mixture, 0.5 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex Corporation) and 19.5 parts by weight of ion-exchanged water were added to obtain an aqueous suspension concentrate pesticidal composition of the present invention (hereinafter also referred to as composition (11) of the present invention) consisting of the components shown in Table 3.

[0059] Preparation Example 12: 30.0 parts by weight of ethaboxam, 3.7 parts by weight of a mixture of 40% by weight of polyoxyethylene tristyrylphenyl ether phosphate potassium salt and 60% by weight of propylene glycol (Soprofol FLK, manufactured by Solvay Nicca), 0.15 parts by weight of a silicone antifoaming agent (Xiameter AFE-1530 Antifoam Emulsion, manufactured by Dow Corning Toray Co., Ltd.), and 27.15 parts by weight of ion-exchanged water were mixed to obtain a mixture (vii). The mixture (vii) was wet-pulverized using a horizontal bead mill (DYNO-MILL KDL, manufactured by Willy A. Bachofen AG Maschinenfabrik) to obtain a suspension (iii). Separately, 0.15 parts by weight of xanthan gum (Kelzan, manufactured by CP Kelco), 0.3 parts by weight of magnesium aluminum silicate (Veegum R, manufactured by Vanderbilt), 3.7 parts by weight of propylene glycol, and 0.22 parts by weight of a preservative (Proxel GXL, manufactured by Lonza, containing 1,2-benzisothiazolin-3-one as an active ingredient) were added to 14.63 parts by weight of ion-exchanged water, and stirring was continued for 2 hours to obtain mixture (viii). The mixture (viii) obtained previously was added to suspension (iii) and mixed, to obtain mixture (ix). To this was added 4.0 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex Corporation) and 16.0 parts by weight of ion-exchanged water to obtain an aqueous suspension concentrate pesticidal composition of the present invention (hereinafter also referred to as composition (12) of the present invention) consisting of the components shown in Table 4.

[0060] Production Example 13: 30.0 parts by weight of mandestrobin, 7.5 parts by weight of a mixture of 40% by weight of polyoxyethylene tristyrylphenyl ether phosphate ester potassium salt and 60% by weight of propylene glycol (Soprofol FLK, manufactured by Solvay Nicca), 0.15 parts by weight of a silicone antifoaming agent (KS-538, manufactured by Shin-Etsu Chemical Co., Ltd.), and 31.60 parts by weight of ion-exchanged water were mixed to obtain a mixture (x). The mixture (x) was wet-pulverized using a horizontal bead mill (DYNO-MILL KDL, manufactured by Willy A. Bachofen AG Maschinenfabrik) to obtain a suspension (iv). Separately, 0.08 parts by weight of xanthan gum (Kelzan S, CP Kelco), 0.16 parts by weight of magnesium aluminum silicate (Veegum R, Vanderbilt), and 0.15 parts by weight of a preservative (containing 1,2-benzisothiazolin-3-one as the active ingredient, Proxel GXL, Lonza) were added to 10.36 parts by weight of ion-exchanged water, and stirring was continued for 2 hours to obtain mixture (xi). Mixture (xi) was added to the previously obtained suspension (iv) and mixed to obtain mixture (xii). To this was added 4.0 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), Resitex) and 16.0 parts by weight of ion-exchanged water to obtain an aqueous suspension pesticide composition of the present invention (hereinafter also referred to as composition (13) of the present invention) consisting of the components shown in Table 4.

[0061] Preparation Example 14: 34.0 parts by weight of oxazosulfil, 10.0 parts by weight of a mixture of 40% by weight of polyoxyethylene tristyrylphenyl ether phosphate potassium salt and 60% by weight of propylene glycol (Soprofol FLK, manufactured by Solvay Nicca), 0.20 parts by weight of a silicone antifoaming agent (KS-538, manufactured by Shin-Etsu Chemical Co., Ltd.), and 38.6 parts by weight of ion-exchanged water were mixed to obtain a mixture (xiii). The mixture (xiii) was wet-pulverized using a horizontal bead mill (DYNO-MILL KDL, manufactured by Willy A. Bachofen AG Maschinenfabrik) to obtain a suspension (v). Meanwhile, 0.10 parts by weight of xanthan gum (Kelzan S PLUS, manufactured by CP Kelco), 0.2 parts by weight of magnesium aluminum silicate (Veegum R, manufactured by Vanderbilt), 2.0 parts by weight of propylene glycol, and 0.20 parts by weight of a preservative (containing 1,2-benzisothiazolin-3-one as the active ingredient, Proxel GXL, manufactured by Lonza) were added to 9.7 parts by weight of ion-exchanged water, and stirring was continued for 2 hours to obtain a mixture (xiv). This mixture (xiv) was added to the previously obtained suspension (v) and mixed to obtain a mixture (xv). To this was added 5.0 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex), to obtain an aqueous suspension pesticide composition of the present invention consisting of the components shown in Table 4 (hereinafter also referred to as the present invention composition (14)).

