WO2000004772A1 - Pesticides granulaires pour application a la surface de l'eau et supports granulaires y relatifs - Google Patents

Pesticides granulaires pour application a la surface de l'eau et supports granulaires y relatifs Download PDF

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Publication number
WO2000004772A1
WO2000004772A1 PCT/JP1999/003934 JP9903934W WO0004772A1 WO 2000004772 A1 WO2000004772 A1 WO 2000004772A1 JP 9903934 W JP9903934 W JP 9903934W WO 0004772 A1 WO0004772 A1 WO 0004772A1
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Prior art keywords
water
pesticide
granular carrier
active ingredient
organic acid
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PCT/JP1999/003934
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English (en)
Japanese (ja)
Inventor
Tsuyoshi Hirata
Akiyoshi Kawagishi
Kiyoko Tanaka
Kenji Yasui
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Sankyo Company, Limited
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Publication date
Application filed by Sankyo Company, Limited filed Critical Sankyo Company, Limited
Publication of WO2000004772A1 publication Critical patent/WO2000004772A1/fr

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/12—Powders or granules

Definitions

  • the present invention relates to a granular carrier for producing a water-applied pesticide granule containing a water-soluble solid organic acid salt and having an improved surface floating rate of an active pesticide, and the granular carrier or the water-soluble solid organic acid.
  • the present invention relates to a water-applied pesticide granule containing a salt and a water-insoluble water-insoluble pesticide active ingredient having a specific gravity of 1.0 or more and having an improved water surface floating rate of the pesticide active ingredient, or to the use of the granule as a water-applied pesticide. Things. [Background technology]
  • 1 Water-insoluble inorganic solid carrier such as bentonite, calcium carbonate, talc, clay, diatomaceous earth, gypsum, etc.
  • surfactant such as bentonite, calcium carbonate, talc, clay, diatomaceous earth, gypsum, etc.
  • Powdered or powdered pesticidal active ingredients coated with an appropriate binder are generally used.However, in the above pesticide granules, when the pesticidal active ingredient is hardly water-soluble, There is a drawback that the required amount of the active ingredient is not easily released from the granule at the required time after treatment in the paddy field, and when a pesticide active ingredient with strong soil adsorption is used, sufficient biological effects cannot be obtained. grain High concentrations of active pesticides in the vicinity of pesticides may contribute to crop damage. In addition, some pesticidal active ingredients exhibit better effects when they float on the water surface, and it is difficult for ordinary 'pesticide granules' to float the active ingredient from the sedimented particles on the water surface. .
  • urea, ammonium sulfate, ammonium nitrate, ammonium chloride, A water-soluble carrier such as potassium chloride, ammonium bicarbonate, ammonium sulfate, sodium borate, sodium carbonate, modified starch, sugar, and an inorganic or organic film-forming substance having a slower dissolution rate than a water-soluble carrier are dropped into water.
  • the water-soluble carrier first dissolves in water, the granule is studied so that the granule floats on the water surface together with the air-retentive film-forming substance holding the air in the granule.
  • both a water-soluble carrier and a film-forming substance are indispensable for floating the granules (Japanese Patent Publication No. 63-28081 and Japanese Patent Application Laid-Open No. 9-118602). .
  • Japanese Patent Application Laid-Open No. 8-175590 discloses a pesticide preparation containing a water-soluble basic pesticide active ingredient and a water-soluble organic acid salt as a sustained-release agent. Differing from the pesticide granules of the present application containing poorly water-soluble pesticide active ingredients and water-soluble solid organic acid salts
  • JP-A-6-72801 and JP-A-6-72803 disclose aromatic carboxylate, water-soluble polymer compound, and a substantially water-insoluble pesticide bulk material.
  • a composition for agrochemical solid preparations containing surfactants which improve the emulsion stability and shape stability of the preparations, and include water-soluble solid organic acid salts and water.
  • the pesticidal active ingredient of the pesticide granule containing the liquid containing the poorly soluble pesticidal active ingredient or the liquid containing the same floats on the water surface.
  • the water-soluble solid organic acid salt is added to the granular carrier to improve the water surface floating rate of the pesticidally active ingredient.
  • the present inventors have proposed that pesticide active ingredients are floated on the water surface, a required amount of pesticidal active ingredients are released at a required time, and pesticide active ingredients are not unevenly distributed near the grains due to soil adsorption.
  • Agrochemicals and granular carriers for producing the same are intensively studied, and containing a water-soluble solid organic acid salt and a liquid having a specific gravity of at least 101 containing a poorly water-soluble pesticidal active ingredient, makes it possible to produce pesticides for surface application.
  • the present invention relates to a granular carrier, a granular carrier or a water-soluble solid organic acid salt for producing a water-applied agricultural chemical granule containing a water-soluble solid organic acid salt and having an improved water surface floating rate of an agricultural chemical active ingredient.
  • Water-based pesticide containing a liquid having a specific gravity of 1.0 or more and containing a water-insoluble agrochemical active ingredient and having an improved surface surfacing rate of the pesticide active ingredient, or use of the granule as a water-applied pesticide It is.
