Water-based suspension-type agrichemical composition

Abstract

The present invention provides a water-based suspension-type agrichemical composition which is prevented from the growth of crystals during storage and the formation of air bubbles during dilution. The present invention also provides a water-based suspension-type agrichemical composition comprising (a) inpyrfluxam, (b) at least one agriculturally active component having a melting point of 50°C or higher (excluding inpyrfluxam), (c) a ligninsulfonate salt and (d) a phosphoric acid ether salt of a polyoxyalkylene allylphenyl ether.

Description

Aqueous suspension pesticide composition

[0001] This patent application claims priority under the Paris Convention to and the benefit of Japanese Patent Application No. 2022-040499 (filed March 15, 2022), the entire contents of which are incorporated herein by reference.

[0002] The present invention relates to an aqueous suspension concentrate pesticidal composition.

[0003] Conventionally, pesticide formulations containing inpirfluxam and another pesticidal active ingredient have been known as agricultural fungicides and have been put to practical use (see, for example, Patent Document 1).

[0004] On the other hand, in order to solve the problem of dusting during preparation of spray solutions, which can occur with wettable powders, aqueous suspension pesticide compositions have been proposed (see, for example, Patent Document 2).

[0005] JP 2011-246452 A JP 2003-95803 A

[0006] When developing an aqueous suspension pesticide composition, depending on the pesticide active ingredient and formulation adjuvants used, crystal growth may occur during transportation or storage, or a large amount of bubbles may be generated during preparation of the diluted solution, which may cause nozzle clogging during spraying.

[0007] The present inventors conducted extensive research to solve these problems and discovered an aqueous suspension concentrate pesticide composition that suppresses crystal growth during storage and bubble formation upon dilution. Specifically, the present invention includes the following [1] to

[11] . [1] An aqueous suspension concentrate pesticide composition comprising (a) inpirfluxam, (b) one or more pesticidal active ingredients (excluding inpirfluxam) having a melting point of 50°C or higher, (c) a lignin sulfonate, and (d) a polyoxyalkylene aryl phenyl ether phosphate ester salt. [2] The aqueous suspension concentrate pesticidal composition according to [1], wherein the pesticidal active ingredient (b) having a melting point of 50°C or higher is one or more selected from the group consisting of a fungicidal active ingredient, an insecticidal active ingredient, an acaricidal active ingredient, and a nematicidal active ingredient. [3] The aqueous suspension concentrate pesticidal composition according to [1], wherein the pesticidal active ingredient (b) having a melting point of 50°C or higher includes a fungicidal active ingredient. [4] The aqueous suspension concentrate pesticide composition according to [1], wherein the (b) pesticidal active ingredient having a melting point of 50°C or higher comprises one or more selected from the group consisting of a sterol biosynthesis inhibitor and a mitochondrial electron transport complex III inhibitor. [5] The aqueous suspension concentrate pesticidal composition according to any one of [1] to [4], wherein the (b) pesticidal active ingredient having a melting point of 50°C or higher comprises one or more selected from the group consisting of a sterol biosynthesis inhibitor and a mitochondrial electron transport complex III inhibitor. [6] The aqueous suspension concentrate pesticidal composition according to [5], wherein the (b) pesticidal active ingredient having a melting point of 50°C or higher comprises a sterol biosynthesis inhibitor and a mitochondrial electron transport complex III inhibitor. [7] The aqueous suspension concentrate pesticidal composition according to any one of [1] to [6], wherein the weight ratio of (c) lignin sulfonate to (d) polyoxyalkylene aryl phenyl ether phosphate ester salt is 6:1 to 1:2. [8] The pesticidal aqueous suspension concentrate according to any one of [1] to [7], wherein the weight ratio of the total amount of (a) inpirfluxam and (b) a pesticidal active ingredient having a melting point of 50°C or higher to the total amount of (c) lignin sulfonate and (d) polyoxyalkylene aryl phenyl ether phosphate ester salt is 15:1 to 1:1. [9] The pesticidal aqueous suspension concentrate according to any one of [1] to [8], further comprising a pesticidal active ingredient other than (a) inpirfluxam and (b) a pesticidal active ingredient having a melting point of 50°C or higher.

[10] The aqueous suspension concentrate pesticidal composition according to [9], wherein the pesticidal active ingredient other than (a) inpirfluxam and (b) a pesticidal active ingredient having a melting point of 50°C or higher is a biopesticide active ingredient.

[11] A method for improving the storage stability of an aqueous suspension concentrate pesticidal composition, comprising the step of adding (c) a lignin sulfonate and (d) a polyoxyalkylene aryl phenyl ether phosphate ester salt to a composition containing one or more of (a) inpirfluxam and (b) a pesticidal active ingredient having a melting point of 50°C or higher (excluding inpirfluxam).

[0008] According to the present invention, it is possible to provide an aqueous suspension pesticidal composition in which crystal growth during storage and foam generation during preparation of a spray solution are both suppressed.

[0009] The pesticidal aqueous suspension concentrate of the present invention (hereinafter referred to as the composition of the present invention) contains inpirfluxam. The content of inpirfluxam is usually 1 to 20% by weight, preferably 3 to 10% by weight, based on 100% by weight of the composition of the present invention.

[0010] The composition of the present invention contains a pesticidal active ingredient (hereinafter, sometimes referred to as pesticidal active ingredient (b)) having a melting point of 50°C or higher, excluding impirfluxam. The composition of the present invention may contain one type of pesticidal active ingredient (b), or two or more types (e.g., three, four, or five types). The total content of the pesticidal active ingredients (b) is usually 3 to 30% by weight, preferably 5 to 20% by weight, based on 100% by weight of the composition of the present invention.

[0011] The total content of inpirfluxam and the pesticidal active ingredient (b) is usually 4 to 50% by weight, preferably 5 to 40% by weight, more preferably 8 to 40% by weight, and even more preferably 10 to 30% by weight, based on 100% by weight of the composition of the present invention.

[0012] The pesticidal active ingredient (b) used in the composition of the present invention may be one or more selected from the group consisting of insecticidal active ingredients, acaricidal active ingredients, nematicidal active ingredients, fungicidal active ingredients, herbicidal active ingredients, plant growth regulating active ingredients, phytotoxicity reducing ingredients, synergists, repellent active ingredients, molluscicidal active ingredients, and insect pheromone active ingredients.

[0013] Examples of such insecticidal active ingredients, acaricidal active ingredients, and nematicidal active ingredients include deltamethrin, tralomethrin, acrinathrin, bifenthrin, propoxur, isoprocarb, xylylcarb, metolcarb, thiodicarb, XMC, carbaryl, pirimicarb, carbofuran, methomyl, fenoxycarb, acephate, trichlorfon, tetrachlorvinphos, dimethylvinphos, pyridaphenthion, azinphos-ethyl, azinphos-methyl, diflubenzuron, chlorfluazuron, lufenuron, hexaflumuron, flufenoc, Sulon, flucycloxuron, cyromazine, diafenthiuron, hexythiazox, novaluron, teflubenzuron, triflumuron, imidacloprid, acetamiprid, clothianidin, nitenpyram, thiamethoxam, dinotefuran, thiacloprid, spinosad, flubendiamide, chlorantraniliprole, cyantraniliprole, tetraniliprole, cyclaniliprole, fipronil, ethiprole, spirotetramat, spiromesifen, spirodiclofen, spiropydione, triflumezopyrim, sulfoxaf Lor, abamectin, emamectin benzoate, lepimectin, milbemectin, pymetrozine, pyrifluquinazone, clofentezine, hexythiazox, etoxazole, chlorfenapyr, cartap, thiocyclam, bensultap, buprofezin, chromafenozide, methoxyfenozide, tebufenozide, amitraz, fluacrypyrim, bifenazate, fenpyroximate, pyrimidifen, pyridaben, tebufenpyrad, tolfenpyrad, indoxacarb, oxazosulfil, metaflumizone, cyenopyraf These include fluphen, cyflumetofen, piflubumid, flonicamid, broflanilide, fluxamethamide, flupirimine, flometoquin, benzpyrimoxane, fenazaquin, hydramethylnon, triazamate, sulfluramide, boric acid, spinetoram, beta-cyfluthrin, alpha-cypermethrin, thioxazafen, afidopiropen, fluazaindolizine, fluopyram, isocycloceram, ginpropylpiridaz, cyclobutrifluram, beta-cypermethrin, epsilon-monfluorothrin, and flupyradifurone.