[0062] Production Example 15 22.6 parts by weight of clothianidin, 5.65 parts by weight of mandestrobin, 3.73 parts by weight of impilfluxam, 7.57 parts by weight of ethaboxam, 8.48 parts by weight of lignosulfonate sodium salt (Reax910, manufactured by Ingevity), 0.34 parts by weight of EO-PO block copolymer (Synperonic PE / F-127, manufactured by Croda), 5.65 parts by weight of glycerin, 0.23 parts by weight of a silicone-based antifoaming agent (Xiameter ACP-1500, manufactured by Dow Corning Toray Co., Ltd.), 0.23 parts by weight of aluminum magnesium silicate (Veegum R, manufactured by Vanderbilt), and 20.35 parts by weight of ion-exchanged water were mixed to obtain a mixture (xvi). The mixture (xvi) was wet-pulverized using a horizontal bead mill (DYNO-MILL KDL, manufactured by Willy A. Bachofen AG Maschinenfabrik) to obtain a suspension (vi). Meanwhile, 0.11 parts by weight of xanthan gum (Kelzan S PLUS, manufactured by CP Kelco) and 0.23 parts by weight of a preservative (Proxel GXL, manufactured by Lonza, containing 1,2-benzisothiazolin-3-one as an active ingredient) were added to 10.66 parts by weight of ion-exchanged water, and stirring was continued for 2 hours to obtain a mixture (xvii). The mixture (xvii) and 8.47 parts by weight of a red pigment aqueous dispersion (Agrocer Red 112 disp, manufactured by CLARIANT) were added to the previously obtained suspension (vi) and mixed to obtain mixture (xviii). To this mixture, 5.7 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex) was added to obtain an aqueous suspension concentrate pesticide composition of the present invention (hereinafter also referred to as composition (15) of the present invention) consisting of the components shown in Table 4.

[0063] Comparative Production Example 1 Mixture (iii) was obtained by the same procedure as in Production Example 1. 5.0 parts by weight of ion-exchanged water was added thereto to obtain a comparative aqueous suspension concentrate pesticidal composition (hereinafter also referred to as comparative composition (1)) consisting of the components shown in Table 2.

[0064] Comparative Production Example 2 Mixture (iii) was obtained by the same procedure as in Production Example 1. 0.3 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex Corporation) and 4.7 parts by weight of ion-exchanged water were added thereto to obtain a comparative aqueous suspension concentrate pesticide composition (hereinafter also referred to as comparative composition (2)) consisting of the components shown in Table 2.

[0065] Comparative Production Example 3: Mixture (iii) was obtained by the same procedure as in Production Example 1. Instead of natural rubber, 0.6 parts by weight of polyvinyl alcohol (EXCEVAL RS2117, manufactured by Kuraray Co., Ltd.), known as a degradable binder, was added to 4.4 parts by weight of ion-exchanged water, and the mixture was heated and mixed to obtain mixture (xix). Mixture (xviii) was added to mixture (iii) to obtain a comparative aqueous suspension concentrate pesticide composition (hereinafter also referred to as comparative composition (3)) consisting of the components shown in Table 2.

[0066] Comparative Production Example 4 Mixture (iii) was obtained by the same procedure as in Production Example 1. 5.0 parts by weight of an aqueous solution containing 24% by weight of partially saponified polyvinyl alcohol (Selvol 24 203, manufactured by Sekisui Chemical Co., Ltd.) as a degradable adhesive agent instead of natural rubber was added thereto to obtain a comparative aqueous suspension concentrate pesticide composition (hereinafter also referred to as comparative composition (4)) consisting of the components shown in Table 2.

[0067] Comparative Production Example 5 Mixture (iii) was obtained by the same procedure as in Production Example 1. 5.0 parts by weight of an aqueous dispersion (Michem Lube 156PFP, manufactured by Michelman Co.) containing 24.5 to 25.5% by weight of carnauba wax, a naturally derived binder, instead of natural rubber was added to the mixture to obtain a comparative aqueous suspension concentrate pesticide composition (hereinafter also referred to as comparative composition (5)) consisting of the components shown in Table 2.

