JP5092291B2 - Aqueous suspension pesticide composition and method for producing the same - Google Patents

Description

The present invention relates to an aqueous suspended agricultural chemical composition and a method for producing the same.

In agricultural production, a mixture of two or more pesticidal active compounds is often used for various purposes.
For example, a salt of N-phosphonomethylglycine is an excellent compound as an active ingredient of a non-selective herbicide, but herbicides containing this compound as an active ingredient generally require time to develop a herbicidal effect. Herbicidal compositions mixed with other poorly water-soluble fast-acting herbicidal active ingredients (for example, protoporphyrinogen oxidase-inhibiting herbicidal active compounds) have been proposed (see, for example, Patent Document 1 and Patent Document 2).

On the other hand, an aqueous suspension pesticide composition that does not substantially contain a poorly water-soluble organic solvent and in which a poorly water-soluble pesticidal active ingredient is suspended in water is easy to measure the formulation when preparing a pesticide spray (dilution) solution. From the point of view of this, the point of safety at the time of storage, etc., it is a preferable dosage form for the user. Aqueous suspension pesticide compositions have recently been connected to bulk delivery systems (pesticide formulation tanks, water tanks, and pesticide spraying (dilution) solution tanks, which are used in large-scale farms, etc., by fixed pipes. It is particularly preferably used in systems for preparing spraying liquids).
However, in an aqueous suspension pesticide composition obtained by suspending a solid poorly water-soluble pesticide active ingredient at room temperature in a water continuous phase in which the readily water-soluble pesticide active ingredient is dissolved, the solid poorly water-soluble pesticide active ingredient It is not always easy to maintain a stable suspension state.

JP-A-5-208904 JP 2003-252704 A

The present invention is an aqueous suspension excellent in suspension stability, comprising a salt of N-phosphonomethylglycine and suspending a solid poorly water-soluble pesticidal active ingredient at 25 ° C. in a continuous water phase. It is an object to provide a pesticide composition.

As a result of various studies conducted by the present inventors to solve the above-mentioned problems, a salt of a poorly water-soluble pesticidal active ingredient that is solid at 25 ° C., a salt of N-phosphonomethylglycine that is a readily water-soluble pesticidal active ingredient, a thickener, An aqueous suspension pesticide composition comprising a specific two kinds of anionic surfactants and suspending a solid poorly water-soluble pesticide active ingredient in a solid water state at 25 ° C. in a solid state Thus, the stability of the suspended state of the poorly water-soluble agricultural chemical active ingredient was improved, and the present invention was completed.

That is, the present invention is as follows.
[Invention 1]
(A) a poorly water-soluble pesticide active ingredient that is solid at 25 ° C.,
(B) a salt of N-phosphonomethylglycine,
(C) polyoxyalkylene alkyl ether phosphate ester salt,
(D) polyoxyalkylene polystyrylphenyl ether phosphate ester salt,
An aqueous suspension pesticide composition comprising (e) a thickener and (f) water, and the poorly water-soluble pesticide active ingredient suspended in a water continuous phase in a solid state.
[Invention 2]
(A) 0.5-50 parts by weight of a poorly water-soluble pesticide active ingredient that is solid at 25 ° C.
(B) N-phosphonomethylglycine salt 5-60 parts by weight,
(C) 0.5-15 parts by weight of polyoxyalkylene alkyl ether phosphate ester salt,
(D) 0.5-10 parts by weight of polyoxyalkylene polystyrylphenyl ether phosphate ester salt,
(E) Thickener 0.01 to 10 parts by weight,
(F) 20 to 90 parts by weight of water, and (g) 0 to 30 parts by weight of formulation aids, and the aqueous composition in which the poorly water-soluble pesticidal active ingredient is suspended in a water continuous phase in a solid state Suspended agricultural chemical composition.
[Invention 3]
(A) 1-30 parts by weight of a poorly water-soluble pesticidal active ingredient that is solid at 25 ° C.
(B) 10 to 50 parts by weight of a salt of N-phosphonomethylglycine,
(C) 0.5-15 parts by weight of polyoxyalkylene alkyl ether phosphate ester salt,
(D) 0.5-10 parts by weight of polyoxyalkylene polystyrylphenyl ether phosphate ester salt,
(E) Thickener 0.01-5 parts by weight,
(F) 20 to 90 parts by weight of water, and (g) 0 to 20 parts by weight of an auxiliary for formulation, and the aqueous poorly water-soluble pesticidal active ingredient is suspended in a water continuous phase in a solid state. Suspended agricultural chemical composition.
[Invention 4]
(A) The aqueous suspended agricultural chemical composition according to any one of Inventions 1 to 3, wherein the poorly water-soluble agricultural chemical active ingredient that is solid at 25 ° C. is a herbicidal active ingredient that is solid at 25 ° C.
[Invention 5]
(A) The aqueous suspension pesticide composition according to any one of Inventions 1 to 3, wherein the poorly water-soluble pesticidal active ingredient that is solid at 25 ° C. is a protoporphyrinogen oxidase-inhibiting herbicidal active ingredient that is solid at 25 ° C.
[Invention 6]
(A) N- (7-fluoro-3,4-dihydro-3-oxo-4-prop-2-ynyl-2H-1,4-benzoxazine-6- is a poorly water-soluble pesticidal active ingredient that is solid at 25 ° C. Yl) The aqueous suspended agricultural chemical composition according to any one of Inventions 1 to 3, which is cyclohex-1-ene-1,2-dicarboxamide.
[Invention 7]
(E) The aqueous suspended agricultural chemical composition according to any one of Inventions 1 to 6, wherein the thickener is a water-soluble polysaccharide or an inorganic solid fine powder.
[Invention 8]
(E) The aqueous suspended agricultural chemical composition according to any one of Inventions 1 to 6, wherein the thickener is a water-soluble polysaccharide and an inorganic solid fine powder.
[Invention 9]
(G) The formulation aid is at least one formulation aid selected from the group consisting of antifreezing agents, antifoaming agents, preservatives, stabilizers, colorants, fragrances, efficacy enhancers, and safeners. The aqueous suspension pesticide composition described in any one of Inventions 1-8.
[Invention 10]
(A) containing a poorly water-soluble pesticidal active ingredient that is solid at 25 ° C., (c) polyoxyalkylene alkyl ether phosphate ester salt, (d) polyoxyalkylene polystyrylphenyl ether phosphate ester salt, and (f) water Subjecting the mixture to wet milling to prepare a suspension, and then mixing the suspension, (e) a thickener and (b) a salt of N-phosphonomethylglycine. A method for producing an aqueous suspension pesticide composition.
[Invention 11]
(A) A poorly water-soluble pesticidal active ingredient that is solid at 25 ° C., (c) polyoxyalkylene alkyl ether phosphate ester salt, (d) polyoxyalkylene polystyrylphenyl ether phosphate ester salt, (e-1) inorganic solid fine Subjecting the mixture containing the powder and (f) water to wet milling to prepare a suspension; and
Next, a method for producing an aqueous suspended agricultural chemical composition, comprising the step of mixing the suspension, (e-2) a water-soluble polysaccharide, and (b) a salt of N-phosphonomethylglycine.
[Invention 12]
(A) a water-insoluble pesticidal active ingredient solid at 25 ° C., (d) polyoxyalkylene polystyrylphenyl ether phosphate ester salt, (e-1) fine inorganic solid powder, and (f) a mixture containing water is wet. A step of preparing a suspension by grinding, and then the suspension, (c) polyoxyalkylene alkyl ether phosphate ester salt, (e-2) water-soluble polysaccharide, and (b) N-phospho. A method for producing an aqueous suspended agricultural chemical composition, comprising a step of mixing a salt of nomethylglycine.
[Invention 13]
A method for weeding weeds, comprising subjecting the weeds with a water-diluted aqueous suspension of the aqueous suspension pesticide composition according to any one of inventions 1 to 9.

The aqueous suspension pesticide composition of the present invention is an aqueous suspension pesticide composition obtained by suspending a solid poorly water-soluble pesticide active ingredient at 25 ° C. in a continuous water phase in which a salt of N-phosphonomethylglycine is dissolved. It is a product and has excellent suspension stability.

The aqueous suspension pesticide composition of the present invention (hereinafter referred to as the present aqueous suspension pesticide composition) comprises (a) a poorly water-soluble pesticide active ingredient that is solid at 25 ° C., and (b) N-phosphonomethylglycine. (C) polyoxyalkylene alkyl ether phosphate ester salt, (d) polyoxyalkylene polystyrylphenyl ether phosphate ester salt, (e) thickener, and (f) water, and optionally (g) An anti-freezing agent, wherein the poorly water-soluble pesticidal active ingredient is suspended as a solid particle in a solid state in a water continuous phase in which a salt of N-phosphonomethylglycine is dissolved. .

This aqueous suspension pesticide composition contains (a) a poorly water-soluble pesticide active ingredient that is solid at 25 ° C. (hereinafter referred to as this water-insoluble pesticide active ingredient). The present poorly water-soluble pesticidal active ingredient is an agrochemical active ingredient that is solid at 25 ° C. and has a water solubility at 25 ° C. of 10 g / L or less, and preferably an agrochemical active ingredient having a melting point of 60 ° C. or higher.
Examples of the water-insoluble pesticide active ingredient include a water-insoluble pesticide active ingredient that is solid at 25 ° C. with a specific gravity of 1.2 to 3.0, such as a water-insoluble insecticidal active ingredient, a water-insoluble fungicidal active ingredient, and a water-insoluble herbicidal activity. Ingredients and poorly water-soluble plant growth regulators.

