JP2010083869A - Agrochemical packaged bag for applying to paddy field water inlet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new agrochemical packaged bag performing labor-saving application of an agrochemical. <P>SOLUTION: There is provided an agrochemical packaged bag provided by packaging a water-dispersible grain agrochemical composition with a nonwoven fabric having 17-35 g/m<SP>2</SP>basis weight and one or more packaging materials selected from the group consisting of mesh sheets with 100-330 μm aperture and used by setting at a paddy field water inlet. There is also provided a method for applying an agrochemical by setting an agrochemical packaged bag provided by packaging a water-dispersible grain agrochemical composition with a nonwoven fabric having 17-35 g/m<SP>2</SP>basis weight and one or more packaging materials selected from the group consisting of mesh sheets with 100-330 μm aperture. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a pesticide packaging bag that is used by being installed in a water mouth of a paddy field.

  Agricultural chemical spraying in paddy fields is generally carried in rice fields. Alternatively, spray using a power spreader from the shore. Since these require labor, labor-saving application methods are required. Regarding this labor-saving spraying method, a method is known in which a net-like material that holds an agrochemical preparation is placed so as to be immersed in water at the water mouth of a paddy field (Patent Document 1).

JP-A-8-133904

  The present inventors have found that when a water-dispersible granular pesticide composition is introduced into a net, the water-dispersible granular pesticide composition may leak from the mesh before being installed at the paddy field. Furthermore, when the present inventors installed a net-like material holding the water-dispersible granular agricultural chemical composition therein so as to be immersed in water at the mouth of a paddy field, the water-dispersible granular agricultural chemical composition is released from the net. I found out that it can take a lot of time.

  The present invention solves the above problems.

As a result of intensive studies, the present inventors have determined that the water-dispersible granular agricultural chemical composition is one or more types of packaging selected from the group consisting of a nonwoven fabric having a basis weight of 17 to 35 g / m ² and a mesh sheet having an opening of 100 to 330 μm. The present invention has been completed by finding that the above problems can be solved by filling the material and installing it in the paddy field.

  That is, the present invention relates to the following [1] to [9].

[1] The water dispersible granular agricultural chemical composition is packaged by one or more packaging materials selected from the group consisting of a nonwoven fabric having a basis weight of 17 to 35 g / m ² and a mesh sheet having an opening of 100 to 330 μm. Agricultural packaging bag to be used at the paddy field.

[2] The agricultural chemical packaging bag according to [1], wherein the packaging material is a nonwoven fabric having a basis weight of 17 to 35 g / m ² .

[3] The agricultural chemical packaging bag according to [1], wherein the packaging material is a nonwoven fabric having a basis weight of 20 to 30 g / m ² .

  [4] The agricultural chemical packaging bag according to [1], wherein the packaging material is a mesh sheet having an opening of 100 to 330 μm.

  [5] The agricultural chemical packaging bag according to [1], wherein the packaging material is a mesh sheet having an opening of 120 to 300 μm.

  [6] The agricultural chemical packaging bag according to any one of [1] to [5], which is filled with 20 to 1000 g of a water-dispersible granular agricultural chemical composition.

  [7] The agricultural chemical packaging bag according to any one of [1] to [6], wherein the water-dispersible granular agricultural chemical composition has a particle size of 300 μm to 700 μm.

[8] The water dispersible granular agricultural chemical composition is packaged by one or more packaging materials selected from the group consisting of a nonwoven fabric having a basis weight of 17 to 35 g / m ² and a mesh sheet having a mesh size of 100 to 330 μm. A method for applying pesticides by installing a pesticide packaging bag in the paddy field.

  [9] The method for applying an agrochemical according to the above [8], wherein the agrochemical packaging bag is installed in a water flow at a paddy water mouth.

According to the present invention, when the water-dispersible granular agricultural chemical composition is filled into one or more packaging materials selected from the group consisting of a nonwoven fabric having a basis weight of 17 to 35 g / m ² and a mesh sheet having an opening of 100 to 330 μm, The water-dispersible granular pesticide composition can be prevented from leaking from the mesh of the packaging material before it is installed in the paddy paddy field. Moreover, if it installs in a paddy field water mouth, a water dispersible granular agricultural chemical composition can be rapidly released from an agricultural chemical packaging bag.

The nonwoven fabric used in the present invention has a basis weight of 17 to 35 g / m ² . The basis weight of the nonwoven fabric means the weight of the nonwoven fabric per 1 m ² . From the viewpoint of preventing the water-dispersible granular agricultural chemical composition from leaking out from the mesh of the packaging material before being installed at the paddy field mouth, the basis weight is preferably 20 g / m ² or more. In addition, the basis weight is preferably 30 g / m ² or less from the viewpoint of promptly releasing the water-dispersible granular pesticide composition from the pesticide packaging bag after it is installed at the paddy field mouth.

  Examples of the material of the nonwoven fabric used in the present invention include fibers made of polyethylene terephthalate, polypropylene, polyethylene, saran (polyvinylidene chloride), rayon, nylon, aramid, vinylon, polyvinyl alcohol, polylactic acid, glass, or cellulose. .

  The mesh sheet used in the present invention has an opening of 100 to 330 μm. The mesh sheet openings mean the average distance between the fibers. From the viewpoint of preventing the water-dispersible granular agricultural chemical composition from leaking out from the mesh of the packaging material before being installed in the paddy field mouth, the mesh opening is preferably 300 μm or less. From the viewpoint of promptly releasing the water-dispersible granular pesticide composition from the pesticide packaging bag after it is installed at the paddy field mouth, the opening is preferably 120 μm or more.

  Examples of the material of the mesh sheet used in the present invention include fibers made of polyethylene terephthalate, polypropylene, polyethylene, polyester, nylon, or cotton.

  The shape of the packaging material made of nonwoven fabric and mesh sheet used in the present invention is arbitrary such as a bag shape or a box shape.

  In the present invention, the packaging material made of non-woven fabric and mesh sheet can be fixed so as not to move due to water flow. For example, the wrapping material and the protrusion near the water mouth can be tied and fixed with a string.

  In the present invention, the water-dispersible granular agricultural chemical composition filled in the agricultural chemical packaging bag is a granular composition containing an agricultural chemical active ingredient having a property of being easily disintegrated in water and dispersed in water as fine particles. In addition, the said water dispersible granular agrochemical composition can also be diluted with water, without filling a pesticide packaging bag, and the dilution liquid can be spread | diffused to a paddy field.

  The water-dispersible granular agricultural chemical composition of the present invention is usually filled in 20 to 1000 g in an agricultural chemical packaging bag.

  The particle size of the water dispersible granular agricultural chemical composition of the present invention is usually 300 μm to 700 μm, preferably 400 μm to 600 μm.

  Examples of the pesticidal active ingredient contained in the water-dispersible granular pesticidal composition used in the present invention include herbicides, insecticides, acaricides, fungicides and plant growth regulators. Below, the common name chemical name or test name of the pesticidal active ingredient used in the present invention is exemplified.

