JP2017149713A - Stabilized agrochemical composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a stabilized agrochemical composition.SOLUTION: An agrochemical composition comprises: at least one salt selected from the group consisting of sodium sulfate, calcium acetate, and ammonium sulfate; hydrochloric acid; at least one anion surfactant that has a pH (stock solution) of 5 or less at room temperature; and an agrochemical active ingredient.SELECTED DRAWING: None

Description

  The present invention contains at least one salt selected from the group consisting of sodium sulfate, calcium acetate and ammonium sulfate, hydrochloric acid, at least one anionic surfactant having a pH (stock solution) at room temperature of 5 or less, and an agrochemical active ingredient. The present invention relates to an agrochemical composition and a method for using the same.

  In recent years, considering the environmental impact of highly accumulated pesticides, the development of pesticide active ingredients and pesticide formulations that can decompose pesticide active ingredients in the environment and have low long-term toxicity and persistence, that is, low environmental impact It is desired.

In addition to this, in recent years, demand for labor-saving spraying of agricultural chemicals has increased, and the demand for small-scale application agents that reduce the dosage of pharmaceuticals has increased. Has become mainstream. From such a background, the demand for the stability of the pesticidal active ingredient has been further increased in recent years.

  Conventionally, the main dosage forms of agricultural chemical formulations have been wettable powders, aqueous solvents, emulsions, aqueous solutions, granules and the like. Of these, spraying agents such as wettable powder, aqueous solvent, emulsion, and aqueous solution are mainly used in upland fields and non-agricultural land. There are also problems of diffusion into the environment, and emulsions have problems of environmental pollution by solvents and emulsifiers and fire hazards by organic solvents. In addition, many of the pesticidal active ingredients are difficult to dissolve in water and are difficult to formulate into aqueous solutions. For these reasons, recent preparations are being replaced by such aqueous suspension compositions and granular wettable powders with less problems.

  On the other hand, as for the agricultural chemical formulation for paddy fields, the granule has been mainstream. Previously, 3 to 4 kg of granule was previously applied per 10 ares, but in response to increasing demands for labor-saving spraying of agricultural chemicals in recent years, 1 kg of granule with reduced dosage of formulation, etc. A small amount of spray is popular.

  In the field of herbicides for paddy fields, aqueous suspension compositions have been developed for the purpose of saving labor and increasing efficiency during spraying. Unlike the aqueous suspension composition used in fields, non-agricultural land, etc., this dosage form can be dripped or dropped directly from the container into the paddy field without diluting the formulation, requiring special spraying equipment. In addition, since the processing amount is as small as about 100 milliliters to 1 liter per 10 ares, it has a feature that it is light and easy to handle, and depending on the field area, it can be transferred from the bank (so-called frame processing), It can be treated simply by pouring from the mouth when entering the water (so-called water mouth treatment), and is extremely labor-saving, so it has gained a certain share.

  Among the agrochemical active ingredients, for example, pyrazole-based active ingredients, triketone-based active ingredients, sulfonylurea-based active ingredients, and the like exhibit a controlling activity against many perennial weeds and broad-leaved weeds and are widely used. However, these active ingredients are relatively unstable in aqueous suspension compositions and often degrade during storage.

  For this reason, several methods have been proposed so far for stabilization of an agrochemical active ingredient in an agrochemical formulation. That is, in general, as a measure for suppressing the decomposition of the pesticidal active ingredient, a method of adding a pesticidal active ingredient decomposition inhibitor (for example, Patent Documents 1 to 5), and carrying out pretreatment of the carrier to enhance storage stability. Methods (for example, Patent Documents 6 to 8) and methods for suppressing decomposition by adjusting pH (for example, Patent Document 9) have been proposed.

  If the solid herbicidal active ingredient is atomized at room temperature, the contact area with water increases, and in the case of a herbicidal active ingredient that is easily hydrolyzed, hydrolysis is further promoted as a result. Further, in order to disperse and suspend as fine particles in water, the action of a surfactant is essential. When the aqueous suspension composition is used, it is necessary to effectively suppress the decomposition of the active ingredient that is easily hydrolyzed in the aqueous system in which the herbicidal active ingredient and the surfactant are coexisted. As a method for suppressing such hydrolysis, it is necessary to select a surfactant, and when the hydrolysis rate depends on pH, it is effective to suppress hydrolysis by controlling pH. It has been known.

JP-A-8-283108 JP-A-9-143015 JP 2010-173952 A Japanese Patent No. 4216363 Japanese Patent No. 4730485 JP 57-156402 A Japanese Patent Publication No. 3-2842 JP-A-6-263602 Japanese Patent No. 3175850

In a preparation in which an agrochemical active ingredient having a low environmental accumulation property, that is, a low stability, is molded, the agrochemical active ingredient may decompose over time depending on environmental conditions such as temperature conditions. And when decomposition | disassembly arises excessively, the said formulation may cause the fall of the medicinal effect by the decomposition | disassembly of an agrochemical active ingredient, and promotion of phytotoxicity. Furthermore, preparations with remarkable degradation have had problems that it is difficult to guarantee the content value of the agrochemical active ingredient at the expiration date, making commercialization impossible, and greatly impairing the commercial value. In particular, preparations that require the management of the content of the pesticidal active ingredient by median management have a narrower management range as the pesticidal active ingredient content in the pesticide increases, and thus require a pesticidal preparation having higher stability.
In an agrochemical formulation for paddy fields, when trying to reduce the application rate of granules, the herbicidal active ingredient content in the granules inevitably increases and the number of grains per unit area decreases. This is a factor that directly affects the effectiveness of herbicides and phytotoxicity, and since it is required to treat the entire paddy field as uniformly as possible, spraying with a spraying device or rice planting simultaneous processing machine is common. . Therefore, it is not necessarily satisfactory as a dosage form aiming at labor saving.
In the field of herbicides for paddy fields, an aqueous suspension composition is a preparation in which an agrochemical active ingredient is dispersed or emulsified in water. It is difficult to stabilize completely, and considerable degradation cannot be avoided with these techniques.

  As a result of various studies to solve the above problems, the present inventors have found that at least one salt selected from the group consisting of sodium sulfate, calcium acetate, and ammonium sulfate, hydrochloric acid, and pH (stock solution) at room temperature is 5 or less. It is possible to formulate an agrochemical composition that does not decompose in water and maintains a stable suspended state without passing through a special process by adding one or more anionic surfactants. The present invention has been completed by finding out what can be done.

That is, the present invention is as follows [1]-[9].
[1] (1) At least one salt selected from the group consisting of sodium sulfate, calcium acetate and ammonium sulfate, and (2) at least one anionic surfactant (wherein the pH at room temperature is 5 or less). , (3) hydrochloric acid and (4) an agrochemical composition containing at least one agrochemical active ingredient.
[2] The agricultural chemical composition according to [1], wherein the active ingredient of the agricultural chemical is a herbicide.
[3] The pesticidal active ingredient is (A1) a whitening-type herbicidal compound or salt thereof and / or (A2) an acetolactate synthase-inhibiting herbicidal compound or salt thereof according to [1] or [2] Agrochemical composition.
[4] The aqueous suspended agricultural chemical composition according to any one of [1] to [3].
[5] The granular agrochemical composition according to any one of [1] to [3].
[6] (a) (4) At least one kind of agrochemical active ingredient, (5) Surfactant and (6) Water and, if necessary, (7) Other auxiliary ingredients are mixed, and the resulting mixture is A step of wet-grinding to produce an active ingredient suspension slurry;
(B) (1) at least one salt selected from the group consisting of sodium sulfate, calcium acetate and ammonium sulfate, and (2) at least one anionic surfactant (wherein the pH at room temperature is 5 or less). (3) Step of mixing hydrochloric acid and (6) water to prepare a dispersant solution; (c) mixing the resulting slurry and the resulting dispersant solution, and adding the resulting mixture to the mixture as necessary. (7) The method for producing an aqueous suspension pesticide composition according to [4], which comprises a step of mixing other adjuvant components.
[7] Obtained by mixing an aqueous pesticidal composition of [6], (9) mineral fine powder, (5) surfactant and, if necessary, (7) other adjunct ingredients The manufacturing method of the granular agrochemical composition as described in [5] including the process of carrying out wet granulation of a mixture.
[8] A method for applying the aqueous suspension pesticide composition, wherein the aqueous suspension pesticide composition according to [4] is directly sprayed onto a paddy field.
[9] A method for applying the granular agrochemical composition, wherein the granular agrochemical composition according to [5] is directly sprayed onto a paddy field.

  According to the present invention, an agrochemical composition that is good both in terms of chemical stability of the pesticidal active ingredient and in terms of physicochemical stability of the preparation, and a granular pesticidal composition using the paddy field suspension as a premix are obtained. I can do it.

Next, various terms used in this specification will be described.
The content of the pesticidal active ingredient of the present invention in the pesticidal composition only needs to be an amount that allows a suspension preparation to be prepared, and is usually 0.1 to 50 parts by weight based on 100 parts by weight of the present composition. The amount is preferably 1 to 40 parts by weight.

  The agrochemical active ingredient contained in the agrochemical composition of the present invention is a herbicidal active ingredient, an insecticidal active ingredient, a bactericidal active ingredient, an acaricidal active ingredient, a plant regulator ingredient, etc., and its physical properties are not particularly limited. However, herbicidal active ingredients are preferred.