Examples of the poorly water-soluble insecticidal active ingredient include abamectin, acrinathrin, amitraz, azadirachtin, azamethiphos, azinphosmethyl, azocyclotin, bensultap, bifenthrin, bromopropyrate, buprofezin, chlorfenapyr, chlorfenson, chlorfluazuron, clofentezene, coumaphos , Cyfluthrin, β-cyfluthrin, cypermethrin, α-cypermethrin, θ-cypermethrin, deltamethrin, diafenthiuron, dicofol, diflubenzuron, endosulfan, esfenvalerate, etoxazole, phenazaquin, fenbutatin oxide, phenoxycarb, fenpyroximate , Fipronil, fluazuron, flucycloxuron, flufenoxuron, halofenozide, hexa Lumron, hexithiazox, hydramethylnon, rufenuron, methiocarb, methoxychlor, milbemectin, novallon, pentachlorophenol, pyridaben, rotenone, sulfuramide, tebufenozide, tebufenpyrad, tebupyrimphos, teflubenzuron, tetrachlorbinphos, tetradiphone, thiodicarb, trometron And trimetacarb.

Examples of the poorly water-soluble bactericidal active ingredient include, for example, azoxystrobin, benalaxyl, benomyl, viteltanol, bromconazole, captahol, captan, carbendazim, quinomethionate, chlorothalonil, clozolinate, cyprodinil, diclofluanid, diclofene, diclomedin, Dichlorane, Diclocimet, Dietofencarb, Dimethomorph, Diniconazole, Dithianon, Epoxiconazole, Famoxadone, Phenarimol, Fenbuconazole, Fenfram, Fenpiclonyl, Fentine, Fluazinam, Fludioxonyl, Fluorimide, Fluquinconazole, Fursulfanamide, Flutulanyl, Holpet, Hexachlorobenzene Hexaconazole, imibenconazole, ipoconazole, ip Dione, cresoxime methyl, manzeb, manneb, mepanipyrim, mepronyl, metconazole, methylam, nickel bis (dimethyldithiocarbamate), nuarimol, oxine copper, oxophosphate, pencyclon, phthalide, prosimidone, propineb, quintozene, sulfur, tebuconazole, technazene, technazene Examples include tifluzamide, thiophenate methyl, thiram, tolcrofosmethyl, tolylfluanid, triadimethone, triadimenol, triazoxide, triphorin, triticonazole, vinclozolin, dineb and dilam.

Examples of poorly water-soluble herbicidal active ingredients include protoporphyrinogen oxidase-inhibiting herbicidal active ingredients such as azaphenidin, bifenox, sulfentrazone, pyraflufenethyl, full microlac pentyl, flumioxazin, aclonifen, atrazine, bensulfuron Methyl, benzophenap, bromobutide, bromophenoxime, chloromethoxyphene, chlorobromulone, chlorimuronethyl, chloronitrophene, chlorotolulone, chlortar dimethyl, clomeprop, dimeron, desmedifam, diclobenil, diflufenican, dimeflon, dinitramine, diuron, etame Tosulfuron methyl, phenoxaprop ethyl, framprop methyl, flazasulfuron, flumeturum, flutiaset Flufluxam, fluridone, flulutamon, isoproturon, isoxaben, isoxapyrihop, lactofen, lenacyl, linuron, mefenacet, metabenzthiazulone, methozazuron, naproanilide, nebulon, norflurazon, oryzalin, oxadiazone, oxyfluorfen, fenmedifam, Examples include prodiamine, promethrin, propazine, propizzamide, pyrazolinate, pyrazosulfuronethyl, pyributycarb, quinclolac, quizalofopethyl, rimsulfuron, ciduron, simazine, terbutyrazine, terbutrin, thiazopyr, tracoxidim, and trietadine.

Examples of the poorly water-soluble plant growth regulating active ingredient include 6-benzylaminopurine, cyclanilide, flumetraline, forchlorphenuron, inabenfide, 2- (1-naphthyl) acetamide, paclobutrazole, N-phenylphthalamic acid , Thidiazuron, and uniconazole.

In the aqueous suspension pesticide composition, the slightly water-insoluble pesticidal active ingredient may be partially dissolved in the water continuous phase, but at least 80% by weight of the water-insoluble pesticidal active ingredient is water. It exists in a solid state in the continuous phase.
The volume median diameter of the water-insoluble pesticide active ingredient in the aqueous suspension pesticide composition is usually 20 μm or less, preferably 0.1 to 10 μm.
The volume median diameter is a value calculated by analyzing images of a large number of particles measured by a laser diffraction diffraction method based on the Mie scattering theory. As a specific measuring machine, Mastersizer 2000 (Malvern Company name). Volume median diameter (Volume Median Diameter = VMD) means a value in which the volume sum of particles smaller than this value and the volume sum of particles larger than this value are each 50% of the total volume sum.
The water-insoluble pesticide active ingredient is usually contained in the aqueous suspension pesticide composition at a ratio of 0.5 to 50 w / v%.

The aqueous suspension pesticide composition contains (b) a salt of N-phosphonomethylglycine (hereinafter referred to as N-phosphonomethylglycine salt) as a water-soluble pesticide active ingredient.
N-phosphonomethylglycine salt is, for example, an alkali metal salt (for example, lithium salt, sodium salt, potassium salt), trialkylsulfonium salt (for example, trimethylsulfonium salt), ammonium salt (for example, isopropylammonium salt) of N-phosphonomethylglycine. And salts acceptable as agricultural chemicals such as monoalkylammonium salts having 1 to 14 carbon atoms such as salts, dialkylammonium salts having 2 to 14 carbon atoms such as diethylammonium salts, and simple ammonium salts). As the N-phosphonomethylglycine salt, commercially available products (for example, N-phosphonomethylglycine ammonium salt, N-phosphonomethylglycine trimesium salt) can be used, and can also be produced by a known method. N-phosphonomethylglycine salt is dissolved in the aqueous continuous pesticide composition of the present invention at a ratio of usually 5 to 60 w / v%, and is dissolved in the aqueous continuous phase of the present aqueous suspension pesticide composition. Is done.

The weight ratio of the water-insoluble pesticide active ingredient and N-phosphonomethylglycine salt contained in the aqueous suspension pesticide composition is usually from 1:16 to 1: 0.1, preferably 1: 3. A ratio of ˜1: 1.

The present aqueous suspension pesticide composition generally contains 5.5 to 60.5 w / v% of the water-insoluble pesticide active ingredient and N-phosphonomethylglycine salt in a total amount.

The aqueous suspension pesticide composition comprises (c) a polyoxyalkylene alkyl ether phosphate ester salt (hereinafter referred to as a first anionic surfactant) and (d) a polyoxyalkylene polystyrylphenyl ether phosphate ester. Salt (hereinafter referred to as a second anionic surfactant).

［式中、Ｒはアルキル基（例えば、Ｃ４〜Ｃ１８アルキル基）を表し、Ａはアルキレン基（例えば、エチレン基、プロピレン基）を表し、ｎ及びｍはそれぞれ独立して２〜２０の整数を表す。］
で示されるリン酸エステルと塩基（例えば、アルカリ金属水酸化物、アミン類等）とから生じる塩である。 Polyoxyalkylene alkyl ether phosphate ester salt

[Wherein, R represents an alkyl group (for example, C4-C18 alkyl group), A represents an alkylene group (for example, ethylene group, propylene group), and n and m each independently represents an integer of 2-20. Represent. ]
Is a salt formed from a phosphate ester represented by formula (II) and a base (for example, alkali metal hydroxide, amines, etc.).

［式中、Ａｒはポリスチリルフェニル基（例えば、トリスチリルフェニル基、ジスチリルフェニル基を表し、Ａはアルキレン基（例えば、エチレン基、プロピレン基）を表し、ｎ及びｍはそれぞれ独立して２〜２０の整数を表す。）］
で示されるリン酸エステルと塩基（例えば、アルカリ金属水酸化物、アミン類等）とから生じる塩である。
上記のリン酸エステルの塩としては、例えばアルカリ金属（ナトリウム、カリウム等）、アルカリ土類金属（カルシウム等）またはアンモニウム（NH₄、i-PrNH₃等）等の界面活性剤として許容される塩が挙げられる。 Polyoxyalkylene polystyrylphenyl ether phosphate ester salt

[In the formula, Ar represents a polystyrylphenyl group (for example, tristyrylphenyl group, distyrylphenyl group, A represents an alkylene group (for example, ethylene group, propylene group), and n and m are each independently 2) Represents an integer of ~ 20)]
Is a salt formed from a phosphate ester represented by formula (II) and a base (for example, alkali metal hydroxide, amines, etc.).
Examples of the salt of the above-mentioned phosphate ester include salts acceptable as surfactants such as alkali metals (sodium, potassium, etc.), alkaline earth metals (calcium, etc.) or ammonium (NH ₄ , i-PrNH ₃ etc.). Is mentioned.

Commercially available products can be used for the two types of anionic surfactants used in the aqueous suspension pesticide composition. Examples of such commercially available products include the following.
Polyoxyalkylene alkyl ether phosphate ester salts include polyoxyethylene alkyl ether phosphate ammonium salt (Jeronol CF / AR, Rhodia Nikka), polyoxyethylene oleyl ether phosphate sodium salt (Phosphanol RD- 720N, manufactured by Toho Chemical).
As polyoxyalkylene polystyrylphenyl ether phosphate ester salt, polyoxyethylene tristyrylphenyl ether phosphate potassium salt (Soprofall FLK, manufactured by Rhodia Nikka).