[0014] Examples of such fungicidal active ingredients include fenpyrazamine, mandestrobin, benomyl, carbendazim, thiabendazole, thiophanate methyl, diethofencarb, procymidone, iprodione, vinclozolin, diniconazole, epoxiconazole, tebuconazole, difenoconazole, cyproconazole, flusilazole, triadimefon, metalaxyl, furametpyr, mepronil, flutolanil, thifluzamide, tolclofos-methyl, and fosetyl. Aluminum, pyrazophos, pyrimethanil, mepanipyrim, cyprodinil, fludioxonil, fenpiclonil, blasticidin S, kasugamycin, polyoxin, validamycin, azoxystrobin, kresoxim-methyl, metominostrobin, chlorothalonil, mancozeb, captan, folpet, tricyclazole, pyroquilon, probenazole, fthalide, cymoxanil, dimethomorph, famoxadone, oxolinic acid, fluazinam, ferimzone, diclocymet, orysastrobin, isotianil, tiadinil, thiuram, picoxystrobin, trifloxystrobin, fluoxastrobin, fenamidon, pyribencarb, fenbuco nazole, hexaconazole, imibenconazole, ipconazole, metconazole, myclobutanil, simeconazole, hydroxyisoxazole, pencycuron, fluopicolide, pyriophenone, isofetamide, fluopyram, thifluzamide, fluxapyroxad, isopyrazam, penflufen, penthiopyrad, boscalid, pyraziflumide, cyazofamid, amisulbrom, ametoctrazine, cyprodinil, mepanipyrim, oxathiapiproline, triforine, fenarimol, oxpoconazole fumarate, fenhexamid, pyributicarb, benthiavalicarb isopropyl, mandipropamid, tolprocarb, acibenzolar-S-methyl, fosetylAluminum, flusulfamide, flutianil, diclobenthiazox, tebufloquine, picarbutrazox, ziram, iminoctadine albesilate, iminoctadine acetate, dithianon, fluorimide, benzovindiflupyr, prothioconazole, carboxin, pydiflumetofen, flutriafol, triticonazole, fluquinconazole, methyltetraprole, fenpicoxamide, sedaxane, isoflucipram, silthiofam, bixafe These include flufluconazole, dimoxystrobin, pyridaclomethyl, ipflufenoquin, bromuconazole, triadimenol, florylpicoxamide, fluoxapiproline, ethaboxam, quinofumelin, cyflufenamid, penconazole, proquinazid, pyraclostrobin, triflumizole, dodemorph, propamocarb, aminopyrifen, mefentrifluconazole, flufenoxadiazam, and fluoxytioconazole.

[0015] Examples of such herbicidal active ingredients include atrazine, metribuzin, fluometuron, isoproturon, bromoxynil, ioxynil, pendimethalin, 2,4-D and its salts or esters, dicamba and its salts, floxypyr, mecoprop, bensulfuron methyl, metsulfuron methyl, nicosulfuron, primisulfuron methyl, cyclosulfamuron, imazosulfuron, propyrisulfuron, sulfosulfuron, imazapyr, imazaquin, imazethapyr, bispyribac-sodium salt, acifluorfen, acifluorfen-sodium salt, sulfentrazone, paraquat, paraquat dichloride, flumetsulam, triflusulfuron methyl, fenoxaprop-P-ethyl, diflufenican, norflurazon, isoxaflutole, glufosinate and its salts, glyphosate and its salts, and bentazon. , mefenacet, propanil, fluthiacet, fluthiacet-methyl, flumiclorac pentyl, flumioxazin, bromobutide, pentoxazone, fenquinotrione, pyraclonil, metazosulfuron, pyrimisulfan, triafamone, tefuryltrione, tolpyralate, pyroxasulfone, fenoxasulfone, ipfencarbazone, cyclopirimorate, florpyrauxifenbenzyl, cloransulam, diclosulam, imazamox, chlorimuron-ethyl, benfluralin, bicyclopyrone, dimethamethrine, dithiopyr, fluoroglycofen-ethyl, indanofan, and propaquizafop.

[0016] Such plant growth regulating active ingredients include maleic hydrazide, chlormequat chloride, ethephon, gibberellic acid, mepiquat chloride, thidiazuron, inabenfide, paclobutrazol, AVG, uniconazole P, and prohexadione calcium.

[0017] Preferred pesticide active ingredients (b) include fungicidal active ingredients. Preferred fungicidal active ingredients include sterol biosynthesis inhibitors and mitochondrial electron transport chain complex III inhibitors. Examples of sterol biosynthesis inhibitors include cyproconazole, difenoconazole, fenbuconazole, hexaconazole, imibenconazole, ipconazole, metconazole, myclobutanil, simeconazole, tebuconazole, prothioconazole, mefentrifluconazole, epoxiconazole, bromuconazole, and fluoxytioconazol. Examples of mitochondrial electron transport chain complex III inhibitors include picoxystrobin, trifloxystrobin, fluoxastrobin, fenamidone, orysastrobin, mandestrobin, azoxystrobin, kresoxim-methyl, metominostrobin, and pyraclostrobin. Other preferred fungicidal active ingredients include chlorothalonil, mancozeb, ethaboxam, and flufenoxadiazam.

[0018] Other preferred pesticide active ingredients (b) include insecticidal active ingredients, acaricidal active ingredients, and nematicidal active ingredients. Preferred insecticidal active ingredients, acaricidal active ingredients, and nematicidal active ingredients include, for example, clothianidin, imidacloprid, thiamethoxam, thiacloprid, flupyradifuron, flupirimine, triflumezopyrim, chlorantraniliprole, cyantraniliprole, tetraniliprole, bifenthrin, brofuranilide, isocycloceram, fluxamethamide, dinpropylidaz, fluazaindolizine, thioxazafen, abamectin, fluopyram, and cyclobutrifluram.

[0019] When the composition of the present invention contains two active ingredients, the following combinations can be mentioned, for example. In the combinations shown below, (a) means inpirfluxam: (a) + cyproconazole, (a) + difenoconazole, (a) + fenbuconazole, (a) + hexaconazole, (a) + imibenconazole, (a) + ipconazole, (a) + metconazole, (a) + myclobutanil, (a) + simeconazole, (a) + tebuconazole, (a) + prothioconazole, (a) + mefentrifluconazole, (a) + epoxiconazole, (a) + bromuconazole, (a) + Fluoxytioconazole. nazole, (a)+picoxystrobin, (a)+trifloxystrobin, (a)+fluoxastrobin, (a)+phenamidon, (a)+orysastrobin, (a)+mandestrobin, (a)+azoxystrobin, (a)+kresoxim-methyl, (a)+metominostrobin, (a)+pyraclostrobin, (a)+chlorothalonil, (a)+mancozeb, (a)+ethaboxam, and (a)+flufenoxadiazam.