As herbicides, pyrazosulfuron ethyl, halosulfuron methyl, bensulfuron methyl, imazosulfuron, azimsulfuron, cinosulfuron, cyclosulfamlon (cyclosulfamuron) cyclosulfamuron), ethoxysulfuron, quinoclamin, 3-chloro-N- (4,6-dimethoxypyrimidin-2-ylcarbamoyl) -1-methyl-4- (5-methyl-5,6- Dihydro-1,4,2-dioxazin-3-yl) -1H-pyrazole-5-sulfonamide, pyraclonil, aminocyclopyrachlor, tefuryltirone, mesotrione, pyri Pyrimisulfan, penoxsulam, aminopyralid, bencar Bencarbazone, orthosulfamrun, flucetosulfuron, monosulfuron, monosulfuron-methyl, pinoxaden, propoxycarbazone-sodium, Pyrasulfotole, pyroxasulfone, pyroxsulam, tembotrione, thiencarbazone-methyl, topramezon, metamitron, esprocarb, bencho curve (Benthiocarb), molinate, dimepiperate, pyributicarb, mefenacet, butachlor, pretilachlor, tenylchlor (th enylchlor, bromobutide, etobenzanid, dymron, cumyluron, bentazone, pyriftalid, bispyribac, salt of bentazone, 2,4-D, 2,4 -D salt, 2,4-D ester, MCP, MCP salt, MCP ester, MCPB, MCPB salt, MCPB ester, phenothiol (MCPA-thioethyl), chromeprop, naproanilide , Oxadiazon, pyrazolate, pyrazoxyfen, benzofenap, oxadiargyl, dimethametryn, simethrin, piperophos, anilofos, pig butamifos), kink Quinclorac, bensulide, dithiopyr, pyriminobac methyl, CNP, chlormethoxynil, cyhalofop butyl, bifenox, cafenstrole, Pentoxazone, indanofan, oxaziclomefone, fentolazamide, butenachlor, ACN, benzobicyclon, benfuresate, cinmethyrin (simiminin), simazine (azine) (Dichlobenil), diuron, chloro IPC (chlorpropham), atrazine, alachlor, isouron, chlorphtalim, cyanazin , Trifluralin, butamifos, propyzamide, prometryn, pendimethalin, metolachlor, metribuzin, linuron, lenacil, propanil (Propanil), MCPA, ioxynil octanoate, asuram, quizalofop-ethyl, propaquizafop, quizalofop-tefuryl, sethoxydim, Thifensulfuron-methyl, fenoxaprop-ethyl, phenmedipham, fluazifop-butyl, bentazone, SAP (bensulide), TCTP (chlorthal) -dimethyl, tetorachlorothiophene), Amiprophosmethyl, ametryn, isoxaben, orbencarb, carbylate, dithiopyr, siduron, thiazafluron, napropamide, prodiamine (Prodiamine), besfin (benefin), methyl dymron (methyl dymron), 2,4-PA, MCPPA, flazasulfuron (flazasulfuron), metsulfuron-methyl, imazaquin, imazapyr (imazapyr), Tetrapropionate, tebuthiuron, bromacil, hexazinone, glyphosate-ammonium, glyphosate-isopropylammonium, glyphosate-trimesi Salt (glyphosate-trimesium), glyphosate-sodium, glyphosate-potassium, bialaphos, glufosinate-ammonium, OK-701 (test name), HOK-201 (test) Name), TH-547 (test name) and MCC,
As fungicides, acibenzolar, ampropyfos, anilazine, azaconazole, azoxystrobin, benalaxyl, benodanil, benomyl Benzamacril, binapacryl, biphenyl, bitertanol, bethoxazine, bordeaux mixture, blasticidin-S, bromoconazole, Bupirimate, buthiobate, calcium polysulfide, captafol, captan, copper oxychloride, carpropamid, carbendazim Carboxin (carboxin), chinomethionat, clobenthiazone, chlorfenazol, chloroneb, chlorothalonil, clozolinate, cufraneb, simoxanil, cymoxil Cyproconazol, cyprodinil, cyprofuram, debacarb, dichlorophen, dichlorobutrazol, diclhlofluanid, diclomedine, diclomedine , Diethofencarb, diclocymet, difenoconazole, diflumetorim, dimethirimol, dimethomorph, diniconazo Diniconazole, dinicoazole-M, dinocap, diphenylamine, dipyrithione, ditalimfos, dithianon, dodemorph, dodine, Drazoxolon, edifenphos, epoxiconazole, etaconazole, ethirimol, etridiazole, famoxadone, fenarimol, febuconazole, febuconazole (Fenfuram), fenpiclonil, fenpropidin, fenpropimorph, fentin, ferbam, ferimzone, fluazinam, fluji Fludioxonil, fluoroimide, fluquinconazole, flusilazole, flusulfamide, flutolanil, flutriafol, folpet, fosetyl-aluminum ( fosetyl-aluminium, fuberidazole, fluralaxyl, fenamidone, fenhexamid, guazatine, hexachlorobenzene, hexaconazole, hymexazol, Imazalil, imibenconazole, iminoctadine, ipconazole, iprobenfos, iprodione, isoprothiolane ne), iprovalicarb, kasugamycin, kresoxim-methyl, mancopper, mancozeb, maneb, mepanipyrim, mepronil, metalaxyl metalaxyl, metconazole, metiram, metinominostrobin, microbutanil, nabam, nickel bis (dimethyldithiocarbamate), nitrothal-isopropyl -isopropyl), nuarimol, octhilinone, offurace, oxadixyl, oxycarboxin, oxpoconazole fumarate, pefurzoate Penconazole, pencicuron, phthalide, piperalin, polyoxins, probenazole, prochloraz, procymidone, propamocarb hydrochloride, propicocarb hydrochloride Propiconazole, propineb, pyrazophos, pyrifenox, pyrimethanil, pyroquilon, quinoxyfen, quintozene, sulfur, spiroxamine ), Tebuconazole, tecnazene, tetraconazole, thiabendazole, thifluzamide, thiophanate-methyl, thiram (Thiram), tolclofos-methyl, tolylfluanid, triadimefon, triadimenol, triazoxide, tricyclazole, triridemorph, triflumole ), Triforine, triticonazole, validamycin, vinclozolin, zineb, ziram, oxine-copper.