[0068] Comparative Production Example 6 Mixture (iii) was obtained by the same procedure as in Production Example 1. 5.0 parts by weight of an aqueous dispersion (Dur-O-set E-200 Emulsion, manufactured by Celanese) containing 54.5 to 56.5% by weight of ethylene vinyl acetate copolymer, a synthetic resin binder, instead of natural rubber was added thereto to obtain a comparative aqueous suspension concentrate pesticide composition (hereinafter also referred to as comparative composition (6)) consisting of the components shown in Table 2.

[0069] Comparative Production Example 7 The same operation as in Production Example 5 was carried out to obtain a mixture (vi), to which 20.0 parts by weight of ion-exchanged water was added to obtain a comparative aqueous suspension concentrate pesticidal composition (hereinafter also referred to as comparative composition (7)) consisting of the components shown in Table 3.

[0070] Comparative Production Example 8 A mixture (ix) was obtained by the same procedure as in Production Example 12. 20.0 parts by weight of ion-exchanged water was added thereto to obtain a comparative aqueous suspension concentrate pesticidal composition (hereinafter also referred to as comparative composition (8)) consisting of the components shown in Table 4.

[0071] Comparative Production Example 9 A mixture (xii) was obtained by the same procedure as in Production Example 13. 20.0 parts by weight of ion-exchanged water was added thereto to obtain a comparative aqueous suspension concentrate pesticidal composition (hereinafter also referred to as comparative composition (9)) consisting of the components shown in Table 4.

[0072] Comparative Production Example 10 The same procedure as in Production Example 14 was carried out to obtain a mixture (xv), to which 5.0 parts by weight of ion-exchanged water was added to obtain a comparative aqueous suspension concentrate pesticidal composition (hereinafter also referred to as comparative composition (10)) consisting of the components shown in Table 4.

[0073] Comparative Production Example 11 A mixture (xviii) was obtained by the same procedure as in Production Example 15. 5.7 parts by weight of ion-exchanged water was added thereto to obtain a comparative aqueous suspension concentrate pesticidal composition (hereinafter also referred to as comparative composition (11)) consisting of the components shown in Table 4.

[0074] Seed Treatment Example 1 Using a seed treater (trade name: HEGE11, manufactured by WINTERSTEIGER), a treatment solution was prepared by adding 26.2 parts by weight of the composition of the present invention (1) to 73.8 parts by weight of ion-exchanged water, and the solution was applied to 250 g of corn seeds by smear treatment so that the amount of clothianidin carried per seed was 0.5 mg. The smear-treated seeds were dried in a stainless steel tray at a temperature of 20°C and a relative humidity of 50% for 2 days or more to obtain seeds treated with the composition of the present invention (1). Smear treatment was carried out using the compositions of the present invention (2) to (4) in the same manner as in Seed Treatment Example 1 to obtain seeds treated with the compositions of the present invention (2) to (4), respectively.

[0075] Comparative Seed Treatment Example 1 Using the comparative compositions (1) to (6), smear treatment was carried out in the same manner as in Seed Treatment Example 1 to obtain seeds treated with the comparative compositions (1) to (6), respectively.

[0076] Seed Treatment Example 2 Using a seed treater (trade name: HEGE11, manufactured by WINTERSTEREIGER), a treatment solution was prepared by adding 57.0 parts by weight of ion-exchanged water to 43.0 parts by weight of each of the present compositions (5) to (11), and the solution was applied to 250 g of corn seeds by smear treatment so that the amount of impirfluxam carried per seed was 0.5 mg. The smeared seeds were dried in a stainless steel tray at a temperature of 20°C and a relative humidity of 50%, to obtain seeds treated with the present compositions (5) to (11), respectively.

[0077] Comparative Seed Treatment Example 2 Using the comparative composition (7), smear treatment was carried out in the same manner as in Seed Treatment Example 2 to obtain seeds treated with the comparative composition (7).

[0078] Seed Treatment Example 3 Using a seed treater (trade name: HEGE11, manufactured by WINTERSTEREIGER), a treatment solution prepared by adding 62.0 parts by weight of ion-exchanged water to 38.0 parts by weight of the composition of the present invention (12) was smeared onto 250 g of corn seeds so that the amount of ethaboxam retained per seed was 0.5 mg. The smeared seeds were dried in a stainless steel tray at a temperature of 20°C and a relative humidity of 50%, to obtain seeds treated with the composition of the present invention (12).