[0020] When the composition of the present invention contains three active ingredients, a combination of inpirfluxam, one sterol biosynthesis inhibitor, and one mitochondrial electron transport chain complex III inhibitor is preferred, and examples thereof include the following combinations. In the combinations shown below, (a) means inpirfluxam: (a) + cyproconazole + picoxystrobin, (a) + cyproconazole + trifloxystrobin, (a) + cyproconazole + fluoxastrobin, (a) + cyproconazole + phenamide, (a) + cyproconazole + orysastrobin, (a) + cyproconazole + mandestrobin, (a) + cyproconazole + azoxystrobin, (a) + cyproconazole + kresoxim-methyl, (a) + cyproconazole + metominostrobin, (a) + cyproconazole + pyraclostrobin, (a) + cyproconazole + methyltetraprole. (a) + difenoconazole + picoxystrobin, (a) + difenoconazole + trifloxystrobin, (a) + difenoconazole + fluoxastrobin, (a) + difenoconazole + phenamide, (a) + difenoconazole + orysastrobin, (a) + difenoconazole + mandestrobin, (a) + difenoconazole + azoxystrobin, (a) + difenoconazole + kresoxim methyl, (a) + difenoconazole + metominostrobin, (a) + difenoconazole + pyraclostrobin, (a) + difenoconazole + methyltetraprole, (a) + fenbuconazole + picoxystrobin, (a) + fenbuconazole + trifloxystrobin, (a) + fenbuconazole + fluoxastrobin, (a) + fenbuconazole + phenamide, (a) + fenbuconazole + orysastrobin, (a) + fenbuconazole + mandestrobin, (a) + fenbuconazole + azoxystrobin, (a) + fenbuconazole + kresoxim-methyl, (a) + fenbuconazole + metominostrobin, (a) + fenbuconazole + pyraclostrobin, (a) + fenbuconazole + methyltetraprole,(a) + hexaconazole + picoxystrobin, (a) + hexaconazole + trifloxystrobin, (a) + hexaconazole + fluoxastrobin, (a) + hexaconazole + phenamide, (a) + hexaconazole + orysastrobin, (a) + hexaconazole + mandestrobin, (a) + hexaconazole + azoxystrobin, (a) + hexaconazole + kresoxim-methyl, (a) + hexaconazole + metominostrobin, (a) + hexaconazole + pyraclostrobin, (a) + hexaconazole + methyltetraprole, (a) + imibenconazole + picoxystrobin, (a) + imibenconazole + trifloxystrobin, (a) + imibenconazole + fluoxastrobin, (a) + imibenconazole + phenamide, (a) + imibenconazole + orysastrobin, (a) + imibenconazole + mandestrobin, (a) + imibenconazole + azoxystrobin, (a) + imibenconazole + kresoxim-methyl, (a) + imibenconazole + metominostrobin, (a) + imibenconazole + pyraclostrobin, (a) + imibenconazole + methyltetraprole, (a) + ipconazole + picoxystrobin, (a) + ipconazole + trifloxystrobin, (a) + ipconazole + fluoxastrobin, (a) + ipconazole + phenamide, (a) + ipconazole + orysastrobin, (a) + ipconazole + mandestrobin, (a) + ipconazole + azoxystrobin, (a) + ipconazole + kresoxim-methyl, (a) + ipconazole + metominostrobin, (a) + ipconazole + pyraclostrobin, (a) + ipconazole + methyltetraprole,(a) + metconazole + picoxystrobin, (a) + metconazole + trifloxystrobin, (a) + metconazole + fluoxastrobin, (a) + metconazole + phenamide, (a) + metconazole + orysastrobin, (a) + metconazole + mandestrobin, (a) + metconazole + azoxystrobin, (a) + metconazole + kresoxim methyl, (a) + metconazole + metominostrobin, (a) + metconazole + pyraclostrobin, (a) + metconazole + methyltetraprole, (a) + myclobutanil + picoxystrobin, (a) + myclobutanil + trifloxystrobin, (a) + myclobutanil + fluoxastrobin, (a) + myclobutanil + phenamide, (a) + myclobutanil + orysastrobin, (a) + myclobutanil + mandestrobin, (a) + myclobutanil + azoxystrobin, (a) + myclobutanil + kresoxim-methyl, (a) + myclobutanil + metominostrobin, (a) + myclobutanil + pyraclostrobin, (a) + myclobutanil + methyltetraprole, (a) + simeconazole + picoxystrobin, (a) + simeconazole + trifloxystrobin, (a) + simeconazole + fluoxastrobin, (a) + simeconazole + phenamide, (a) + simeconazole + orysastrobin, (a) + simeconazole + mandestrobin, (a) + simeconazole + azoxystrobin, (a) + simeconazole + kresoxim methyl, (a) + simeconazole + metominostrobin, (a) + simeconazole + pyraclostrobin, (a) + simeconazole + methyltetraprole, (a) + tebuconazole + picoxystrobin, (a) + tebuconazole + trifloxystrobin, (a) + tebuconazole + fluoxastrobin, (a) + tebuconazole + phenamide, (a) + tebuconazole + orysastrobin, (a) + tebuconazole + mandestrobin, (a) + tebuconazole + azoxystrobin, (a) + tebuconazole + kresoxim methyl, (a) + tebuconazole + metominostrobin, (a) + tebuconazole + pyraclostrobin, (a) + tebuconazole + methyltetraprole,(a) + prothioconazole + picoxystrobin, (a) + prothioconazole + trifloxystrobin, (a) + prothioconazole + fluoxastrobin, (a) + prothioconazole + phenamide, (a) + prothioconazole + orysastrobin, (a) + prothioconazole + mandestrobin, (a) + prothioconazole + azoxystrobin, (a) + prothioconazole + kresoxim methyl, (a) + prothioconazole + metominostrobin, (a) + prothioconazole + pyraclostrobin, (a) + prothioconazole + methyltetraprole, (a) + mefentrifluconazole + picoxystrobin, (a) + mefentrifluconazole + trifloxystrobin, (a) + mefentrifluconazole + fluoxastrobin, (a) + mefentrifluconazole + phenamide, (a) + mefentrifluconazole + orysastrobin, (a) + mefentrifluconazole + mandestrobin, (a) + mefentrifluconazole + azoxystrobin, (a) + mefentrifluconazole + kresoxim-methyl, (a) + mefentrifluconazole + metominostrobin, (a) + mefentrifluconazole + pyraclostrobin, (a) + mefentrifluconazole + methyltetraprole, (a) + epoxiconazole + picoxystrobin, (a) + epoxiconazole + trifloxystrobin, (a) + epoxiconazole + fluoxastrobin, (a) + epoxiconazole + phenamide, (a) + epoxiconazole + orysastrobin, (a) + epoxiconazole + mandestrobin, (a) + epoxiconazole + azoxystrobin, (a) + epoxiconazole + kresoxim methyl, (a) + epoxiconazole + metominostrobin, (a) + epoxiconazole + pyraclostrobin, (a) + epoxiconazole + methyltetraprole,(a) + bromuconazole + picoxystrobin, (a) + bromuconazole + trifloxystrobin, (a) + bromuconazole + fluoxastrobin, (a) + bromuconazole + phenamide, (a) + bromuconazole + orysastrobin, (a) + bromuconazole + mandestrobin, (a) + bromuconazole + azoxystrobin, (a) + bromuconazole + kresoxim-methyl, (a) + bromuconazole + metominostrobin, (a) + bromuconazole + pyraclostrobin, (a) + bromuconazole + methyltetraprole, (a) + Fluoxytioconazole + Picoxystrobin, (a) + Fluoxytioconazole + Trifloxystrobin, (a) + Fluoxytioconazole + Fluoxastrobin, (a) + Fluoxytioconazole + Phenamide, (a) + Fluoxytioconazole + Orysastrobin, (a) + Fluoxytioconazole + Mandestrobin, (a) + Fluoxytioconazole + Azoxystrobin, (a) + Fluoxytioconazole + Kresoxim-methyl, (a) + Fluoxytioconazole + Metominostrobin, (a) + Fluoxytioconazole + Pyraclostrobin, (a) + Fluoxytioconazole + Methyltetraprole.