  The herbicidal active ingredient contained in the agrochemical composition of the present invention is not particularly limited, but a whitening herbicidal compound or a salt thereof and / or an acetolactate synthase-inhibiting herbicidal compound or a salt thereof is suitable.

  Whitening type herbicidal compounds are well-known herbicides that whiten weeds and die. As whitening type herbicidal compounds, for example, pyrazole-based herbicidal compounds and triketone-based herbicidal compounds are widely known.

  Examples of the pyrazole herbicidal compound include pyrazolate, pyrazoxifene, and benzophenap. Examples of the triketone herbicidal compound include mesotrione, sulcotrione, benzobicyclone, tefryltrione, and bicyclopyrone.

  An acetolactate synthase (ALS) -inhibiting herbicidal compound is a well-known herbicidal compound that inhibits the synthesis of the essential amino acids valine, leucine and isoleucine by inhibiting ALS and kills weeds. As ALS-inhibiting herbicidal compounds, for example, sulfonylurea herbicidal compounds, pyrimidinyl salicylic acid herbicidal compounds, and triazolopyrimidine herbicidal compounds are widely known.

  Examples of sulfonylurea herbicidal compounds include azimusulfuron, bensulfuronmethyl, cyclosulfamlone, halosulfuronmethyl, ethoxysulfuron, imazosulfuron, pyrazosulfuronethyl, chlorimuronethyl, sinosulflon, metsulfuronmethyl, flucetosulfuron. , Propyrisulfuron, metazosulfuron and the like.

  Examples of the pyrimidinyl salicylic acid herbicidal compound include bispyribac, pyribenzoxime, pyriftalide, pyriminobacmethyl, pyrimisulfurphan, and triafamon.

  Examples of the triazolopyrimidine herbicidal compound include penox slam.

  The insecticidal active ingredient contained in the agrochemical composition of the present invention is not particularly limited, for example, indoxacarb, chromafenozide, pyrimidifen, milbemectin, mesomil, acephate, dinotefuran, thiocyclam, imidacloprid, nitenpyram, acetamiprid, clothianidin, thiamethoxam, Thiacloprid, pyridafenthion, dimethoate, PMP, CVMP, dimethylvinphos, DEP, NAC, MTMC, MIPC, PHC, MPMC, XMC, benfuracarb, pirimicarb, oxamyl, thiodicarb, cypermethrin, cartap, bensultap, diflubenzuron, teflubenzuron, chlorflurazuron Ron, buprofezin, hexythiazox, phenbutasine oxide, pyridaben, clofentezine, bacillus Thuringiensis and toxins they produce, MPP, MEP, diazinon, isoxathion, ethylthiometon, etofenprox, tralomethrin, silafluofen, cycloprothrin [pi] n, such as benfuracarb and Burofuranirido the like.

  The bactericidal active ingredient contained in the agrochemical composition of the present invention is not particularly limited. For example, cimeconazole, hydroxyisoxazole, teclophthalam, dichromedin, penthiopyrad, pyroxylone, dilam, thiuram, captan, TPN, fusalide, triclophosmethyl , Fosetyl, thiophanate methyl, benomyl, carbentazole, thiabetazole, dietofencarb, iprodione, vinclozoline, procymidone, fluorimido, oxycarboxyl, mepronil, flutolanil, pencyclon, metalaxyl, oxadixil, triazimephone, hexaconazole, triphorine, blastcidin S, Kasugamycin, Polyoxin, Validamycin A, PCNB, Dazomet, Triazine, Probenazole, Isoprothiola , Tricyclazole, Tetraconazole tetrazole, trichlamide, oxolinic acid, dimethomorph, cymoxanil, like Torupurokarubu and MON-240.

  The plant regulator contained in the agrochemical composition of the present invention is not particularly limited, and examples thereof include maleic hydrazide and salts thereof, abscisic acid, calcium peroxide, inabenfide, paclobutrazol, uniconazole, triapentenol, and psychocell. Is mentioned.

  As the further pesticidal active ingredient optionally used in the present invention, one or more of the above herbicides, insecticides, fungicides, acaricides, plant regulators, etc. can be used. .

  The sodium sulfate, calcium acetate, and ammonium sulfate used in the present invention are not particularly limited in form and any can be used, but solid ones are preferred. 0.1-10 weight% is suitable for the mixture ratio in the agrochemical composition of this invention with respect to a total amount, and also 1-5 weight% of mixing | blending is suitable.

  The hydrochloric acid used in the present invention is not particularly limited, and any one can be used, but a liquid one is preferred. The mixing ratio in the agricultural chemical composition of the present invention is preferably 0.05 to 10% by weight, and more preferably 0.1 to 5% by weight based on the total amount.

  As the one or more anionic surfactants having a pH (stock solution) of 5 or less at room temperature used in the present invention, any form can be used without particular limitation, but a liquid form is preferred. The blending ratio in the agricultural chemical composition of the present invention is preferably 0.5 to 15% by weight, more preferably 1 to 10% by weight, based on the total amount. Specific examples of anionic surfactants having a pH (stock solution) of 5 or less at room temperature include Agrisol (registered trademark) FL-100F, Agrisol (registered trademark) S-711, Agrisol (registered trademark) W-150S. , Agrisol (registered trademark) S-704 (manufactured by Kao), Levon (registered trademark) 2000HG (manufactured by Sanyo Chemical), New Calgen (registered trademark) 3000-S (Takemoto Yushi Co., Ltd.), Politi (registered trademark) A -540 (manufactured by Lion), Phosphanol (registered trademark) LP-700, Phosphanol (registered trademark) LS-500 (manufactured by Toho Chemical) and the like.

  Other adjuvants can be blended in the agricultural chemical composition of the present invention for various purposes. Other adjuvants include, for example, binders, disintegrants, wetting agents, dispersants, thickeners, antifoaming agents, antifungal agents, solvents or stabilizers, that is, colorants, extenders, preservatives, pH Adjuvant ingredients such as regulators can be added.

  Examples of the binder used in the agrochemical composition of the present invention include, for example, dextrin, polyvinyl alcohol, polyvinyl pyrrolidone, carboxymethyl cellulose salt, methyl cellulose, gum arabic, polyethylene glycol or derivatives thereof, tab powder, bentonite, lignin sulfonate, Examples thereof include carboxylic acid or sulfonic acid type polysoap. Among these, lignin sulfonate or carboxylic acid or sulfonic acid type polysoap can be used as a dispersant and is suitable.

  The disintegrating agent, wetting agent or dispersing agent used in the agrochemical composition of the present invention is not particularly limited as long as it is used for ordinary agricultural chemicals, and is an anionic surfactant, a nonionic surfactant, a positive agent. Any surfactant such as an ionic surfactant or an amphoteric surfactant can be used, and one or more of these surfactants can be used.

  Examples of the anionic surfactant include alkyl phosphate ester salts, alkyl sulfate ester salts, polyoxyalkylene alkyl ether phosphate ester salts, polyoxyethylene alkyl ether sulfate ester salts, alkylaryl phosphate ester salts, alkylaryl sulfate ester salts. , Polyoxyalkylene alkylaryl ether phosphate, polyoxyalkylene alkylaryl ether sulfate, alkylphenol phosphate, alkylphenol phosphate, alkylphenol sulfate, alkylphenol sulfate, polyoxyalkylene alkylphenol phosphate, polyoxyalkylene alkylphenol Phosphate ester salt, polyoxyalkylene alkylphenol sulfate, polyoxyalkylene alkyl Enol sulfate, styrylphenol phosphate, styrylphenol phosphate, styrylphenol sulfate, styrylphenol sulfate, polyoxyalkylene styrylphenol phosphate, polyoxyalkylene styrylphenol phosphate, polyoxyalkylene styrylphenol sulfate Salt, polyoxyalkylene styrylphenol sulfate, distyrylphenol phosphate, distyrylphenol phosphate, distyrylphenol sulfate, distyrylphenol sulfate, polyoxyalkylene distyrylphenol phosphate, polyoxyalkylene di Styrylphenol phosphate ester salt, polyoxyalkylene distyrylphenol sulfate, polyoxyalkylene distyrylphenol Acid ester salt, tristyryl phenol phosphate, tristyryl phenol phosphate salt, tristyryl phenol sulfate, tristyryl phenol sulfate ester, polyoxyalkylene tristyryl phenol phosphate, polyoxyalkylene tristyryl phenol phosphate salt, poly Examples include oxyalkylene tristyryl phenol sulfate, polyoxyalkylene tristyryl phenol sulfate, alkyl succinate sulfonate, dialkyl succinate sulfonate, or polyoxyalkylene dialkyl succinate sulfonate. Alkyl phosphate ester salt, polyoxyalkylene alkyl ether phosphate ester salt, alkylaryl phosphate ester salt, polyoxyalkylene alkyl aryl ester Telluric ester salt, alkyl phenol phosphate, styryl phenol phosphate ester salt, polyoxyalkylene styryl phenol phosphate salt, distyryl phenol phosphate, distyryl phenol phosphate salt, polyoxyalkylene distyryl phenol phosphate, polyoxyalkylene diester Examples include styrylphenol phosphate ester salts, tristyrylphenol phosphate salts, tristyrylphenol phosphate ester salts, polyoxyalkylene tristyrylphenol phosphate salts, and polyoxyalkylene tristyrylphenol phosphate ester salts.