[0079] Comparative Seed Treatment Example 3 Smear treatment was carried out in the same manner as in Seed Treatment Example 3 using the comparative composition (8) to obtain seeds treated with the comparative composition (8).

[0080] Seed Treatment Example 4 Using a seed treater (trade name: HEGE11, manufactured by WINTERSTEREIGER), a treatment solution was prepared by adding 62.0 parts by weight of ion-exchanged water to 38.0 parts by weight of the composition of the present invention (13), and the treatment solution was applied to 250 g of corn seeds by smear treatment so that the amount of mandestrobin held per seed was 0.5 mg. The smeared seeds were dried in a stainless steel tray at a temperature of 20°C and a relative humidity of 50%, to obtain seeds treated with the composition of the present invention (13).

[0081] Comparative Seed Treatment Example 4 Smear treatment was carried out in the same manner as in Seed Treatment Example 4 using the comparative composition (9) to obtain seeds treated with the comparative composition (9).

[0082] Seed Treatment Example 5 Using a seed treater (trade name: HEGE11, manufactured by WINTERSTEREIGER), a treatment solution was prepared by adding 62.0 parts by weight of ion-exchanged water to 38.0 parts by weight of the composition of the present invention (14), and the solution was applied to 250 g of corn seeds by smear treatment so that the amount of oxazosulfil retained per seed was 0.5 mg. The smeared seeds were dried in a stainless steel tray at a temperature of 20°C and a relative humidity of 50%, to obtain seeds treated with the composition of the present invention (14).

[0083] Comparative Seed Treatment Example 5 Smear treatment was carried out in the same manner as in Seed Treatment Example 5 using the comparative composition (10) to obtain seeds treated with the comparative composition (10).

[0084] Seed Treatment Example 6 Using a seed treater (trade name: HEGE11, manufactured by WINTERSTEIGER), a treatment solution prepared by adding 57.1 parts by weight of ion-exchanged water to 42.9 parts by weight of the composition of the present invention (15) was smeared onto 200 g of corn seeds. The smeared seeds were dried in a stainless steel tray at a temperature of 20°C and a relative humidity of 50% for 2 days or more to obtain seeds treated with the composition of the present invention (15).

[0085] Comparative Seed Treatment Example 6 Smear treatment was carried out in the same manner as in Seed Treatment Example 6 using the comparative composition (11) to obtain seeds treated with the comparative composition (11).

[0086] Test Example 1: Peelability Evaluation Using the treated seeds obtained in the above Seed Treatment Examples 1 to 6 and Comparative Seed Treatment Examples 1 to 6, the amount of dust detached from the seeds was measured to evaluate the inhibition of dust generation from the seeds. Under the following measurement conditions, the mass of dust sucked and captured on glass fiber filter paper for a predetermined time was measured as the amount of dust generated from the smear-treated seeds. <Measurement Conditions> The measurement device used was a Heubach Dustmeter (manufactured by Heubach Engineering GmbH, Germany), and the measurement mode was Type I. The ambient temperature and humidity during measurement were 25°C (±2°C) and a relative humidity of 40 to 60%. The measurement was also carried out at normal pressure. The specific measurement method is as follows. 1. Smeared seeds (100.00 g) of the measurement sample were placed in the rotating drum of the dust meter. 2. The mass of a 50 mm diameter glass fiber filter was measured to the nearest 0.0001 g (referred to as [Da] g). The glass fiber filter used was Glass Fiber Filters, GF-92 (manufactured by Tisch Scientific) processed to a diameter of 50 mm. 3. A large particle separator was attached to the rotating drum, and a filter case equipped with glass fiber filter paper was also attached. 4. The dust meter was set to the following measurement conditions and measurements were taken: drum rotation speed: 30 R / min, suction air volume: 20 L / min, time (measurement time): 5 minutes. After 5.5 minutes, the mass of the glass fiber filter was measured to the nearest 0.0001 g (referred to as [Db] g). The amount of dust was calculated using the following formula 1 based on [Da] and [Db]. The amount of fine dust [g] per 100 kg of smeared seeds was calculated using the total mass of the smeared seeds as the basis using the following formula 1: [Mathematical formula 1] Amount of dust [g] per 100 kg of seeds = ([Db] - [Da]) / 100.00 Formula 1 The results are shown in Tables 1 to 4 below. Here, the evaluation values ​​in the tables represent the average of two repetitions. However, the evaluation values ​​for the present composition (15) and the comparative composition (11) represent the results of one repetition.

