Liquid agrochemical composition containing surfactant such as lignosulfonate

Abstract

The present invention provides a liquid agrochemical composition comprising: an agrochemical active compound; at least one surfactant selected from the group consisting of lignosulfonate, alkyl naphthalene sulfonate formalin condensate and naphthalene sulfonate formalin condensate; 1,2-benzoisothiazolin-3-one; water; and 0.20-10 wt % sulfite; wherein the pH of said composition is 7.0-14.0.

Description

Liquid pesticide composition containing surfactant such as lignosulfonate

[0001] The present invention relates to a liquid pesticide composition which contains a pesticidal active compound, a specific surfactant such as lignosulfonate, 1,2-benzisothiazolin-3-one, water, and at least one inorganic salt selected from the group consisting of sulfites and triphosphates, and which has a pH of 7.0 to 14.0, and in which decomposition of 1,2-benzisothiazolin-3-one is inhibited.

[0002] Conventionally, liquid pesticide compositions have been known that are inhibited from particle growth or precipitation, or gelation, and have physicochemical storage stability (see Patent Documents 1 and 2).

[0003] Special table No. 2021-518371 Special table No. 2021-525258

[0004] The present inventors have found that in a basic liquid pesticide composition containing a pesticidal active compound, a specific surfactant such as lignin sulfonate, 1,2-benzisothiazolin-3-one, and water, there is a problem in that the 1,2-benzisothiazolin-3-one decomposes over time.

[0005] The present inventors have conducted extensive research in light of the above circumstances and have found that in a liquid pesticide composition containing a) a pesticidal active compound, b) at least one surfactant selected from the group consisting of ligninsulfonate, alkylnaphthalenesulfonate-formalin condensate, and naphthalenesulfonate-formalin condensate, c) 1,2-benzisothiazolin-3-one, d) water, and e) at least one inorganic salt selected from the group consisting of sulfite and triphosphate, the decomposition of the 1,2-benzisothiazolin-3-one can be inhibited by adjusting the content of the inorganic salt to 0.20 to 10% by weight and adjusting the pH of the liquid pesticide composition to 7.0 to 14.0, thereby completing the present invention.

[0006] That is, the present invention may have the following configuration aspects, but is not limited to these. [1] A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensate, and naphthalenesulfonate-formalin condensate; 1,2-benzisothiazolin-3-one; water; and at least one inorganic salt selected from the group consisting of sulfite and triphosphate, wherein the content of the inorganic salt is 0.20 to 10% by weight, and the pH is 7.0 to 14.0. [2] The liquid pesticide composition according to [1], wherein the pH is 8.0 to 12.0. [3] The liquid pesticide composition according to [1] or [2], wherein the content of the inorganic salt is 0.50 to 5% by weight. [4] The liquid pesticide composition according to any one of [1] to [3], wherein the inorganic salt is sodium sulfite or potassium sulfite. [5] The liquid pesticide composition according to any one of [1] to [3], wherein the inorganic salt is trisodium phosphate or tripotassium phosphate. [6] The liquid pesticide composition according to any one of [1] to [5], wherein the surfactant is lignin sulfonate. [7] The liquid pesticide composition according to any one of [1] to [6], wherein the pesticidal active compound is solid at 25°C. [8] The liquid pesticide composition according to any one of [1] to [7], wherein the water solubility of the pesticidal active compound at 20°C is 350 mg / L or less. [9] The liquid pesticide composition according to any one of [1] to [8], wherein decomposition of 1,2-benzisothiazolin-3-one is inhibited.

[10] A method for inhibiting decomposition of 1,2-benzisothiazolin-3-one in a liquid pesticide composition containing: a pesticidal active compound; at least one surfactant selected from the group consisting of ligninsulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and at least one inorganic salt selected from the group consisting of sulfites and triphosphates, wherein the content of the inorganic salt is 0.20 to 10 wt % and the pH of the liquid pesticide composition is 7.0 to 14.0.

[11] The method according to

[10] , wherein the pH is 8.0 to 12.0.

[12] The method according to

[10] or

[11] , wherein the content of the inorganic salt is 0.50 to 5 wt %.

[13] A method for producing a liquid pesticide composition, comprising a step of mixing a) a pesticidal active compound, b) at least one surfactant selected from the group consisting of ligninsulfonate, alkylnaphthalenesulfonate-formalin condensate, and naphthalenesulfonate-formalin condensate, c) 1,2-benzisothiazolin-3-one, d) water, and e) at least one inorganic salt selected from the group consisting of sulfite and triphosphate, wherein the pH of the liquid pesticide composition is 7.0 to 14.0, and the content of the inorganic salt is 0.20 to 10 wt %.