  Nonionic surfactants include, for example, aliphatic alcohol alkylene oxide adducts, polyalkyleneoxy fatty acid esters, sorbitan surfactants or alkylene oxide adducts thereof, polyglycerin fatty acid esters, alkyl polysaccharide surfactants, Shuroglyceride, polyoxyalkylene alkyl ether, polyoxyethylene alkyl ether, polyoxyalkylene alkyl aryl ether, polyoxyalkylene alkyl phenol ether, polyoxyalkylene styryl phenol ether, polyoxyalkylene distyryl phenol ether or polyoxyalkylene tristyryl phenol Ethers, and the like, preferably polyoxyalkylene alkyl ethers, polyoxyethylenes. Down alkyl ethers, polyoxyalkylene alkylaryl ethers, polyoxyalkylene alkylphenol ethers, polyoxyalkylene styryl phenol ether, polyoxyalkylene styryl phenol ether or polyoxyalkylene Rent squirrel styryl phenol ether and the like.

In addition, in the surfactant of the type to which these ethylene oxides are added, propylene oxide may be contained in a part thereof.

  Examples of the cationic surfactant include an aliphatic tertiary amine or a salt thereof, an aliphatic tertiary amine, an aliphatic amine alkylene oxide adduct or a salt thereof, or an aliphatic quaternary amine salt.

  Examples of amphoteric surfactants include, for example, amino acid-type amphoteric surfactants such as sodium laurylaminopropionate; carboxylate types such as betaine-type amphoteric surfactants such as lauryldimethylbetaine, stearyldimethylbetaine, and lauryldidihydroxyethylbetaine. Examples include amphoteric surfactants; sulfate ester type amphoteric surfactants; sulfonate type amphoteric surfactants; or phosphate ester type amphoteric surfactants.

  The surfactant used in one embodiment of the agrochemical composition used in the present invention is preferably an anionic surfactant or a nonionic surfactant.

The amount of the surfactant used in one embodiment of the agricultural chemical composition used in the present invention is usually 0.01 to 20% by weight, preferably 0.1 to 10% by weight in the agricultural chemical composition. %.

  The thickener is not particularly limited as long as it is usually used in agrochemical formulations. For example, minerals such as white carbon, aluminosilicate, bentonite, montmorillonite, hectorite, attapulgite or gum arabic, tragacanth gum, xanthan gum , Guar gum, roast bean gum, casein, alginic acid, cellulosic polysaccharides, ethyl cellulose, polyvinyl alcohol, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, and the like. A polymer thickener, more preferably xanthan gum.

  The antifoaming agent is not particularly limited as long as it is usually used in agrochemical preparations. For example, lower alcohol-based antifoaming agents such as methanol, ethanol, isopropanol, sec-butanol, butanol; amyl alcohol, diisobutylcarbi Thor, tributyl phosphate, oleic acid, tall oil, metal soap, HLB low surfactant (for example, sorbitan lauric acid monoester, sorbitan lauric acid triester, polyethylene glycol fatty acid ester, acetylene glycol derivative, pluronic nonionic interface Active agent, etc.), organic polar compound antifoaming agents such as acetylene glycol derivatives; mineral oil surfactant defoamers, mineral oil defoamers such as mineral oil and fatty acid metal salt surfactant blends; Silicone resin, silicone Fat surfactants mixed product, and the like silicone resin-based antifoaming agents such as silicone resin inorganic powder mixed product.

The antifungal agent is not particularly limited as long as it is usually used in agrochemical formulations. For example, parachlorometaxylenol, polyhexamethylene biguanide hydrochloride, 1,2-benzisothiazoline-3-one , Methyl parahydroxybenzoate, ethyl parahydroxybenzoate, propyl parahydroxybenzoate, butyl parahydroxybenzoate, heptyl parahydroxybenzoate, benzyl parahydroxybenzoate, paraoxybenzoate, sorbic acid, orthophenylphenol, sodium orthophenylphenate, glutar Dialdehyde, quaternary ammonium compound, tri- (N-chlorohexyldiazeniumdioxy) -aluminum, tetrahydro-3,5-dimethyl-2H-1,3,5- Asiadin-2-thione, 2,5-dimethoxytetrahydrofuran, dimethylolurea, sodium N-methyldithiocarbamate, phenoxyethanol, glyoxal, glutaraldehyde, 1,3,5-tris (2-hydroxyethyl) -1,3,5- Examples include hexahydrotriazine, benzalkonium chloride, phenoxypropanol, tetramethylacetylene diurea, povidone iodine, potassium sorbate, 2-bromo-2-nitropropane-1,3-diol, and thiazolone.

  The solvent is not particularly limited as long as it is usually used for agricultural chemicals, but a solvent having a flash point higher than that of the second petroleum is desirable. For example, alkylbenzene, methylnaphthalene, liquid paraffin, ligroin, kerosene, kerosene, n-decane, isododecane, tetralin, decalin, turpentine oil, pine oil, adipic acid, gluconic acid, maleic acid, lactic acid, benzoic acid, phthalic acid, apple Acid, fumaric acid, succinic acid, tartaric acid, citric acid, lauric acid, oleic acid, palm oil fatty acid, cyclohexanone, cyclohexenylcyclohexanone, acetylacetone, acetophenone, methyl butyl ketone, ethylene glycol, diethylene glycol, triethylene glycol, propylene Glycol, dipropylene glycol, tripropylene glycol, epichlorhydrin, diglycidyl ether, dioxane, triethyl phosphate, tributyl phosphate, soybean oil, rapeseed oil, sesame oil Rice oil, coconut oil, sunflower oil, sardine oil, whale oil, dimethylsulfoxide, N, etc. N- dimethylacetamide or N- methylpyrrolidone.

  The colorant is not particularly limited as long as it is usually used for agricultural chemicals, and examples thereof include pigments, and brilliant blue FCF, cyanine green G, and Erio green G are preferable. The amount of the colorant used is usually 0.05 to 0.5% by weight, preferably 0.1 to 0.3% by weight in the granular agrochemical composition.

  Examples of extenders include, for example, vinyl chloride, chlorinated polyethylene, in addition to mineral fine powders commonly used as agrochemical carriers such as bentonite, talc, clay, diatomaceous earth, amorphous silicon dioxide, calcium carbonate, magnesium carbonate, and the like. Resin powder such as chlorinated polypropylene, sugars such as glucose, sugar and lactose, carboxymethylcellulose or its salts, starch or derivatives thereof, microcrystalline cellulose, wood flour, rice bran, bran, rice husk powder, coffee bean powder, cellulose powder, Examples include organic substances such as licorice powder, water-soluble inorganic salts such as sodium sulfate, ammonium sulfate, and potassium chloride, and urea. Examples of the bentonite include bentonite Hotaka, Fuji (manufactured by Hojun Co.), Kunigel V1, V2 (manufactured by Kunimine Kogyo Co., Ltd.), bentonite KG-1, and KA-1 (manufactured by Nippon Bentonite Co., Ltd.). The compounding amount of the extender is the minimum amount required excluding the essential components of the agrochemical composition of the present invention, and varies depending on the type of extender, but is usually 0.1 to 90% by weight in the agrochemical composition. Yes, preferably 0.5 to 70% by weight.

  The preservative is not particularly limited as long as it is usually used for agricultural chemicals, and preferably sorbic acid, potassium sorbate, parachlorometaxylenol, butyl paraoxybenzoate or sodium dehydroacetate. The amount of the preservative used is usually 0.1 to 3% by weight, preferably 0.2 to 2% by weight in the herbicidal agrochemical composition.

  The pH adjuster is not particularly limited as long as it is usually used for agricultural chemicals. For example, inorganic acids such as phosphoric acid; organic acids such as citric acid, phthalic acid, and succinic acid; sodium citrate, phthalic acid Organic metal salts such as potassium hydrogen; inorganic metal salts such as disodium hydrogen phosphate, sodium dihydrogen phosphate, dipotassium hydrogen phosphate, potassium dihydrogen phosphate, sodium carbonate, potassium carbonate, sodium borate; water Examples thereof include hydroxides such as sodium oxide and potassium hydroxide; and organic amines such as triethanolamine. Preferred are inorganic acids, inorganic metal salts or hydroxides, and more preferred. These include hydrochloric acid, citric acid, succinic acid, sodium hydroxide, potassium hydroxide or sodium carbonate. Moreover, the pH adjuster used can use 1 type (s) or 2 or more types together.

Next, the manufacturing method of the aqueous suspension agricultural chemical composition of this invention is demonstrated.
The agrochemical composition of the present invention can be produced by a known formulation process such as mixing, pulverization, granulation, and drying, which is used in the production of ordinary agrochemical formulations. For example, when wet pulverizing an agrochemical active ingredient, add the pesticidal active ingredient, surfactant and antifoaming agent to water, mix and suspend, and then use a wet pulverizer as described below to obtain a predetermined particle size. The aqueous suspension pesticide composition of the present invention is then homogenized by adding a mixture that has been added, mixed, dispersed and dissolved in advance, and then adjusting the pH of the composition with a pH adjuster. Can be obtained. In addition, for example, a suspension obtained by wet-grinding an agrochemical active ingredient is added with a surfactant, a binder and a bulking agent to obtain steps such as kneading, granulating, drying, sizing and sieving. A granular agrochemical composition can be obtained.