[0087]

[0088]

[0089]

[0090]

[0091] Production Example 16: 37.0 parts by weight of inpirfluxam, 4.63 parts by weight of a mixture of 40% by weight of polyoxyethylene tristyrylphenyl ether phosphate ester potassium salt and 60% by weight of propylene glycol (Soprofol FLK, manufactured by Solvay Nicca), 0.19 parts by weight of a silicone antifoaming agent (Xiameter AFE-1530 Antifoam Emulsion, manufactured by Dow Corning Toray Co., Ltd.), and 35.14 parts by weight of ion-exchanged water were mixed to obtain a mixture (A). The mixture (A) was wet-pulverized using a horizontal bead mill (DYNO-MILL KDL, manufactured by Willy A. Bachofen AG Maschinenfabrik) to obtain a suspension (A). Separately, 0.19 parts by weight of xanthan gum (Kelzan, manufactured by CP Kelco), 0.37 parts by weight of magnesium aluminum silicate (Veegum R, manufactured by Vanderbilt), 4.63 parts by weight of propylene glycol, and 0.28 parts by weight of a preservative (Proxel GXL, manufactured by Lonza, containing 1,2-benzisothiazolin-3-one as an active ingredient) were added to 17.57 parts by weight of ion-exchanged water, and stirring was continued for 2 hours to obtain mixture (A-2). Mixture (A-2) was added to the previously obtained suspension (A) and mixed, to obtain mixture (A-3). 1.69 parts by weight of the mixture (A-3), 0.17 parts by weight of a red pigment aqueous dispersion (Agrocer red 112 disp, manufactured by CLARIANT), 0.08 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex Co., Ltd.), and 1.54 parts by weight of ion-exchanged water were added to obtain an aqueous suspension concentrate pesticide composition of the present invention (hereinafter also referred to as the composition (16) of the present invention).

[0092] Production Example 17 A mixture (A-3) was obtained by the same operation as in Production Example 16. 1.69 parts by weight of the mixture (A-3), 0.17 parts by weight of a red pigment aqueous dispersion (Agrocer Red 112 disp, manufactured by CLARIANT), 0.17 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex Corporation), and 1.45 parts by weight of ion-exchanged water were added to obtain an aqueous suspension concentrate pesticide composition of the present invention (hereinafter also referred to as the composition (17) of the present invention).

[0093] Production Example 18: 34.0 parts by weight of oxazosulfil, 10.0 parts by weight of a mixture of 40% by weight of polyoxyethylene tristyrylphenyl ether phosphate potassium salt and 60% by weight of propylene glycol (Soprofol FLK, manufactured by Solvay Nicca), 0.20 parts by weight of a silicone antifoaming agent (KS-538, manufactured by Shin-Etsu Chemical Co., Ltd.), and 43.8 parts by weight of ion-exchanged water were mixed to obtain a mixture (B). The mixture (B) was wet-pulverized using a horizontal bead mill (DYNO-MILL KDL, manufactured by Willy A. Bachofen AG Maschinenfabrik) to obtain a suspension (B). Separately, 0.10 parts by weight of xanthan gum (Kelzan S PLUS, manufactured by CP Kelco), 0.20 parts by weight of magnesium aluminum silicate (Veegum R, manufactured by Vanderbilt), 2.0 parts by weight of propylene glycol, and 0.20 parts by weight of a preservative (containing 1,2-benzisothiazolin-3-one as an active ingredient, Proxel GXL(S), manufactured by Lonza) were added to 9.5 parts by weight of ion-exchanged water, and stirring was continued for 2 hours to obtain mixture (B-2). Mixture (B-2) was added to the previously obtained suspension (B) and mixed, to obtain mixture (B-3). 1.83 parts by weight of the mixture (B-3), 0.19 parts by weight of a red pigment aqueous dispersion (Agrocer red 112 disp, manufactured by CLARIANT), 0.09 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex Co., Ltd.), and 1.37 parts by weight of ion-exchanged water were added to obtain an aqueous suspension concentrate pesticide composition of the present invention (hereinafter also referred to as the composition (18) of the present invention).

[0094] Production Example 19 Mixture (B-3) was obtained by the same operation as in Production Example 18. 1.83 g of the mixture (B-3), 0.19 parts by weight of a red pigment aqueous dispersion (Agrocer red 112 disp, manufactured by CLARIANT), 0.19 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex Corporation), and 1.27 parts by weight of ion-exchanged water were added to obtain an aqueous suspension concentrate pesticide composition of the present invention (hereinafter also referred to as the composition (19) of the present invention).