[14] The method according to

[13] , wherein decomposition of the 1,2-benzisothiazolin-3-one in the liquid pesticide composition is suppressed.

[15] Use of an inorganic salt in a liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of ligninsulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and at least one inorganic salt selected from the group consisting of sulfites and triphosphates, for inhibiting decomposition of 1,2-benzisothiazolin-3-one, wherein the pH of the liquid pesticide composition is 7.0 to 14.0, and the content of the inorganic salt is 0.20 to 10% by weight.

[16] The use according to

[15] , wherein the pH is 7.0 to 12.0, preferably 8.0 to 12.0.

[17] The use according to

[15] or

[16] , wherein the content of the inorganic salt is 0.20 to 10 wt %, preferably 0.5 to 10 wt %, more preferably 0.5 to 5 wt %, and even more preferably 1 to 4 wt %.

[0007] According to the present invention, it is possible to inhibit decomposition of 1,2-benzisothiazolin-3-one in a liquid pesticide composition containing: a) a pesticidal active compound; b) at least one surfactant selected from the group consisting of ligninsulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; c) 1,2-benzisothiazolin-3-one; d) water; and e) at least one inorganic salt selected from the group consisting of sulfites and triphosphates.

[0008] The following describes in detail the embodiments of the present invention. Note that the present invention is not limited to the following embodiments. Furthermore, the present invention also encompasses any combination of one or more of the embodiments described herein.

[0009] (Liquid Pesticide Composition) The liquid pesticide composition of the present invention (hereinafter referred to as the present liquid pesticide composition) contains a pesticidal active compound, at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates, 1,2-benzisothiazolin-3-one, water, and at least one inorganic salt selected from the group consisting of sulfites and triphosphates.

[0010] The liquid pesticide composition contains one or more pesticidal active compounds. The pesticidal active compound is, for example, solid or liquid at 25°C. The water solubility of the pesticidal active compound at 20°C is typically 0.001 mg / L or more, and may be 0.01 mg / L or more, 0.1 mg / L or more, 1.0 mg / L or more, 10 mg / L or more, 25 mg / L or more, or even 100 mg / L or more. The water solubility of the pesticidal active compound at 20°C is typically 1000 mg / L or less, and may be 500 mg / L or less, 350 mg / L or less, or 100 mg / L or less. The water solubility of the pesticidal active compound at 20°C is usually 0.01 mg / L to 1000 mg / L, and may be 0.1 mg / L to 100 mg / L, 1 mg / L to 350 mg / L, 10 mg / L to 350 mg / L, 25 mg / L to 350 mg / L, or 25 mg / L to 1000 mg / L or less. In the liquid pesticidal composition, the pesticidal active compound may be dispersed in water in a solid state. In the liquid pesticidal composition, the pesticidal active compound may be dispersed in water in the form of oil droplets. The liquid pesticidal composition may contain a pesticidal active compound dispersed in a solid state and a pesticidal active compound dispersed in the form of oil droplets. In the liquid pesticidal composition, all of the two or more pesticidal active compounds may be dispersed in water in a solid state.

[0011] The agriculturally active compound is not particularly limited, but examples thereof include insecticidal active compounds, fungicidal active compounds, and herbicidal active compounds.

[0012] Examples of insecticidal compounds include abamectin, acrinathrin, alpha-cypermethrin, bifenthrin, buprofezin, chlorantraniliprole, chlorpyrifos, chlorpyrifos-methyl, chromafenozide, clothianidin, cyantraniliprole, cypermethrin, deltamethrin, diflubenzuron, esfenvalerate, etofenprox, and etoxazole. xazole, fenoxycarb, flubendiamide, gamma-cyhalothrin, indoxacarb, lambda-cyhalothrin, lufenuron, methoxyfenozide, oxazosulfyl, pirimiphos-methyl, pyridaben, pyriproxyfen, spirodiclofen, spiromesifen, tebufenozide, teflubenzuron, tefluthrin, and triflumuron.