For example, an attrition mill such as Attritor (registered trademark) (Mitsui Mine Co., Ltd.); Dinomill (registered trademark) (Shinmaru Enterprises Co., Ltd.), Research Lab ^TM (Shinmaru Enterprises Co., Ltd.). )), Sand Grinder (registered trademark) (Igarashi Machine Manufacturing Co., Ltd.), Apex Mill (registered trademark) (Kotobuki Giken Co., Ltd.), Super Apex Mill (registered trademark) (Kotobuki Giken Kogyo Co., Ltd.), Ultra Apex Mill (registered trademark) (Kotobuki Giken Kogyo Co., Ltd.), Diamond Fine Mill (registered trademark) (Mitsubishi Heavy Industries, Ltd.), Coball Mill (registered trademark) (Shinko Pantech Co., Ltd.), Dries Velke Pearl Mill ( Nippon Eirich Co., Ltd.) and other bead mills; Colloid Mill (registered trademark) (Special Mechanics Co., Ltd.), Wet A hammer mill such as Tomizer (registered trademark) (Fuji Paudal Co., Ltd.) can be used.

  The pulverization of the active ingredient is not limited to wet pulverization. For example, if necessary, the active ingredient is mixed with a mineral carrier and other auxiliary agents, and pulverized to a predetermined particle size using a dry pulverizer. Is also possible. The obtained pulverized product is suspended and dispersed in water together with a surfactant, antifoaming agent, thickener, antifreeze agent, antibacterial agent and other auxiliary agents, and mixed and homogenized. The aqueous suspension agricultural chemical composition of the invention can be obtained.

Examples of the dry pulverizer include jet mills such as SK-Jet O-mill (registered trademark) (Seishin company), single-track jet mill (registered trademark) (Seisin company); ACM pulperizer ( (Registered trademark) (Hosokawa Micron Co., Ltd.), sample mill ^TM (Fuji Powder Co., Ltd.) and other hammer mills; pin mill (registered trademark); ball mill (registered trademark); turbo mill (registered trademark) and the like.

Furthermore, the grinding | pulverization of an agrochemical active ingredient can combine suitably the grinding | pulverization by each of these grinders. For example, after preliminarily pulverizing with a wet pulverizer such as a colloid mill ^TM or a wet atomizer (registered trademark), the active ingredient previously pulverized with a bead mill or preliminarily dry pulverized is suspended in water together with a surfactant and an antifoaming agent. It is possible to turbidly disperse and further finely pulverize this using the above-mentioned wet pulverizer. It is also possible to pre-pulverize with a batch-type pulverizer such as Attritor (registered trademark) and then finely pulverize with a continuous bead mill.

The degree of pulverization of the agrochemical active ingredient is usually pulverized so that the majority of the active ingredient is 10 μm or less in both wet pulverization and dry pulverization, and preferably has a weight median diameter of 0.1 to 5 μm. Grind to become.
The aqueous suspension pesticide composition of the present invention can usually be used as an irrigation treatment agent, a foliage treatment agent or a direct spraying agent. When the prepared aqueous suspension pesticide composition is diluted to produce an aqueous composition containing a pesticide solution, in addition to the above water, agricultural water, industrial water, well water, tap water, etc. It can be used as long as the function and performance are not impaired. The dilution rate in preparing the aqueous composition can be appropriately selected and used depending on the crop, soil, and the like to be used, but is 10 to 5000 times, preferably 50 to 2000 times. be able to.

  When used for irrigation treatment or foliage treatment, depending on the type and content of the active ingredient, a dilute solution of an agrochemical solution diluted with water to about 100 to 5000 times is generally sprayed. Moreover, you may spray the dilution liquid of the agrochemical liquid diluted with water about 10 to 1000 times in the air with a helicopter. Also, when used directly for spraying, pesticide solution is put into a 100-1000 mL plastic bottle with a hole in the inner stopper, and transferred directly as it is without dilution. Machine spraying with a medicine discharge device, radio controlled boat, unmanned helicopter, etc. However, it is not limited to these. Moreover, the application amount and application time of the aqueous suspension pesticide composition and the aqueous composition containing the aqueous suspension pesticide composition can be appropriately determined according to the active ingredient of the agricultural chemical to be blended.

  The composition and control method of the present invention are effective against, for example, the following types of plant pests and weeds. Examples of specific pests to be controlled by the present invention are shown below.

Plant diseases include, for example, rice blast (Pyricularia oryzae), blight (Thanatephorus cucumeris), sesame leaf blight (Cochliobolus miyabeanus), idiotic seedling (Gibberella fujikurum seedling) spp., Trichoderma spp., Rhizopus spp., Rhizoctonia solani, etc., rice mildew (Claviceps virens), smut (Tilletia barelayana); tritici), rust (Puccinia striformis); Pu ccinia graminis, Puccinia recondita, Puccinia hordei), Madarahabyo (Pyrenophora graminea), net blotch (Pyrenophora teres), Fusarium head blight (Fusarium graminearum, Fusarium culmorum, Fusarium avenaceum, Microdochium nivale), snow mold (Typhula incarnata, Typhula ishikariiensis, Micronetriella nivalis), naked scab (Ustilago nuda, Ustilago tritici, Ustilago nigra, Ustilago avenae), Tuna gules , Tilletia panicicii), eye spot disease (Pseudocercosporella herpotrichoides), strain rot (Rhizoctonia ceralis), cloud disease (Rhynosporium secalis), leaf blight (Septor disease) spp., Pythium spp., Rhizoctonia spp., Septoria nodorum, Pyrenophora spr., Gaemannomyces graminis disease, Colletotrichum olamine disease liobolus sativus); corn Fusarium head blight (such as Fusarium graminearum), seedling blight (Fusarium avenaceum, Penicillium spp, Pythium spp. , Rhizoctonia spp, rust disease (Puccinia sorghi), sesame leaf blight (Cochliobolus heterostrohus), smut (Ustilago Mayolism), anthracnose (Colletotrichum gram) viticola), rust disease (Phakopsora ampelopsidis), powdery mildew (Uncinula necator), black rot (Elsinoe ampelina), late rot (Glomerella cinulata), black rot (Guibivalh disease) soot Spot disease (Zygophiala jamaicensis), gray mold disease (Botrytis cinereaa), shoot blight (Diaporthedium medusaea), purple leaf blight (Helicobasidium mumpa), white scab (Reselliria cinerea) disease , Black spot disease (Venturia inaequalis), spotted leaf defoliation (Alternaria alternata), red star disease (Gymnosporadium yamadae), Monilia disease (speech) Colletotrichum accutatum, soot spot disease (Zygophiala jamaicensis), soot spot disease (Gloodes pomigena), black spot disease (Mycosphaerella pomigen), purple herb disease Diseases (Phomopsis mary, Diaporthe tanakae), Brown spot disease (Diplocarpon mary); Pear black spot disease (Alternaria alternata (Japan) pear pathotype), Black streak disease (V) Physalospo a piricola), blight (Diaporthe medusaea, Diaporthe eres), pears of late blight (Phytophthora cactorum); peach scab (Cladosporium carpophilum), Phomopsis rot (Phomopsis sp. ), Plague (Phytophthora sp.), Anthracnose (Gloeosporium laeticcolor); sweet potato anthracnose (Glomerella kunuano), larvae (Monilinia kurokki); ), Deciduous leaf disease (Cercospora kaki; Mycosphaerella nawae), powdery mildew (Phyllactinia kakikora); citrus black spot disease (Diaportheum citrus), green mold disease (Penicillium, ginger disease) ); Tomato, ki Botrytis cinerea, such as cucumber, beans, strawberry, potato, cabbage, eggplant, lettuce; Sclerotinia sclerotiorum, such as tomato, cucumber, legume, strawberry, potato, rapeseed, cabbage, eggplant, lettuce; Seedling blight of various vegetables such as tomato, cucumber, beans, radish, watermelon, eggplant, rapeseed, green pepper, spinach, sugar beet (Rhizoctonia spp., Phythium spp., Phythophthora spp., Phythophthora spp., Sclerotiri) Downy mildew (Pseudoperonospora cubensis), powdery mildew (Sphaerotheca fuliginea), charcoal Disease (Colletotrichum lagenarium), vine blight (Mycosphaerella melonis), Fusarium disease (Fusarium oxysporum), plague (Phytophthora parasitica, Phytophthora melonis, Phytophthora nicotianae, Phytophthora drechsleri, Phytophthora capsici, etc.); tomato early blight (Alternaria solani) , Leaf mold (Cladosporium fulvam), plague (Phytophthora infestans), wilt (Fusarium oxysporum), root rot (Phythium myriotylum), Pythium diss tocum), anthracnose (Colletotrichum phomoides); powdery mildew of eggplant (such as Sphaerotheca furiginea); brassicae), cruciferous vegetable black spot (Alternaria brassicae, etc.), white spot (Cercosporella brassicae), root rot (Leptospheria maculasansa), root-knot (Plasmodiophora brasicaceae) Rot of cabbage (Rhizoctonia solani), yellow rot (Fusarium oxysporum); cabbage buttocks rot (Rhizoctonia solani); yellow rot (Verticillium dahlie); porri), white silk disease (Sclerotium olfsii.). Sclerotium rolfsiii, Phytophthora porrii; Soybean purpura (Cercospora kikutrophii), black spot (Elsinoe glycolnes), black spot (Diaporthe phlothonia) , Downy mildew (Peronospora manchurica), rust (Phakopsora pachyrhizi), anthracnose (Colletotrichum truncatum), anthracnose of green beans (Colletotrichum lindemuerium blackberry) tum), brown spot disease (Cercospora arachidicola); Pea powdery mildew (Erysiphe pisi); downy mildew (Peronospora vicii); broad bean downy mildew (Peronospora viciiae); plague Alternaria solani), black rot (Rhizoctonia solani), plague (Phytophthora infestans), silver scab (Sponyloclaium atrosor, sorghum), dry rot (Fusarium oxysporum, sorghum) Spot disease (Cercosp ra beticola), downy mildew (Peronospora schachtii), black root disease (Aphanomices cochioides), potato batter (Alternaria dauci); strawberry powdery mildew (Alternaria dauci); (Phytophthora nicotianae), Anthracnose (Glomerella singulata), Fruit rot (Phythium ultramum Trow var.ultimum); Chamodium rice rot (Exobasidium reticulatum), White scab (Elisco) Disease (Pestalo iopsis longiseta); tobacco gymnosporangium (Alternaria alternata
(Tobacco pathotype)), powdery mildew (Erysiphe cichoracerarum), anthracnose (Colletotrichum tabacum), plague (Phytophthora parasitica); Diseases (Diplocarpon rosae), powdery mildew (Sphaerotheca pansosa), plague (Phytophthora agars), downy mildew (Peronospora shirashira) Phy ophthora cactorum); or buckwheat brown patch disease (Rhizoctonia solani), dollar spot disease (Sclerotinia homoeocarpa), curvularia leaf blight (Curvaria geniculata), rust disease (Pucinmin disease) ), Cloud disease (Rhynchosporium secalis), withering disease (Gaemannomyces graminis), anthrax (Colletotrichum graminicola), snow rot brown granule nuclei (Typhula incarnata), snow rot black syrup ul sul Sclerosis TINIA borealis), such as fairy ring (Marasmius oreades), Pythium diseases (such as Pythium aphanidermatum) but the like, but is not limited thereto.