The anionic surfactant used in the aqueous suspension pesticide composition is usually the sum of the first anionic surfactant and the second anionic surfactant in the aqueous suspension agrochemical composition. 3 to 20 w / v%, preferably 5 to 15 w / v%. The ratio of the first anionic surfactant to the second anionic surfactant is usually 97: 3 to 3:97, preferably 75:25 to 25:75. The first anionic surfactant is usually 0.5 to 15 w / v% and the second anionic surfactant is usually 0.5 to 10 w / v% in the aqueous suspension pesticide composition. Contained.

This aqueous suspension agricultural chemical composition contains (e) a thickener (hereinafter referred to as the present thickener). Examples of the thickener include water-soluble polymers (for example, water-soluble polysaccharides and water-soluble synthetic polymers) and inorganic solid fine powders (for example, silica, magnesium silicate, aluminum silicate, magnesium aluminum silica). Acid salt, bentonite, smectite, hectorite, aluminum oxide), preferably a plurality of types of thickeners.
Examples of the water-soluble polysaccharide include xanthan gum, gum arabic, lamb zan gum, locust bean gum, carrageenan, welant gum, lignin sulfonic acid, starch, carboxymethyl cellulose salt and the like. These water-soluble polysaccharides are commercially available. For example, Kelzan S (manufactured by CP Kelco), Kelsan ASX (manufactured by CP Kelco) as sansan gum, and Serogen HE-90F (Daiichi Kogyo Seiyaku) as carboxymethylcellulose salts. Serogen HE-600F (Daiichi Kogyo Seiyaku) can be used.
Examples of the water-soluble synthetic polymer include polyvinyl pyrrolidone, carboxyvinyl polymer, sodium polyacrylate, and the like.
As silica which is an inorganic solid fine powder, the primary particle diameter is usually preferably 50 nm or less. Such silica is commercially available. For example, Aerosil 200 (manufactured by Degussa) which is a dry silica having a primary particle diameter of 20 nm or less and a specific surface area of 200 cm ² / g, Aerosil which is a mixture of Aerosil 200 and aluminum oxide. COK-84 (manufactured by Degussa) can be used.

In the present aqueous suspension agricultural chemical composition, it is preferable to use water-soluble polysaccharides or inorganic solid fine particles as the thickener from the viewpoint of formulation stability, and water-soluble polysaccharides and inorganic solid fine particles are used as the thickener. More preferably. Moreover, it is preferable to use xanthan gum as the water-soluble polysaccharide, and it is more preferable to use silica or a mixture of silica and aluminum oxide in combination.
In the aqueous suspension agricultural chemical composition, the water-soluble polysaccharide used as the thickener is preferably a thickener having a small change in viscosity with respect to the pH change of the aqueous phase. Specifically, in a water-soluble polysaccharide used as a thickener, when this is dissolved in water having different liquidity, the change in viscosity of a weakly basic (pH 9) to weakly acidic (pH 5) aqueous solution is 1 to 1. It is preferable to use water-soluble polysaccharides in the range of 3 times. As such a water-soluble polysaccharide, commercially available Kelzan ASX (manufactured by CP Kelco) and the like can be used.

In the present aqueous suspension agricultural chemical composition, the present thickener is usually contained in a total amount of 0.01 to 10 w / v%, preferably 0.1 to 5 w / v%.
The viscosity of the aqueous suspension pesticide composition is 500 to 3000 mPa.s at 20 ° C. s (Toki Sangyo RB80 type viscometer Spindle No. 2 6 rpm) is preferable.

The aqueous suspension pesticide composition contains (f) water and is usually contained in a proportion of 20 to 90 w / v%, preferably 30 to 70 w / v%. As water, ion-exchanged water is preferably used.

In addition to the first anionic surfactant, the second anionic surfactant and the thickener, the aqueous suspension pesticide composition, if necessary, an antifreezing agent, an antifoaming agent, a preservative, and a stabilizer. (G) formulation aids such as colorants, fragrances, potency enhancers, safeners, and the like can be included. In this aqueous suspension pesticide composition, the formulation aid is usually contained in a proportion of 0 to 30 w / v%, preferably 0 to 20 w / v%.
As the antifreezing agent that may be contained in the aqueous suspension pesticide composition, for example, a water miscible monoalcohol such as propanol, a water miscible polyol such as ethylene glycol, propylene glycol, or the like is preferably used. When an antifreezing agent is used, the aqueous suspension pesticide composition usually contains the antifreezing agent in a ratio of 0.5 to 30 w / v%, preferably 1 to 20 w / v%.

Antifoaming agents that may be contained in the aqueous suspension pesticide composition include, for example, Anti-Form C (trade name of Dow Corning), Anti-Form C emulsion (trade name of Dow Corning), Rhodosil 454 (trade name of Rhodia), Rhodesyl Antiform 432 (product of Rhodia), TSA730 (tradename of Toshiba Silicone), TSA731 (tradename of Toshiba Silicone), TSA732 (tradename of Toshiba Silicone) , And fluorine-based antifoaming agents such as YMA6509 (trade name of Toshiba Silicone) and fluorine dewetting PL80 (trade name of Clariant). When an antifoaming agent is used, the antifoaming agent is usually contained in the aqueous suspension pesticide composition in a proportion of 0.001 to 3 w / v%.

Examples of the preservative that may be contained in the aqueous suspension pesticide composition include p-hydroxybenzoic acid ester, salicylic acid derivative, and isothiazoline-3-one derivative. When the preservative is used, the preservative is usually contained in the aqueous suspension pesticide composition at a ratio of 0.01 to 5 w / v%, preferably 0.05 to 3 w / v%.
Examples of the stabilizer that may be contained in the aqueous suspension pesticide composition include, for example, antioxidants (phenolic antioxidants, amine-based antioxidants, phosphorus-based antioxidants, sulfur-based antioxidants, etc. ), UV absorbers (benzotriazole-based agents, benzophenone-based UV absorbers, benzoate-based UV absorbers, cyanoacrylate-based UV absorbers, salicylic acid-based UV absorbers, hindered amine-based UV absorbers, etc.).
Examples of the colorant that may be contained in the aqueous suspension agricultural chemical composition include rhodamines such as rhodamine B, and tar pigments such as yellow No. 4, blue No. 1, and red No. 2.
Furthermore, the present aqueous suspension pesticide composition may contain other surfactants of the first anionic surfactant and the second anionic surfactant. As such surfactants, For example, polyoxyalkylene alkyl ether (polyoxyethylene alkyl ether etc.), polyoxyalkylene alkenyl ether (polyoxyethylene alkenyl ether etc.), polyoxyalkylene alkyl phenyl ether, polyoxyalkylene castor oil, polyoxyalkylene hydrogenated castor oil, Nonionic surfactants such as polyoxyalkylene fatty acid esters, glycerin fatty acid esters, and sorbitan fatty acid esters are exemplified. When using other surfactant, the content is 10 w / v% or less with respect to this aqueous suspension pesticide composition.

This aqueous suspension pesticide composition is an aqueous suspension pesticide composition in which the water-insoluble pesticide active ingredient is suspended in a water continuous phase in a solid state. In the aqueous suspension pesticide composition, the liquid phase is substantially only the water continuous phase. That is, in the aqueous suspension pesticide composition of the present invention, the water-insoluble pesticide active ingredient is substantially surrounded by a water continuous phase in which the N-phosphonomethylglycine salt is dissolved, and is in a solid fine particle state. It means to exist. In this aqueous suspension pesticide composition, droplets of a poorly water-soluble organic solvent are dispersed in a continuous water phase, and further, a solid poorly water-soluble active ingredient is in a solid state in the fine droplets of the poorly water-soluble organic solvent. It is clearly distinguished from the so-called suspoemulsion formulation contained.
This aqueous suspension pesticide composition does not substantially contain a poorly water-soluble organic solvent (water solubility at 20 ° C. is 10 g / L or less).

The present aqueous suspension pesticide composition comprises a N-phosphonomethylglycine salt, a first anionic surfactant, a second anionic surfactant, a thickener, and a water-insoluble pesticide in a solution containing water. It can be produced by uniformly suspending the particles of the active ingredient.
The water-insoluble pesticidal active ingredient is usually a particle having a volume median diameter of 20 μm or less. The water-insoluble pesticidal active ingredient having a volume median diameter of 20 μm or less may be prepared by a dry pulverization method, but is preferably prepared by wet pulverization. In addition, when the poorly water-soluble pesticide active ingredient is prepared by wet pulverization to a volume median diameter of 20 μm or less, the aqueous suspended pesticidal composition is preferably produced, for example, by the following method. .

First, the present poorly water-soluble agricultural chemical active ingredient is added to a mixture containing the first anionic surfactant, the second anionic surfactant and water, and this is subjected to wet pulverization. A suspension of is prepared. As a wet pulverization method, a rigid bead such as glass beads is added to a mixture containing the water-insoluble pesticide active ingredient, the first anionic surfactant, the second anionic surfactant and water, and the mixture is stirred. Is mentioned. Specifically, a wet mill such as a dyno mill or a wet grinder such as a sand grinder can be used.
Next, a thickener and N-phosphonomethylglycine salt are added to the suspension of the water-insoluble pesticidal active ingredient, and water is further added as necessary. Moreover, you may add anti-freezing agents and formulation adjuvants, such as antiseptic | preservative, a stabilizer, and a coloring agent. This mixture is sufficiently stirred in a timely manner so that the whole is uniform, thereby obtaining the aqueous suspension pesticide composition.