Bactericides: streptomycin, oxyterracycline and oxolinic acid,
Nematicides include aldoxycarb, fosthiazate, fosthietan, oxamyl and fenamiphos,
As miticides, acrylonitrile compounds such as cyenopyrafen and cyfulmetofen, spiromesifen, spirodiclofen, pyridaben, amitraz, bromopropylate , Chinomethionat, chlorobezilate, clofentezine, cyhexatine, dicofol, dienochlor, etoxazole, fenazaquin, fenbutaine oxide ( fenbutatin oxide, fenpropathrin, fenproximate, halfenprox, hexythiazox, milbemectin, propargi Propargite, pyrimidifen and tebufenpyrad,
Insecticides include abamectin, acephate, acetamipirid, azinphos-methyl, bendiocarb, benfuracarb, bensultap, bifenthrin, profenthrin buprofezin, butocarboxim, carbaryl, carbofuran, carbofuran, carbosulfan, cartap, chlorfenapyr, chlorpyrifos, chlorfenvinphos, Chlorfluazuron, clothianidin, chromafenozide, chlorpyrifos-methyl, cyfluthrin, beta-cyfluthrin Cypermethrin, cyromazine, cyhalothrin, lambda-cyhalothrin, deltamethrin, diafenthiuron, diazinon, diacloden, diflubenzuron diflubenzuron, dimethylvinphos, diofenolan, disulfoton, dimethoate, EPN, esfenvalerate, ethiofencarb, ethiprole, etofenprox Etrimfos, fenitrothion, fenobucarb, fenoxycarb, fenpropathrin, fenvalerate, Ronyl (fipronil), flucythrinate, flufenoxuron, flufenprox, tau-fluvalinate, fonophos, formetanate, formotaion ( formothion, furathiocarb, halofenozide, hexaflumuron, hydramethylnon, imidacloprid, isofenphos, indoxacarb, isoprocarb, isopatione (Isoxathion), lufenuron, malathion, metalaldehyde, metamidophos, methidathion, methacrifos, metalcarb, mesomil (Methomyl), methoprene, methoxychlor, methoxyfenozide, monocrotophos, muscalure, nitenpyram, omethoate, oxydemeton-methyl, Oxamyl, parathion, parathion-methyl, permethrin, phenthoate, phoxim, phorate, phosalone, phosmet, phosphamidone (Phosphamidon), pirimicarb, pirimiphos-methyl, profenofos, pymetrozine, pyraclofos, pyriproxyfen, rotenone, sulfenone Lofos, silafluofen, spinosad, sulfopep, tebfenozide, teflubenzuron, tefluthorin, terbufos, tetrachlorovinphos, tetrachlorvinphos, tetrachlorvinphos thiodicarb, thiamethoxam, thiofanox, thiometon, tolfenpyrad, tralomethrin, trichlorfon, triazuron, triflumuron and othionthiova can give.

  These pesticidal active ingredients can be used alone or in admixture of two or more, and the ratio in the case of mixing can be freely selected. The content of the pesticidal active ingredient in the water-dispersible granular pesticidal composition can be appropriately selected, but is preferably in the range of 0.1 to 50 parts by weight with respect to 100 parts by weight of the composition.

  The water-dispersible granular agricultural chemical composition used in the present invention can contain various auxiliary agents such as a surfactant, a binder, a solid carrier, a decomposition inhibitor, an antifoaming agent and a solvent.

  Examples of the surfactant include the following (A), (B), (C), (D), and (E).

(A) Nonionic surfactant:
(A-1) Polyethylene glycol surfactants: for example, polyoxyethylene alkyl _{(C 8 to 18)} ether, ethylene oxide adducts of alkyl naphthol, polyoxyethylene (mono or di) alkyl _{(C 8 to 12)} phenyl Ether, formalin condensate of polyoxyethylene (mono or di) alkyl ( _C8-12 ) phenyl ether, polyoxyethylene (mono, di or tri) phenyl phenyl ether, polyoxyethylene (mono, di or tri) benzyl phenyl Ether, polyoxypropylene (mono, di or tri) benzyl phenyl ether, polyoxyethylene (mono, di or tri) styryl phenyl ether, polyoxypropylene (mono, di or tri) styryl phenyl ether, polyoxyethylene Len (mono-, di- or tri-) styryl phenyl ether polymer, alkyl (C _{8 to 18)} polyoxyethylene polyoxypropylene block polymer ethers, alkyl (C _{8 to 12)} polyoxyethylene polyoxypropylene block polymer ether, poly Oxyethylene bisphenyl ether, polyoxyethylene resin acid ester, polyoxyethylene fatty acid ( _C8-18 ) monoester, polyoxyethylene fatty acid ( _C8-18 ) diester, polyoxyethylene sorbitan fatty acid ( _C8-18 ) ester , glycerol fatty acid ester ethylene oxide adduct, castor oil ethylene oxide adduct, hydrogenated castor oil ethylene oxide adduct, alkyl (C _{8 to 18)} amine ethylene oxide adduct Oyo Fatty _{(C 8 to 18)} amide ethylene oxide adducts.

(A-2) Polyhydric alcohol type surfactant: For example, glycerol fatty acid ester, polyglycerol fatty acid ester, pentaerythritol fatty acid ester, sorbitol fatty acid (C _8-18 ) ester, sorbitan fatty acid (C _8-18 ) ester, Examples thereof include sugar fatty acid esters, polyhydric alcohol alkyl ethers, and fatty acid alkanolamides.

  (A-3) Acetylene-based surfactant: Examples thereof include acetylene glycol, acetylene alcohol, an ethylene oxide adduct of acetylene glycol, and an ethylene oxide adduct of acetylene alcohol.

  (A-4) Other surfactants: Examples include alkyl glycosides.

(B) Anionic surfactant:
(B-1) Carboxylic acid type surfactant: For example, polyacrylic acid, polymethacrylic acid, polymaleic acid, polymaleic anhydride, maleic acid or maleic anhydride and an olefin (such as isobutylene and diisobutylene) Polymer, Copolymer of acrylic acid and itaconic acid, Copolymer of methacrylic acid and itaconic acid, Copolymer of maleic acid or maleic anhydride and styrene, Copolymer of acrylic acid and methacrylic acid, Acrylic acid Copolymer of acrylic acid and methyl ester of acrylic acid, copolymer of acrylic acid and vinyl acetate, copolymer of acrylic acid and maleic acid or maleic anhydride, N-methyl-fatty acid ( _C8-18 ) sarcosinate, resin _Examples thereof include carboxylic acids such as acids and fatty acids (C _8-18 ), and salts of these carboxylic acids.

(B-2) sulfate surfactants: for example, alkyl _{(C 8 to 18)} sulfates, polyoxyethylene alkyl _{(C 8 to 18)} ether sulfuric acid ester, polyoxyethylene (mono or di) alkyl _{(C 8 -12} ) phenyl ether sulfate, polyoxyethylene (mono or di) alkyl ( _C8-12 ) phenyl ether polymer sulfate, polyoxyethylene (mono, di or tri) phenyl phenyl ether sulfate, polyoxyethylene (Mono, di or tri) benzyl phenyl ether sulfate, polyoxyethylene (mono, di or tri) styryl phenyl ether sulfate, polyoxyethylene (mono, di or tri) styryl phenyl ether polymer sulfate, polyoxy Sulfate esters Ji Ren polyoxypropylene block polymers, sulfated oils, sulfated fatty acid esters, salts of sulfuric esters, and their sulfates, such as sulfated fatty acids and sulfated olefins.