In addition, examples of the pests include, for example, Hari nematode: ANGUINIDAE, Bengrass nematode (Anguina agritis), Wheat nematode (Anguina tritici), Imogusaresenchu (Dylenchus destructor), and YL. Pratylenchenidae, such as Tyrenchorhynchus martini and Tyrenchorhynchus sp., Hirschmanniella imamuri, Rice Henrimuchu schmanniella oryzae), South Negu Saleh nematode (Pratylenchus coffeae), lily of the valley Negu Saleh nematode (Pratylenchus convallariae), chrysanthemum Negu Saleh nematode (Pratylenchus fallax), tea Negu Saleh nematode (Pratylenchus loosi), wheat Negu Saleh nematode (Pratylenchus neglectus), Northern Negu Saleh nematode (Pratylenchus penntrans), Negusaresenchu (Pratylenchus sp.), Etc., as HOPLOLAMIDAE, Namila nematode (Helicotyrenchus dihystera), Chara nematode (Helicotyl) chus erythrinae), helix nematode (Helicotylenchus sp.), spider nematode (Hopolaimus sp.), narcissus nematode (Rotylenchulus reniformis), ER Cistode nematode (Cactodera cacti), Nematocyst nematode (Cryphodera sp.), Potato cyst nematode (Globodera rostochiensis), Rice cyst nematode (heterodera elachista), Soybean cyst nematode (heter) dera glycines), such as clover cyst nematode (heterodera trifolii), as MELOIDOGYNIDAE, Arena rear root-knot nematode (Meloidogyne arenaria), camellia root-knot nematode (Meloidogyne camelliae), grass root-knot nematode (Meloidogyne graminis), northern root-knot nematode (Meloidogyne hapla), sweet potato root-knot nematode (Meloidogyne incognita ), Meloidogyne sp. ), Etc., DOLYLAIMIDA: As LONGIDORIDAE, Klongagarus nematode (Longidorus martini), Nagaridoris sp., American oak nematode, , TRICHODORIDAE, Trichodorus sp., Etc., Acarina: TARSONEMIDAE, Polyphagotarsononemus latus, Stenotarsalemus Tau, A. tei), etc., as PYEMOTIDAE, such as Shiramidani (Pyemotes ventricosus), as EUPODIDAE, such as Mugidani (Penthaleus major), as TENUIPALPIDAE, grapes Hime spider mite (Brevipalpus lewisi), Chanohimehadani (Brevipalpus obovatus), Pineapple Princess spider mite (Dolichotetranychus florodanus), Kakihimehadani (Tenuipalpus zhizhilashivilia), etc., as TUCKERELLIDAE, Nukekena spider mite (Tuckerella pavoniformis), etc., as TETRANYCHIDAE, Clover spider mite (Bryobia pr) etiosa), fake clover mites (Bryobia rubrioculus), Anzuhadani (Eotetranychus boreus), Michinokuhadani (Eotetranychus geniculatus), Kurihadani (Eotetranychus pruni), Kono white spider mites (Eotetranychus sexmanaculatus), Smith spider mites (Eotetranychus smithi), Kurumihadani (Eotetranychus uncatus) , Oligonychus handoensis, Oligonychus ilicis, Oligonychus karamatus, Panonychus cit i), apple tick (Penonychus ulmi), tetanychus cinnabarinus, kanazawa tick (Tetanychus kanzawai), mite spider mite (Tetanychus urticae), mite spider mite (T) Aceria tulipae, Acarops pelekassi, Prunus mite (Aculus fockei), Acarus schlettendali, Calacarus carinata lepitrimerus vitis), Nashisabidani (Epitrimerus pyri), such as false pear rust mite (Eriophyes chibaensis), as ACARIDAE, Ashibutokonadani (Acarus siro), Mugikonadani (Aleuroglyphus ovatus), the bulb mite, Rhizoglyphus (Rhizoglyphus robini), such as Tyrophagus (Tyrophagus putrescentiae), Thysanura ( THYSANURA): LEPISMATIDAE, Yamato Shimi (Ctenolepisma villosa), Seimitsu Shimi (Lepisma saccharina), Spotted Shirami (Thermobia domestica), etc. As TIDAE, American cockroach (Periplaneta americana), black cockroach (Periplaneta fuliginosa), such as Yamato cockroach (Periplaneta japonica), as BLATTELLIDAE, German cockroach (Blattella germanica), such as Princess German cockroach (Blattella lituricollis), as TETTIGONIIDAE, Himekusakiri (Homorocoryphus jezoensis), As GRYLLOTALPIDAE, such as Homocoryophys lineeosus, Kelly (Gryllotalpa sp. ), Etc. As ACIDIDAE, white ant (Oxya estroensis), termite (us), ant territory (ISO), ant territory (Coptermes domesticus), Formosanus, etc., THYSANOPTERA: As THRIPIDA, Asahitrips obscurus, Chirophips manicatus, Drosophila thrips hrips minowai), Hirazuhanaazamiuma (Frankliniella intonsa), lily flower thrips (Frankliniella lilivora), Croton thrips (Heliothrips haemorrhoidalis), Cosmos thrips (Microcephalothrips abdominalis), soybean thrips (Mycterothrips glycines), mulberry thrips (Pseudodendrothrips mori), yellow tea thrips ( Scirtotrips dorsalis), Acacia thrips (Selenotrips rubricinctus), Rice thrips (Stenchaetrips biformis), Ne Black thrips (Thrips alliorum), loquat Hana thrips (Thrips coloratus), Yellow Hana thrips (Thrips Flavas), Hana thrips (Thrips hawaiiensis), Japanese black Hana thrips (Thrips nigropilosus), Thrips palmi (Thrips palmi), western flower thrips ( Frankliniella occidentalis), Thrips setosus, Trips tabici, and Thulus thipidae. Kuda thrips (Haplothrips chinensis), Hana Kedah thrips (Haplothrips kurdjumovi), clover Kedah thrips (Haplothrips nigar), CHILLY tailed Kedah thrips ((Leeuwania pasanii), box Kedah thrips (Liothrips flordensis), Yuri Nokuda thrips (Liothrips vaneeckei), CHILLY Hemi IPTERA: PENTATOMIDAE, Carpocuris puroporispuris, Carpocurispuropurispuris, Carpocurispuropurispas Chihigekamemushi (Dolycoris baccarum), Himenagame (Eurydema pulchrum), longer (Eurydema rugosum), Mar Shirahoshi stink bug (Eysarcoris guttiger), giant thorns Shirahoshi bug (Eysarcoris lewisi), thorns Shirahoshi bug (Eysarcoris parvus), Shirahoshi stink bug (Eysarcoris ventralis), Blue-headed stink bug (Glaucias subpunctus), Red-headed bug (Graphosoma rubrolineatum), Red-headed bug (Halomomorpha mista), Rice-headed bug (Lagynotomus elongatus)
Red beetle (Nezara antenta), Southern blue beetle (Nezara viridula), Japanese beetle (Piezodorus hybneri), Chinese red beetle (Platia stali), Japanese black beetle (S)
Such as Iwasaki stink bug (Stariodes iwasakii), as COREIDAE, nightshade stink bug (Acanthocoris sordidus), giant spiders helicopter stink bug (Anacanthocoris striicornis), bombardier Hari bug (Cletus punctiger), Hime Hari stink bug (Cletus trigonus), giant helicopter stink bug (Molipteryx fulginosa) ALYDIDAE, Leptocorisa acuta, Leptocorisa chinensis, Leptocorisa oratorius, Riptoratus, etc. , As RHOPALIDAE, red Hime helicopter stink bug (Aeschynteles maculatus), such as keyhole Hime helicopter stink bug (Liorhyssus hyalinus), as LYGAEIDAE, Kan mantis shrimp spring Naga bug (Cavelerius saccharivorus), bombardier co-spring Naga bug (Macropes obnubilus), Hirata gourd Naga stink bug (Pachybrachius luridus PYRRHOCORIDAE, Dysdercus cingulatus, Dyderdercus cingulatus D, etc. s poecilus), etc., as TINGIDAE, Kikugunbai (Galeatus spinifrons), Yanagigunbai (Metasalis populi), Kusugunbai (Stephanitis fasciicarina), Nashigunbai (Stephanitis sashi), Tsutsujigunbai (Stephanitis pyrioides), Himegunbai (Uhlerites debile), Kurumigunbai (Uhlerites latius), MIRIDAE, Adelphocoris lineolatus, Spotted brown turtle (Adelphocoris trianulatus), Coreo luculum (Apolygus lucorum), Tsumaguroa Kasumikame (Apolygus spinolai), red Hoshi Kasumi turtle (Creontiades pallidifer), tobacco Miridae (Cyrtopeltis tennuis), giant black Tobi Miridae (Ectometopterus micantulus), Black Kite Kasumi turtle (Halticiellus insularis), apple black Kasumi turtle (Heterocordylus flavipes), Makiba Miridae (Lygus disponsi ), Spotted turtle (Lygus saundersi), sugar beet turtle (orthotylus flavosparsus), wheat turtle (Stenodema calcaratum), stag beetle turtle (Stenotos binotat) us), red streaks Kasumi turtle (Stenotus rubrovittatus), mouse Mont green Miridae (Taylorilygus pallidulus), Trigonotylus caelestialium (Trigonotylus coelestialium), etc., as CICADIDAE, such as the large brown cicada (Graptopsaltria nigrofuscata), as APHROPHORIDAE, Maekiawafuki (Aphrophora costalis), Matsuawafuki (Aphrophora flavipes), grape awafuki (Aphrophora intermedia), himefutentenagawafuki (Clovia punctata), Hosoawafuki (Philaenus spumarius), etc., TET IGELLIDAE, such as Bothrogonia japonica and Cicellaella viridis, and CICADELLIDAE, Aguriahana cucumber, Ane, H. Arboridia apicaris, Edwardsiana flavescens, Edwardsiana roseae, Empoasca abietis, Emposca ai i Fences (Thaia subrufa), oranges Hime such as leafhoppers (Zyginella citri), as DELTOCEPHALIDAE, lid Ten leafhopper (Macrosteles fascifrons), green rice leafhopper (Nephotettix cincticeps), cross di leafhopper (Nephotettix nigropictus), Taiwan green rice leafhopper (Nephotettix virescens), apple spotted leafhopper (Orientus ishidai), Inazuma Dorsalis, Sorhoanus tritici, Swanusetixix subfusculus, etc., and DELPHACIDAE Te, small brown planthopper (Laodelphax striatellus), brown planthopper (Nilaparvata lugens), sugar Roh Humpback planthopper (Numata muiri), corn planthopper (Peregrinus maidis), Crofts Roh planthoppers (Perkinsiella saccharicida), Sejirounka (Sogatella furcifera), Hieunka (Sogatella panicicola), etc. , PSYLLIDAE, Anomeura mori, Calophia nigridorsalis, Diaphorina citri, Mesohomomomoto Todokijirami (Psylla abieti), Han'nokijirami (Psylla alni), Yamatokijirami (Psylla jamatonica), Ringokijirami (Psylla mali), black apple pheasant Rami (Psylla malivorella), Nashijikirami (Psylla pyrisuga), Toberakijirami (Psylla tobirae), hex Kurtosis pheasant Lami (Trioza camphorae), Tritoza quarcicola, and other ALEYRODIDAEs, Alecananthus spiniferus, Grape whitefly (Aleolobusus mirabilae) Lice (Dialeurodes citri), Onitsunajirami (Trialeurodes vaporiarum), Silverleaf whiteflies, etc. (Geoica lucifuga) and other APHIDIDAEs include pea aphid, Aphis citricola, Aphis caccivora, and Aphid aphid. farinose yanagicola), cotton aphid (Aphis gossypii), potato aphid (Aulacorthum solani), wheat straw chrysanthemum Omar aphid (Brachycaudus helichrysi), radish aphid (Brevicoryne brassicae), Tulip phylloxera (Dysaphis tulipae), birch cotton butterbur spotted aphid (Euceraphis punctipennis ), Hypotterus pruni, Yellow pea aphid (Lipaphis erysimi), Chrysanthemum aphid (Macrosifoniella samboni), Tulip genus aphid Shi (Macrosiphum euphorbiae), broad bean aphid (Megoura crassicauda), without Coffs key aphid (Melanaphis siphonella), apple Cobb aphid (Myzus malisuctus), plum Cobb aphid (Myzus mumecola), green peach aphid (Myzus persicae), green onion aphid (Neotoxoptera formosana), apple midori aphids (Ovatus malicolens), husubirea aphid (Rhopalosophum nymphaeae), rhinobola aphid (Rhopalosophum padi), rhodopodophyllum inalis, Aphid (Sappaphis piri), Nashiburamushi (Schizophis piricola), Aphidia aphid (Sitobion akebiae), tera aphid Peach aphids (Tuberocephalus momonis), Taiwancega aphids (Uroeucon formosanum), MARGARODIDAE, Dwarfia corporenta, Iceria scales (Icerasia, etc.) As DOCOCCIDAE, Matsumoto mealybugs (Crisicoccus matsumotoi), pine mealybug (Crisicoccus pini), without mealybugs (Dysmicoccus wistariae), mandarin orange mealybug (Planococcus citri), mealybug (Planococcus kranuhiae), mandarin orange Hime mealybugs (Pseudococcus citriculus ), Pseudococcus comstock, etc., as COCCIDAE, horned beetle (Ceroplastes ceriferus), ruby weevil (Ceroplastes rubens), citrus larvae (C) occus discrepans), Hirata Kata scale insects (Coccus hesperidum), citrus Kata scale insects (Coccus pseudomagnoliarum), Ibotaroumushi (Ericerus pela), Mizuki Kata scale insects (Lecanium corni), tea Roh Kata scale insects (Lecanium persicae), mandarin orange cotton scale insects (Pulvinaria aurantii), Mandarin orange
DIASPIDIDAE, such as Pulvinaria citricola, Pulvinaria kuwacola, and so on, Asapisidashia, Aondiella auridai, Aonidiella aur
Aphidial cigarette (Aonidiella citrus), Asperiotus destructor, Asperiodus aphidus os moth Aphididae, scalloped moth, Spicy spider moth claviger), citrus scale insect (Lepidosaphes beckii), apple oyster scale scale (Lepidosaphes ulmi), white scale scale insect (Lepholeucaspis japonica), nacyclotype scale scale oreopsis pyri), camellia pteridae (Parlatoria camellia), pteroleum aphididae (Parlatoria zeiphi) Pseudaonidia paeonia), stag beetle (Pseudauracapsis pentagona), beetle scale (Pseudalucaspis punicola), worm scale (Unaspis yanonsis) A): bat moth (Endoclyta excrecens), yellow bat (Endoclyta sinensis), white bat (Palpifer sexota or physic physica) Ringworm (Archips brevipicanus), Midarekakumonmonmakaki (Archips fuscocuppreanus), Kakimon-ohamiki (Archips xylostaneus), Rabbitfish (Pacta furan) Miga (Cydia kurokoi), chestnut green sink bur (Eucoenogenes aestuosa), oriental fruit moth (Grapholita molesta), Chahamaki (Homona magnanima), apple fruit moth (Hoshimoa adumbratana), soybean pod borer, Leguminivora glycinivorella (Leguminivora glycinivorella), Azukisayamushiga (Matsumuraeses azukivora), Daizusayamushiga ( Matsumuraeses falcana, Matsumuraeses phaseli, Apples, Spilonota lechriaspis, Spironota ocellana, Bud Eupoecilia ambiguella, Kwaihoso umami (Phalonidia mesotypa), Artemisia vulgaris (Pheochloroides clinestina), Minoga (Bambalina sp. ), Oominoga (Eumeta japonica), Chaminoga (Eumeta minuscule), carvings (Nemapogon granellus), clothes moth (Tinea translucens), Nashichibiga (Bucculatrix pyricorella), Momohamoguriga (Lyonetia clerkella), Gin Mont leafminer (Lyonetia prunifoliella), Mamehosoga (Caloptilia soyella ), Chalothosiga (Caloptilia zeivosa), Oyster hosoga (Choptipes diospyrosella), Kinmonhosoga (Phyllonolycter lingonella), Nashihoso (Spulerina astaurota), mandarin orange leafminer (Phyllocnistis citrella), grape leafminer (Phyllocnistis toparcha), Negikoga (Acrolepiopsis sapporensis), yam Koga (Acrolepiopsis suzukiella), diamondback moth (Plutella xylostella), apple Hime sink Lee (Argyresthia conjugella), grapes Sukashiba ( Paranthrene regalis, Cosca shiba (Synanthedon hector), Kakinoheta mushiga (Stathmopoda masinissa), Japanese mosquito (Brachimia triannulella), Peach tiger moth (Ca posina niponensis), apple moth black bar (Illiberis pruni), Kuroshitaaoiraga (Lotoia sinica), monema flavescens (Monema flavescens), Nashiiraga (Narosoideus flavidorsalis), Aoiraga (Parasa consocia), Himekuroiraga (Scopelodes contracus), rice stem borer (Chilo suppressalis), leaf roller ( Cnaphalocrosis medinalis), Conogethes puntiferials, Cotton moth, Diaphania indica, Ectomyelois pyrivorella Ephestia kühniella, Eleuella zinkkenella, iexa algae, eu, Mera, Glyphodes pyloalis Maruca testulalis, Cotton moth (Nottarcha derogate), Green moth (Ostrinia furnacalis), Azukino moth (Ostrinia scapularis), Ostrinia zapa tei Tega rella), Ukon'nomeiga (Pleuroptya ruralis), Sankameiga (Scirpophaga incertulas), parnara guttata (Parnara guttata), Papilio Helenus (Papilio helenus), the common yellow swallowtail (Papilio machaon hippocrates), swallowtail (Papilio xuthus), Colias erate (Colias erate poliographus), cabbage butterfly ( Pieris rapae crucivora, Lampids boeticus, Prunus serrata (Agerona prunaria), Ascotis sennaria, squirrel buoy tum), Umeedashaku (Cystidia couaggaria), pine moth (Dendrolimus spectabilis), lackey moth (Malacosoma neustria testacea), Ringokareha (Odonestis pruni japonensis), Cephonodes Hylas (Cephonodes hylas), grapes sparrows (Acosmeryx castanea), Tsuyama red killer whale pike (Clostera anachoreta) , Crestera anastomosis, Monarch killer whale (Phalera flavescens), Greater tiger killer whale (Phalerodonta mannleyi), Orchard moth (Stauropus fagi persi) ilis), Arna Pseudoconspersa (Euproctis pseudoconspersa), Monshirodokuga (Euproctis similes), tussock (Euproctis subflava), gypsy moth (Lymantria dispar), orgyia thyellina (Orgyia thyellina), the United States white Arctiidae (Hyphantria cunea), mulberry tiger moth (Spilosoma imparilis), Honey beetle (Acanthoplusia agnata), akajiroshitaba (Aedia leucomelas), agaricus (Agrotis sipetum), cabbage moth (Agrotis segetum), red-bellied moth (Anomis estagona) grapha nigrisigna), Trichoplusia ni (Trichoplusia ni), cotton bollworm (Helicoverpa armigera), tobacco budworm (Helicoverpa assulta), Heliothis maritima (Heliothis maritime), cabbage armyworm (Mamestra brassicae), Futaobikoyaga (Naranga aenescens), armyworm (Pseudaletia separata), Ineyotou ( Sesamia inferens, Spodoptera deprava, Spodoptera exigua, Spodoptera litura, Trikenea teredain a), Nashikenmon (Vimnia rumicis), Shiromonagaga (Xestia c-nigurum), Coleoptera (Coleoptera), Adoretus tenamua cucumber (Anoretus tenumuculatus), Douganebububu (Anomala cucumber) Eumetonia roelofsi, Heptophylla picea, Melonthonia japonica, Mimela splendens, Oxycetoniae Main circle beetle (Anthrenus verbasci), Hime beetle (Attagenus unicolor japonicus), cigarette beetle (Lasioderma serricorne), Hirata beetle (Lyctus brunneus), Guy My Deo kiss Lee (Carpophilus dimidiatus), clear Keshikisui (Carpophilus hemipterus), giant beetle, Epilachna ya Hoshi Tento (Epilachna vigintioctomacula), Nijuya hoshi tentou (Epilachna vigintioctopuncta), Japanese algae (Alphitobius laevigatatus), Nearumidae , Princess red flour beetle (Palorus ratzeburgii), co-Hime red flour beetle (Palorus
subdepressus), Tenebrio molitor, Tribolium castanum, Tribolium confusum, Epicahri maki (Epica maki)
Gomadarakamikiri (Anoplophora malasiaca), Japanese pine sawyer (Monochamus alternatus), Kiboshi beetle (Psacothea hilaris), grapes tiger beetle (Xylotrechus pyrrhoderus), Blue streaks Beetle (Xystrocena globosa), adzuki bean weevil (Callosobruchus chinensis), cucurbit leaf beetle (Aulacophara femoralis), brown Monkey potato beetle (Basilepta balii), potato beetle (Cassida nebulosa), beetle potato beetle (Chaetocnema concinna), tuber beetle (Colasosoma dauricum) Binagahamushi (Crioceris quatuordecimpunctata), Inenekuihamushi (Donacia provosti), Rurihamushi (Linaeidea aenea), Kiashinomihamushi (Luperomorpha tunebrosa), lid streaks Anthrenus Beetle (Medythia nigrobilineata), Inedorooimushi (Oulema oryzae), Anthrenus key spring monkey Beetle (Pagria signata), Japanese radish beetle (Phaedon brassicae), Phyllotretta striola, Japanese beetle weevil (Involvulus cupreus), Japanese beetle weevil (Rhynchites heros), Arimodoki weevil las formicarius), apple weevil (Anthonomus pomorum), die consulting weevil (Ceuthorhynchidius albosuturalis), chestnut weevil (Curculio sikkimenesis), rice weevil (Echinocnemus squameus), Imozoumushi (Euscepes postfasciatus), clover weevil (Hypera nigrirostris), alfalfa weevil (Hypera postica), Rice weevil (Lissohoptrus oryzophilus), Yasai weevil (Listroderes costirostris), Apple weevil (Phyllobius ar Masuus, Citrobium weevil (Sitona japonicus), Butterflies weevil (Sitophilus oryzae), Butterfly weevil (Sitophilus zeamais), Bamboo weevil (Sphaphirus venatas) Rosae tuficornis, Arge mary, Arge paganas, Dripotesmus kuriphilus, etc. Diptera: Dipterae tis), soybean pod gall midge (Asphondylia sp. ), Melon fly (Dacus cucurbitae), oriental fruit fly (Dacus dorsalis), Mikanbae (Dacus tsuneonis), cherry Leaf Spot fruit fly (Rhacochlaena japonica), Inemigiwabae (Hydrellia griseola), rice click Kimi Giwa fly (Hydrellia sasakii), cherry fruit fly (Drosophila suzukii), Rice fly (Chlorops oryzae), Wheat fly (Meromuza nigriventris), Rice fly (Agromyza oryzae), Brown fly (Chromatomia horticola), Eggplant Formic leafminer (Liriomyza chinensis), legume leafminer (Liriomyza trifolii), tomato leafminer (Liriomyza sativae), reed Gros leafminer (Liriomyza huidobrensis), onion maggot (Delia antiqua), seedcorn maggot (Delia platura), sugar beet diving Hana fly (Pegomya cunicularia), House flies (Musca domestica), Black flies (Formia regina), Culex pipiens parallels quillett, Chikae pikenes (Culex pipiens molestus Forscal) eles) sinensis Wiedemann), Aedes albopictus (Aedes albopictus (Skuse)) but the like, but is not limited thereto.