Preferably, when wet-grinding the water-insoluble pesticidal active ingredient, a thickener of an inorganic solid fine powder is added, and the water-soluble polysaccharide is added to the suspension of the water-insoluble pesticidal active ingredient after grinding. Add thickener.
Further, in some cases, the water-insoluble pesticide active ingredient is added to a mixture containing the second anionic surfactant and water, and this is subjected to wet grinding to prepare a suspension of the water-insoluble pesticide active ingredient. To do. Next, the first anionic surfactant, thickener and N-phosphonomethylglycine salt are added to the suspension of the poorly water-soluble pesticide active ingredient, and water is added as necessary to form the aqueous suspension. A pesticide composition is obtained.

The aqueous suspension pesticide composition is preferably (b) 5 to 60 parts by weight of N-phosphonomethylglycine salt,
(C) 0.5-15 parts by weight of the first anionic surfactant, (d) 0.5-10 parts by weight of the second anionic surfactant, (e) 0.01-10 parts by weight of the present thickener. (F) 20 to 90 parts by weight of water and (g) 0 to 30 parts by weight of an antifreezing agent are added to the water continuous phase. An aqueous suspension pesticide composition suspended in a solid state,
More preferably (b) N-phosphonomethylglycine salt 10-50 parts by weight,
(C) 1st anionic surfactant 0.5-15 weight part, (d) 2nd anionic surfactant 0.5-10 weight part, (e) this thickener 0.01-5 weight part , (F) 20 to 90 parts by weight of water, and (g) a water continuous phase substantially consisting of 0 to 20 parts by weight of the antifreezing agent. It is an aqueous suspension pesticide composition suspended in.

This aqueous suspension pesticide composition is diluted with water just before application, for example, by applying it to the soil or plant at a sufficient application rate so that the active ingredient of the pesticidal active ingredient gives the desired effect. Can be used.

In the aqueous suspension pesticide composition, when the water-insoluble pesticide active ingredient is flumioxazin, the aqueous suspension pesticide composition is used for upland, fallow land, paddy paddy, orchard, pasture, lawn. It can be used as a herbicide on land, forests, non-agricultural land, etc. The application rate in this case varies depending on the mixing ratio of flumioxazin and N-phosphonomethylglycine salt, the type of target weed, the weather conditions, etc., but the total active ingredient amount per 1 ha is usually 100 to 5000 g, preferably 200 ~ 3000g. When using it, the prescribed amount is usually diluted with 100 to 1000 L of water per hectare and applied. The weeds can be weeded by a foliage treatment such as spraying the aqueous suspension pesticide composition diluted with water directly on the target weeds.
If necessary, an auxiliary agent such as a spreading agent may be added to the diluted solution, and examples of the auxiliary agent include polyoxyethylene resin acid, lignin sulfonate, paraffin, and petroleum oil. Agridex (Crop oil concentrate, manufactured by Helena) can be used as a commercially available adjuvant.

Examples of the weeds that can be weeded with this aqueous suspension pesticide composition whose active ingredient of poorly water-soluble pesticide is flumioxazin include, for example, buckwheat, sanaetade, swordfish, velvet, velvet, white-crowned, whitewood, blue-headed dragonfly, Japanese radish, noharagarashi, nazuna, rapeseed, USA Tsunosanane, Ebisu rush, Ichibibi, American stag beetle, Field pansy, Yaemgura, American morning glory, Marva morning glory, Atlantic convolvulus, Japanese blackbird, Hotokenoza, White-bellied morning glory, Inu's owl, Golden-bellied winged tiger, Blue-tailed tiger, Red-tailed hawk , Broadleaf weeds such as giant pellucidae, duckweed, dogfish, enokirogusa, akinoenokorogusa, barnyard beetle, sparrow beetle, sparrownotet Cormorant, blackgrass, oats, oats, Johnson grass, quackgrass, grass weeds and dayflower such as downy brome, commelinaceae weeds such as Malva dayflower, Cyperus Iria, purple nutsedge, Cyperaceae weeds such as yellow nutsedge and the like.

Hereinafter, the present invention will be described in more detail with reference to production examples and the like, but the present invention is not limited to these examples.

Production Example 1
(1) In a 500 ml SUS beaker, 83.0 g of deionized water and polyoxyethylene tristyrylphenyl ether phosphate ester potassium salt (manufactured by Rhodia Nikka, trade name: Soprophor FLK; 40% surfactant, 55.2 g of propylene glycol (60%) was added and stirred until dissolved. Next, 1.1 g of silicone emulsion (antifoaming agent, manufactured by Dow Corning, trade name: Antifoam C), silica / aluminum oxide mixture (thickener, manufactured by Degussa, trade name: Aerosil COK-84) 5 g and 55.2 g of flumioxazin (content 99.8%) were added, and 300 g of 1.0 mm diameter glass beads were further added. The mixture was stirred for 2 hours at 2000 rpm with a Lab-stirrer (manufactured by Yamato Kagaku), and the glass beads were scraped with a nylon mesh to obtain a flumioxazin suspension. When the obtained flumioxazin suspension was measured with Mastersizer 2000 (Malvern), the volume median diameter of flumioxazin was 2.0 μm.
(2) In a 500 ml SUS beaker, 297.6 g of deionized water and 2.4 g of acid staple xanthan gum (manufactured by CP KELCO, trade name: Kelzan ASX) are added and stirred using a Lab-stirrer. A thickener aqueous solution was obtained.
(3) In a 300 ml SUS beaker, 72.4 g of the flumioxazin suspension of (1) and polyoxyethylene alkyl ether phosphate ammonium salt (manufactured by Rhodia Nikka, trade name: Geronol CF / AR, surfactant) 17.0 g) was added, and the mixture was stirred at 3000 rpm for 5 minutes at room temperature using a homogenizer (manufactured by KINEMATICA, POLYTORON). Next, 30 g of the thickener aqueous solution (2) was added and stirred at room temperature at 3000 rpm for 5 minutes. Next, 87.1 g of an aqueous solution of isopropylamine salt of glyphosate (content 62%) and deionized water were added so that the total amount was 200 ml, and the mixture was stirred at 3000 rpm for 10 minutes at room temperature. A pesticide composition 1 was obtained.

Production Example 2
The same procedure as in Production Example 1 was carried out except that 16.0 g of polyoxyethylene alkyl ether phosphate ester ammonium salt was changed to 32.0 g, and 30 g of the thickener aqueous solution (2) was changed to 25 g. 2 was obtained.

Production Example 3
In Production Example 1, an aqueous suspension pesticide composition 3 was obtained in the same manner except that 30 g of the thickener aqueous solution (2) was changed to 35 g.

Production Example 4
In Production Example 1, an aqueous suspension pesticide composition 4 was obtained in the same manner except that 30 g of the thickener aqueous solution (2) was changed to 40 g.

Production Example 5
(1) In a 500 ml SUS beaker, 82.4 g of deionized water and 54.9 g of polyoxyethylene tristyrylphenyl ether phosphate potassium salt (manufactured by Rhodia, trade name: Soprophor FLK) are added and dissolved. Stir until Next, 1.1 g of a silicone emulsion (manufactured by Dow Corning, trade name: Antifoam C), 6.6 g of a silica / aluminum oxide mixture (manufactured by Degussa, trade name: Aerosil COK-84) and flumioxazin (content 99) 0.2%) 54.9 g was added, and 300 g of 1.0 mm diameter glass beads were further added. The mixture was stirred for 2 hours at 2000 rpm with a Lab-stirrer (manufactured by Yamato Kagaku), and the glass beads were scraped with a nylon mesh to obtain a flumioxazin suspension. When the obtained flumioxazin suspension was measured with Mastersizer 2000 (manufactured by Malvern), the volume median diameter was 1.9 μm.
(2) In a 500 ml SUS beaker, 297.6 g of deionized water and 2.4 g of acid staple xanthan gum (manufactured by CP KELCO, trade name: Kelzan ASX) are added and stirred using a Lab-stirrer. A thickener aqueous solution was obtained.
(3) To a 300 ml SUS beaker, add 72.8 g of the flumioxazin suspension of (1) and 16.0 g of polyoxyethylene alkyl ether phosphate ammonium salt (trade name: Jeronol CF / AR, manufactured by Rhodia). Then, using a homogenizer (KINEMATICA, POLYTORON), the mixture was stirred at room temperature at 3000 rpm for 5 minutes. Next, 30 g of the thickener aqueous solution (2) was added, and the mixture was stirred at 3000 rpm for 5 minutes at room temperature. Next, 87.1 g of an aqueous solution of isopropylamine salt of glyphosate (content 62%) and deionized water were added so that the total amount was 200 ml, and the mixture was stirred at 3000 rpm for 10 minutes at room temperature. A pesticide composition 5 was obtained.

Production Example 6
In Production Example 5, an aqueous suspension pesticide composition 6 was obtained in the same manner except that 30 g of the thickener aqueous solution (2) was changed to 35 g.

Production Example 7
In Production Example 5, an aqueous suspension pesticide composition 7 was obtained in the same manner except that 30 g of the thickener aqueous solution (2) was changed to 40 g.