[0095] Production Example 20: 18.0 parts by weight of oxazosulfil, 10.0 parts by weight of a mixture of 40% by weight of polyoxyethylene tristyrylphenyl ether phosphate potassium salt and 60% by weight of propylene glycol (Soprofol FLK, manufactured by Solvay Nicca), 0.20 parts by weight of a silicone antifoaming agent (KS-538, manufactured by Shin-Etsu Chemical Co., Ltd.), and 25.7 parts by weight of ion-exchanged water were mixed to obtain a mixture (C). The mixture (C) was wet-pulverized using a horizontal bead mill (DYNO-MILL KDL, manufactured by Willy A. Bachofen AG Maschinenfabrik) to obtain a suspension (C). Separately, 0.10 parts by weight of xanthan gum (Kelzan S PLUS, manufactured by CP Kelco), 0.20 parts by weight of magnesium aluminum silicate (Veegum R, manufactured by Vanderbilt), and 0.20 parts by weight of a preservative (containing 1,2-benzisothiazolin-3-one as an active ingredient, Proxel GXL(S), manufactured by Lonza) were added to 8.1 parts by weight of ion-exchanged water, and stirring was continued for 2 hours to obtain mixture (C-2). Mixture (C-2) was added to the previously obtained suspension (C) and mixed, to obtain mixture (C-3). To this was added 5.0 parts by weight of a red pigment aqueous dispersion (Agrocer red 112 disp, manufactured by CLARIANT), 5.0 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex Corporation), and 27.5 parts by weight of ion-exchanged water, to obtain an aqueous suspension concentrate pesticidal composition of the present invention (hereinafter also referred to as composition (20) of the present invention).

[0096] Preparation Example 21: 18.0 parts by weight of oxazosulfil, 10.0 parts by weight of a mixture of 40% by weight of polyoxyethylene tristyrylphenyl ether phosphate potassium salt and 60% by weight of propylene glycol (Soprofol FLK, manufactured by Solvay Nicca), 0.20 parts by weight of a silicone antifoaming agent (KS-538, manufactured by Shin-Etsu Chemical Co., Ltd.), and 25.7 parts by weight of ion-exchanged water were mixed to obtain a mixture (D). The mixture (D) was wet-pulverized using a horizontal bead mill (DYNO-MILL KDL, manufactured by Willy A. Bachofen AG Maschinenfabrik) to obtain a suspension (D). Separately, 0.10 parts by weight of xanthan gum (Kelzan S PLUS, manufactured by CP Kelco), 0.20 parts by weight of magnesium aluminum silicate (Veegum R, manufactured by Vanderbilt), and 0.20 parts by weight of a preservative (containing 1,2-benzisothiazolin-3-one as an active ingredient, Proxel GXL(S), manufactured by Lonza) were added to 8.1 parts by weight of ion-exchanged water, and stirring was continued for 2 hours to obtain mixture (D-2). Mixture (D-2) was added to the previously obtained suspension (D) and mixed, to obtain mixture (D-3). To this was added 5.0 parts by weight of a red pigment aqueous dispersion (Agrocer red 112 disp, manufactured by CLARIANT), 10.0 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex Corporation), and 22.5 parts by weight of ion-exchanged water, to obtain an aqueous suspension concentrate pesticidal composition of the present invention (hereinafter also referred to as composition (21) of the present invention).

[0097] Preparation Example 22: 40.0 parts by weight of oxazosulfil, 10.0 parts by weight of a mixture of 40% by weight of polyoxyethylene tristyrylphenyl ether phosphate potassium salt and 60% by weight of propylene glycol (Soprofol FLK, manufactured by Solvay Nicca), 0.20 parts by weight of a silicone antifoaming agent (Xiameter ACP-1500 Antifoam compound, manufactured by Dow Corning Toray Co., Ltd.), and 25.7 parts by weight of ion-exchanged water were mixed to obtain a mixture (E). The mixture (E) was wet-pulverized using a horizontal bead mill (DYNO-MILL KDL, manufactured by Willy A. Bachofen AG Maschinenfabrik) to obtain a suspension (E). Separately, 0.04 parts by weight of xanthan gum (Kelzan S PLUS, manufactured by CP Kelco), 0.08 parts by weight of magnesium aluminum silicate (Veegum R, manufactured by Vanderbilt), and 0.20 parts by weight of a preservative (containing 1,2-benzisothiazolin-3-one as an active ingredient, Proxel GXL(S), manufactured by Lonza) were added to 4.4 parts by weight of ion-exchanged water, and stirring was continued for 2 hours to obtain mixture (E-2). Mixture (E-2) was added to the previously obtained suspension (E) and mixed, to obtain mixture (E-3). To this was added 5.0 parts by weight of a red pigment aqueous dispersion (Agrocer red 112 disp, manufactured by CLARIANT), 10.0 parts by weight of an aqueous dispersion containing 60% by weight of unmodified natural rubber (ULACOL (registered trademark), manufactured by Resitex Corporation), and 4.38 parts by weight of ion-exchanged water, to obtain an aqueous suspension concentrate pesticidal composition of the present invention (hereinafter also referred to as composition (22) of the present invention).