  In addition, as weeds, various weeds that are problematic in paddy fields, for example, grasses such as Tainubie; broad-leaved weeds such as Azena, Azepera, Kakashigusa, Mizo-Hakobe, Abnome, Himeisohagi, Konagi; Tagagayatsuri, firefly, Matsubai, Cypridaceae weeds such as Sphagnum, Shizui, Krogwai; and various weeds such as Urikawa, Omodaka, Heramodaka, various weeds that are problematic in non-agricultural land, upland fields and orchards, such as Indusius and Datura Chrysanthemum weeds, mallow weeds such as Ichibibi and American stag beetle, convolvulaceae weeds such as Marva morning glory and convolvulaceae, amaranthid weeds such as barnyard grass and blue-legged dragonfly, chrysanthemum such as onamomi, ragweed, burdock and himejoon Department Grasses, cruciferous weeds such as mustard and nazuna, red crustaceae weeds such as white and red azaleas, violet weeds such as field pansies, red weeds such as chickweed, white legumes such as white clover, cusanem and shrimp , Aceraceae weeds such as Prunus serrata, Ganoderma weeds such as Giant euphorbia, Lamiaceae weeds such as Photonosa, Euphorbiaceae weeds such as Coleoptera, Inhibiae, Siberian sorghum, Crested burrowed, Crested scallop, Papaver, Vulpes Gramineous weeds such as ryegrass, sorghum and cypress, cyperaceae weeds such as white-tailed clover and yellow-headed geese, cassava weeds such as communis and cyperaceae, clover weeds such as horsetail But it is lower, but the invention is not limited thereto.