Production Example 8
(1) To a 500 ml SUS beaker, 82.0 g of deionized water and 54.6 g of polyoxyethylene tristyrylphenyl ether phosphate ester potassium salt (trade name: Soprofol FLK, manufactured by Rhodia) were added. Stir until dissolved. Next, 1.1 g of a silicone emulsion (manufactured by Dow Corning, trade name: Antifoam C), 7.7 g of a silica / aluminum oxide mixture (trade name: Aerosil COK-84, manufactured by Degussa) and flumioxazin (content 99) .2%) 54.6 g was added, and 300 g of 1.0 mm diameter glass beads were added, and the mixture was stirred for 1.5 hours using a three-one motor stirrer to scrape the glass beads to obtain a flumioxazin suspension. It was. When the obtained flumioxazin suspension was measured with Mastersizer 2000 (Malvern), the volume median diameter of flumioxazin was 2.0 μm.
(2) In a 500 ml SUS beaker, 297.6 g of deionized water and 2.4 g of acid staple xanthan gum (manufactured by CP KELCO, trade name: Kelzan ASX) are added and stirred using a Lab-stirrer. A thickener aqueous solution was obtained.
(3) To a 300 ml SUS beaker, add 73.2 g of the flumioxazin suspension from (1) and 16.0 g of polyoxyethylene alkyl ether phosphate ammonium salt (trade name: Jeronol CF / AR, manufactured by Rhodia). Then, using a homogenizer (KINEMATICA, POLYTORON), the mixture was stirred at room temperature at 3000 rpm for 5 minutes. Next, 30 g of the thickener aqueous solution (2) was added and stirred at room temperature at 3000 rpm for 5 minutes. Next, 87.1 g of an aqueous solution of isopropylamine salt of glyphosate (content 62%) and deionized water were added so that the total amount became 200 ml, and stirred at 3000 rpm for 10 minutes at room temperature to form an aqueous suspension. Agrochemical composition 8 was obtained.

Production Example 9
In Production Example 8, an aqueous suspension pesticide composition 9 was obtained in the same manner except that 30 g of the thickener aqueous solution (2) was changed to 35 g.

Production Example 10
(1) In a 500 ml SUS beaker, 68.0 g of deionized water, 45.2 g of polyoxyethylene tristyrylphenyl ether phosphate ester potassium salt (manufactured by Rhodia, trade name: Soprophor FLK) and polyoxyethylene 36.2 g of alkyl ether phosphate ester ammonium salt (Rhodia, trade name: Geronol CF / AR) was added and stirred until dissolved. Next, 0.9 g of silicone emulsion (manufactured by Dow Corning, trade name: Antifoam C), 4.5 g of silica / aluminum oxide mixture (trade name: Aerosil COK-84), and flumioxazin (content 99) .2%) 45.2 g was added, and 300 g of 1.0 mm diameter glass beads were added, and the mixture was stirred for 2 hours using a three-one motor stirrer to scrape the glass beads to obtain a flumioxazin suspension. When the obtained flumioxazin suspension was measured with Mastersizer 2000 (Malvern), the volume median diameter of flumioxazin was 2.0 μm.
(2) In a 500 ml SUS beaker, 297.6 g of deionized water and 2.4 g of acid staple xanthan gum (manufactured by CP KELCO, trade name: Kelzan ASX) are added and stirred using a Lab-stirrer. A thickener aqueous solution was obtained.
(3) Add 88.4 g of the flumioxazin suspension of (1) and 30 g of the thickener aqueous solution of (2) to a 300 ml SUS beaker, and use a homogenizer (manufactured by KINEMATICA, POLYTORON) at 3000 rpm / Stir for 5 minutes. Next, 87.1 g of an aqueous solution of isopropylamine salt of glyphosate (content 62%) and deionized water were added so that the total amount was 200 ml, and the mixture was stirred at 3000 rpm for 10 minutes. 10 was obtained.

Production Example 11
In Production Example 10, an aqueous suspension pesticide composition 11 was obtained in the same manner except that 30 g of the thickener aqueous solution (2) was changed to 40 g.

Production Example 12
(1) 35.2 parts of deionized water, polyoxyethylene tristyrylphenyl ether phosphate ester potassium salt (made by Rhodia, trade name: Soprofall FLK), 25.4 parts, silicone emulsion (made by Dow Corning, Product name: Antiform C emulsion) 0.3 part and flumioxazin (content 99.2%) 25.4 parts of a mixture, 130 parts of 1.0 mm diameter glass beads were added, and using a three-one motor stirrer, The mixture was stirred for 2 hours, and the glass beads were scraped to obtain a flumioxazin suspension. When the obtained flumioxazin suspension was measured with Mastersizer 2000 (Malvern), the volume median diameter of flumioxazin was 2.0 μm.
(2) In the flumioxazin suspension of (1), 0.2 part of a silicone emulsion (trade name: Antifoam C emulsion, manufactured by Dow Corning), polyoxyethylene alkyl ether phosphate ammonium salt (manufactured by Rhodia) , Trade name: Jeronol CF / AR) 87.5 parts, silica / aluminum oxide mixture (manufactured by Degussa, trade name: Aerosil COK-84) 25.4 parts, aqueous solution of isopropylamine salt of glyphosate (content 62%) 655 9 parts and 95.4 parts of deionized water were added and stirred for 10 minutes at 5000 rpm at room temperature using a homogenizer (manufactured by KINEMATICA, POLYTORON) to obtain an aqueous suspended agricultural chemical composition 12 It was.

Production Example 13
(1) 35.2 parts of deionized water, polyoxyethylene tristyrylphenyl ether phosphate ester potassium salt (made by Rhodia, trade name: Soprofall FLK), 25.4 parts, silicone emulsion (made by Dow Corning, Product name: Antiform C emulsion) To a mixture of 0.3 part and flumioxazin 25.4 parts (content 99.2%), add 130 parts of 1.0 mm diameter glass beads and use a three-one motor stirrer. The mixture was stirred for 2 hours, and the glass beads were scraped to obtain a flumioxazin suspension. When the obtained flumioxazin suspension was measured with Mastersizer 2000 (Malvern), the volume median diameter of flumioxazin was 2.0 μm.
(2) In the flumioxazin suspension of (1), 0.2 part of a silicone emulsion (trade name: Antifoam C emulsion, manufactured by Dow Corning), polyoxyethylene alkyl ether phosphate ammonium salt (manufactured by Rhodia) , Trade name: Geronol CF / AR) 52.5 parts, silica / aluminum oxide mixture (manufactured by Degussa, trade name: Aerosil COK-84), 25.4 parts, aqueous solution of isopropylamine salt of glyphosate (content 62%) 655 .9 parts, 27.1 parts of polypropylene glycol and 152.7 parts of deionized water were added, and the mixture was stirred for 10 minutes at 5000 rpm at room temperature using a homogenizer (manufactured by KINEMATICA, POLYTORON). A pesticide composition 13 was obtained.

Production Example 14
In Production Example 1, 2.4 g of acid staple xanthan gum (CP KELCO, trade name: Kelzan ASX) of (2) was changed to xanthan gum (CP KELCO, trade name: Kelzan S), and thickening of (2) An aqueous suspension pesticide composition 14 was obtained in the same manner except that 30 g of the aqueous agent solution was changed to 40 g.

Formulation Example 15
(1) In a 500 ml SUS beaker, 83.0 g of deionized water and polyoxyethylene tristyrylphenyl ether phosphate ester potassium salt (manufactured by Rhodia Nikka, trade name: Soprophor FLK; 40% surfactant, 55.2 g of propylene glycol (60%) was added and stirred until dissolved. Next, 1.1 g of silicone emulsion (antifoaming agent, manufactured by Dow Corning, trade name: Antifoam C), silica / aluminum oxide mixture (thickener, manufactured by Degussa, trade name: Aerosil COK-84) 5 g and 55.2 g of full microlac pentyl (content 97.7%) were added, and 300 g of 1.0 mm diameter glass beads were further added. The mixture was stirred for 2 hours at 2000 rpm with a Lab-stirler (manufactured by Yamato Kagaku), and the glass beads were scraped with a nylon mesh to obtain a full microlapping pentyl suspension. When the obtained full microlap pentyl suspension was measured with Mastersizer 2000 (manufactured by Malvern), the volume median diameter of the full microlap pentyl was 1.8 μm.
(2) In a 500 ml SUS beaker, 297.6 g of deionized water and 2.4 g of acid staple xanthan gum (manufactured by CP KELCO, trade name: Kelzan ASX) are added and stirred using a Lab-stirrer. A thickener aqueous solution was obtained.
(3) In a 300 ml SUS beaker, 72.4 g of the full microwrap pentyl suspension of (1) and polyoxyethylene alkyl ether phosphate ester ammonium salt (manufactured by Rhodia Nikka, trade name: Geronol CF / AR, 16.0 g of a surfactant (70% surfactant) was added, and the mixture was stirred at 3000 rpm for 5 minutes at room temperature using a homogenizer (manufactured by KINEMATICA, POLYTORON). Next, 30 g of the thickener aqueous solution (2) was added and stirred at room temperature at 3000 rpm for 5 minutes. Next, 87.1 g of an aqueous solution of isopropylamine salt of glyphosate (content 62%) and deionized water were added so that the total amount was 200 ml, and the mixture was stirred at 3000 rpm for 10 minutes at room temperature. A pesticide composition 15 was obtained.

Production Example 16
In the same manner as in Production Example 15 (1), except that 55.2 g of full microlapping pentyl (content 97.7%) was changed to 55.2 g of dicrocimet (content 98.7%), diclosimet suspension (in volume) The unit diameter was 1.9 μm).
And in (3) of manufacture example 15, it carried out similarly except having made 72.4g of full micro lap pentyl suspensions 72.4g of the above-mentioned diclosimet suspensions, and obtained the aqueous suspension pesticide composition 16. .