(B-3) a sulfonic acid type surfactants: For example, paraffin _{(C 8 to 22)} sulfonic acid, alkyl _{(C 8 to 12)} benzene sulfonic acid, alkyl _{(C 8 to 12)} formalin condensate of benzenesulfonic acid, Formalin condensate of cresol sulfonic acid, α-olefin (C _8-16 ) sulfonic acid, dialkyl (C _8-12 ) sulfosuccinic acid, polyoxyethylene (mono or di) alkyl (C _8-12 ) phenyl ether sulfonic acid, Polyoxyethylene alkyl (C _8-18 ) ether sulfosuccinic acid half ester, naphthalene sulfonic acid, (mono or di) alkyl (C _1-6 ) naphthalene sulfonic acid, formalin condensate of naphthalene sulfonic acid, (mono or di) alkyl _{(C 1 to 6)} formalin condensates of naphthalenesulfonic acid , Formalin condensate of creosote oil sulfonic acid, alkyl (C _{8 to 12)} ether disulfonic acid, Igepon T (trade name), sulfonic acids such as a copolymer of polystyrene sulfonic acid and styrene sulfonic acid and methacrylic acid, and Examples thereof include salts of these sulfonic acids.

(B-4) Phosphate ester type surfactant: For example, alkyl (C _8-12 ) phosphate ester, polyoxyethylene alkyl (C _8-18 ) ether phosphate ester, polyoxyethylene (mono or di) alkyl (C _{8 -12} ) phenyl ether phosphate ester, polyoxyethylene (mono, di or tri) alkyl ( _C8-12 ) phenyl ether polymer phosphate ester, polyoxyethylene (mono, di or tri) phenyl phenyl ether phosphate ester, poly Oxyethylene (mono, di or tri) benzyl phenyl ether phosphate ester, polyoxyethylene (mono, di or tri) styryl phenyl ether phosphate ester, polyoxyethylene (mono, di or tri) styryl phenyl ether polymer phosphate ester, Poly Alkoxy polyoxypropylene block phosphate ester of the polymer, phosphatidylcholine, phosphoric acid esters, such as phosphatidylethanolamine imine and condensation phosphoric acid (e.g., tripolyphosphate, etc.), and salts of these phosphate esters.

  Examples of the salt in the above (B-1), (B-2), (B-3) and (B-4) include alkali metals (lithium, sodium, potassium, etc.), alkaline earth metals (calcium, magnesium, etc.) ), Ammonium and various amines (for example, alkylamine, cycloalkylamine and alkanolamine).

(C) Cationic surfactant:
Examples thereof include alkylamines, alkyl quaternary ammonium salts, alkylamine ethylene oxide adducts, and alkyl quaternary ammonium salt ethylene oxide adducts.

(D) Amphoteric surfactant:
Examples thereof include betaine type surfactants and amino acid type surfactants.

(E) Other surfactants:
For example, silicone surfactants and fluorine surfactants can be used.

  These surfactants can be used alone or in admixture of two or more, and the ratio in the case of mixing can be freely selected. The content of the surfactant in the water-dispersible granular agricultural chemical composition can be appropriately selected, but is preferably in the range of 0.5 to 20 parts by weight with respect to 100 parts by weight of the composition.

  Examples of the binder include dextrin (roasted dextrin and enzyme-modified dextrin, etc.), acid-decomposed starch, oxidized starch, pregelatinized starch, etherified starch (carboxymethyl starch, hydroxyalkyl starch, cationic starch, etc.), esterified starch ( Processed starch such as starch acetate and phosphate starch), crosslinked starch and grafted starch, natural substances such as sodium alginate, gum arabic, gelatin, tragacanth gum, locust bean gum and casein such as carboxymethylcellulose sodium salt, hydroxyethyl cellulose, Cellulose derivatives such as hydroxypropylcellulose, hydroxypropylmethylcellulose, methylcellulose, ethylcellulose and acetylcellulose; Polyethylene glycol, polypropylene glycol, polyethylene polypropylene block copolymer, polyvinyl alcohol, partially saponified vinyl acetate and vinyl ether copolymer, polyvinyl pyrrolidone, polyvinyl pyrrolidone and vinyl acetate copolymer, and other polymers such as polyacrylamide Is mentioned.

  Examples of the solid carrier include quartz, calcite, gypsum, dolomite, chalk, kaolinite, pyrophyllite, sericite, halosite, metahalosite, kibushi clay, glazed clay, porcelain stone, siegrite, and allophane. Natural minerals such as shirasu, kira, talc, bentonite, activated clay, acid clay, pumice, attapulgite, zeolite and diatomaceous earth, for example, natural minerals such as calcined clay, perlite, shirasu balloon, vermiculite, attapulgus clay and calcined diatomaceous earth Baked products such as magnesium carbonate, calcium carbonate, sodium carbonate, sodium bicarbonate, ammonium sulfate, sodium sulfate, magnesium sulfate, diammonium hydrogen phosphate, ammonium dihydrogen phosphate and potassium chloride, such as glucose, fructose , And Saccharides such as sugar and lactose, polysaccharides such as starch, powdered cellulose and dextrin, organic substances such as urea, urea derivatives, benzoic acid and benzoic acid salts, such as wood flour, corn cob, walnut shell and tobacco stem Plant, fly ash, white carbon, and fertilizer.

  Specific examples of bentonite include, for example, Kunigel VA (trade name / Kunimine Industry Co., Ltd.), Kunigel V2 (trade name / Kunimine Industry Co., Ltd.), Hotaka Bentonite (trade name / Toyojun Yoko Co., Ltd.) , Myogi bentonite (trade name / manufactured by Toyoshiro Yoko Co., Ltd.), Haruna bentonite (brand name / manufactured by Toyoshun Yoko Co., Ltd.), bentonite super clay (brand name / manufactured by Toyoshun Yoko Co., Ltd.) and granular bentonite ( Examples thereof include sodium bentonite such as trade name / Toyojun Yoko Co., Ltd. and calcium bentonite such as Kunibond (trade name / Kunimine Industries Co., Ltd.).

  Specific examples of natural minerals other than bentonite include H fine powder (trade name / manufactured by Asada Flour Milling Co., Ltd.), Neocarrier K (trade name / manufactured by Asada Flour Milling Co., Ltd.), Fusami K clay (trade name / fubashimi clay ( Co., Ltd.) and Tokuyuki F clay (trade name / manufactured by Showa Mining Co., Ltd.).

  Specific examples of calcium carbonate include Microcal 250 (trade name / Aokura Lime Industry Co., Ltd.), Microcal 100 (trade name / Aokura Industry Co., Ltd.), NS # 100 (trade name / Nitto Flour Industry ( NS # 200 (trade name / manufactured by Nitto Flour Chemical Co., Ltd.), NS # 3000 (trade name / manufactured by Nitto Flour Chemical Co., Ltd.) and Super SS (trade name / Maruo Calcium Co., Ltd.) Manufactured) and the like.