[0013] Examples of fungicidal compounds include ametoctradin, amisulbrom, azoxystrobin, benthivalicarb-isopropyl, benzovindiflupyr, bixafen, Bordeaux mixture, boscalid, bupirimate, captan, chlorothalonil, copper oxychloride, and copper(II) sulfate. sulfate), cyazofamid, cyflufenamid, cyprodinil, diethofencarb, difenoconazole, dimoxystrobin, dithianon, epoxiconazole, famoxadone, fenbuconazole, fenpicoxamid, florylpicoxamid, fludioxonil, fluindapyr, fluopicolide fluopicolide), fluoxastrobin (fluoxastrobin), fluquinconazole (fluquinconazole), flutolanil (flutolanil), fluxapyroxad (fluxapyroxad), folpet (folpet), folpel (folpel), ipconazole (ipconazole), isofetamide (isofetamid), isoflecipram (isoflucypram), kresoxim-methyl (kresoxim-methyl), mancozeb (mancozeb), mandipropamid (mandipropamid), mefentrifluconazole (mefentrifluconazole), mepanipyrim (mepanipyrim), metiram (metiram),Metrafenone, methyltetraprole, oxathiapiprolin, pencycuron, penflufen, penthiopyrad, picoxystrobin, proquinazid, pydiflumetofen, pyraclostrobin, pyrapropoyne, pyridaclomethyl, pyriophenone, quinoxyfen, sedaxane, sulfur, tolclofos-methyl, trifloxystrobin, triflumizole, triticonazole, ziram, zoxamide.

[0014] Examples of herbicidally active compounds include aclonifen, amidosulfuron, beflubutamid, benfluralin, bifenox, desmedipham, diflufenican, flumioxazin, flurtamone, halosulfuron-methyl, isoxaben, isoxaflutole, lenacil, mesosulfuron-methyl, oryzalin, and o- Oxadiazon, oxyfluorfen, pendimethalin, penoxsulam, phenmedipham, picolinafen, propaquizafop, propyzamide, pyraflufen-ethyl, pyridate, terbuthylazine, tralkoxydim, tri-allate, triflusulfuron-methyl, ethyl 2-[(3-{2-chloro-4-fluoro-5-[3-methyl-4-(trifluoromethyl)-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-1(2H)-yl]phenoxy}pyridin-2-yl)oxy]acetate.

[0015] The content of the pesticidal active compound in the present liquid pesticidal composition is, for example, 0.1 to 50% by weight, or may be 1 to 45% by weight, or may be 10 to 40% by weight, relative to 100% by weight of the present liquid pesticidal composition.

[0016] The present liquid pesticide composition contains at least one surfactant (hereinafter referred to as the present surfactant) selected from the group consisting of lignin sulfonate, alkyl naphthalene sulfonate-formalin condensate, and naphthalene sulfonate-formalin condensate. The present surfactant may be lignin sulfonate or alkyl naphthalene sulfonate-formalin condensate, or a combination of lignin sulfonate and alkyl naphthalene sulfonate-formalin condensate. The present surfactant is preferably lignin sulfonate. Examples of lignin sulfonate include sodium lignin sulfonate, potassium lignin sulfonate, calcium lignin sulfonate, and magnesium lignin sulfonate, with sodium lignin sulfonate being preferred. The weight-average molecular weight of the lignin sulfonate is typically 4,000 to 24,000, but may also be 4,000 to 14,000, or 6,000 to 12,000. Examples of alkylnaphthalenesulfonate-formalin condensates include formalin condensates of monoalkylnaphthalenesulfonates or dialkylnaphthalenesulfonates, and examples thereof include methylnaphthalenesulfonate-formalin condensates, ethylnaphthalenesulfonate-formalin condensates, propylnaphthalenesulfonate-formalin condensates, isopropylnaphthalenesulfonate-formalin condensates, butylnaphthalenesulfonate-formalin condensates, isobutylnaphthalenesulfonate-formalin condensates, dimethylnaphthalenesulfonate-formalin condensates, diethylnaphthalenesulfonate-formalin condensates, diisopropylnaphthalenesulfonate-formalin condensates, dibutylnaphthalenesulfonate-formalin condensates, and diisobutylnaphthalenesulfonate-formalin condensates. Examples of alkylnaphthalenesulfonate formalin condensates include potassium alkylnaphthalenesulfonate formalin condensates, sodium alkylnaphthalenesulfonate formalin condensates, lithium alkylnaphthalenesulfonate formalin condensates, and calcium alkylnaphthalenesulfonate formalin condensates, with sodium alkylnaphthalenesulfonate formalin condensates being preferred.