  • the granular carrier for producing a water-applied pesticide granule having an improved pesticidal active ingredient of the present invention having an improved water surface floating rate includes a water-soluble solid organic acid salt to coat and impregnate other components. Alternatively, it is a granular carrier that improves the water surface levitation rate of a pesticidally effective component, which will be described later, of a pesticide granule applied to the water surface which is produced by absorption.
  • the pesticide granules for surface application according to the present invention are: water-soluble solid organic acid salt, which is treated in a paddy field, and once the granules settle in water, the pesticide active ingredient or the pesticide is formed within minutes to several hours.
  • water A pesticide granule that floats on the water surface at a granularity of 5 'immediately after treatment in a rice field, disintegrates with the dissolution of the organic acid salt, and releases the pesticide active ingredient to the water surface may be used.
  • the water surface levitation rate of the pesticide granules applied to the water surface of the present invention can be determined by the following method: c , an inner diameter of 6 cm, a height of 10.6 cm, an inner diameter of 4.6 cm above the cylindrical body, In a glass bottle having a screw thread of 2 cm in height, add 300 mi of 3 degree hard water, uniformly add 1 Omg of the pesticide granule for water application of the present invention, leave it at room temperature for 1 hour, and then put it on the water surface.
  • Water surface levitation rate (%) (amount of pesticide active ingredient dissolved in 2 Om 1 of collected ethyl acetate layer) ⁇ (amount of active pesticide ingredient in 1 O mg of pesticide granule) X I 00.
  • the water surface floating rate of the pesticidal active ingredient in the pesticide granules for water application according to the present invention is usually 30 to 100%, preferably 45 to 100%, more preferably 60 to 100%. ⁇ 100%.
  • the water-soluble solid organic acid salt used in the present invention includes, for example, aromatic salts such as benzoate, salicylate and phthalate, sorbate, citrate and tartrate.
  • aromatic salts such as benzoate, salicylate and phthalate, sorbate, citrate and tartrate.
  • Aliphatic carboxylate such as acetate, succinate, propionate, formate, lactate, aromatic sulfonate such as toluene sulfonate, aliphatic sulfonic acid such as lauryl sulfate And the like.
  • an organic acid selected from an aromatic carboxylic acid, an aliphatic carboxylic acid or an aromatic sulfonic acid, such as a sodium salt, an alkali metal salt such as a potassium salt, or a calcium salt It is a quaternary ammonium salt such as an alkaline earth metal salt or an ammonium salt.
  • the molecular weight of the water-soluble solid organic acid salt used in the present invention is preferably from 50 to 350, and more preferably from 80 to 200.
  • the water-soluble solid organic acid salt used in the present invention is, specifically, Sodium benzoate, ammonium benzoate, potassium benzoate, calcium benzoate, sodium salicylate, ammonium salicylate, sodium hydrogen phthalate, potassium sorbate, sodium sorbate, sodium citrate, sodium citrate, potassium citrate Triammonium, dipotassium hydrogen citrate, sodium tartrate, potassium tartrate, potassium bitartrate, ammonium tartrate, lithium acetate, calcium acetate, ammonium acetate, diammonium succinate, sodium succinate, sodium propionate, propionate Potassium acid, calcium propionate, potassium formate, calcium formate, ammonium lactate, sodium toluenesulfonate, toluenesulfonic acid potassium or sodium lauryl sulfate
  • Particularly preferred are sodium benzoate, potassium benzoate, potassium sorbate, sodium sorbate, calcium propionate, sodium propionate, potassium potassium pionate, sodium toluene s
  • One of these water-soluble solid organic acid salts may be used alone, or two or more thereof may be used in combination.
  • the pesticidal active ingredient used in the present invention is not particularly limited as long as it is a pesticide, a bactericide, a herbicide, a plant regulator, and any other pesticides that can be used as ordinary pesticides. Isoxathion, propaphos, trichlorfon, formotion, dimethoate, monochrome tofos, acephate, carbofuran, carbosulfan, thiocyclam, cartap, bensultap, benfracarb, flatiocarp, carnoril, buprofescape, feobucarpu, mefocarpu mezine Systemic insecticides such as imidacloprid, nittenbiram, acetamiprid, etc., cycloprotrin, ethoproplon, silaflu Synthetic pyrethroids that are effective against pests that live in the water or near the water surface, such as the water beetle, P. officinal
  • Fungicides include, for example, probenazole, isoprothiolane, iprobenfos, tricyclazole, pyroquilon, carpropamide, azoxystropine, 7-fluoro-1,2,5,6-tetrahydro 4H-pyromouth [3. 2.1-i.j] Imatin agents such as quinolin-1-4-one, flutranil, mepronil, thifluzamide, flametopyr, (RS) -2- (4-fluorophenyl) 1-1- (1H—1,2 1, 4-triazole-1-yl) 1-3-trimethylsilyl-propane-12-year-old, etc., techopen phthalam, benomyl, etc.