  Specific examples of white carbon include Carplex # 80D (trade name / Yoshio Shionogi Co., Ltd.), Carplex # 67 (trade name / Yoshio Shionogi Co., Ltd.), Carplex # 1120 (trade name / Shiono). Yoshigi Pharmaceutical Co., Ltd., Carplex #XR (trade name / Shinogi Pharmaceutical Co., Ltd.), Fine Seal A (trade name / Tokuyama Soda Co., Ltd.), Fine Seal E-50 (trade name / Tokuyama Soda Co., Ltd.) )), Fine Seal X-37 (trade name / Tokuyama Soda Co., Ltd.), Fine Seal K-41 (trade name / Tokuyama Soda Co., Ltd.), Fine Seal P-8 (trade name / Tokuyama Soda Co., Ltd.) , Toxeal U (brand name / Tokuyama Soda Co., Ltd.), Toxeal CU-N (brand name / Tokuyama Soda Co., Ltd.), Toxeal P (brand name / Tokuyama Soda Co., Ltd.), Toxeal NR (brand name / Tokuyama Soda Co., Ltd.) ), Nipsey NS (trade name / Nippon Silica Industry Co., Ltd.), Nip Seal NSK (trade name / Nippon Silica Industry Co., Ltd.), Nip Seal NA (trade name / Nippon Silica Industry Co., Ltd.), Syloid 244 (trade name / Fuji Devison Chemical) ), Cyroid 65 (trade name / Fuji Devison Chemical), Cyroid 308 (trade name / Fuji Devison Chemical), Mizukacil P-705 (trade name / Mizusawa Chemical Co., Ltd.), Mizukacil P-802 (trade name / Mizusawa Chemical) Co., Ltd.), Mizukasil P-78 (trade name / Mizusawa Chemical Co., Ltd.) and Mizukasil P-832 (trade name / Mizusawa Chemical Co., Ltd.), for example, Carplex CS-5 (trade name / Yoshio Shiono) Pharmaceutical Co., Ltd., Carplex CS-7 (trade name / Yoshio Shionogi Co., Ltd.) and Carplex CS-701 (trade name / Yoshio Shionogi Co., Ltd.) Sintered products of silica, such as Aerosil 130 (trade name / Nippon Aerosil Co., Ltd.), Aerosil 200 (trade name / Nippon Aerosil Co., Ltd.), Aerosil 380 (trade name / Nippon Aerosil Co., Ltd.) and Aerosil MOX80 (trade name) / Nippon Aerosil Co., Ltd.) anhydrous silica such as FLORITE R (trade name / Tokuyama Soda Co., Ltd.), FLORITE RN (trade name / Tokuyama Soda Co., Ltd.), Toyohero TH (trade name / Toyo Denka Co., Ltd.) Kogyo Co., Ltd.), Zonolite (trade name / Onoda Chemical) and Microcell E (trade name / Johns Manville) and other hydrous calcium silicates, for example, SIPERNAT D17 (trade name / Nippon Aerosil Co., Ltd.), Nipsil SS-10 (Product name / Nippon Silica Co., Ltd.), Nip Seal SS-20 (Product name / Nippon Silica Co., Ltd.) And nip seal SS-30P (trade name / Nihon Silica Co., Ltd.) and other surface-treated silicas such as Aerosil R972 (trade name / Nippon Aerosil Co., Ltd.), Aerosil R202 (trade name / Nippon Aerosil Co., Ltd.) And surface-treated silica made from anhydrous silica such as Aerosil R812 (trade name / Nippon Aerosil Co., Ltd.).

Examples of the solvent include aromatic hydrocarbons such as xylene, alkyl (C ₉ or C ₁₀ etc.) benzene, phenyl xylyl ethane and alkyl (C ₁ or C ₃ etc.) naphthalene, machine oil, normal paraffin, isoparaffin and naphthene. Aliphatic hydrocarbons such as kerosene, mixtures of aromatic and aliphatic hydrocarbons such as kerosene, alcohols such as ethanol, isopropanol, cyclohexanol, phenoxyethanol and benzyl alcohol, ethylene glycol, propylene glycol, diethylene glycol, hexylene glycol, Polyhydric alcohols such as polyethylene glycol and polypropylene glycol, propyl cellosolve, butyl cellosolve, phenyl cellosolve, propylene glycol monomethyl ether, propylene Ethers such as ethylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether and propylene glycol monophenyl ether, ketones such as acetophenone, cyclohexanone and γ-butyrolactone, fatty acid methyl esters, succinic acid dialkyl esters, glutamic acid dialkyl esters, Esters such as adipic acid dialkyl ester and phthalic acid dialkyl ester, acid amides such as N-alkyl (C ₁ , C ₈ or C ₁₂ ) pyrrolidone, soybean oil, linseed oil, rapeseed oil, coconut oil, cottonseed oil and castor oil Oils and fats, dimethyl sulfoxide and water.

  The water-dispersible granular agricultural chemical composition used in the present invention can be produced, for example, by mixing an agricultural chemical active ingredient, a surfactant, and other auxiliary agents and water as necessary, and then using a granulator. The method of drying after granulation is mentioned. Granulation can be produced using a fluidized bed granulator, a spray drying granulator, an agitation granulator, a compression granulator, a rolling granulator, an extrusion granulator or the like.

  The usefulness of the present invention will be specifically described below. However, the present invention is not limited to these. In Reference Examples 1 and 2 below, one or more herbicidal active ingredients other than the herbicidal active ingredient used can be further contained. As such herbicidal active ingredients, indanophan, benzobicyclon, fentolazamide, fentorazol, difenron, chromeprop, pyriftalide, pretilachlor, oxadichromemephone, cihalohop butyl and pyraclonil, which are conventionally used as pesticides for paddy fields, are suitable. ing.