[0021] The weight ratio of inpirfluxam to one pesticidal active ingredient (b) contained as active ingredients in the composition of the present invention is not particularly limited, but specific examples thereof include a ratio of "inpirfluxam: one pesticidal active ingredient (b)" that is typically in the range of 1:500 to 500:1, preferably 1:100 to 100:1, more preferably 1:10 to 10:1, even more preferably 1:5 to 5:1, and even more preferably 3:10 to 10:3. Specific examples include 1:500, 1:100, 1:90, 1:80, 1:70, 1:60, 1:50, 1:40, 1:30, 1:20, 1:19, 1:18, 1:17, 1:16, 1:15, 1:14, 1:13, 1:12, 1:11, 1:10, 1:9, 1:8, 1:7, 1:6, 1:5, 2:9, 1:4, 2:7, 3:10, 1:3, 3:8, 2:5, 3:7, 4:9, 1:2, 5:9, 4:7, 3:5, 5:8, 2:3, 7:10, 5:7, 3:4, 7:9, 4:5, 5:6, 6:7, 7:8, 8:9, 9:10, 1:1, 10:9, 9:8, 8:7, 7 :6, 6:5, 5:4, 9:7, 4:3, 7:5, 10:7, 3:2, 8:5, 5:3, 7:4, 9:5, 2:1, 9:4, 7:3, 5:2, 8:3, 3:1, 10:3, 7:2, 4:1, 9:2, 5:1, 6:1, 7:1, 8:1, 9:1, 10:1, 11:1, 12:1, 13:1, 14:1, 15:1, 16:1, 17:1, 18:1, 19:1, 20:1, 30:1, 40:1, 50:1, 60:1, 70:1, 80:1, 90:1, 100:1, 150:1, 200:1, 250:1, 300:1, 400:1, and 500:1. The above ratio can also be expressed as "approximately." "Approximately" means plus or minus 10%, for example, "approximately 1:2" is 1:1.8 to 1:2.2.

[0022] The composition of the present invention contains a lignin sulfonate (c). Examples of lignin sulfonates used in the present invention include sodium lignin sulfonate, potassium lignin sulfonate, calcium lignin sulfonate, and ammonium lignin sulfonate, with sodium lignin sulfonate being preferred. The weight-average molecular weight of the lignin sulfonate used in the present invention is typically in the range of 2,000 to 12,000. The weight-average molecular weight of the lignin sulfonate used in the present invention refers to the relative molecular weight using sodium polystyrene sulfonate as the standard substance and can be measured by gel permeation chromatography (GPC). Commercially available lignin sulfonates can be used. Such commercially available lignosulfonates include, for example, REAX 85A (sodium lignosulfonate, manufactured by Ingevity), REAX 910 (sodium lignosulfonate, manufactured by Ingevity), Polyfon F (sodium lignosulfonate, manufactured by Ingevity), and Polyfon H (sodium lignosulfonate, manufactured by Ingevity).

[0023] The content of the lignin sulfonate in the composition of the present invention is usually 0.1 to 10% by weight, preferably 0.5 to 5% by weight, more preferably 0.8 to 5% by weight, based on 100% by weight of the composition of the present invention.

[0024] The composition of the present invention contains a polyoxyalkylene aryl phenyl ether phosphate salt (d). As the polyoxyalkylene aryl phenyl ether phosphate salt, polyoxyethylene tristyryl phenyl ether phosphate salt is preferred. Commercially available polyoxyethylene tristyryl phenyl ether phosphate salts include Soprofol FL (manufactured by Solvay Nicca), Soprofol FLK (manufactured by Solvay Nicca), STEPFAC TSP PE-K (manufactured by STEPAN), and Newkalgen FS-3PG (manufactured by Takemoto Yushi Co., Ltd.).

[0025] The content of the polyoxyalkylene aryl phenyl ether phosphate ester salt in the composition of the present invention is usually 0.05 to 10% by weight, preferably 0.1 to 5% by weight, and more preferably 0.5 to 5% by weight, based on 100% by weight of the composition of the present invention.

[0026] The weight ratio of the lignin sulfonate (c) to the polyoxyalkylene aryl phenyl ether phosphate (d) in the composition of the present invention is usually 12:1 to 1:3, preferably 6:1 to 1:2, and more preferably 5:1 to 1:2.

[0027] In the composition of the present invention, the weight ratio of the total amount of impirfluxam (a) and the pesticidal active ingredient (b) to the total amount of the lignin sulfonate (c) and the polyoxyalkylene aryl phenyl ether phosphate ester salt (d) is usually 15:1 to 1:1, preferably 12:1 to 3:1, and more preferably 10:1 to 5:1.

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

[0029] The content of water in the composition of the present invention is usually 40 to 75% by weight, preferably 55 to 70% by weight, based on 100% by weight of the composition of the present invention.

[0030] The composition of the present invention may further contain one or more formulation adjuvants used in conventional aqueous suspension concentrate pesticide compositions. Examples of such formulation adjuvants include thickeners, antifreeze agents, pH adjusters, antifoaming agents, preservatives, surfactants, and colorants. When the composition of the present invention contains formulation adjuvants, the total content thereof is usually 1 to 50% by weight, preferably 1 to 20% by weight, based on 100% by weight of the composition of the present invention.

[0031] Examples of such thickeners include natural polysaccharides such as xanthan gum, welan gum, gellan gum, guar gum, locust bean gum, gum arabic, carrageenan, pectin, and sodium alginate; cellulose derivatives such as methylcellulose, carboxymethylcellulose, sodium carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, and hydroxypropylmethylcellulose; water-soluble synthetic polymers such as polyvinyl alcohol, polyvinylpyrrolidone, and polyacrylates and their derivatives; and mineral fine powders such as colloidal hydrous aluminum silicate, colloidal hydrous magnesium silicate, magnesium aluminum silicate, and silica.

[0032] Such antifreeze agents include, for example, ethylene glycol, diethylene glycol, glycerin, and propylene glycol.

[0033] Examples of such pH adjusters include citric acid monohydrate, carboxylic acids such as acetic acid and sorbic acid and salts thereof, phosphoric acid and salts thereof, and boric acid and salts thereof.

[0034] Such antifoaming agents include, for example, silicone-based antifoaming agents.

[0035] Such preservatives include, for example, butylparaben (n-butyl parahydroxybenzoate) and 1,2-benzisothiazolin-3-one.

[0036] Such surfactants include, for example, anionic surfactants and nonionic surfactants. Examples of such anionic surfactants include alkyl sulfates, polyoxyethylene alkyl ether sulfates, polyoxyethylene arylphenyl ether sulfates, naphthalene sulfonates and their formalin condensates, alkylnaphthalene sulfonates and their formalin condensates, phenylsulfonates, dialkyl sulfosuccinates, acyltaurates, alkyl phosphates, polyoxyethylene alkyl ether phosphates, and salts of styrene-maleic acid copolymers. Examples of such nonionic surfactants include polyoxyethylene polyoxypropylene block copolymers, polyoxyethylene alkyl ethers, polyoxyethylene arylphenyl ethers, sorbitan fatty acid esters, sucrose fatty acid esters, and alkyl polyglycosides.

[0037] Examples of such colorants include inorganic pigments such as iron oxide, titanium oxide, and Prussian blue; and organic pigments such as alizarin dyes, azo dyes, and metal phthalocyanine dyes.