  Hereinafter, formulation examples of the agrochemical composition used in the present invention will be shown and specifically described, but the present invention is not limited to these. In the following formulation examples, “%” indicates mass%.

Example 1
1670.25 parts of pyrazolate raw material (purity 93.7%), 21.25 parts of NE-291PG (trademark) (manufactured by Nippon Emulsifier, dialkylsulfosuccinate salt) and 808.50 parts of tap water are mixed, and attritor ( Wet pulverization was performed using a registered trademark 1S type (Mitsui Metal Mining Co., Ltd.) to obtain a pyrazolate premix slurry (agrochemical active ingredient amount 62.6%). Next, 7 parts of sodium sulfate, 0.5 parts of 3N hydrochloric acid aqueous solution, 10 parts of Polyty (registered trademark) A540 (manufactured by Lion, polyacrylate) and 82.5 parts of tap water are added, mixed and dissolved, and dispersed. An agent mixture was obtained. Further, 0.5 parts of xanthan gum (Lordpole (registered trademark) 23, manufactured by Rhodia Nikka) and 99.5 parts of normal water were added and mixed to obtain a thickener mixture. 35 parts of this pyrazolate premix slurry, 30 parts of a dispersant mixture, 30 parts of a thickener mixture, 4.9 parts of normal water, and Proxel (registered trademark) GXL-S (manufactured by Arch Chemicals Japan) 0.1 Part of the mixture was added and mixed to obtain an aqueous suspended agricultural chemical composition.

Example 2
7 parts of calcium acetate monohydrate, 0.5 part of 3N hydrochloric acid aqueous solution, 10 parts of Polyty (registered trademark) A540 (made by Lion, polyacrylate) and 82.5 parts of tap water are mixed and dissolved. A dispersant mixture was obtained. Further, 0.5 parts of xanthan gum (Lordpole (registered trademark) 23, manufactured by Rhodia Nikka) and 99.5 parts of normal water were added and mixed to obtain a thickener mixture. Pyrazolate premix slurry of Example 1 (agrochemical active ingredient amount 62.6%) 35 parts, dispersant mixture 30 parts, thickener mixture 30 parts, normal water 4.9 parts and Proxel (registered trademark) GXL- 0.1 part of S (manufactured by Arch Chemicals Japan) was added and mixed to obtain an aqueous suspended agricultural chemical composition.

Example 3
7 parts of ammonium sulfate, 0.5 part of 3N hydrochloric acid aqueous solution, 10 parts of Polyty (registered trademark) A540 (manufactured by Lion, polyacrylate) and 82.5 parts of tap water are mixed and dissolved. Got. Further, 0.5 parts of xanthan gum (Lordpole (registered trademark) 23, manufactured by Rhodia Nikka) and 99.5 parts of normal water were added and mixed to obtain a thickener mixture. Pyrazolate premix slurry of Example 1 (agrochemical active ingredient amount 62.6%) 35 parts, dispersant mixture 30 parts, thickener mixture 30 parts, normal water 4.9 parts and Proxel (registered trademark) GXL- 0.1 part of S (manufactured by Arch Chemicals Japan) was added and mixed to obtain an aqueous suspended agricultural chemical composition.

Example 4
7 parts of sodium sulfate, 0.5 part of 3N hydrochloric acid aqueous solution, 10 parts of Polyty (registered trademark) A540 (manufactured by Lion, polyacrylic acid salt) and 82.5 parts of tap water are mixed and dissolved, and then mixed with a dispersant. A liquid was obtained. Further, 0.5 parts of xanthan gum (Lordpole (registered trademark) 23, manufactured by Rhodia Nikka) and 99.5 parts of normal water were added and mixed to obtain a thickener mixture. Pyrazolate premix slurry of Example 1 (agrochemical active ingredient amount 62.6%) 35 parts, dispersant mixture 30 parts, thickener mixture 30 parts, normal water 4.9 parts and Proxel (registered trademark) GXL- 0.1 part of S (manufactured by Arch Chemicals Japan) was added and mixed to obtain an aqueous suspended agricultural chemical composition.

Comparative Example 1
7 parts of sodium sulfate, 0.5 part of phosphoric acid, 10 parts of Polyty (registered trademark) A540 (manufactured by Lion, polyacrylate) and 82.5 parts of tap water are mixed and dissolved to obtain a dispersion mixture. It was. Further, 0.5 parts of xanthan gum (Lordpole (registered trademark) 23, manufactured by Rhodia Nikka) and 99.5 parts of normal water were added and mixed to obtain a thickener mixture. Pyrazolate premix slurry of Example 1 (agrochemical active ingredient amount 62.6%) 35 parts, dispersant mixture 30 parts, thickener mixture 30 parts, normal water 4.9 parts and Proxel (registered trademark) GXL- 0.1 part of S (manufactured by Arch Chemicals Japan) was added and mixed to obtain an aqueous suspended agricultural chemical composition.

Comparative Example 2
7 parts of sodium sulfate, 0.5 part of 20% aqueous citric acid solution, 10 parts of Agrisol F (registered trademark) FL-100 (manufactured by Lion, polyacrylate) and 82.5 parts of tap water were added and mixed and dissolved. A dispersant mixture was obtained. Further, 0.5 parts of xanthan gum (Lordpole (registered trademark) 23, manufactured by Rhodia Nikka) and 99.5 parts of normal water were added and mixed to obtain a thickener mixture. Pyrazolate premix slurry of Example 1 (agrochemical active ingredient amount 62.6%) 35 parts, dispersant mixture 30 parts, thickener mixture 30 parts, normal water 4.9 parts and Proxel (registered trademark) GXL- 0.1 part of S (manufactured by Arch Chemicals Japan) was added and mixed to obtain an aqueous suspended agricultural chemical composition.

Comparative Example 3
7 parts of sodium sulfate, 0.5 part of 20% aqueous citric acid solution, 10 parts of Polyty (registered trademark) A550 (manufactured by Lion, polyacrylate, stock solution pH 7-8) and 82.5 parts of tap water are mixed and dissolved. To obtain a dispersant mixture. Further, 0.5 parts of xanthan gum (Lordpole (registered trademark) 23, manufactured by Rhodia Nikka) and 99.5 parts of normal water were added and mixed to obtain a thickener mixture. Pyrazolate premix slurry of Example 1 (agrochemical active ingredient amount 62.6%) 35 parts, dispersant mixture 30 parts, thickener mixture 30 parts, normal water 4.9 parts and Proxel (registered trademark) GXL- 0.1 part of S (manufactured by Arch Chemicals Japan) was added and mixed to obtain an aqueous suspended agricultural chemical composition.

(Test example)
The aqueous suspension agricultural chemical compositions produced in Examples 1 to 4 and Comparative Examples 1 to 3 were sealed in a glass bottle and stored for 14 days in a 54 ° C. thermostat. The content of pyrazolate in the granular pesticide composition before and after aging was quantified by liquid chromatography, and the change with time was evaluated. The result was calculated from the remaining rate of pyrazolate after the lapse of time (the following formula). In addition, the presence or absence of crystal precipitation after the aging test was evaluated. The results are shown in Table 1.

  As is clear from the results of the test examples, the aqueous suspension pesticide composition according to the present invention can achieve stabilization of the pesticidal active ingredient, which has been difficult to achieve with the preparations according to known techniques listed as comparative examples, and has practicality. A high aqueous suspension pesticide composition was obtained.

  The agrochemical composition of the present invention has excellent temporal stability and is a useful formulation as an agricultural material.

Claims (9)

  (1) at least one salt selected from the group consisting of sodium sulfate, calcium acetate and ammonium sulfate, (2) at least one anionic surfactant (wherein the pH at room temperature is 5 or less), (3 A) Agrochemical composition containing hydrochloric acid and (4) at least one agrochemical active ingredient.   The agrochemical composition according to claim 1, wherein the agrochemical active ingredient is a herbicide.   The agrochemical composition according to claim 1 or 2, wherein the agrochemical active ingredient is (A1) a whitening herbicidal compound or salt thereof and / or (A2) an acetolactate synthase-inhibiting herbicidal compound or salt thereof.   The aqueous suspension agricultural chemical composition according to any one of claims 1 to 3.   The granular agrochemical composition according to any one of claims 1 to 3. (A) (4) At least one kind of active ingredient for agricultural chemicals, (5) Surfactant and (6) Water and, if necessary, (7) Other adjunct ingredients are mixed, and the resulting mixture is wet-ground. A step of preparing an active ingredient suspension slurry;
(B) (1) at least one salt selected from the group consisting of sodium sulfate, calcium acetate and ammonium sulfate, and (2) at least one anionic surfactant (wherein the pH at room temperature is 5 or less). (3) Step of mixing hydrochloric acid and (6) water to prepare a dispersant solution; (c) mixing the resulting slurry and the resulting dispersant solution, and adding the resulting mixture to the mixture as necessary. (7) The manufacturing method of the agrochemical composition of the aqueous suspension of Claim 4 including the process of mixing other adjuvant components.   An aqueous suspension agricultural chemical composition obtained by the production method of claim 6, (9) mineral fine powder, (5) surfactant and, if necessary, (7) other adjunct ingredients mixed to obtain The manufacturing method of the granular agrochemical composition of Claim 5 including the process of carrying out wet granulation of the obtained mixture.   A method for applying the aqueous suspension pesticide composition, wherein the aqueous suspension pesticide composition according to claim 4 is sprayed directly onto a paddy field.   A method for applying the granular pesticide composition, wherein the granular pesticide composition according to claim 5 is directly sprayed onto a paddy field.