Production Example 17
The same procedure as in Production Example 15 (1) was conducted except that 55.2 g of full microlapping pentyl (content 97.7%) was changed to 55.2 g of bensultap (content 96.0%). (Diameter: 2.9 μm).
And in (3) of manufacture example 15, it carried out similarly except having made 72.4 g of full micro lap pentyl suspensions into 72.4 g of the above-mentioned bensultap suspension, and obtained the aqueous suspension agricultural chemical composition 17. .

Production Example 18
In the same manner as in Production Example 15 (1), except that 55.2 g of full microlap pentyl (content 97.7%) was changed to 55.2 g of diflufenican (content 98.5%), diflufenican suspension (in volume) (Diameter: 2.6 μm).
And in (3) of manufacture example 15, it carried out similarly except having made 72.4 g of full micro lap pentyl suspensions into 72.4 g of the above-mentioned diflufenican suspension, and obtained the aqueous suspension agricultural chemical composition 18. .

Production Example 19
Flumioxazin (content 99.8%) was dry pulverized for 60 minutes using an air mill to obtain flumioxazin powder having a volume median diameter of 2.8 μm.
To a mixture of 15 g of ion-exchanged water and 10 g of polyoxyethylene tristyrylphenyl ether phosphate potassium salt (manufactured by Rhodia Nikka, trade name: Soprofall FLK; surfactant 40%, propylene glycol 60%), a silicone emulsion ( Antifoam, manufactured by Dow Corning, trade name: Antifoam C) 0.2 g, silica / aluminum oxide mixture (thickener, manufactured by Degussa, trade name: Aerosil COK-84) 1.0 g, Production Example 19 Add 1.0 g of flumioxazin powder and 8.0 g of polyoxyethylene alkyl ether phosphate ammonium salt (Rodia Nikka, trade name: Geronol CF / AR, 70% surfactant), homogenizer (KINEMATICA, POLYTORON) ) At room temperature for 5 minutes at 5000 rpm And 拌 obtain flumioxazin suspension.
Add 0.16 g of Acid Staple Xanthan Gum (CP KELCO, trade name: Kelzan ASX) to 19.84 g of ion-exchanged water, and stir at 60 ° C./2 hours using a three-one motor stirrer. Obtained. After cooling the thickener aqueous solution to 25 ° C., the above flumioxazin suspension, 43.55 g of an aqueous solution (content 62%) of glyphosate isopropylamine salt and 1.25 g of ion-exchanged water were added, and a homogenizer (manufactured by KINEMATICA) was added. , POLYTORON) and stirred at 5000 rpm for 5 minutes at room temperature to obtain an aqueous suspension 19.

Production Example 20
To a mixture of 15 g of ion-exchanged water and 10 g of polyoxyethylene tristyrylphenyl ether phosphate potassium salt (manufactured by Rhodia Nikka, trade name: Soprofall FLK; surfactant 40%, propylene glycol 60%), a silicone emulsion ( Antifoam, manufactured by Dow Corning, trade name: Antifoam C) 0.2 g, silica / aluminum oxide mixture (thickener, manufactured by Degussa, trade name: Aerosil COK-84) 1.0 g, Production Example 19 Add 1.0 g of flumioxazin powder and 8.0 g of polyoxyethylene alkyl ether phosphate ammonium salt (Rodia Nikka, trade name: Geronol CF / AR, 70% surfactant), homogenizer (KINEMATICA, POLYTORON) ) At room temperature for 5 minutes at 5000 rpm And 拌 obtain flumioxazin suspension.
Add 0.16 g of acid staple xanthan gum (CP KELCO, trade name: Kelzan ASX) to 19.84 g of ion-exchanged water, and stir at 60 ° C./2 hours using a three-one motor stirrer to obtain a thickener aqueous solution. It was. After cooling the thickener aqueous solution to 25 ° C., the above flumioxazin suspension, 16.12 g of an aqueous solution (content 62%) of glyphosate isopropylamine salt and 28.68 g of ion-exchanged water were added, and a homogenizer (manufactured by KINEMATICA) was added. , POLYTORON) and stirred at 5000 rpm for 5 minutes at room temperature to obtain an aqueous suspension composition 20.

Production Example 21
To a mixture of 15 g of ion-exchanged water and 10 g of polyoxyethylene tristyrylphenyl ether phosphate potassium salt (manufactured by Rhodia Nikka, trade name: Soprofall FLK; surfactant 40%, propylene glycol 60%), a silicone emulsion ( Antifoam, manufactured by Dow Corning, trade name: Antifoam C) 0.2 g, silica / aluminum oxide mixture (thickener, manufactured by Degussa, trade name: Aerosil COK-84) 1.0 g, Production Example 19 Add 10 g of flumioxazin powder and 8.0 g of polyoxyethylene alkyl ether phosphate ester ammonium salt (Rodia Nikka, trade name: Geronol CF / AR, 70% surfactant), and add homogenizer (KINEMATICA, POLYTORON) And stir for 5 minutes at 5000 rpm at room temperature To give flumioxazin suspension.
Next, 0.16 g of acid staple xanthan gum (manufactured by CP KELCO, trade name: Kelzan ASX) is added to 19.84 g of ion-exchanged water, and the mixture is stirred with a three-one motor agitator at 60 ° C. for 2 hours to increase the viscosity. An aqueous agent solution was obtained. After cooling the thickener aqueous solution to 25 ° C., the above flumioxazin suspension, 16.12 g of an aqueous solution (content 62%) of glyphosate isopropylamine salt and 19.68 g of ion-exchanged water were added, and a homogenizer (manufactured by KINEMATICA) was added. , POLYTORON) and stirred at 5000 rpm for 5 minutes at room temperature to obtain an aqueous suspension composition 21.

Production Example 22
Polyoxyethylene tristyrylphenyl ether phosphate potassium salt (Rhodia Nikka, trade name: Soprofall FLK; surfactant 40%, propylene glycol 60%) to 10 g of silicone emulsion (antifoaming agent, Dow Corning) Manufactured, trade name: Antiform C) 0.2 g, silica / aluminum oxide mixture (thickener, manufactured by Degussa, trade name: Aerosil COK-84) 1.0 g, flumioxazin powder 30.0 g of Production Example 19 and Add 8.0 g of polyoxyethylene alkyl ether phosphate ammonium salt (Rodia Nikka, trade name: Geronol CF / AR, 70% surfactant), and use a homogenizer (KINEMATICA, POLYTORON) at room temperature. Stir at 5000 rpm for 5 minutes to suspend the flumioxazin suspension. To obtain a liquid.
Add 0.16 g of acid staple xanthan gum (product name: Kelzan ASX, manufactured by CP KELCO) to 18.39 g of ion-exchanged water, and stir at 60 ° C./2 hours using a three-one motor stirrer. Obtained. After cooling the thickener aqueous solution to 25 ° C., 32.25 g of the above flumioxazin suspension and an aqueous solution of isopropylamine salt of glyphosate (content 62%) were added, and using a homogenizer (POLYTORON, manufactured by KINEMATICA), The mixture was stirred at room temperature at 5000 rpm for 5 minutes to obtain an aqueous suspension composition 22.

Production Example 23
To a mixture of 14.68 g of ion-exchanged water and 10 g of polyoxyethylene tristyrylphenyl ether phosphate potassium salt (manufactured by Rhodia Nikka, trade name: Soprofall FLK; surfactant 40%, propylene glycol 60%), silicone Emulsion (antifoam, manufactured by Dow Corning, trade name: Antifoam C) 0.2 g, silica / aluminum oxide mixture (thickener, manufactured by Degussa, trade name: Aerosil COK-84) 1.0 g, production example 19 flumioxazin powder 30.0g and polyoxyethylene alkyl ether phosphate ammonium salt (Rodia Nikka, trade name: Geronol CF / AR, surfactant 70%) 8.0g were added, and a homogenizer (KINEMATICA) , POLYTORON) at room temperature, 5000 rpm Stirred for 5 minutes to obtain a flumioxazin suspension.
Add 0.16 g of Acid Staple Xanthan Gum (CP KELCO, trade name: Kelzan ASX) to 19.84 g of ion-exchanged water, and stir at 60 ° C./2 hours using a three-one motor stirrer. Obtained. After cooling the thickener aqueous solution to 25 ° C, 16.12 g of the above flumioxazin suspension and an aqueous solution of isopropylamine salt of glyphosate (content 62%) were added, and a homogenizer (KINEMATICA, POLYTORON) was used. The mixture was stirred at room temperature at 5000 rpm for 5 minutes to obtain an aqueous suspension composition 23.

Production Example 24
To a mixture of 7.26 g of ion-exchanged water and 1.0 g of polyoxyethylene tristyrylphenyl ether phosphate potassium salt (Rhodia Nikka, trade name: Soprofall FLK; surfactant 40%, propylene glycol 60%) , 0.2 g of silicone emulsion (antifoam, manufactured by Dow Corning, trade name: Antifoam C), 1.0 g of silica / aluminum oxide mixture (thickener, manufactured by Degussa, trade name: Aerosil COK-84), 10.0 g of flumioxazin powder of Production Example 19 and 17.0 g of polyoxyethylene alkyl ether phosphate ammonium salt (Rhodia Nikka, trade name: Geronol CF / AR, 70% surfactant) were added, and a homogenizer (KINEMATICA) was added. 5,000 rpm / room temperature using POLYTORON) In and stirred for 5 minutes to obtain a flumioxazin suspension.
Add 0.16 g of Acid Staple Xanthan Gum (CP KELCO, trade name: Kelzan ASX) to 19.84 g of ion-exchanged water, and stir at 60 ° C./2 hours using a three-one motor stirrer. Obtained. After cooling the thickener aqueous solution to 25 ° C., the above flumioxazin suspension and 43.54 g of an aqueous solution of isopropylamine salt of glyphosate (content 62%) were added, and using a homogenizer (KINEMATICA, POLYTORON), The mixture was stirred at room temperature at 5000 rpm for 5 minutes to obtain an aqueous suspension composition 24.