[0017] In the present liquid pesticide composition, the content of the present surfactant is usually 0.1 to 8% by weight, or may be 0.5 to 7% by weight, 1 to 6% by weight, 1 to 5% by weight, 1 to 4% by weight, or 1 to 3% by weight, relative to 100% by weight of the present liquid pesticide composition.

[0018] The liquid pesticide composition may contain, in addition to the present surfactant, one or more surfactants other than the present surfactant. The surfactant other than the present surfactant may be an anionic surfactant, a cationic surfactant, or a nonionic surfactant.

[0019] Examples of the anionic surfactants include sulfonates, sulfate ester salts, phosphate ester salts, carboxylate salts, and mixtures thereof. Examples of the sulfonates include alkyl sulfonates (e.g., dodecyl sulfonate), alpha olefin sulfonates (e.g., alkyl benzene sulfonates (e.g., decyl benzene sulfonate, dodecyl benzene sulfonate, tridecyl benzene sulfonate)), diphenyl sulfonate, naphthalene sulfonate, alkyl naphthalene sulfonate, and others, such as alkyl phenol sulfonates and derivatives thereof, benzimidazole sulfonic acid derivatives, and tristyrylphenol phosphate. Examples of the sulfate ester salts include alkyl sulfates (e.g., n-hexyl sulfate), n-heptyl sulfate, lauryl sulfate, lauryl sulfate diethanolate, octadecyl sulfate, polyoxyethylene alkyl ether sulfates (e.g., laureth-3 sulfate), and polyoxypropylene alkyl ether sulfates. Examples of the phosphate salts include alkyl phosphates such as lauryl phosphate and derivatives thereof, polyoxyethylene alkyl ether phosphates and derivatives thereof, polyoxyethylene alkylphenyl ether phosphates and derivatives thereof, and polyoxypropylene alkyl ether phosphates and derivatives thereof. Examples of the carboxylate salts include fatty acid salts such as octanoate, decanoate, laurate, myristate, palmitate, stearate, behenate, and oleate and derivatives thereof, ether carboxylates such as laureth-3-carboxylate and derivatives thereof, N-acyl sarcosine salts such as N-lauroyl sarcosine salt and derivatives thereof, N-acyl glutamate salts such as N-lauroyl glutamate and derivatives thereof, and polycarboxylates and derivatives thereof such as polyacrylates, polyvinyl acetates, and comb polymers of polyacid salts.

[0020] Examples of the cationic surfactant include alkylamine salts such as monomethylamine salts, dimethylamine salts, and trimethylamine salts; fatty acid amidoamine salts such as stearamidopropyldimethylamine and behenamidopropyldimethylamine; polyamine salts such as polyvinylamine and polyethyleneimine; and quaternary ammonium salts such as lauryltrimethylammonium salts, cetyltrimethylammonium salts, stearylmethylammonium salts, and benzylbis(2-chloroethyl)ethyl bromide ammonium salts.

[0021] Examples of the nonionic surfactant include alkylphenols (e.g., octylphenol, nonylphenol, octylcresol, etc.), allylphenol, acylphenol, isotridecyl alcohol, oleyl alcohol, cetyl alcohol, starch, starch derivatives, sucrose, alkyl polyglucosides, sorbitan, ethoxylated sorbitan, cellulose derivatives, gum arabic, polyvinyl alcohol, polyethylene glycol, fatty acid alkanolamides (e.g., lauric acid diethanolamide), alkoxylated propylene oxide fatty acid glucamides, polyoxyethylene oleic acid amide, polyoxyethylene stearic acid amide, polyvinylpyrrolidone, polyoxyethylene oleylamine, alkoxylated amines (e.g., polyoxyethylene oleylamine), α,α'-[(9-octadecenylimino)di-2,1-ethanedyl]bis(ω-hydroxy)poly(oxyethylene), fatty acid esters of polyols, monoglycerides, phospholipids, sucrose stearate diesters, sorbitan fatty acid esters (e.g., sorbitan oleate monoester), glucose esters, cellulose esters, vinyl acetate copolymers, polymethacrylic acid, copolymers of methacrylic acid and methacrylic acid esters, fatty alcohol ethoxylates (e.g., tridecyl alcohol ethoxylate, isooctyl alcohol ethoxylate, lauryl alcohol ethoxylate, hexadecyl alcohol ethoxylate, stearyl alcohol ethoxylate), alkylphenol ethoxylates (e.g., nonylphenol ethoxylate, tributylphenol ethoxylate, octylphenol ethoxylate), tristyrylphenol ethoxylate, arylalkylphenol ethoxylates (e.g., monobenzyl biphenol alcohol ethoxylate), fatty alcohol propoxylates, Examples of the alkylphenol propoxylates include alkylphenol propoxylates, arylalkylphenol propoxylates, block polymers of polyethylene oxide and polypropylene oxide, block polymers of alkanol, polyethylene oxide, and polypropylene oxide, polyoxyethylene fatty acid esters (e.g., polyoxyethylene castor oil esters, polyoxyethylene stearic acid esters, polyoxyethylene tallow fatty acid esters), polyoxyethylene sorbitan fatty acid esters (e.g., polyoxyethylene sorbitan monooleate esters, polyoxyethylene sorbitan trioleate esters, polyoxyethylene sorbitan monolaurate esters, polyoxyethylene sorbitan stearic acid esters), polyoxyethylene fatty acid amine esters, polyoxyethylene rosin esters, polyoxypropylene fatty acid esters (e.g., polyoxypropylene castor oil esters, polyoxypropylene fatty acid amine esters), and undecafluorohexanoic acid.