[0038] The composition of the present invention may further contain a pesticidal active ingredient other than (a) inpirfluxam and (b) a pesticidal active ingredient having a melting point of 50°C or higher (excluding inpirfluxam). Such pesticidal active ingredients are particularly preferably biological control agents. The composition of the present invention can also be used in combination with or in combination with another formulation containing a biological control ingredient. Biological control agents refer to components that have a pesticidal effect (e.g., insecticidal, acaricidal, nematicidal, fungicidal, or herbicidal activity) or components that have a plant growth-regulating effect, such as rhizobia or mycorrhizal fungi. Examples of such biological control ingredients include Bacillus thuringiensis subsp. kurstraki strain ABTS-351, Bacillus thuringiensis subs. kurstraki strain MBP123, and Bacillus thuringiensis subs.aizawai strain ABTS-1857、Bacillus thuringiensis strain EX297512、Metarhizium anisopliae strain F52、Bacillus firmus strain l-1582、Pasteuria nishizawae strain Pn1、Bacillus amyloliquefaciens strain PTA-4838、Bacillus subutilis strain QST713、Agrobacterium radiobacter strain K84、Bacillus amyloliquefaciens strain MBI 600、Bacillus pumilus strain QST2808、Burkholderia cepacia、Gliocladium catenulatum strain J1446、Pseudomonas chlororaphis strain MA342、Pseudomonas fluorescens、Pythium oligandrum strain DV74、Streptomyces griseoviridis strain K61、Trichoderma gamsii、Trichoderma asperellum、Trichoderma harzianum strain T-22、Trichoderma virens strain GL-21、Streptomyces lydicus strain WYEC108, Bradyrhizobium japonicum strain TA-11, Sinorhizobium meliloti, Rhizobium leguminosarum, Rhizophagus intraradices strain RTI-801, Penicillium bilaiae, and Mesorhizobium ciceri are mentioned.

[0039] The composition of the present invention can be used to control pests. The pests referred to here include plant pathogenic microorganisms such as fungi, oomycetes, Phytomyxea, and bacteria, harmful arthropods such as harmful insects and harmful mites, and harmful nematodes. Examples of fungi include Ascomycota, Basidiomycota, Blasocladiomycota, Chytridiomycota, Mucoromycota, and Olpidiomycota.

[0040] Plant diseases caused by plant pathogenic microorganisms are listed below. The scientific name of the plant pathogenic microorganism that causes each disease is shown in parentheses. Rice diseases: blast (Pyricularia oryzae), brown spot (Cochliobolus miyabeanus), sheath blight (Rhizoctonia solani), bakanae disease (Gibberella fujikuroi), yellow dwarf disease (Sclerophthora macrospora), stunt and ear blight (Epicoccum nigrum), seedling damping-off (Trichoderma viride, Rhizopus oryzae); wheat diseases: powdery mildew (Blumeria graminis), head blight (Fusarium graminearum, Fusarium avenaceum, Fusarium culmorum, Microdochium nivale), yellow rust (Puccinia striiformis), black rust (Puccinia graminis), red rust (Puccinia recondita), pink snow rot (Microdochium nivale, Microdochium majus), snow rot small-grain sclerotide (Typhula incarnata, Typhula ishikariensis), bare smut (Ustilago tritici), slug smut (Tilletia caries, Tilletia controversa), eye spot disease (Pseudocercosporella herpotrichoides), leaf blight (Septoria tritici), rotten blight (Stagonospora) nodorum), yellow spot (Pyrenophora tritici-repentis), seedling damping off caused by Rhizoctonia fungi (Rhizoctonia solani), damping off (Gaeumannomyces graminis), rice blast (Pyricularia graminis-tritici);Barley diseases: powdery mildew (Blumeria graminis), head blight (Fusarium graminearum, Fusarium avenaceum, Fusarium culmorum, Microdochium nivale), yellow rust (Puccinia striiformis), black rust (Puccinia graminis), small rust (Puccinia hordei), ear bunt (Ustilago nuda), scald (Rhynchosporium secalis), net blotch (Pyrenophora teres), leaf spot (Cochliobolus sativus), leaf spot (Pyrenophora graminea), leaf spot (Ramularia collo-cygni), seedling damping-off (Rhizoctonia solani); corn diseases: rust (Puccinia sorghi), southern rust (Puccinia polysora), Setosphaeria blight (Setosphaeria turcica), tropical rust (Physopella zeae), whole-leaved leaf blight (Cochliobolus heterostrophus), anthracnose (Colletotrichum graminicola), gray leaf spot (Cercospora zeae-maydis), brown spot (Kabatiella zeae), Phaeosphaeria leaf spot (Phaeosphaeria maydis), Diplodia disease (Stenocarpella maydis, Stenocarpella macrospora), stalk rot (Fusarium graminearum, Fusarium verticilioides, Colletotrichum graminicola), smut (Ustilago maydis), Physoderma maydis; cotton diseases: anthracnose (Colletotrichum gossypii), white mold (Ramularia areola), black spot (Alternaria macrospora, Alternaria gossypii), Black root rot (Thielaviopsis basicola);Coffee diseases: rust (Hemileia vastatrix), leaf spot (Cercospora coffeicola); rapeseed diseases: sclerotinia sclerotiorum, black spot (Alternaria brassicae), root rot (Phoma lingam), light leaf spot (Pyrenopeziza brassicae); sugarcane diseases: rust (Puccinia melanocephela, Puccinia kuehnii), smut (Ustilago scitaminea); sunflower diseases: rust (Puccinia helianthi), downy mildew (Plasmopara halstedii); citrus diseases: black spot (Diaporthe citri), scab (Elsinoe fawcetti), green mold (Penicillium digitatum), blue mold (Penicillium italicum), late blight (Phytophthora parasitica, Phytophthora citrophthora), aspergillus niger; apple diseases: Monilinia mali, canker (Valsa ceratosperma), powdery mildew (Podosphaera leucotricha), leaf spot (Alternaria alternata apple pathotype), scab (Venturia inaequalis), anthracnose (Glomerella cingulata, Colletotrichum acutatum), brown spot (Diplocarpon mali), ring spot (Botryosphaeria berengeriana), late blight (Phytophtora cactorum), red scab (Gymnosporangium juniperi-virginianae, Gymnosporangium yamadae);Pear diseases: black spot (Venturia nashicola, Venturia pirina), black spot (Alternaria alternata Japanese pear pathotype), red spot (Gymnosporangium haraeanum); peach diseases: brown spot (Monilinia fructicola), black spot (Cladosporium carpophilum), phomopsis rot (Phomopsis sp.), leaf crinkle (Taphrina deformans); grape diseases: black rot (Elsinoe ampelina), late rot (Glomerella cingulata, Colletotrichum acutatum), powdery mildew (Uncinula necator), rust (Phakopsora ampelopsidis), black rot (Guignardia bidwellii), downy mildew (Plasmopara viticola); persimmon diseases: anthracnose (Gloeosporium kaki, Colletotrichum acutatum), leaf drop (Cercospora kaki, Mycosphaerella nawae); Fig diseases: rust (Phakopsora nishidana); Cucurbit diseases: anthracnose (Colletotrichum lagenarium), powdery mildew (Sphaerotheca fuliginea), vine blight (Didymella bryoniae), brown spot (Corynespora cassiicola), vine wilt (Fusarium oxysporum), downy mildew (Pseudoperonospora cubensis), late blight (Phytophthora capsici), seedling damping-off (Pythium sp.); Tomato diseases: ring spot (Alternaria solani), leaf mold (Cladosporium fulvum), leaf mold (Pseudocercospora fuligena), late blight (Phytophthora infestans), powdery mildew (Leveillula taurica); Eggplant diseases: brown spot (Phomopsis vexans), powdery mildew (Erysiphe cichoracearum);Diseases of cruciferous vegetables: black spot (Alternaria japonica), white spot (Cercosporella brassicae), clubroot (Plasmodiophora brassicae), downy mildew (Peronospora parasitica), white rust (Albugo candida); diseases of leeks: rust (Puccinia allii); diseases of soybeans: purple spot (Cercospora kikuchii), black rot (Elsinoe glycines), black spot (Diaporthe phaseolorum var. sojae), rust (Phakopsora pachyrhizi), brown ring spot (Corynespora cassiicola), anthracnose (Colletotrichum glycines, Colletotrichum truncatum), leaf rot (Rhizoctonia solani), brown spot (Septoria glycines), leaf spot (Cercospora sojina), Sclerotinia sclerotiorum, Powdery mildew (Microsphaera diffusa), Stem rot (Phytophthora sojae), Downy mildew (Peronospora manshurica), Sudden death (Fusarium virguliforme), Black root rot (Calonectria ilicicola), Diaporthe / Phomopsis complex (Diaporthe longicolla); Diseases of common beans: Sclerotinia sclerotiorum, Rust (Uromyces appendiculatus), Angular spot (Phaeoisariopsis griseola), Anthracnose (Colletotrichum lindemuthianum), Root rot (Fusarium solani); Diseases of peanuts: Black spot (Cercospora personata), Brown spot (Cercospora arachidicola), Southern blight (Sclerotium rolfsii), black root rot (Calonectria ilicicola); Pea diseases: powdery mildew (Erysiphe pisi), root rot (Fusarium solani);Potato diseases: summer blight (Alternaria solani), late blight (Phytophthora infestans), scarlet rot (Phytophthora erythroseptica), powdery scab (Spongospora subterranea f. sp. subterranea), verticillium wilt (Verticillium albo-atrum, Verticillium dahliae, Verticillium nigrescens), dry rot (Fusarium solani), canker (Synchytrium endobioticum); strawberry diseases: powdery mildew (Sphaerotheca humuli); tea diseases: net blight (Exobasidium reticulatum), white spot (Elsinoe leucospila), ring spot (Pestalotiopsis sp.), anthracnose (Colletotrichum theae-sinensis); tobacco diseases: red spot (Alternaria longipes), anthracnose (Colletotrichum tabacum), downy mildew (Peronospora tabacina), late blight (Phytophthora nicotianae); sugar beet diseases: brown spot (Cercospora beticola), leaf rot (Thanatephorus cucumeris), root rot (Thanatephorus cucumeris), black root rot (Aphanomyces cochlioides), rust (Uromyces betae); rose diseases: black spot (Diplocarpon rosae), powdery mildew (Sphaerotheca pannosa); chrysanthemum diseases: brown spot (Septoria chrysanthemi-indici), white rust (Puccinia horiana); onion diseases: white spot leaf blight (Botrytis cinerea, Botrytis byssoidea, Botrytis squamosa), gray rot (Botrytis allii), Botrytis squamosa;Diseases of various crops: gray mold (Botrytis cinerea), sclerotinia sclerotiorum, damping-off (Pythium aphanidermatum, Pythium irregulare, Pythium ultimum); diseases of radish: black spot (Alternaria brassicicola); diseases of turfgrass: dollar spot (Sclerotinia homoeocarpa), brown patch, large patch (Rhizoctonia solani), red blight (Pythium aphanidermatum); diseases of banana: Sigatoka (Mycosphaerella fijiensis, Mycosphaerella musicola); diseases of lentil: Ascochyta (Ascochyta lentis); diseases of chickpea: Ascochyta (Ascochyta rabiei); diseases of bell pepper: anthracnose (Colletotrichum scovillei); mango diseases: anthracnose (Colletotrichum acutatum); fruit tree diseases: white root rot (Rosellinia necatrix), purple root rot (Helicobasidium mompa); post-harvest fruit diseases of apples, pears, etc.: mucor rot (Mucor piriformis); seed diseases or diseases in the early stages of growth caused by species of the genera Aspergillus, Penicillium, Fusarium, Gibberella, Tricoderma, Thielaviopsis, Rhizopus, Mucor, Corticium, Phoma, Rhizoctonia, Diplodia, etc.; viral diseases: big vein disease of lettuce transmitted by Olpidium brassicae, viral diseases of various crops transmitted by species of the Polymyxa genus (e.g., Polymyxa betae and Polymyxa graminis);Diseases caused by bacteria include rice seedling blight (Burkholderia plantarii), cucumber spot (Pseudomonas syringae pv. lachrymans), eggplant bacterial wilt (Ralstonia solanacearum), citrus canker (Xanthomonas citri), Chinese cabbage soft rot (Erwinia carotovora), potato scab (Streptomyces scabiei), corn Goss's wilt (Clavibacter michiganensis), Pierce's disease (Xylella fastidiosa) of grapes, olives, peaches, etc., and crown gall disease (Agrobacterium tumefaciens) of Rosaceae plants such as apples, peaches, and cherries. There are no particular limitations on intraspecific mutations of the above plant pathogenic microorganisms. In other words, they also include those with reduced sensitivity (also known as resistance) to certain fungicides. The reduced sensitivity may be due to a mutation at the target site (active point mutation) or due to factors other than active point mutations (non-active point mutations).