  • Imatin agents such as quinolin-1-4-one, flutranil, mepronil, thifluzamide, flametopyr, (RS) -2- (4-fluorophenyl) 1-1- (1H—1,2 1, 4-triazole-1-yl)
  • herbicides examples include pyrazolyl herbicides such as pyrazolate, benzophenap, and birazoxyphen; sulfonyl such as bensulfuron-methyl, imazosulfuron, pyrazosulfuron-ethyl, sinosulfuron, ethoxysulfuron, azimsulfuron, and cyclosulfam-mouth. ⁇ Rare herbicides; chloroacetanilide herbicides such as butachlor, prepilachlor, and tenylchlor; carbamate herbicides such as tiovencarb, molinate, dimipeperet, esprocalce, etc .; and simethrin, dimethamethrin, etc.
  • pyrazolyl herbicides such as pyrazolate, benzophenap, and birazoxyphen
  • sulfonyl such as bensulfuron-methyl, imazosulfuron, pyrazosulfur
  • Triazine herbicides diphenyl ether herbicides that exhibit protox inhibition, such as chlornitrophen, chrometoxinil, and biphenox; such as oxadiazone, oxadialgyl, and pentoxazone Other protox inhibitors; phenoxy herbicides such as nabroanilide, MCPA and its alkali metal salts and esters, 2,4-D and its alkali metal salts and esters, MCPB and its esters, and clomeprop; Butamiphos, Mefenacet, Anilophos, Pilophos, Dithiopyr, Sinmethylin, Quinclorac, Etobenzanide, cafenstrol, Epoplodan, Pyriminonoc-methyl, Oxadiclomefone, 41- (2-cloclophenyl) -1 N- Cyclohexyl-1,4,5-dihydro N-ethyl-5-oxo-1H-tetrazol-11-carboxyamide (NBA 061),
  • Plant regulators include, for example, inabenfide, paclitaxel butrazole, penicazole, triapentenol and the like.
  • an active ingredient that exerts a biological effect on the water surface an active ingredient that has a strong soil adsorption property, or an active ingredient that has a solubility in water of less than 30 ppm is preferably used.
  • Synthetic pyrethroids such as cycloprothrin, ethofenprox, and silafluophen; herbicides that exhibit a herbicidal effect by foliar absorption of dimethamethrin, simethrin, bentazone, molinete, MCP, and 2,4-D ethyl ester Flutranyl, mepronil, tifluzamide, flametopyr, (RS) 1-2-(4-fluorophenyl) 1-1 (1H-1, 2, 4-triazolyl-1 -yl) 1-3-trimethylsilyl Pronon 1 2-—Effects such as oars?
  • the liquid or solid pesticidal active ingredient having a melting point of 50 ° C. or less is suitable for producing the pesticide granules for water application according to the present invention.
  • the amount of the pesticidal active ingredient used is usually 0.1 to 80%, preferably 0.5 to 50%, more preferably 0.5 to 50%, based on the pesticide granules for surface application of the present invention. , 1-30%.
  • the surface-applied pesticide granules of the present invention include, in addition to the water-soluble solid organic acid salt and the pesticidal active ingredient, if necessary, a binder, a bulking agent, a granulation improver, a disintegrant, a dispersant, a dispersant, an emulsifier, Other auxiliaries, such as spreading agents, can be included.
  • surfactants for example, surfactants, sugars, etc. as auxiliaries.Formulation of surfactants, sugars, etc. used, such as their properties, types and contents of active ingredients, or types and amounts of other components.
  • the purpose of use varies depending on the drug and dosage form, or it can be used for multiple purposes.
  • Binders are used to increase the hardness of the grains, such as relatively low molecular weight dextrins, water-soluble starch derivatives such as arsenic starch, polyvinylpyridone, Polyacrylic acid salt, carboxymethylcellulose salt, relatively low molecular weight and low conversion rate polyvinyl alcohol, lignin sulfonic acid salt, water-soluble polymer substances such as gum arabic, xanthan gum and guar gum; glucose, fructose Monosaccharides; disaccharides such as sucrose, maltose, and lactose; oligosaccharides; montmorillonite-based mineral substance fine powders such as bentonite; those having excellent disintegration of particles are preferable. Particularly preferred is glucose.
  • water-soluble starch derivatives such as arsenic starch, polyvinylpyridone, Polyacrylic acid salt, carboxymethylcellulose salt, relatively low molecular weight and low conversion rate polyvinyl alcohol, lignin s
  • the water dissolution rate of the binder may be lower than the water dissolution rate of the water-soluble solid organic acid salt as long as the water surface levitation rate of the pesticidal active ingredient is not reduced. It is faster than the dissolution rate.
  • the water dissolution rates of the water-soluble solid organic acid salt and the binder were compared by the following method. That is, 20 T: and 200 ml of ordinary water were respectively placed in a plurality of 300 ml 1-volume beakers, and stirred at a constant speed using a stirrer.