[0022] In the present liquid pesticide composition, the content of the other surfactant is usually 0.1 to 8% by weight, or may be 0.5 to 7% by weight, 1 to 6% by weight, 1 to 5% by weight, 1 to 4% by weight, or 1 to 3% by weight, relative to 100% by weight of the present liquid pesticide composition.

[0023] The liquid pesticide composition contains 1,2-benzisothiazolin-3-one, which has the following structural formula: The compound is represented by the formula: 1,2-benzisothiazolin-3-one. The 1,2-benzisothiazolin-3-one is also referred to as 1,2-benzisothiazol-3(2H)-one, benzisothiazolinone, or BIT. In the present invention, the 1,2-benzisothiazolin-3-one is used as a preservative. An example of a commercially available product of the 1,2-benzisothiazolin-3-one is Proxel GXL (manufactured by Arxada). The liquid pesticide composition may contain, in addition to the 1,2-benzisothiazolin-3-one, one or more other preservatives. The content of the 1,2-benzisothiazolin-3-one in the liquid pesticide composition is typically 0.01% by weight or more, or may be 0.02% by weight or more, or 0.04% by weight or more, or 0.1% by weight or more, or may be 0.2% by weight or more, based on 100% by weight of the liquid pesticide composition. The content of the 1,2-benzisothiazolin-3-one in the liquid pesticide composition is usually 0.5% by weight or less, or may be 0.4% by weight or less, or may be 0.3% by weight or less, relative to 100% by weight of the liquid pesticide composition. The content of the 1,2-benzisothiazolin-3-one in the liquid pesticide composition is usually 0.01% by weight to 0.5% by weight, or may be 0.02% by weight to 0.4% by weight, or may be 0.1% by weight to 0.5% by weight, or may be 0.2% by weight, relative to 100% by weight of the liquid pesticide composition.

[0024] The content of 1,2-benzisothiazolin-3-one in this liquid pesticide composition can be measured using high performance liquid chromatography (HPLC) (Shimadzu Corporation, "20 Series"). The content of 1,2-benzisothiazolin-3-one in this liquid pesticide composition immediately after preparation ("C1") can be determined by measuring the content of 1,2-benzisothiazolin-3-one in this liquid pesticide composition immediately after preparation using the method described above. The content of 1,2-benzisothiazolin-3-one in this liquid pesticide composition two weeks after the start of storage ("C2") can be determined by storing this liquid pesticide composition in a glass container at 54°C for two weeks, and then measuring the content of 1,2-benzisothiazolin-3-one in this liquid pesticide composition using the method described above. The residual rate of 1,2-benzisothiazolin-3-one after the passage of time can be determined according to the following formula: [Equation 1] BIT survival rate (%) = 100 × C2 / C1

[0025] The present liquid pesticide composition contains water. The content of the water in the present liquid pesticide composition is usually 5 to 95% by weight, or may be 10 to 90% by weight, or may be 10 to 85% by weight, relative to 100% by weight of the present liquid pesticide composition.

[0026] The water may be, for example, tap water, ion-exchanged water, distilled water, filtered water, or sterilized water.

[0027] The liquid pesticide composition can be used as a pesticide formulation. Examples of the formulation of the pesticide formulation include a suspension concentrate (SC), a suspo emulsion (SE), an emulsion oil in water (EW), and a microcapsule suspension, with the SC formulation being preferred.