[Reference Example 1]
2.76 parts of pyrazosulfuron ethyl (generic name / herbicidal active ingredient, purity 99.3%), mixture of formalin condensate of lignin sulfonic acid sodium salt and naphthalene sulfonic acid sodium salt (trade name / Craft Sparse DD-5, Mead West Beco Asia) 14.0 parts, sodium salt of special aromatic sulfonic acid formalin condensate (trade name / Demol SN-B, manufactured by Kao Corporation) 5.0 parts, ammonium sulfate (industrial) 74.24 Parts, water-containing amorphous silicon dioxide (trade name / Carplex # 80D, manufactured by DSL. Japan KK) 0.8 parts, citric acid (anhydride) 1.00 parts fine with a jet ohmizer (manufactured by Seishin Enterprise) Crushed. 97.8 parts of this finely pulverized product, 2.00 parts of polyoxyethylene alkyl allyl ether sulfonate (trade name / New Calgen PG-170, manufactured by Takemoto Yushi Co., Ltd.), polydimethylsiloxane emulsion (trade name / SAG672, Momentive Performance Materials Japan GK) 0.2 parts and 23 parts water were added and mixed. Next, granulation was performed using an extrusion granulator equipped with a screen having a diameter of 0.5 mm. After drying at 50 ° C., a water dispersible granular pesticide composition was obtained by sizing with a 355-710 μm sieve and filling the pesticide packaging bag of the present invention.
[Reference Example 2]
Pyrazosulfuron ethyl (generic name / herbicidal active ingredient, purity 99.2%) 3.62 parts, lignin sulfonic acid sodium salt (trade name / UFOXANE 3A, Borregard Lignotech) 4.00 parts, special aromatic sulfonic acid formalin condensation Sodium salt (trade name / Demol SN-B, Kao Co., Ltd.) 5.00 parts, ammonium sulfate (industrial) 20.00 parts, clay mineral powder (trade name / Neocarrier K, Asada Milling ( 65.18 parts (made by Co., Ltd.) were finely pulverized with a jet ohmizer (manufactured by Seishin Company). 97.80 parts of this finely pulverized product, 2.00 parts of a polyoxyethylene alkylphenyl ether sulfate ester (trade name / Hitenol NE-15, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), polydimethylsiloxane emulsion (trade name) / SAG672, manufactured by Momentive Performance Materials Japan GK) 0.20 parts and 22 parts of water were added and mixed. Next, granulation was performed using an extrusion granulator equipped with a screen having a diameter of 0.5 mm. After drying at 50 ° C., a water dispersible granular pesticide composition was obtained by sizing with a 355-710 μm sieve and filling the pesticide packaging bag of the present invention.

[Example 1]
A unicell nonwoven fabric (brand name BT-030EA) having a basis weight of 30 g / m ² was cut into a rectangular shape having a length of 6 cm and a width of 4 cm. About these two nonwoven fabrics, the right and left and the bottom were heat-sealed, and the nonwoven fabric bag which made the upper part an opening part was created.

[Example 2]
A nonwoven fabric bag was prepared in the same manner as in Example 1 from a Unitika nonwoven fabric (trade name Elves / brand S0203WDO) having a basis weight of 20 g / m ² .

Example 3
A nonwoven fabric bag was prepared in the same manner as in Example 1 from a Unitika nonwoven fabric (trade name Elves / brand S0303WDO) having a basis weight of 30 g / m ² .

Example 4
A nonwoven fabric bag was prepared in the same manner as in Example 1 from a Unitika nonwoven fabric (trade name: Terramac / brand G0203WTO) having a basis weight of 20 g / m ² .

Example 5
A nonwoven fabric bag was prepared in the same manner as in Example 1 from a Unitika nonwoven fabric (trade name: Terramac / brand G0303WTO) having a basis weight of 30 g / m ² .

[Comparative Example 1]
A nonwoven fabric bag was prepared in the same manner as in Example 1 from a Unicel nonwoven fabric (brand name BT-040EA) having a basis weight of 40 g / m ² .

[Comparative Example 2]
A non-woven fabric bag was prepared in the same manner as in Example 1 from a Unicel non-woven fabric (brand name BT-050EA) having a basis weight of 50 g / m ² .

[Comparative Example 3]
A nonwoven fabric bag was prepared in the same manner as in Example 1 from a nonwoven fabric made of Unitika having a basis weight of 15 g / m ² (trade name Elves / brand S0153WDO).

[Comparative Example 4]
A non-woven bag was prepared in the same manner as in Example 1 from a Unitika non-woven fabric having a basis weight of 40 g / m ² (trade name Elves / brand S0403 WDO).

[Comparative Example 5]
A non-woven bag was prepared in the same manner as in Example 1 from a unitica non-woven fabric (trade name Elves / brand S0503WDO) having a basis weight of 50 g / m ² .

[Test Example 1] Leakage of water-dispersible granular agrochemical composition from non-woven bag 2 g of double-star SB granule (trade name / manufactured by Nissan Chemical Industries, Ltd.), which is a water-dispersible granular agrochemical composition, was compared with Examples 1-5. The bag was made of the nonwoven fabric bag of Examples 1 to 5, and the opening of the bag was closed with a string. The leakage from the bag was visually observed. The results are shown in Table 1.

Table 1 ――――――――――――――――――――――――――――
Weight per unit area (g / m ² ) Leakage of granular pesticide composition ――――――――――――――――――――――――――――
Example 1 30 None Example 2 20 None Example 3 30 None Example 4 20 None Example 5 30 None Comparative Example 3 15 Available ――――――――――――――――――― ――――――――
In the nonwoven fabric bag having a basis weight of 15 g / m ² , double star SB granules leaked out.

[Test Example 2] Leakage of water-dispersible granular agrochemical composition from non-woven bag 2 g of Sirius Ibuki granule (product name / Nissan Chemical Industry Co., Ltd.), which is a water-dispersible granular agrochemical composition, were used in Examples 1 to 5 and Comparative Example It was packed in 1-5 non-woven bags, and leakage from the bags was observed visually. The results are shown in Table 2.

Table 2 ――――――――――――――――――――――――――――
Weight per unit area (g / m ² ) Leakage of granular pesticide composition ――――――――――――――――――――――――――――
Example 1 30 None Example 2 20 None Example 3 30 None Example 4 20 None Example 5 30 None Comparative Example 3 15 Available ――――――――――――――――――― ――――――――
In a nonwoven fabric bag having a basis weight of 15 g / m ² , Sirius Ibuki granules leaked out.

[Test Example 3] Elution from a non-woven bag of a water dispersible granular agricultural chemical composition Examples 1 to 2 filled with 2 g of double star SB granules (trade name / manufactured by Nissan Chemical Industries, Ltd.) which is a water dispersible granular agricultural chemical composition. 5 and Comparative Examples 1, 2, 4, and 5 were placed in a beaker containing 2 liters of 10 ° C. hard water. The bag was closed at the opening with a string, and the beaker and the bag were tied with a string so that the bag was fixed. A stirrer blade was installed in the beaker water, and a water flow was created by rotating it at about 500 rpm to elute the water-dispersible granular agricultural chemical composition from the bag. The amount of the water dispersible granular agricultural chemical composition remaining in the bag over time was observed, and the remaining amount was expressed in%. The results are shown in Table 3.

Table 3 ―――――――――――――――――――――――――――――――――――――
Weight per unit (g / m ² ) 10 minutes 20 minutes 30 minutes 40 minutes 50 minutes 60 minutes ――――――――――――――――――――――――――――――― ――――――
Example 1 30 80 60 30 10 0 0
Example 2 20 40 10 0 0 0 0
Example 3 30 60 30 10 0 0 0
Example 4 20 60 30 0 0 0 0
Example 5 30 80 40 10 0 0 0
Comparative Example 1 40 90 80 70 40 20 10
Comparative Example 2 50 90 90 80 60 40 30
Comparative Example 4 40 80 50 40 30 20 10
Comparative Example 5 50 90 80 60 50 40 30
―――――――――――――――――――――――――――――――――――――
In the nonwoven fabric bag having a basis weight of 40 g / m ² or more, the dissolution of the double star SB granule from the bag was slow.