  • the water-soluble solid organic acid salt and the binder in proportion to the mixing ratio in the above are simultaneously poured into water within a range not exceeding 20 g, and the time required for complete dissolution in water is compared.
  • the amount of binding agent used, the formulation configuration and granulation process, different forces by grain size and the like? Is usually in the agrochemical granules from 0.1 to 4 0%, preferably, 0.
  • the content is 3 to 20%, and more preferably 0.5 to 5%.
  • the extender is not particularly limited as long as it is usually used for agricultural chemicals.
  • minerals such as bentonite, clay, calcium carbonate, diatomaceous earth, amorphous silicon dioxide, and talc
  • starch cork, wood flour, Ogakuzu, coffee bean powder, tub powder, cellulose powder, microcrystalline cellulose, rice husk powder, rice bran, bran, coconut shell powder and other plant powders
  • monosaccharides such as glucose and fructose; sucrose, maltose, lactose, etc.
  • the use of an agent is a preferred embodiment of the present invention.
  • the amount of the extender used is usually 1 to 80% in the granulated carrier and 1 to 60% in the surface-applied pesticide granule.
  • Granulation improvers are used for the purpose of improving granulation properties when granulating a granular carrier or an agricultural chemical granule by a wet method, and include, for example, various commonly used surfactants and kneaded materials.
  • Nonionic interfaces such as polyoxyethylene alkyl ethers, polyoxyethylene alkyl ethers, polyoxyethylene alkyl esters, and polyoxyethylene aryl alkyl ethers, which have a viscosity that imparts plasticity.
  • Surfactants such as sodium salts of dialkyl sulfosuccinates and sodium salts of alkyl benzene sulfonic acids; etc., when a liquid containing an active agricultural chemical is allowed to float on the water surface for a long time, it has a wetting effect.
  • Non-ionic surfactants or non-ionic surfactants are preferred, and nonionic surfactants with an HLB of 8 or less or anion-based fields are preferred.
  • Surfactants are more suitable, and when it is desired to dissolve and disperse the poorly water-soluble pesticidal active ingredient in water in a short time, those having a wetting action or an emulsifying action are suitable, and nonionics having an HLB of 10 or more are preferred.
  • Surfactants or anionic surfactants are more preferred.
  • the amount of the granulation improver to be used is usually 0.01 to 5%, preferably 0.02 to 3% in one granular carrier or granules immediately after the granulation drying step.
  • Water surface spreaders are used for the purpose of quickly spreading a liquid containing the active pesticide active ingredient to the entire surface of the water, enhancing the biological effect of the active pesticide ingredient, and reducing phytotoxicity, such as acrylic acid and maleic acid.
  • Polycarboxylic acid type polysoap such as sodium salt, potassium salt and ammonium salt of a copolymer of carboxylic acid with styrene sulfonic acid, vinyl group, etc .; sodium oleate And stones such as potassium stearate; anionic surfactants such as sodium dialkylsulfosuccinate, sodium dodecylbenzenesulfonate, sodium lauryl sulfate; polyoxyethylene alkylaryl ether, polyoxyethylene arylaryl Ether, polyoxyethylene alkyl ether, Lioxyethylene alkyl ester, sorbitan alkyl ester, silicone Nonionic surfactants such as nonionic surfactants, acetylene-based surfactants, and pull-mouth nick-type surfactants; Nonionic surfactants are phosphoric acid or sulfuric acid esters, and in some cases, these are suitable.
  • Surfactants neutralized with various alkalis Fluorinated surfactants; Mineral oils; Silicone oil; Vegetable oils such as rapeseed oil, rice bran oil, camellia oil, coconut oil, sesame oil, etc .; Resins such as pine resin; camphor white oil ⁇ - pinene; camphor; naphthalene; and the like, and preferably, an acetylene-based surfactant, a silicone-based surfactant, a fluorine-based surfactant, a mineral oil, or a nonionic interface having an HLB of 8 or less. Activator.
  • the acetylene-based surfactants are acetylene alcohols, acetylene diols, and surfactants obtained by adding an alkylene oxide thereto, and particularly preferably acetylene diols.
  • Silicone-based surfactants include polyethylene oxide, polypropylene oxide or polyethylene oxide and polypropylene oxide at the terminal, side chain or at the terminal and part of the methyl group of the side chain of dimethylpolysiloxane. These are nonionic surfactants containing polyether-modified silicone oil as a main component, which has been introduced and whose terminal hydroxyl group is etherified with an alkyl group or esterified with an acyl group.
  • Fluorosurfactants are surfactants in which the hydrogen atoms of ordinary anionic, cationic, nonionic or zwitterionic surfactants have been replaced with fluorine atoms. It is known that it has excellent tension lowering force.
  • Mineral oils mainly contain paraffinic, naphthenic and aromatic high-boiling solvents, such as liquid paraffin, isoparaffin, and machine oil.
  • Nonionic surfactants having an H L 8 of 8 or less have a relatively small number of added moles of ethylenoxide, among the above nonionic surfactants, and many have low water solubility and little wetting action.