[0028] The present liquid pesticide composition contains at least one inorganic salt selected from the group consisting of sulfites and triphosphates. The inorganic salt may be sodium sulfite or potassium sulfite, or may be trisodium phosphate or tripotassium phosphate. Sodium sulfite is preferred as the inorganic salt. In the present liquid pesticide composition, the content of the inorganic salt is 0.20 to 10 wt%, alternatively 0.50 to 10 wt%, alternatively 0.50 to 5 wt%, or alternatively 1 to 4 wt%, relative to 100 wt% of the present liquid pesticide composition.

[0029] The pH of the present liquid pesticide composition at 25°C is 7.0 to 14.0, may be 7.0 to 12.0, or may be 8.0 to 12.0.

[0030] The pH of the liquid pesticide composition can be adjusted with a pH adjuster. Examples of the pH adjuster include acids such as citric acid, acetic acid, phosphoric acid, boric acid, tartaric acid, malic acid, fumaric acid, succinic acid, adipic acid, hydrochloric acid, and sulfuric acid, and bases such as sodium hydroxide, potassium hydroxide, calcium hydroxide, sodium carbonate, and sodium bicarbonate. The pH of the liquid pesticide composition can be adjusted by adding one or more of the pH adjusters to the liquid pesticide composition as needed.

[0031] The liquid pesticide composition may further contain one or more optional pesticide formulation adjuvants, such as antifreeze agents, antifoaming agents, and thickeners.

[0032] Examples of the antifreezing agent include alcohol-based solvents. Examples of the alcohol-based solvent include ethanol, ethylene glycol, propylene glycol, ethyl cellosolve, butyl carbitol, 3-methyl-methoxybutanol, and glycerin. The content of the antifreezing agent in the liquid pesticide composition is usually 1 to 20% by weight, or may be 2 to 15% by weight, or may be 3 to 10% by weight, relative to 100% by weight of the liquid pesticide composition.

[0033] Examples of the defoaming agent include surfactant-based defoaming agents containing a higher alcohol derivative or a fatty acid derivative as a component, oil-based defoaming agents containing a metal soap, an amide, or silica as a component, and silicone-based defoaming agents containing a silicone as a component. The content of the defoaming agent in the liquid pesticide composition is usually 0.01% by weight to 1% by weight, and may be 0.1% by weight to 0.4% by weight, relative to 100% by weight of the liquid pesticide composition.

[0034] Examples of the thickener include natural polysaccharides such as xanthan gum, rhamsan gum, locust bean gum, carrageenan, and welan gum, synthetic polymers such as sodium polyacrylate, semi-synthetic polysaccharides such as carboxymethyl cellulose, fine mineral powders such as aluminum magnesium silicate, smectite, bentonite, hectorite, and dry-process silica, and alumina sol. The content of the thickener in the liquid pesticide composition is usually 0.01% by weight to 0.5% by weight, and may be 0.1% by weight to 0.4% by weight, based on 100% by weight of the liquid pesticide composition.

[0035] The content of the pesticide formulation adjuvant in the present liquid pesticide composition is usually 0.01% by weight to 10% by weight, and may be 0.1% by weight to 7% by weight, based on 100% by weight of the present liquid pesticide composition.