[Test Example 4] Elution from a non-woven bag of a water dispersible granular agricultural chemical composition Examples 1 to 5 filled with 2 g of Sirius Ibuki granule (trade name / Nissan Chemical Industry Co., Ltd.) which is a water dispersible granular agricultural chemical composition. And the bag made from the nonwoven fabric of Comparative Examples 1, 2, 4, and 5 was put into a beaker containing 2 liters of 10 ° C. hard water. The bag was closed at the opening with a string, and the bag and beaker were tied with a string so that the bag was fixed. A stirrer blade was installed in the beaker water, and a water flow was created by rotating it at about 500 rpm to elute the water-dispersible granular agricultural chemical composition from the bag. The amount of the water dispersible granular agricultural chemical composition remaining in the bag over time was observed, and the remaining amount was expressed in%. The results are shown in Table 4.

Table 4 ―――――――――――――――――――――――――――――――――――――
Weight per unit (g / m ² ) 10 minutes 20 minutes 30 minutes 40 minutes 50 minutes 60 minutes ――――――――――――――――――――――――――――――― ――――――
Example 1 30 40 20 0 0 0 0
Example 2 20 20 10 0 0 0 0
Example 3 30 30 20 0 0 0 0
Example 4 20 20 0 0 0 0 0
Example 5 30 30 10 0 0 0 0
Comparative Example 1 40 60 30 20 10 0 0
Comparative Example 2 50 70 50 40 30 10 0
Comparative Example 4 40 40 30 20 10 0 0
Comparative Example 5 50 60 40 30 10 0 0
―――――――――――――――――――――――――――――――――――――
In the nonwoven fabric bag having a basis weight of 40 g / m ² or more, the dissolution of the Sirius Ibuki granule from the bag was slow.

Example 6
A unicell nonwoven fabric (brand name BT-030EA) having a basis weight of 30 g / m ² was cut into a rectangular shape having a length of 30 cm and a width of 20 cm. About these two nonwoven fabrics, the right and left and the bottom were heat-sealed, and the nonwoven fabric bag which made the upper part an opening part was created.

Example 7
A nonwoven fabric bag was prepared in the same manner as in Example 6 from a Unitika nonwoven fabric (trade name Elves / brand S0203WDO) having a basis weight of 20 g / m ² .

Example 8
A nonwoven fabric bag was prepared in the same manner as in Example 6 from a Unitika nonwoven fabric (trade name Elves / brand name S0303WDO) having a basis weight of 30 g / m ² .

[Comparative Example 6]
A non-woven bag was produced in the same manner as in Example 6 from a Unicel non-woven fabric (brand name BT-050EA) having a basis weight of 50 g / m ² .

[Test Example 5] Field test 120 g of Sirius Ibuki granule, which is a water-dispersible granular agricultural chemical composition, was filled into the non-woven bag of Example 6 (weighing 30 g / m ² ), and the opening was closed with a string. A 20a paddy field was prepared at one water mouth, and on the 6th day after planting, when the water depth was 2 cm, the pesticide-containing bag was placed directly under the water mouth and fixed so as not to move from the vicinity of the water mouth with a string. When water entered from the water inlet, the water-dispersible granular agricultural chemical composition eluted from the bag in 20 minutes. When weeds were observed after 30 days, weeds, firefly, firefly and broadleaf were all dead. There was no phytotoxicity to rice.

[Test Example 6] Field test A 120 g double star SB granule, which is a water-dispersible granular agricultural chemical composition, was filled in the non-woven bag of Example 6 (weighing 30 g / m ² ), and the opening was closed with a string. Further, 120 g of double star SB granules, which is a water-dispersible granular agricultural chemical composition, was filled in the non-woven bag of Example 8 (basis weight 30 g / m ² ), and the opening was closed with a string. Prepare a paddy field with 30a at one water mouth, and on the 4th day after planting, when the water depth is 1.5cm, install the two bags of the pesticide packaging bags directly below the water mouth, and fix them so that they do not move from the water mouth near the water mouth. did. When water entered from the water inlet, the water-dispersible granular agricultural chemical composition filled in the bag of Example 6 was eluted from the bag in 30 minutes. The water dispersible granular agricultural chemical composition filled in the bag of Example 8 was eluted from the bag in 15 minutes.

[Test Example 7] Field test 60 g of Sirius Ibuki granule, which is a water-dispersible granular agrochemical composition, was filled in the non-woven bag of Example 6 (weighing 30 g / m ² ), and the opening was closed with a string. Moreover, 80 g of double star SB granules, which is a water-dispersible granular agricultural chemical composition, were filled in the non-woven bag (weight per unit area: 20 g / m ² ) of Example 7, and the opening was closed with a string. Further, 80 g of double star SB granules, which is a water-dispersible granular agricultural chemical composition, was filled in the non-woven bag of Example 8 (weighing 30 g / m ² ), and the opening was closed with a string. A paddy field of 30a was prepared at one water mouth, and on the fourth day after planting, when the water depth was 2 cm, three bags of the pesticide packaging bag were placed directly under the water mouth and fixed so as not to move from the vicinity of the water mouth with a string. When water entered from the water inlet, the water dispersible granular agricultural chemical composition filled in any of the bags of Examples 6, 7, and 8 was also eluted from the bag in 10 minutes.

[Test Example 8] Field test 120 g of Sirius Ibuki granule, which is a water-dispersible granular agricultural chemical composition, was filled into the non-woven bag (weight per unit area: 50 g / m ² ) of Comparative Example 6, and the opening was closed with a string. A paddy field of 20a was prepared at one water mouth, and on the sixth day after planting, when the water depth was 2 cm, the pesticide packaging bag was placed directly under the water mouth and fixed so as not to move from the vicinity of the water mouth with a string. When water entered from the water inlet, the water-dispersible granular agricultural chemical composition remained in the bag even for 30 minutes. The water-dispersible granular agricultural chemical composition could not be eluted from the bag unless the bag was vigorously shaken by hand in the water at the mouth.

Example 9
A polyethylene mesh sheet having a mesh size of 292 μm (manufactured by Samplatech / brand PE # 70) was cut into a rectangular shape having a length of 6 cm and a width of 4 cm. With respect to the two polyethylene mesh sheets, left and right and bottom portions were heat-sealed, and a mesh sheet bag having an upper portion as an opening was prepared.

Example 10
A mesh sheet bag was prepared in the same manner as in Example 9 from a polyethylene mesh sheet having a mesh size of 261 μm (manufactured by Sampleratech / brand PE # 80).

Example 11
A mesh sheet bag was prepared in the same manner as in Example 9 from a polyethylene mesh sheet having a mesh size of 224 μm (manufactured by Sampleratech / brand PE # 100).

Example 12
A mesh sheet bag was prepared in the same manner as in Example 9 from a polyethylene mesh sheet having a mesh size of 155 μm (manufactured by Sampleratech / brand PE # 140).