  • the amount of the water surface spreader used depends on the formulation and formulation, such as the type and content of the active ingredient, the type of water surface spreader, and the type and amount of other components. 0.1 to 20% in the preparation, preferably 0.1 to 10%, more preferably Il is preferably 0.2-5%.
  • the water surface spreader may be kneaded with other components at the time of granulation, and may be absorbed or coated on the granular carrier alone or together with the pesticidal active ingredient after granulation.
  • a solvent can be used for dissolving or diluting the poorly water-soluble pesticidal active ingredient.
  • Solvents to be used are selected from those with high solubility, low toxicity and low flammability, which have the ability to dissolve the pesticide active ingredient and do not affect the stability of the pesticide active ingredient.
  • mineral oils such as low-viscosity liquid paraffin, chlorinated paraffin, isoparaffin, machine oil, polybutene, paraffinic, naphthenic, and aromatic high-boiling solvents
  • coconut oil Vegetable oils such as soybean oil and rapeseed oil
  • animal oils such as whale oil and sardine oil
  • silicone oils and derivatives thereof mono- or di-basic rubons such as oleic acid, coconut oil fatty acid, maleic acid, fumaric acid, phthalic acid, and adipic acid
  • plasticizers such as various esters of phosphoric acid such as tributyl phosphate and trichloroethyl phosphate
  • ethylene glycol Mentioned ⁇ - alkyl Rupirori Don; -
  • ethylene glycol polyethylene glycol, propylene grayed recall, glycols and various esters and ether compounds thereof, such as butanediol lactone
  • the specific gravity of the solution containing the pesticidal active ingredient of the present invention may be at least 1.01, preferably from 1.01 to 2.0, and more preferably from 1.02 to 1.0. And more preferably from 1.03 to 1.25.
  • the liquid containing the pesticidal active ingredient of the present invention is not particularly limited as long as it is a liquid, and the pesticidal active ingredient itself may be a liquid, including a solution and a suspension and having a low viscosity. And expensive ones.
  • an emulsifier can be used for the purpose of emulsifying the pesticidal active ingredient in water.
  • the emulsifier can be added to a liquid agricultural chemical active ingredient or a liquefied agricultural chemical active ingredient as needed, and can be selected in the same manner as a normal emulsion emulsifier depending on the agricultural chemical active ingredient and the solvent used.
  • Water-soluble solid organic acid salts, active agricultural chemicals and other ingredients are ground if necessary After that, the mixture is granulated using a suitable granulator, dried, and sized to obtain a granulated dog, whereby the pesticide granules for water application according to the present invention are obtained. Also, granulated carrier is manufactured by granulating only the remaining components without mixing the pesticidal active ingredient, and if necessary, pulverizing the pesticidal active ingredient together with an appropriate milling aid or other auxiliary if necessary.
  • a concentrated premix which is coated on the granular carrier with a suitable binder, or, if necessary, is dissolved in a suitable solvent and the pesticidal active ingredient is dissolved in a suitable solvent, and further added with other auxiliaries if necessary.
  • a premix (hereinafter, referred to as a premix) is absorbed by the granular carrier to obtain the pesticide granules for water application according to the present invention.
  • Granulation can be performed using a granulator such as a side-pressing or basket-type extrusion granulator, a mixing granulator, a tumbling granulator, a fluidized-bed granulator, and a spray dryer.
  • a granulator preferably does not apply strong pressure or shear force so that the oil absorbing ability of the granular carrier does not decrease. Examples include a basket type granulator, an extrusion granulator and a fluidized bed granulator. The most preferred granulation method is the extrusion granulation method.
  • the most preferred method for increasing the water surface floating rate of the pesticidal active ingredient is to add a liquid pesticidal active ingredient or oil premix to a previously prepared granular carrier containing a water-soluble solid organic acid salt. It is a method of absorbing.
  • the above-mentioned production methods may be combined depending on the kind of pesticidal active ingredient.
  • the other pesticidal active ingredient is first kneaded and granulated with other ingredients including a water-soluble solid organic acid, and then the granules are further floated.
  • the target pesticide granules for water application can be obtained by absorbing the liquid pesticide active ingredient or the oil premix containing the desired pesticide active ingredient.
  • the stirring and mixing machine which used to coat the yer less type force grain crushing mixing at low speed?
  • a ribbon-flop render Rotary blender, V type mixer, and the like .
  • liquid pesticidal active ingredient or oil premix is absorbed by the granular carrier
  • a granular carrier prepared in advance is usually charged into the above-described stirring mixer, and the liquid pesticidal active ingredient or the oil premix is added and absorbed under stirring.
  • auxiliaries such as a solvent, an emulsifier, and a water surface spreader can be added to the oil premix as needed.
  • the water-applied pesticide granules of the present invention can be sprayed in the same manner as ordinary granules such as hand-spraying and mechanical spraying, and can be further provided with a container (eg, box, bottle, bag, etc.) provided with an appropriate transfer port. ) It is also possible to apply the transfer directly to paddy fields.
  • a container eg, box, bottle, bag, etc.