[0036] Some examples of the liquid pesticide composition are shown below. The following values ​​represent weights relative to 100% by weight of the liquid pesticide composition. (1) A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkyl naphthalene sulfonate-formalin condensates, and naphthalene sulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and 0.20 to 10% by weight of a sulfite; wherein the pH is 7.0 to 14.0. (2) A liquid pesticidal composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate and alkyl naphthalene sulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and 0.20 to 10% by weight of a sulfite; wherein the pH is 8.0 to 12.0. (3) A liquid pesticide composition comprising a pesticidal compound, lignin sulfonate, 1,2-benzisothiazolin-3-one, water, and 0.20 to 10% by weight of a sulfite, wherein the pH is 8.0 to 12.0. (4) A liquid pesticide composition comprising a pesticidal compound, lignin sulfonate, at least one surfactant selected from the group consisting of alkylnaphthalenesulfonate-formalin condensates and naphthalenesulfonate-formalin condensates, 1,2-benzisothiazolin-3-one, water, and 0.50 to 5% by weight of a sulfite, wherein the pH is 7.0 to 14.0. (5) A liquid pesticide composition comprising: a pesticidal active compound, at least one surfactant selected from the group consisting of lignin sulfonate, an alkylnaphthalene sulfonate-formalin condensate, and a naphthalene sulfonate-formalin condensate, 1,2-benzisothiazolin-3-one, water, and 1 to 4% by weight of a sulfite, wherein the pH is 7.0 to 14.0. (6) A liquid pesticidal composition comprising: a pesticidal active compound, at least one surfactant selected from the group consisting of lignin sulfonate, an alkylnaphthalene sulfonate-formalin condensate, and a naphthalene sulfonate-formalin condensate, 1,2-benzisothiazolin-3-one, water, and 0.20 to 10% by weight of a sulfite, wherein the pH is 8.0 to 12.0.(7) A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and 0.20 to 10% by weight of a sulfite; wherein the water solubility of the pesticidal active compound at 20°C is 25 mg / L to 1000 mg / L; and the pH is 7.0 to 14.0. (8) A liquid pesticide composition comprising: a pesticidal active compound, at least one surfactant selected from the group consisting of lignin sulfonate, alkyl naphthalene sulfonate-formalin condensates, and naphthalene sulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and 0.20 to 10% by weight of a sulfite, wherein the pesticidal active compound has a water solubility of 350 mg / L or less at 20°C, and a pH of 7.0 to 14.0. (9) A liquid pesticide composition comprising: a pesticidal active compound, at least one surfactant selected from the group consisting of lignin sulfonate, alkyl naphthalene sulfonate-formalin condensates, and naphthalene sulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and 0.20 to 10% by weight of a sulfite, wherein the pesticidal active compound has a water solubility of 350 mg / L or less at 20°C, and a pH of 7.0 to 14.0. (10) A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and 0.20 to 10% by weight of a sulfite, wherein the content of the 1,2-benzisothiazolin-3-one is 0.02 to 0.4% by weight; the content of the pesticidal active compound is 0.1 to 50% by weight; the content of the surfactant is 0.1 to 8% by weight; and the pH is 7.0 to 14.0.(11) An SC agent comprising: a pesticidal active compound, lignosulfonate, 1,2-benzisothiazolin-3-one, water, and 1 to 4% by weight of a sulfite, wherein the content of the 1,2-benzisothiazolin-3-one is 0.02 to 0.4% by weight, the content of the pesticidal active compound is 0.1 to 50% by weight, the content of the surfactant is 0.1 to 8% by weight, the pH is 8.0 to 12.0, and the water solubility of the pesticidal active compound at 20°C is 350 mg / L or less. (12) An SC agent comprising: a pesticidal active compound, lignosulfonate, 1,2-benzisothiazolin-3-one, water, and 0.20 to 10% by weight of a sulfite, and the pH is 7.0 to 14.0. (13) An SC agent comprising: a pesticidal active compound; lignosulfonate; 1,2-benzisothiazolin-3-one; water; and 0.20 to 10% by weight of a sulfite, wherein the content of the 1,2-benzisothiazolin-3-one is 0.02 to 0.4% by weight; the content of the pesticidal active compound is 0.1 to 50% by weight; the content of the surfactant is 0.1 to 8% by weight; and the pH is 7.0 to 14.0. (14) A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and 0.20 to 10% by weight of a sulfite; wherein the water solubility of the pesticidal active compound at 20°C is 1 mg / L to 350 mg / L; and the pH is 7.0 to 14.0. (15) A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and 0.20 to 10% by weight of a sulfite; wherein the water solubility of the pesticidal active compound at 20°C is 10 mg / L to 350 mg / L; and the pH is 7.0 to 14.0.(16) A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and 0.20 to 10% by weight of a sulfite; wherein the water solubility of the pesticidal active compound at 20°C is 25 mg / L to 350 mg / L; and the pH is 7.0 to 14.0. (17) A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and 0.50 to 5% by weight of a sulfite; wherein the water solubility of the pesticidal active compound at 20°C is 1 mg / L to 350 mg / L; and the pH is 8.0 to 12.0. (18) A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and 0.50 to 5% by weight of a sulfite; wherein the water solubility of the pesticidal active compound at 20°C is 10 mg / L to 350 mg / L; and the pH is 8.0 to 12.0. (19) A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and 0.50 to 5% by weight of a sulfite; wherein the water solubility of the pesticidal active compound at 20°C is 25 mg / L to 350 mg / L; and the pH is 8.0 to 12.0.