Production Example 25
To a mixture of 7.26 g of ion-exchanged water and polyoxyethylene tristyrylphenyl ether phosphate ester potassium salt (Rhodia Nikka, trade name: Soprofall FLK; 40% surfactant, 60% propylene glycol) , 0.2 g of silicone emulsion (antifoam, manufactured by Dow Corning, trade name: Antifoam C), 1.0 g of silica / aluminum oxide mixture (thickener, manufactured by Degussa, trade name: Aerosil COK-84), 10.0 g of flumioxazin powder of Production Example 19 and 9.0 g of polyoxyethylene alkyl ether phosphate ester ammonium salt (manufactured by Rhodia Nikka, trade name: Geronol CF / AR, 70% surfactant) were added, and a homogenizer (KINEMATICA) was added. 5,000 rpm at room temperature using POLYTORON) Stirred for 5 minutes to obtain a flumioxazin suspension.
Add 0.16 g of Acid Staple Xanthan Gum (CP KELCO, trade name: Kelzan ASX) to 19.84 g of ion-exchanged water, and stir at 60 ° C./2 hours using a three-one motor stirrer. Obtained. After cooling the thickener aqueous solution to 25 ° C., the above flumioxazin suspension and 43.54 g of an aqueous solution of isopropylamine salt of glyphosate (content 62%) were added, and using a homogenizer (KINEMATICA, POLYTORON), The mixture was stirred at 5000 rpm for 5 minutes at room temperature to obtain an aqueous suspension composition 25.

Production Example 26
To a mixture of 7.26 g of ion-exchanged water and potassium salt of polyoxyethylene tristyrylphenyl ether phosphate ester (Rodia Nikka, trade name: Soprofall FLK; surfactant 40%, propylene glycol 60%) , 0.2 g of silicone emulsion (antifoam, manufactured by Dow Corning, trade name: Antifoam C), 1.0 g of silica / aluminum oxide mixture (thickener, manufactured by Degussa, trade name: Aerosil COK-84), 10.0 g of flumioxazin powder of Production Example 19 and 1.0 g of polyoxyethylene alkyl ether phosphate ester ammonium salt (manufactured by Rhodia Nikka, trade name: Geronol CF / AR, 70% surfactant) were added, and a homogenizer (KINEMATICA) was added. 5,000 rpm / room temperature using POLYTORON) In and stirred for 5 minutes to obtain a flumioxazin suspension.
Add 0.16 g of Acid Staple Xanthan Gum (CP KELCO, trade name: Kelzan ASX) to 19.84 g of ion-exchanged water, and stir at 60 ° C./2 hours using a three-one motor stirrer. Obtained. After cooling the thickener aqueous solution to 25 ° C., the above flumioxazin suspension and 43.54 g of an aqueous solution of isopropylamine salt of glyphosate (content 62%) were added, and using a homogenizer (KINEMATICA, POLYTORON), The mixture was stirred at 5000 rpm for 5 minutes at room temperature to obtain an aqueous suspension composition 26.

Production Example 27
Polyoxyethylene tristyrylphenyl ether phosphate potassium salt (made by Rhodia Nikka, trade name: Soprofall FLK; surfactant 40%, propylene glycol 60%) 25.0 g, silicone emulsion (antifoaming agent, Dow) -Coming, product name: Antifoam C) 0.2 g, silica / aluminum oxide mixture (thickener, Degussa, product name: Aerosil COK-84) 1.0 g, Flumioxazin powder of Production Example 19 0 g and polyoxyethylene alkyl ether phosphate ester ammonium salt (Rodia Nikka, trade name: Geronol CF / AR, 70% surfactant) 16.0 g was added, and using a homogenizer (KINEMATICA, POLYTORON), Stir at 5000 rpm for 5 minutes at room temperature To obtain a down suspension.
To an aqueous solution (content 62%) of glyphosate isopropylamine salt (43.54 g) was added acid staple xanthan gum (CP KELCO, trade name: Kelzan ASX) 0.16 g and ion-exchanged water 4.1 g. The mixture was stirred at 60 ° C./2 hours, cooled to 25 ° C., the above flumioxazin suspension was added, and the mixture was stirred at room temperature at 5000 rpm for 5 minutes using a homogenizer (manufactured by KINEMATICA, POLYTORON). As a result, an aqueous suspension composition 27 was obtained.

Production Example 28
Polyoxyethylene tristyrylphenyl ether phosphate ester potassium salt (made by Rhodia Nikka, trade name: Soprofall FLK; 40% surfactant, 60% propylene glycol), 1 g silicone emulsion (antifoaming agent, Dow Corning) Manufactured, trade name: Antifoam C) 0.2 g, silica / aluminum oxide mixture (thickener, manufactured by Degussa, trade name: Aerosil COK-84) 1.0 g, Flumioxazin powder 1.0 g of Production Example 19 and 17.0 g of polyoxyethylene alkyl ether phosphate ester ammonium salt (Rhodia Nikka, trade name: Geronol CF / AR, 70% surfactant) was added, and the mixture was heated to room temperature using a homogenizer (POLYTORON, manufactured by KINEMATICA). Stir at 5000 rpm for 5 minutes to suspend flumioxazin It was obtained.
To 79.64 g of an aqueous solution (content 62%) of glyphosate isopropylamine salt, 0.16 g of Acid Staple Xanthan Gum (CP KELCO, trade name: Kelzan ASX) was added, and a three-one motor agitator was used. After stirring for 2 hours and cooling to 25 ° C., the flumioxazin suspension was added thereto, and the mixture was stirred at 5000 rpm for 5 minutes at room temperature using a homogenizer (manufactured by KINEMATICA, POLYTORON). Composition 28 was obtained.

Production Example 29
Polyoxyethylene tristyrylphenyl ether phosphate potassium salt (Rhodia Nikka, trade name: Soprofall FLK; surfactant 40%, propylene glycol 60%) 15.0 g with silicone emulsion (antifoaming agent, Dow Coming, product name: Antiform C) 0.2 g, silica / aluminum oxide mixture (thickener, manufactured by Degussa, product name: Aerosil COK-84) 1.0 g, Flumioxazin powder 1.0 g in Production Example 19 And 3.0 g of polyoxyethylene alkyl ether phosphate ester ammonium salt (manufactured by Rhodia Nikka, trade name: Geronol CF / AR, 70% surfactant), and using a homogenizer (manufactured by KINEMATICA, POLYTORON) at room temperature Stir at 5000 rpm for 5 minutes and flumioxazine suspension To obtain a liquid.
Acid staple xanthan gum (CP KELCO, trade name: Kelzan ASX) 0.16 g was introduced into 79.64 g of an aqueous solution of isopropylamine salt of glyphosate (62% content), and 60 ° C./2 using a three-one motor agitator. After stirring for 25 hours and cooling to 25 ° C., the flumioxazin suspension was added thereto, and the mixture was stirred at 5000 rpm for 5 minutes at room temperature using a homogenizer (manufactured by KINEMATICA, POLYTORON). Product 29 was obtained.

Production Example 30
To a mixture of 10.26 g of ion-exchange water and 1.0 g of polyoxyethylene tristyrylphenyl ether phosphate ester potassium salt (manufactured by Rhodia Nikka, trade name: Soprofall FLK; 40% surfactant, 60% propylene glycol) , 0.2 g of silicone emulsion (antifoam, manufactured by Dow Corning, trade name: Antifoam C), 1.0 g of silica / aluminum oxide mixture (thickener, manufactured by Degussa, trade name: Aerosil COK-84), 10.0 g of flumioxazin powder of Production Example 19 and 10.0 g of polyoxyethylene alkyl ether phosphate ester ammonium salt (manufactured by Rhodia Nikka, trade name: Geronol CF / AR, 70% surfactant) were added, and a homogenizer (KINEMATICA) was added. 5,000 revolutions at room temperature using POLYTORON) Min and stirred for 5 minutes to obtain a flumioxazin suspension.
Add 0.16 g of Acid Staple Xanthan Gum (CP KELCO, trade name: Kelzan ASX) to 19.84 g of ion-exchanged water, and stir at 60 ° C./2 hours using a three-one motor stirrer. Obtained. After cooling the thickener aqueous solution to 25 ° C., the above flumioxazin suspension, 43.54 g of an aqueous solution of isopropylamine salt of glyphosate (content 62%) and 4.5 g of propylene glycol were added, and a homogenizer (manufactured by KINEMATICA, Using POLYTORON), the mixture was stirred at 5000 rpm for 5 minutes at room temperature to obtain an aqueous suspension composition 30.