  • the pesticide granules applied to the water surface of the present invention have a high water surface floating rate of the pesticidal active ingredient. (So-called frame spraying).
  • the pesticide granules for water application according to the present invention can be thrown from a ridge or the like as a package in water-soluble paper.
  • the granule be a type of granule that floats on the surface of the water while keeping the shape of the granules, so that the pesticide active ingredient does not remain locally at the release point.
  • the water-soluble paper used is a film or sheet having a property of dissolving or dispersing in water, for example, a film or sheet made of polyvinyl alcohol or a derivative thereof, a film or sheet made of pullulan film, carboxymethyl Films or sheets composed of sodium salt of cellulose and cellulose, films or sheets composed of poly (ethylene oxide) or a derivative thereof, and the like are preferably used. It is a film or sheet having the property of spreading the pesticidal active ingredient on the water surface, and examples thereof include a film (hereinafter, referred to as a PVA film) or a sheet made of polyvinyl alcohol or a derivative thereof.
  • a preferred embodiment of the present invention is:
  • the water-soluble solid organic acid salt is an organic acid selected from aromatic carboxylic acids, aliphatic carboxylic acids or aromatic sulfonic acids, an alkaline metal salt, an alkaline earth metal salt, or a quaternary ammonium salt.
  • a granular carrier that is salt is salt.
  • a granular carrier in which the water-soluble solid organic acid salt has a molecular weight of 50 to 350 has a molecular weight of 50 to 350.
  • the water-soluble solid organic acid salt is sodium benzoate, potassium benzoate, potassium sorbate, sodium sorbate, calcium propionate, sodium propionate, potassium propionate, sodium toluene sulfonate or toluene.
  • Granular carrier that is a sulfonic acid power rim.
  • a granular carrier, wherein the water-soluble solid organic acid salt is sodium benzoate.
  • a pesticide granule to be applied to the water surface wherein the content of the pesticidal active ingredient is 0.5 to 50% based on the pesticide granule.
  • the granule carrier of (1) to (9) may include one or more selected from cork, foamed shirasu, foamed pumice, foamed perlite, foamed synthetic resin, synthetic resin powder, and hollow plastic body A granular carrier containing a buoyant bulking agent.
  • FIG. 1 shows the locations of pesticide granule treatment and investigation when pesticide granules were packaged and thrown.
  • FIG. 2 shows the locations of pesticide granule treatment and surveys when pesticide granules were sprayed on the frame.
  • FIG. 3 shows the processing points and survey points of pesticide granules when pesticide granules are evenly sprayed.
  • a granular carrier and a pesticide granule of the present invention were obtained in the same manner as in Example 1, except that 40 parts of sodium benzoate, 25 parts of LocaHelp 43 and 35 parts of glucose were used as raw materials of the granular carrier.
  • 40 parts of sodium benzoate, 25 parts of LocaHelp 43 and 35 parts of glucose were used as raw materials of the granular carrier.
  • the granular carrier and the pesticide granules of the present invention were prepared in the same manner as in Example 1 except that 45 parts of sodium benzoate, 45 parts of LocaHelp (39 parts) and 30 parts of glucose were used as raw materials of the granular carrier. Obtained.
  • a granular carrier and a pesticide granule of the present invention were obtained in the same manner as in Example 1 except that 65 parts of sodium benzoate, 40 parts of LocaHelp (25 parts) and 10 parts of glucose were used as raw materials for the granular carrier. .
  • the granular carrier and the pesticide granules of the present invention were prepared in the same manner as in Example 1 except that 85 parts of sodium benzoate, LocaHelp 439 (5 parts) and 10 parts of glucose were used as raw materials for the granular carrier. Obtained.
  • a granular carrier and a pesticide granule of the present invention were obtained in the same manner as in Example 1 except that 100 parts of sodium benzoate was used as a raw material of the granular carrier.
  • a granular carrier and a pesticide granule of the present invention were obtained in the same manner as in Example 1, except that 65 parts of sodium benzoate and 35 parts of glucose were used as the origin of the granular carrier.
  • a granular carrier and a pesticide granule of the present invention were obtained in the same manner as in Example 1, except that 65 parts of sodium benzoate and 35 parts of potassium chloride were used as raw materials for the granular carrier.
  • the granular carrier of the present invention was prepared in the same manner as in Example 1 except that 65 parts of sodium p-toluenesulfonate, 25 parts of RocaHelp 43 and 10 parts of glucose were used as raw materials for the granular carrier. Pesticide granules were obtained.
  • a granular carrier and an agricultural chemical granule of the present invention were obtained in the same manner as in Example 1 except that 65 parts of potassium sorbate, 40 parts of Locahelp (39 parts) and 10 parts of glucose were used as raw materials for the granular carrier.
  • Example 12 A granular carrier and an agricultural chemical granule of the present invention were obtained in the same manner as in Example 1 except that 65 parts of potassium sorbate, 40 parts of Locahelp (39 parts) and 10 parts of glucose were used as raw materials for the granular carrier.