[0098] Comparative Production Example 12 A mixture (A-3) was obtained by the same operation as in Production Example 16. 1.69 g of the mixture (A-3), 0.17 parts by weight of a red pigment aqueous dispersion (Agrocer Red 112 disp, manufactured by CLARIANT) and 1.62 parts by weight of water were added to obtain a comparative aqueous suspension concentrate pesticide composition (hereinafter also referred to as comparative composition (12)).

[0099] Comparative Production Example 13 Mixture (B-3) was obtained by the same operation as in Production Example 18. 1.83 g of mixture (B-3), 0.19 parts by weight of a red pigment aqueous dispersion (Agrocer Red 112 disp, manufactured by CLARIANT) and 1.46 parts by weight of ion-exchanged water were added to obtain a comparative aqueous suspension pesticide composition (hereinafter also referred to as comparative composition (13)).

[0100] Seed Treatment Example 7 100 g of dried rice seeds (dry unhulled rice) were placed in a vinyl bag, and 3.48 g of the composition of the present invention (16) was added and thoroughly mixed. After mixing, the mixture was air-dried until moisture was sufficiently removed to obtain seeds treated with the composition of the present invention (16).

[0101] Seed Treatment Example 8 100 g of dried rice seeds (dry unhulled rice) were placed in a vinyl bag, and 3.48 g of the composition of the present invention (17) was added and thoroughly mixed. After mixing, the mixture was air-dried until moisture was sufficiently removed to obtain seeds treated with the composition of the present invention (17).

[0102] Comparative Seed Treatment Example 7 100 g of dried rice seeds (dry unhulled rice) were placed in a vinyl bag, and 3.48 g of Comparative Composition (12) was added and thoroughly mixed. After mixing, the mixture was air-dried until moisture was sufficiently removed to obtain seeds treated with Comparative Composition (12).

[0103] Seed Treatment Example 9 100 g of dried rice seeds (dry unhulled rice) were placed in a vinyl bag, and 3.48 g of the composition of the present invention (18) was added and thoroughly mixed. After mixing, the mixture was air-dried until moisture was sufficiently removed to obtain seeds treated with the composition of the present invention (18).

[0104] Seed Treatment Example 10: 100 g of dried rice seeds (dry unhulled rice) were placed in a vinyl bag, and 3.48 g of the composition of the present invention (19) was added and thoroughly mixed. After mixing, the mixture was air-dried until moisture was sufficiently removed to obtain seeds treated with the composition of the present invention (19).

[0105] Seed Treatment Example 11: 100 g of dried rice seeds (dry unhulled rice) were placed in a vinyl bag, and 3.48 g of the composition of the present invention (20) was added and thoroughly mixed. After mixing, the mixture was air-dried until moisture was sufficiently removed to obtain seeds treated with the composition of the present invention (20).

[0106] Seed Treatment Example 12: 100 g of dried rice seeds (dry unhulled rice) were placed in a vinyl bag, and 3.48 g of the composition of the present invention (21) was added and thoroughly mixed. After mixing, the mixture was air-dried until moisture was sufficiently removed to obtain seeds treated with the composition of the present invention (21).

[0107] Seed Treatment Example 13: 1.67 parts by weight of the composition of the present invention (22) was added with 1.35 parts by weight of ion-exchanged water and mixed to prepare a seed treatment solution. 100 g of dried rice seeds (dry unhulled rice) was placed in a vinyl bag, and the entire amount of the prepared solution was added and thoroughly mixed. After mixing, the seeds were air-dried until moisture was sufficiently removed, and seeds treated with the composition of the present invention (22) were obtained.