[0041] The composition of the present invention can protect plants from the above-mentioned pests by applying it to plants or their cultivation areas. Examples of cultivation areas include paddy fields, upland fields, orchards, lawns, non-crop land, etc. Plants for which the composition of the present invention can be used include corn (horse-tooth, hard-grain, soft-grain, bursting, glutinous, sweet, field corn), rice (long-grain, short-grain, medium-grain, japonica, tropical japonica, indica, javanica, paddy rice, upland rice, floating rice, direct-seeded rice, transplanted rice, glutinous rice), wheat (bread wheat (hard, soft, medium, red wheat, white wheat), durum wheat, spelt wheat, club wheat, each winter wheat type, spring wheat type), barley (two-rowed barley (= beer barley), six-rowed barley, Naked barley, waxy barley, and their respective winter and spring barley types), rye (winter rye and spring rye types), triticale (winter triticale and spring triticale types), oats (winter oat and spring oat types), sorghum, cotton (Upland and Pima varieties), soybeans (fully harvested varieties, edamame varieties, green-harvested varieties, indeterminate, determinate and semi-determinate types), peanuts, buckwheat, sugar beet (sugar, feed, root vegetable, leafy vegetable, fuel), rapeseed (winter rapeseed and spring rapeseed types), canola (winter canola and spring rapeseed types), La type, spring canola type), sunflowers (for oil extraction, food, ornamental), sugarcane, tobacco, tea plants, mulberry, Solanaceae vegetables (eggplant, tomato, bell pepper, chili pepper, potato, etc.), Cucurbitaceae vegetables (cucumber, pumpkin, zucchini, watermelon, melon, etc.), Brassicaceae vegetables (radish, turnip, horseradish, kohlrabi, Chinese cabbage, cabbage, mustard greens, broccoli, cauliflower, etc.), Asteraceae vegetables (burdock, garland chrysanthemum, artichoke, lettuce, etc.), Liliaceae vegetables (leeks, onions, garlic, asparagus) etc.), Umbelliferae vegetables (carrots, parsley, celery, parsley, etc.), Chenopodiaceae vegetables (spinach, chard, etc.), Lamiaceae vegetables (shiso, mint, basil, etc.), strawberries, sweet potatoes, yams, taro, pome fruits (apples, European pears, Japanese pears, Chinese pears, quince, quince, etc.), stone fruits (peaches, plums, nectarines, plums, cherry blossoms, apricots, prunes, etc.), citrus fruits (Satsuma mandarins, oranges, lemons, limes, grapefruits, etc.), nuts (chestnuts, walnuts, hazelnuts,Examples of the plants include almonds, pistachios, cashews, macadamia nuts, etc.), berries (blueberries, cranberries, blackberries, raspberries, etc.), grapes, persimmons, figs, olives, loquats, bananas, coffee, dates, coconuts, ornamental plants, forest plants, turfgrass, and pasture plants. There are no particular limitations on the plants listed above, as long as they are commonly cultivated varieties. The plants listed above also include plants that can be produced by natural crossbreeding, plants that can be generated by mutation, F1 hybrid plants, and genetically modified plants.