  • Example 12 Example 12
  • a granular carrier and an agricultural chemical granule of the present invention were obtained in the same manner as in Example 1, except that 65 parts of calcium propionate, 25 parts of LocaHelp 439 and 10 parts of glucose were used as raw materials for the granular carrier. .
  • a granular carrier and an agricultural chemical granule of the present invention were obtained in the same manner as in Example 1 except that 65 parts of sodium propionate, 40 parts of Locahelp (39 parts) and 10 parts of glucose were used as raw materials for the granular carrier. .
  • a granular carrier of the present invention was obtained in the same manner as in Example 1 (1) except that 100 parts of sodium benzoate was used as a raw material. (Same as the granular carrier described in Example 7.)
  • Pesticide granules A granular carrier and an agricultural chemical granule of the present invention were obtained in the same manner as in Example 14 except that 65 parts of sodium benzoate and 35 parts of glucose were used as raw materials for the granular carrier.
  • a granular carrier and an agricultural chemical granule of the present invention were obtained in the same manner as in Example 14 except that 65 parts of sodium benzoate and 35 parts of potassium chloride were used as raw materials for the granular carrier.
  • a granular carrier of the present invention was obtained in the same manner as in Example 14 (1).
  • Example 18 As a raw material for an oil premix, 3.15 parts of a diazinon drug substance, 0.35 parts of Surfinol 104 and 1.55 parts of diethylene glycol dibutyl ether were used, and a specific gravity of 1 The pesticide granules of the present invention were obtained in the same manner as in Example 17, except that an oil premix having .02 was obtained. (Example 19)
  • the oil premix is based on 3.15 parts of the diazinon drug substance, 0.30 parts of sodium phenol (0.30 parts) and 1.55 parts of butyl lactate, and has a specific gravity of 1.06.
  • An agricultural chemical granule of the present invention was obtained in the same manner as in Example 17 except that a mix was obtained.
  • Example 23 Each 150 g of the pesticide granules produced in Example 14 was divided into Hythelon C-200 (PVA film, manufactured by Nihon Film Co., Ltd.) to obtain a casting agent of the present invention. These are thrown in at a rate of 20 packs per 10 ares of paddy fields. (Example 23)
  • Example 25 50 g of each of the pesticide granules produced in Example 23 was packaged in Hythelon C-200 to obtain a casting agent of the present invention. These are thrown at a rate of 10 packs per 10 ares for paddy fields. (Example 25)
  • Example 25 50 g of each of the pesticide granules produced in Example 25 was packaged in Hythelon C_200 to obtain a casting agent of the present invention. These are thrown at a rate of 10 packs per 10 ares for paddy fields.
  • Pesticide granules were obtained in the same manner as in Example 14 except that 98 parts of potassium chloride, 0.5 part of xanthan gum and 1.5 parts of sodium polyacrylate were used as raw materials of the granular carrier.
  • Each 150 g of the pesticide granule produced in Comparative Example 1 was packaged in Hythelon C-200 (PVA film, manufactured by Nichigo Film Co., Ltd.) to obtain a throwing agent.
  • the cycloprothrin content in this formulation is the same as in Example 24.
  • a 300 ml 1 screw-cap glass bottle with an inner diameter of 6 cm and a height of 10.6 cm was filled with 300 ml of 3rd hard water, and the pesticide granules 1 produced according to Examples 1 to 23 or Comparative Examples 1 to 6 were prepared.
  • Omg was uniformly added and left at room temperature for 1 hour. Then, gently add 2 Oml of ethyl acetate to the surface of the water, gently stir with a glass rod, collect 2 ml of the ethyl acetate layer with a hole pipet, and analyze it by high performance liquid chromatography to obtain ethyl acetate.
  • the amount of the active pesticide dissolved in the layer was measured, and the water surface levitation rate was calculated by the following equation. The results are shown in Table 1.
  • Water surface levitation rate (%) (amount of active pesticide dissolved in 2 Om1 of collected ethyl acetate layer) ⁇ (amount of active pesticide contained in 1 Omg of pesticide granule) X 100 2 ⁇ Table 1
  • Example 1 Test granules Specific gravity of oil pre-titters Surface float (%) Example 1 1.21 45 Example 2 1.21 58 Example 3 1.21 66 Example 4 1.21 70 Example 5 1.21 81 Example 6 1.21 82 Example 7 1.21 95 Example Example 8 1.21 76 Example 9 1.21 79 Example 1 0 1.21 76 Example 1 1 1.21 82 Example 1 2 1.21 85 Example 1 3 1.21 83 Example 1 4 1.02 88 Example 1 5 1.02 83 Example 1 6 1.02 80 Example 1 7 1.04 66 Example 1 8 1.02 63 Example 1 9 1.03 66 Example 2 0 1.06 54 Example 2 1 1.07 48 Example 23 1.07 93 Example 2 5 1.07 95 Comparative example 1 1.02 12 Comparative Example 2 1.02 17
  • the pesticidal active ingredients in Comparative Examples 1 and 2 have a low water surface levitation ratio, even if the specific gravity of the oil premix containing the pesticidal active ingredient is close to 1, 1.02, a normal solid that is not a water-soluble organic acid salt
  • a pesticide granule was produced using a carrier, it was found that the pesticidal active ingredient or a liquid containing the pesticide active ingredient was unlikely to float on the water surface.