[0108] Comparative Seed Treatment Example 8 100 g of dried rice seeds (dry unhulled rice) were placed in a vinyl bag, and 3.48 g of comparative composition (13) was added and thoroughly mixed. After mixing, the mixture was air-dried until moisture was sufficiently removed to obtain seeds treated with comparative composition (13).

[0109] Test Example 2: Evaluation of Water Resistance When the Pesticidal Active Ingredient is Inpirfluxam The amount of inpirfluxam adhering to the inpirfluxam-treated seeds prepared in the above Seed Treatment Examples 7-8 and Comparative Seed Treatment Example 7 was quantified by HPLC, and the amount of adhering X1 per 75 seeds was calculated. Seventy-five inpirfluxam-treated seeds were placed in a 100 mL screw tube, 8 mL of ion-exchanged water was added, and the seeds were stored in a constant temperature oven at 15°C for 24 hours. After storage, the ion-exchanged water was removed. After adding ion-exchanged water, storing in a constant temperature oven, and removing the ion-exchanged water four times in total, the amount of inpirfluxam adhering to the inpirfluxam-treated seeds was quantified by HPLC, and the amount of adhering X2 was calculated. The residual rate was calculated from the calculated amount of adhering using the following formula 2. [Math 2] Residual rate [%] = [X2] x 100 / [X1] Formula 2 The results are shown in Table 5 below. Here, the values ​​of X1 and X2 in the table represent the average values ​​of three repetitions.

[0110]

[0111] Test Example 3: Evaluation of Water Resistance When the Pesticide Active Ingredient is Oxazosulfil Oxazosulfil adhering to the oxazosulfil-treated seeds prepared in the above-mentioned Seed Treatment Examples 9 to 13 and Comparative Seed Treatment Example 8 was quantified by HPLC, and the amount of oxazosulfil adhering to 75 seeds, Y1, was calculated. Seventy-five oxazosulfil-treated seeds were placed in a 100 mL screw tube, 8 mL of ion-exchanged water was added, and the seeds were stored in a constant temperature incubator at 15°C for 24 hours. After storage, the ion-exchanged water was removed. After adding ion-exchanged water, storing in a constant temperature incubator, and removing the ion-exchanged water four times in total, the oxazosulfil adhering to the oxazosulfil-treated seeds was quantified by HPLC, and the amount of oxazosulfil adhering to the seeds, Y2, was calculated. The residual rate was calculated from the calculated amount of adhering using the following formula 2: [Math 3] Residual rate [%] = [Y2] x 100 / [Y1] Formula 3 The results are shown in Table 6 below. Here, the values ​​for Y1 and Y2 in the table represent the average of three repetitions.

[0112]

[0113] According to the present invention, an environmentally friendly aqueous pesticide composition for seed treatment containing natural rubber, a natural material, can be provided. The aqueous pesticide composition for seed treatment of the present invention is prevented from peeling from seeds, thereby improving handleability. Furthermore, runoff of the aqueous pesticide composition from treated seeds due to water such as rainfall or watering can be significantly prevented, and an aqueous pesticide composition having excellent pesticidal activity can be provided.

Claims

1. It contains pesticide active ingredients, surfactants, natural rubber, and water. The aforementioned pesticide active ingredient is at least one selected from the group consisting of clothianidin, impulfluxam, oxazosulfyl, mandestrobin, and etaboxam. An aqueous suspension pesticide composition characterized in that the weight ratio of the pesticide active ingredient to the natural rubber is 100:1 to 1:

2.

2. The aqueous suspension pesticide composition according to claim 1, wherein the weight ratio of the pesticide active ingredient to the natural rubber is 100:1 to 5:

2.

3. The aqueous suspension pesticide composition according to claim 1, wherein the aqueous pesticide composition contains 10 to 60% by weight of the pesticide active ingredient and 0.3 to 30% by weight of the natural rubber.

4. The aqueous suspension pesticide composition according to claim 1, wherein the aqueous pesticide composition is for seed treatment.

5. A method for producing an aqueous suspension pesticide composition according to any one of claims 1 to 4, comprising the step of adding natural rubber to a dispersion in which the pesticide active ingredient is emulsified or suspended, which contains a pesticide active ingredient, a surfactant, and water.

6. Seeds containing a pesticide active ingredient, a surfactant, and natural rubber, which are treated with the aqueous suspension pesticide composition according to any one of claims 1 to 4.

7. A method for producing seeds that retain a pesticide active ingredient, a surfactant, and natural rubber, comprising the step of treating the seeds with an aqueous suspension pesticide composition according to any one of claims 1 to 4.