[0042] The composition of the present invention can be applied to plants or their cultivation areas using known techniques, such as foliar spray treatment, seed treatment, and soil treatment. Seed treatment refers to treatment of seeds or vegetative reproductive organs. Vegetative reproductive organs refer to plant roots, stems, leaves, and other parts that can grow when separated from the plant body and placed in soil. Examples include tuberous roots, creeping roots, bulbs, corms (or solid bulbs), tubers, rhizomes, stolons, rhizophores, cane cuttings, propagules, and vine cuttings. Examples of equipment used for application include hand-cranked sprayers, power sprayers, pancras sprayers, manned aircraft (e.g., manned helicopters), and unmanned aircraft (e.g., radio-controlled helicopters and drones). Application can also be performed using a tractor, planter, or the like at the time of sowing or several days before or after sowing. The composition of the present invention may be used as it is, or may be diluted with water to use a diluted solution.

[0043] The composition of the present invention can be produced, for example, by a method in which inpilfluxam, the pesticidal active ingredient (b), lignin sulfonate, and polyoxyalkylene aryl phenyl ether phosphate ester salt, as well as formulation adjuvants, are added to water, followed by thorough stirring and mixing with a high-speed stirrer, and then finely pulverizing with a wet grinder such as a bead mill; or by a method in which inpilfluxam and the pesticidal active ingredient (b) are finely pulverized with a dry grinder such as a jet mill, and then the finely pulverized inpilfluxam, the pesticidal active ingredient (b), lignin sulfonate, and polyoxyalkylene aryl phenyl ether phosphate ester salt, as well as formulation adjuvants, as needed, are added to water, and then thorough stirring and mixing with a high-speed stirrer.

[0044] In the composition of the present invention, the pesticidal active ingredient is dispersed in water in the form of fine particles, the particle size of which is typically 10 μm or less, preferably 0.1 to 10 μm, and more preferably 0.2 to 7 μm. Specific particle sizes include, for example, 1.0 μm, 1.5 μm, 1.8 μm, 2.0 μm, 2.5 μm, 3.0 μm, 3.5 μm, and 4.0 μm. In the present invention, particle size refers to the volume median diameter. The volume median diameter refers to the particle size at which the cumulative frequency in a volume-based frequency distribution is 50%, and can be determined by wet measurement using a laser diffraction particle size analyzer. More specifically, the object to be measured is dispersed in water and measured using the analyzer. A Mastersizer 3000 manufactured by Malvern Instruments is used as such a laser diffraction particle size analyzer.

[0045] The present invention will be described in more detail below with reference to examples, but is not limited to these examples. First, examples of production of aqueous suspension pesticidal compositions and comparative production examples will be shown.

[0046] Production Example 1 5.6 parts by weight of inpirfluxam, 18.7 parts by weight of tebuconazole, 3.7 parts by weight of sodium lignosulfonate (Reax 85A, manufactured by Ingevity), 1.9 parts by weight of a mixture of 40% by weight of polyoxyethylene tristyrylphenyl ether phosphate potassium salt and 60% by weight of propylene glycol (Soprofol FLK, manufactured by Solvay Nicca), 0.1 part by weight of a silicone-based antifoaming agent (Xiameter ACP-1500 Antifoam compound, manufactured by Dow Corning Toray Co., Ltd.), and 26.0 parts by weight of ion-exchanged water were mixed to obtain a mixture (i). The mixture (i) was wet-pulverized using a horizontal bead mill (DYNO-MILL KDL, manufactured by Willy A. Bachofen AG Maschinenfabrik) to obtain a suspension. Meanwhile, 0.2 parts by weight of xanthan gum (Kelzan S plus, manufactured by CP Kelco), 0.4 parts by weight of magnesium aluminum silicate (Veegum R, manufactured by Vanderbilt), 3.0 parts by weight of propylene glycol, and 0.2 parts by weight of a preservative (Proxel GXL, manufactured by Lonza, containing 1,2-benzisothiazolin-3-one as an active ingredient) were added to 21.2 parts by weight of ion-exchanged water, and the mixture was stirred for 2 hours to obtain a mixture (ii). Mixture (ii) was added to the previously obtained suspension and mixed, followed by the addition of 0.1 parts by weight of a silicone antifoaming agent (Xiameter ACP-1500 Antifoam compound, manufactured by Dow Corning Toray Co., Ltd.) and 19.0 parts by weight of ion-exchanged water to obtain an aqueous suspension pesticidal composition of the present invention (hereinafter referred to as composition (1) of the present invention). The volume median diameter of the fine particles of inpirfluxam and tebuconazole contained in composition (1) of the present invention was 2.0 μm.

[0047] Production Example 2: The same procedure as in Production Example 1 was repeated, except that 2.8 parts by weight of sodium lignosulfonate (Reax 85A, manufactured by Ingevity) was used, and 2.8 parts by weight of a mixture of 40% by weight of polyoxyethylene tristyrylphenyl ether phosphate potassium salt and 60% by weight of propylene glycol (Soprofol FLK, manufactured by Solvay Nicca) was used, to obtain an aqueous suspension concentrate pesticidal composition of the present invention (hereinafter referred to as "Composition (2) of the present invention"). The volume median diameter of the fine particles of inpirfluxam and tebuconazole contained in Composition (2) of the present invention was 1.8 μm.

[0048] Production Example 3: The same procedure as in Production Example 1 was repeated, except that 1.9 parts by weight of sodium lignosulfonate (Reax 85A, manufactured by Ingevity) was used, and 3.7 parts by weight of a mixture of 40% by weight of polyoxyethylene tristyrylphenyl ether phosphate potassium salt and 60% by weight of propylene glycol (Soprofol FLK, manufactured by Solvay Nicca) was used, to obtain an aqueous suspension concentrate pesticidal composition of the present invention (hereinafter referred to as "Composition (3) of the present invention"). The volume median diameter of the fine particles of inpirfluxam and tebuconazole contained in Composition (3) of the present invention was 1.8 μm.

[0049] Production Example 4 The same procedure as in Production Example 1 was repeated, except that 0.9 parts by weight of sodium lignosulfonate (Reax 85A, manufactured by Ingevity) was used, and 4.7 parts by weight of a mixture of 40% by weight of polyoxyethylene tristyrylphenyl ether phosphate potassium salt and 60% by weight of propylene glycol (Soprofol FLK, manufactured by Solvay Nicca) was used, to obtain an aqueous suspension concentrate pesticidal composition of the present invention (hereinafter referred to as "Composition (4) of the present invention"). The volume median diameter of the fine particles of inpirfluxam and tebuconazole contained in Composition (4) of the present invention was 1.8 μm.