  • the pesticide granules of the present invention exhibited an excellent water surface floating rate.
  • Example 14 and Comparative Example 1 into 50% X 60-minute packages. Spray the granules in a frame (processing width: 5m, total 9kg each) and evenly distribute the granules (9 each) kg) Treated, and 10 days after treatment, the number of rice worms in three rice plants at the survey points was investigated.
  • Table 2 shows the survey results.
  • Figure 1 shows the outline of the treatment and survey points. Table 2
  • Three days after planting in a paddy field of 30 ares (10 Om x 30 m) in one plot, 15 packs of the throwing agent produced according to Examples 24 and 26 were planted from the long ridge of the paddy field. (A total of 30 packs on the rainy levee) Throwing treatment was performed, and 20 days after the treatment, the weeding effect at a position 5 m from both levee ridges and the center line was investigated. Weeds were hardly observed at any of the survey points, showing the maximum herbicidal effect. In addition, phytotoxicity to rice was examined at the point where the pack was dropped and at the point of leeward at the time of treatment, but no phytotoxicity to rice was found in any of the plots.
  • the pesticides for water application according to the present invention can be used as pesticides for water application.
  • the pesticide granules for water application according to the present invention have a high water surface floating rate of the pesticidal active ingredient, so that a required amount of the pesticide active ingredient is released at a necessary time, and the pesticide active ingredient is high near the grain due to soil adsorption. It is not unevenly distributed in concentration, shows excellent activity of the pesticidal active ingredient, and can reduce the risk of phytotoxicity.
  • the pesticide granule for water application according to the present invention floats the pesticide active ingredient or a liquid containing the same on the water surface by containing a solid organic acid salt, does not require a large amount of solvent, and does not require an agrochemical formulation. It is possible to contribute to weight reduction and volume reduction.
  • the granular carrier of the present invention can be used for producing the above-mentioned pesticide granules to be applied to the water surface, in which the water surface floating rate of the pesticidal active ingredient is improved.

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  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Agronomy & Crop Science (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

L'invention concerne des supports granulaires pour la production de pesticides granulaires à appliquer à la surface de l'eau, renfermant un sel d'acide organique solide soluble dans l'eau, et présentant un indice de flottation amélioré des ingrédients actifs pesticides. L'invention concerne également des pesticides granulaires à indice de flottation amélioré de l'ingrédient actif pesticide qui contient les supports précités ou un sel d'acide organique solide soluble dans l'eau, ainsi qu'un liquide renfermant un ingrédient actif pesticide difficilement soluble dans l'eau et d'une densité égale ou supérieure à 1,01. L'invention concerne enfin l'utilisation de ces granulés comme pesticides pour application à la surface de l'eau.
PCT/JP1999/003934 1998-07-22 1999-07-22 Pesticides granulaires pour application a la surface de l'eau et supports granulaires y relatifs WO2000004772A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10/206479 1998-07-22
JP20647998 1998-07-22

Publications (1)

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WO2000004772A1 true WO2000004772A1 (fr) 2000-02-03

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07101805A (ja) * 1993-08-11 1995-04-18 Nippon Nohyaku Co Ltd 水面施用農薬組成物及びその製造方法
JPH0899803A (ja) * 1994-08-04 1996-04-16 Sankyo Co Ltd 水面浮遊拡展性非崩壊粒剤
JPH0899802A (ja) * 1994-08-04 1996-04-16 Sankyo Co Ltd 水面での崩壊分散性を調節した水面浮遊性農薬粒剤及びそのキャリヤー
JPH08175903A (ja) * 1994-12-22 1996-07-09 Takeda Chem Ind Ltd 徐放性農薬製剤
JPH09249504A (ja) * 1996-03-15 1997-09-22 Nippon Nohyaku Co Ltd 水面施用農薬組成物、製造方法及びその包装物並びにその使用方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07101805A (ja) * 1993-08-11 1995-04-18 Nippon Nohyaku Co Ltd 水面施用農薬組成物及びその製造方法
JPH0899803A (ja) * 1994-08-04 1996-04-16 Sankyo Co Ltd 水面浮遊拡展性非崩壊粒剤
JPH0899802A (ja) * 1994-08-04 1996-04-16 Sankyo Co Ltd 水面での崩壊分散性を調節した水面浮遊性農薬粒剤及びそのキャリヤー
JPH08175903A (ja) * 1994-12-22 1996-07-09 Takeda Chem Ind Ltd 徐放性農薬製剤
JPH09249504A (ja) * 1996-03-15 1997-09-22 Nippon Nohyaku Co Ltd 水面施用農薬組成物、製造方法及びその包装物並びにその使用方法

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