Production Example 31
To a mixture of 10.26 g of ion-exchanged water and 5.0 g of polyoxyethylene tristyrylphenyl ether phosphate ester potassium salt (manufactured by Rhodia Nikka, trade name: Soprofall FLK; surfactant 40%, propylene glycol 60%) , 0.2 g of silicone emulsion (antifoam, manufactured by Dow Corning, trade name: Antifoam C), 1.0 g of silica / aluminum oxide mixture (thickener, manufactured by Degussa, trade name: Aerosil COK-84), 10.0 g of flumioxazin powder of Production Example 19 and 10.0 g of polyoxyethylene alkyl ether phosphate ester ammonium salt (manufactured by Rhodia Nikka, trade name: Geronol CF / AR, 70% surfactant) were added, and a homogenizer (KINEMATICA) was added. 5,000 revolutions at room temperature using POLYTORON) Min and stirred for 5 minutes to obtain a flumioxazin suspension.
Add 0.16 g of Acid Staple Xanthan Gum (CP KELCO, trade name: Kelzan ASX) to 17.34 g of ion-exchanged water, and stir at 60 ° C./2 hours using a three-one motor stirrer to obtain a thickener aqueous solution. Obtained. After cooling the thickener aqueous solution to 25 ° C., the above flumioxazine suspension, 43.54 g of an aqueous solution of isopropylamine salt of glyphosate (content 62%) and 2.5 g of propylene glycol were added, and a homogenizer (manufactured by KINEMATICA, Using POLYTORON), the mixture was stirred at 5000 rpm for 5 minutes at room temperature to obtain an aqueous suspension composition 31.

Comparative production example 1
(1) 35.2 parts of deionized water, 2.5 parts of ligninsulfuric acid sodium salt (made by Westvaco, trade name: Ryax 910), 0.3 part of silicone emulsion (made by Dow Corning, trade name: Anti Form C emulsion) and flumioxazin 25.4 parts (content 99.2%) are mixed with 130 parts of 1.0 mm glass beads and stirred for 3 hours using a three-one motor agitator. Scraping to obtain a flumioxazin suspension. When the obtained flumioxazin suspension was measured with Mastersizer 2000 (manufactured by Malvern), the volume median diameter of flumioxazin was 1.8 μm.
(2) In the flumioxazin suspension of (1), 0.2 part of a silicone emulsion (trade name: Antifoam C emulsion manufactured by Dow Corning), 50.8 parts of hexadecyltrimethylammonium chloride (Lion Akzo) Manufactured, trade name: ARCARD 16-50), aliphatic alcohol polyglycol ether 33.9 parts (manufactured by Clariant, trade name: Emarsogen M), silica / aluminum oxide mixture 25.4 parts (made by Degussa, trade name: Aerosil COK-84), 655.9 parts (content 62%) of an aqueous solution of isopropylamine salt of glyphosate, 42.4 parts of polypropylene glycol and 128.0 parts of deionized water were added, and a homogenizer (manufactured by KINEMATICA, POLYTORON) was used. Stir at 5000 rpm for 10 minutes at room temperature to make a comparative aqueous suspension A pesticide composition was obtained.

Test example 1
About 80% of each aqueous suspension pesticide composition 1, 3, 4, 5, 6, 7, 8, 9, 15, 16, 17 and 18 into a 100 ml glass screw tube (diameter 35 mm x height 110 mm) After 2 months, the state after 2 months was visually observed. In any aqueous suspension pesticide composition, the suspended state was stable and no separation phenomenon was observed.

Test example 2
About 80% of the aqueous suspension pesticide composition 2 was put into a 100 ml glass screw tube (diameter 35 mm × height 110 mm), left still at 54 ° C., and the state after one month was visually observed. A small amount of a transparent separation layer was observed at the top of the composition, but the height of the transparent layer was 4% of the total layer height of the total composition.

Test example 3
The aqueous suspension pesticide compositions 12 and 13 and the comparative aqueous suspension pesticide composition were each placed in a 100 ml glass screw tube (diameter 35 mm × height 110 mm) at about 80% and allowed to stand 3 The state after the day was visually observed. The results are shown in Table 1.

＊１：分離度(％)＝透明部（層）の高さ（ｍｍ）／全容量の高さ（ｍｍ）×１００

* 1: Degree of separation (%) = transparent part (layer) height (mm) / total capacity height (mm) × 100

Test example 4
A predetermined amount of the aqueous suspension pesticide composition 2 was diluted with water to prepare a water dilution. The dilute water was sprayed on foliage, ichibi, akinoenokorogusa, and hinobie growing in the field at an amount of 236 L / ha (2 L / ha as an aqueous suspension pesticide composition 2). Observation was made after 18 days. The results are shown in Table 2. The evaluation of herbicidal efficacy was evaluated as “0” when the weed growth state was completely different from the weeds not treated with the drug at the time of the survey, and the weeds were completely dead or completely grown. What is suppressed is “10”, and is divided into 11 stages of 0 to 10, and “0”, “1”, “2”, “3”, “4”, “5”, “6”, “7”, “8”, “9”, “10”.

Since this aqueous suspension agricultural chemical composition is excellent in suspension stability, it is useful as an agricultural chemical formulation containing a poorly water-soluble agricultural active ingredient and an N-phosphonomethylglycine salt.

Claims (12)

(A) 0.5-50 parts by weight of a poorly water-soluble pesticide active ingredient that is solid at 25 ° C.
(B) N-phosphonomethylglycine salt 5-60 parts by weight,
(C) 0.5-15 parts by weight of polyoxyalkylene alkyl ether phosphate ester salt,
(D) 0.5-10 parts by weight of polyoxyalkylene polystyrylphenyl ether phosphate ester salt,
(E) Thickener 0.01 to 10 parts by weight,
(F) 20 to 90 parts by weight of water, and (g) Ri or formulation auxiliaries 0 to 30 parts by weight <br/> Rana, and the pesticidal active ingredient is suspended in water-continuous phase in the solid state An aqueous suspension pesticide composition. (A) 1-30 parts by weight of a poorly water-soluble pesticidal active ingredient that is solid at 25 ° C.
(B) 10 to 50 parts by weight of a salt of N-phosphonomethylglycine,
(C) 0.5-15 parts by weight of polyoxyalkylene alkyl ether phosphate ester salt,
(D) 0.5-10 parts by weight of polyoxyalkylene polystyrylphenyl ether phosphate ester salt,
(E) Thickener 0.01-5 parts by weight,
(F) 20 to 90 parts by weight of water, and (g) Ri or formulation auxiliaries 0 to 20 parts by weight <br/> Rana, and the pesticidal active ingredient is suspended in water-continuous phase in the solid state An aqueous suspension pesticide composition. (A) The aqueous suspended agricultural chemical composition according to claim 1 or 2, wherein the poorly water-soluble agricultural chemical active ingredient that is solid at 25 ° C is a herbicidal active ingredient that is solid at 25 ° C. (A) The aqueous suspension agricultural chemical composition according to claim 1 or 2, wherein the poorly water-soluble agricultural chemical active ingredient that is solid at 25 ° C is a herbicidal active ingredient of protoporphyrinogen oxidase that is solid at 25 ° C. (A) N- (7-fluoro-3,4-dihydro-3-oxo-4-prop-2-ynyl-2H-1,4-benzoxazine-6- is a poorly water-soluble pesticidal active ingredient that is solid at 25 ° C. 3) The aqueous suspension pesticide composition according to claim 1 or 2, which is yl) cyclohex-1-ene-1,2-dicarboxamide. (E) The thickener is a water-soluble polysaccharide or an inorganic solid fine powder. The aqueous suspended agricultural chemical composition according to any one of claims 1 to 5. (E) The thickener is a water-soluble polysaccharide and an inorganic solid fine powder. The aqueous suspended agricultural chemical composition according to any one of claims 1 to 5. (G) The formulation aid is at least one formulation aid selected from the group consisting of antifreezing agents, antifoaming agents, preservatives, stabilizers, colorants, fragrances, efficacy enhancers, and safeners. The aqueous suspended agricultural chemical composition according to any one of claims 1 to 7. A method for producing an aqueous suspension pesticide composition according to any one of claims 1 to 6,
(A) containing a poorly water-soluble pesticidal active ingredient that is solid at 25 ° C., (c) polyoxyalkylene alkyl ether phosphate ester salt, (d) polyoxyalkylene polystyrylphenyl ether phosphate ester salt, and (f) water Subjecting the mixture to wet milling to prepare a suspension, and then mixing the suspension, (e) a thickener and (b) a salt of N-phosphonomethylglycine. A method for producing an aqueous suspension pesticide composition. A method for producing an aqueous suspension pesticide composition according to claim 7,
(A) A poorly water-soluble pesticidal active ingredient that is solid at 25 ° C., (c) polyoxyalkylene alkyl ether phosphate ester salt, (d) polyoxyalkylene polystyrylphenyl ether phosphate ester salt, (e-1) inorganic solid fine Subjecting the mixture containing the powder and (f) water to wet milling to prepare a suspension; and
Next, a method for producing an aqueous suspended agricultural chemical composition, comprising the step of mixing the suspension, (e-2) a water-soluble polysaccharide, and (b) a salt of N-phosphonomethylglycine. A method for producing an aqueous suspension pesticide composition according to claim 7,
(A) a water-insoluble pesticidal active ingredient solid at 25 ° C., (d) polyoxyalkylene polystyrylphenyl ether phosphate ester salt, (e-1) fine inorganic solid powder, and (f) a mixture containing water is wet. A step of preparing a suspension by grinding, and then the suspension, (c) polyoxyalkylene alkyl ether phosphate ester salt, (e-2) water-soluble polysaccharide, and (b) N-phospho. A method for producing an aqueous suspended agricultural chemical composition, comprising a step of mixing a salt of nomethylglycine. A weed weeding method comprising treating the weed with a water-diluted aqueous suspension of the aqueous suspension pesticide composition according to any one of claims 3 to 8.