Example 13
A mesh sheet bag was prepared in the same manner as in Example 9 from a polyethylene mesh sheet having a mesh size of 112 μm (manufactured by Sampleratech / brand PE # 200).

[Comparative Example 7]
A mesh sheet bag was prepared in the same manner as in Example 9 from a polyethylene mesh sheet having a mesh opening of 351 μm (manufactured by Sampleratech / brand PE # 60).

[Test Example 9] Leakage of water-dispersible granular pesticide composition from mesh sheet bag 2 g of double-star SB granules (trade name / manufactured by Nissan Chemical Industries, Ltd.) which is a water-dispersible granular pesticide composition were used in Examples 9 to 13 and The mesh sheet bag of Comparative Example 7 was packed, and the bag opening was closed with a string. The leakage from the bag was visually observed. The results are shown in Table 5.

Table 5 ――――――――――――――――――――――――――――
Aperture (μm) Leakage of granular pesticide composition ――――――――――――――――――――――――――――
Example 9 292 None Example 10 261 None Example 11 224 None Example 12 155 None Comparative Example 7 351 Yes ――――――――――――――――――――――――― ―――
In a mesh sheet bag with an opening of 351 μm, double star SB granules leaked out.

[Test Example 10] Leakage of water-dispersible granular agricultural chemical composition from mesh sheet bag Example 9 and Example 11 2 g of Sirius Ibuki granule (trade name / Nissan Chemical Industry Co., Ltd.) which is a water-dispersible granular agricultural chemical composition ˜13 and the mesh sheet bag of Comparative Example 7, and the opening of the bag was closed with a string. The leakage from the bag was visually observed. The results are shown in Table 6.

Table 6 ――――――――――――――――――――――――――――
Aperture (μm) Leakage of granular pesticide composition ――――――――――――――――――――――――――――
Example 9 292 None Example 11 224 None Example 12 155 None Comparative Example 7 351 Yes ―――――――――――――――――――――――――――
In the mesh sheet bag with an opening of 351 μm, Sirius Ibuki granules leaked out.

[Test Example 11] Elution from a mesh sheet bag of a water dispersible granular agricultural chemical composition Example 9 filled with 2 g of double star SB granules (trade name / manufactured by Nissan Chemical Industries, Ltd.) which is a water dispersible granular agricultural chemical composition. 11, 12 and 13 mesh sheet bags were put into a beaker containing 2 liters of 10 ° C. hard water. The bag was closed at the opening with a string, and the beaker and the bag were tied with a string so that the bag was fixed. A stirrer blade was installed in the beaker water, and a water flow was created by rotating it at about 500 rpm to elute the water-dispersible granular agricultural chemical composition from the bag. The amount of the water dispersible granular agricultural chemical composition remaining in the bag over time was observed, and the remaining amount was expressed in%. The results are shown in Table 7.

Table 7 ―――――――――――――――――――――――――――――――――――
Aperture (μm) 10 minutes 20 minutes 30 minutes 40 minutes 50 minutes ―――――――――――――――――――――――――――――――――――
Example 9 292 30 0 0 0 0
Example 10 261 40 0 0 0 0
Example 11 224 50 20 0 0 0
Example 12 155 50 30 0 0 0
Example 13 112 70 40 20 10 0
―――――――――――――――――――――――――――――――――――

[Test Example 12] Elution from a mesh sheet bag of a water dispersible granular agricultural chemical composition Example 9 filled with 2 g of Sirius Ibuki granule (trade name / Nissan Chemical Industrial Co., Ltd.) which is a water dispersible granular agricultural chemical composition. The bags made of 10, 11, 12, and 13 mesh sheets were put into a beaker containing 2 liters of 10 ° C. hard water. The bag was closed at the opening with a string, and the bag and beaker were tied with a string so that the bag was fixed. A stirrer blade was installed in the beaker water, and a water flow was created by rotating it at about 500 rpm to elute the water-dispersible granular agricultural chemical composition from the bag. The amount of the water dispersible granular agricultural chemical composition remaining in the bag over time was observed, and the remaining amount was expressed in%. The results are shown in Table 8.

Table 8 ――――――――――――――――――――――――――――――――――
Aperture (μm) 10 minutes 20 minutes 30 minutes 40 minutes ―――――――――――――――――――――――――――――――――
Example 9 292 0 0 0 0
Example 11 224 30 10 0 0
Example 12 155 40 20 0 0
Example 13 112 50 30 10 0
――――――――――――――――――――――――――――――――――

Example 14
A nylon mesh sheet (made by Toray / brand 2030BB) having a mesh size of 229 μm and made of bright yarn of 20 denier and 30 denier was sewn into a drawstring bag with a length of 30 cm and a width of 15 cm. It is a drawstring bag shape that can close the opening by passing the string in the lateral direction.

[Test Example 13] Field test A 272 g double star SB granule, which is a water-dispersible granular agricultural chemical composition, was filled into a nylon mesh drawstring bag of Example 14, and the opening was closed with a string. A paddy field of 34a was prepared at one water mouth, and on the fifth day after planting, when the water depth was 3 cm, the pesticide packaging bag was installed directly under the water mouth and fixed so as not to move from the vicinity of the water mouth with a string. When water entered from the water inlet, the water-dispersible granular agricultural chemical composition eluted from the bag in 29 minutes. After 41 days, when weeds were observed to spontaneously occur, no weeds such as kogi, firefly, and broadleaf were found. There was no phytotoxicity to rice.

According to the present invention, labor-saving application of agricultural chemicals can be performed.

Claims (9)

A water dispersible granular pesticide composition is formed in a paddy field mouth packaged with one or more packaging materials selected from the group consisting of a nonwoven fabric having a basis weight of 17 to 35 g / m ² and a mesh sheet having an opening of 100 to 330 μm. Pesticide packaging bag to be installed and used. Pesticide packaging bag of claim 1 wherein the packaging material is a nonwoven basis weight is 17~35g / ^{m 2.} The pesticide packaging bag according to claim 1, wherein the packaging material is a nonwoven fabric having a basis weight of 20 to 30 g / m ² .   The pesticide packaging bag according to claim 1, wherein the packaging material is a mesh sheet having an opening of 100 to 330 µm.   The pesticide packaging bag according to claim 1, wherein the packaging material is a mesh sheet having an opening of 120 to 300 μm.   The pesticide packaging bag according to any one of claims 1 to 5, which is filled with 20 to 1000 g of a water-dispersible granular pesticide composition.   The pesticide packaging bag according to any one of claims 1 to 6, wherein the particle size of the water-dispersible granular pesticide composition is 300 µm to 700 µm. A pesticide packaging bag in which the water-dispersible granular pesticide composition is packaged by one or more packaging materials selected from the group consisting of a nonwoven fabric having a basis weight of 17 to 35 g / m ² and a mesh sheet having an opening of 100 to 330 μm. Pesticide application method to install in the paddy field. The method for applying a pesticide according to claim 8, wherein the pesticide packaging bag is installed in a water flow at a paddy water mouth.