[0050] Comparative Production Example 1: 5.6 parts by weight of inpirfluxam, 18.7 parts by weight of tebuconazole, 5.6 parts by weight of sodium lignosulfonate (Reax 85A, manufactured by Ingevity), 0.1 parts by weight of a silicone antifoaming agent (Xiameter ACP-1500 Antifoam compound, manufactured by Dow Corning Toray Co., Ltd.), and 26.0 parts by weight of ion-exchanged water were mixed to obtain a mixture (A-i). The mixture (A-i) was wet-pulverized using a horizontal bead mill (DYNO-MILL KDL, manufactured by WILLY A. BACHOFEN AG Maschinenfabrik) to obtain a suspension. Separately, 0.2 parts by weight of xanthan gum (Kelzan S plus, manufactured by CP Kelco), 0.4 parts by weight of aluminum magnesium silicate (Veegum R, manufactured by Vanderbilt), 3.0 parts by weight of propylene glycol, and 0.2 parts by weight of a preservative (Proxel GXL, manufactured by Lonza, containing 1,2-benzisothiazolin-3-one as an active ingredient) were added to 21.2 parts by weight of ion-exchanged water, and the mixture was continuously stirred for 2 hours to obtain a mixture (A-ii). The mixture (A-ii) was added to the previously obtained suspension and mixed, and 0.1 parts by weight of a silicone antifoaming agent (Xiameter ACP-1500 Antifoam compound, manufactured by Dow Corning Toray Co., Ltd.) and 19.0 parts by weight of ion-exchanged water were added to obtain a comparative aqueous suspension pesticide composition (hereinafter referred to as comparative composition (1)). The volume median diameter of the fine particles of inpirfluxam and tebuconazole contained in comparative composition (1) was 1.9 μm.

[0051] Comparative Production Example 2: 5.6 parts by weight of inpirfluxam, 18.7 parts by weight of tebuconazole, 5.6 parts by weight of a mixture of 40% by weight of polyoxyethylene tristyrylphenyl ether phosphate ester potassium salt and 60% by weight of propylene glycol (Soprofol FLK, manufactured by Solvay Nicca), 0.1 parts by weight of a silicone antifoaming agent (Xiameter ACP-1500 Antifoam compound, manufactured by Dow Corning Toray Co., Ltd.), and 26.0 parts by weight of ion-exchanged water were mixed to obtain a mixture (Bi). The mixture (Bi) was wet-pulverized using a horizontal bead mill (DYNO-MILL KDL, manufactured by Willy A. Bachofen AG Maschinenfabrik) to obtain a suspension. Separately, 0.2 parts by weight of xanthan gum (Kelzan S plus, manufactured by CP Kelco), 0.4 parts by weight of aluminum magnesium silicate (Veegum R, manufactured by Vanderbilt), 3.0 parts by weight of propylene glycol, and 0.2 parts by weight of a preservative (Proxel GXL, manufactured by Lonza, containing 1,2-benzisothiazolin-3-one as an active ingredient) were added to 21.2 parts by weight of ion-exchanged water, and stirring was continued for 2 hours to obtain a mixture (B-ii). The mixture (B-ii) was added to the previously obtained suspension and mixed, and 0.1 parts by weight of a silicone antifoaming agent (Xiameter ACP-1500 Antifoam compound, manufactured by Dow Corning Toray Co., Ltd.) and 19.0 parts by weight of ion-exchanged water were added to obtain a comparative aqueous suspension pesticide composition (hereinafter referred to as comparative composition (2)). The volume median diameter of the fine particles of inpirfluxam and tebuconazole contained in comparative composition (2) was 1.9 μm.

[0052] Next, test examples will be shown to examine the storage stability of the pesticidal aqueous suspension concentrate of the present invention.

[0053] Test Example 1 The foaming properties of the aqueous suspension pesticide compositions obtained in Production Examples 1 to 4 and Comparative Production Examples 1 and 2 were measured. The foaming property measurement procedure was as follows. 0.5 ml of the aqueous suspension pesticide composition was added to a 250 ml stoppered measuring cylinder containing 195.5 ml of standard water H specified by the International Council on Pesticide Analysis (CIPAC), and the measuring cylinder was then stoppered. The measuring cylinder was inverted 180° in one second and then returned to its original position in one second, and this cycle was repeated 30 times. After leaving the cylinder to stand for one minute, the volume of bubbles present on the liquid surface was measured. The results are shown in Table 1. As shown in Table 1, it was found that all of the compositions (1) to (4) of the present invention suppressed foam generation during the preparation of the spray solution.

[0054]

[0055] Test Example 2 The aqueous suspension pesticidal compositions obtained in Preparation Examples 1 to 4 and Comparative Preparation Examples 1 and 2 were placed in 50 ml glass bottles, sealed, and stored in an incubator set at 54°C for two weeks. A 10 g aliquot of the aqueous suspension pesticidal composition stored in the incubator for the specified period was then diluted with tap water and passed through a 45 μm mesh sieve. The residue remaining on the sieve was transferred to a glass petri dish by flushing with ion-exchanged water and dried in an oven at 60°C. The weight ratio (%) of the residue to the weight (10 g) of the aqueous suspension pesticidal composition used was calculated using the following formula. The results are shown in Table 2. Sieve residue (%) = (residue weight (g) / 10 (g)) × 100. A high sieve residue (%) indicates the presence of large particles in the measured sample. As shown in Table 2, all of the compositions (1) to (4) of the present invention suppressed the generation of large particles even after high-temperature storage, demonstrating excellent storage stability.

[0056]

[0057] According to the present invention, it is possible to provide an aqueous suspension pesticidal composition in which crystal growth during storage and bubble generation during preparation of a spray solution are both suppressed.

Claims

1. An aqueous suspension pesticide composition comprising (a) inpirfluxam, (b) one or more pesticidal active ingredients (excluding inpirfluxam) having a melting point of 50°C or higher, (c) a lignin sulfonate, and (d) a polyoxyalkylene aryl phenyl ether phosphate ester salt.

2. 2. The aqueous suspension concentrate pesticidal composition according to claim 1, wherein (b) the pesticidal active ingredient having a melting point of 50°C or higher is at least one selected from the group consisting of a fungicidal active ingredient, an insecticidal active ingredient, an acaricidal active ingredient, and a nematicidal active ingredient.

3. 2. The pesticidal aqueous suspension concentrate according to claim 1, wherein (b) the pesticidal active ingredient having a melting point of 50°C or higher comprises a fungicidal active ingredient.

4. 2. The aqueous suspension concentrate pesticidal composition according to claim 1, wherein (b) the pesticidal active ingredient having a melting point of 50°C or higher comprises one or more selected from the group consisting of a sterol biosynthesis inhibitor and a mitochondrial electron transport chain complex III inhibitor.

5. 2. The pesticidal aqueous suspension concentrate according to claim 1, comprising two pesticidal active ingredients (b) having a melting point of 50° C. or higher.

6. 6. The aqueous suspension concentrate pesticidal composition according to claim 5, wherein the two types of (b) pesticidal active ingredients having a melting point of 50°C or higher are a sterol biosynthesis inhibitor and a mitochondrial electron transport chain complex III inhibitor.

7. 2. The pesticidal aqueous suspension concentrate according to claim 1, wherein the weight ratio of (c) the lignin sulfonate to (d) the polyoxyalkylene aryl phenyl ether phosphate ester salt is from 6:1 to 1:

2.

8. 2. The pesticidal aqueous suspension concentrate according to claim 1, wherein the weight ratio of the total amount of (a) impirfluxam and (b) the pesticidal active ingredient having a melting point of 50°C or higher to the total amount of (c) the lignin sulfonate and (d) the polyoxyalkylene aryl phenyl ether phosphate ester salt is from 15:1 to 1:

1.

9. The pesticidal composition according to any one of claims 1 to 8, further comprising: (a) impirfluxam; and (b) a pesticidal active ingredient other than the pesticidal active ingredient having a melting point of 50°C or higher.

10. 10. The aqueous suspension concentrate pesticidal composition according to claim 9, wherein (a) inpirfluxam and (b) a pesticidal active ingredient other than a pesticidal active ingredient having a melting point of 50°C or higher are a biological pesticide active ingredient.

11. A method for improving the storage stability of an aqueous suspension pesticide composition, comprising the step of adding (c) a lignin sulfonate and (d) a polyoxyalkylene aryl phenyl ether phosphate ester salt to a composition containing (a) inpirfluxam and (b) one or more pesticidal active ingredients (excluding inpirfluxam) having a melting point of 50°C or higher.