(20) A liquid pesticide composition comprising: a pesticidal active compound, a formalin condensate of lignosulfonate or alkylnaphthalenesulfonate, 1,2-benzisothiazolin-3-one, water, and 0.20 to 10% by weight of a sulfite, wherein the pesticidal active compound has a water solubility of 1 mg / L to 350 mg / L at 20°C, and a pH of 7.0 to 14.0. (21) A liquid pesticidal composition comprising: a pesticidal active compound, a formalin condensate of lignosulfonate or alkylnaphthalenesulfonate, 1,2-benzisothiazolin-3-one, water, and 0.20 to 10% by weight of a sulfite, wherein the pesticidal active compound has a water solubility of 10 mg / L to 350 mg / L at 20°C, and a pH of 7.0 to 14.0. (22) A liquid pesticide composition comprising: a pesticidal compound, a formalin condensate of lignosulfonate or alkylnaphthalenesulfonate, 1,2-benzisothiazolin-3-one, water, and 0.20 to 10% by weight of a sulfite, wherein the pesticidal active compound has a water solubility of 25 mg / L to 350 mg / L at 20°C, and a pH of 7.0 to 14.0. (23) A liquid pesticidal composition comprising: a pesticidal compound, a formalin condensate of lignosulfonate or alkylnaphthalenesulfonate, 1,2-benzisothiazolin-3-one, water, and 0.50 to 5% by weight of a sulfite, wherein the pesticidal active compound has a water solubility of 1 mg / L to 350 mg / L at 20°C, and a pH of 8.0 to 12.0. (24) A liquid pesticide composition comprising: a pesticidal active compound; a lignin sulfonate or alkylnaphthalene sulfonate formalin condensate; 1,2-benzisothiazolin-3-one; water; and 0.50 to 5% by weight of a sulfite; wherein the water solubility of the pesticidal active compound at 20°C is 10 mg / L to 350 mg / L; and the pH is 8.0 to 12.0.(25) A liquid pesticide composition comprising: a pesticidal active compound, a lignin sulfonate or an alkylnaphthalenesulfonate-formalin condensate, 1,2-benzisothiazolin-3-one, water, and 0.50 to 5% by weight of a sulfite, wherein the pesticidal active compound has a water solubility of 25 mg / L to 350 mg / L at 20°C, and a pH of 8.0 to 12.0. (26) A liquid pesticidal composition comprising: a pesticidal active compound, at least one surfactant selected from the group consisting of a lignin sulfonate, an alkylnaphthalenesulfonate-formalin condensate, and a naphthalenesulfonate-formalin condensate, 1,2-benzisothiazolin-3-one, water, and at least one inorganic salt selected from the group consisting of a sulfite and a phosphate trisalt, wherein the content of the inorganic salt is 0.20 to 10% by weight, and a pH of 7.0 to 14.0. (27) A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and at least one inorganic salt selected from the group consisting of sulfites and triphosphates, wherein the content of the inorganic salt is 0.20 to 10% by weight, and the pH is 8.0 to 12.0. (28) A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and at least one inorganic salt selected from the group consisting of sulfites and triphosphates, wherein the content of the inorganic salt is 0.50 to 5% by weight, and the pH is 7.0 to 14.0.(29) A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and at least one inorganic salt selected from the group consisting of sulfites and triphosphates, wherein the content of the inorganic salt is 0.50 to 50% by weight; and the pH is 8.0 to 12.0. (30) A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and at least one inorganic salt selected from sodium sulfite and potassium sulfite, wherein the content of the inorganic salt is 0.20 to 10% by weight, and the pH is 7.0 to 14.0. (31) A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and at least one inorganic salt selected from sodium sulfite and potassium sulfite, wherein the content of the inorganic salt is 0.20 to 10% by weight, and the pH is 8.0 to 12.0. (32) A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and at least one inorganic salt selected from sodium sulfite and potassium sulfite, wherein the content of the inorganic salt is 0.50 to 5% by weight, and the pH is 7.0 to 14.0.(33) A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and at least one inorganic salt selected from sodium sulfite and potassium sulfite, wherein the content of the inorganic salt is 0.50 to 5% by weight, and the pH is 8.0 to 12.0. (34) A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and at least one inorganic salt selected from trisodium phosphate and tripotassium phosphate, wherein the content of the inorganic salt is 0.50 to 5% by weight, and the pH is 7.0 to 14.0. (35) A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and at least one inorganic salt selected from trisodium phosphate and tripotassium phosphate, wherein the content of the inorganic salt is 0.20 to 10% by weight, and the pH is 8.0 to 12.0. (36) A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and at least one inorganic salt selected from trisodium phosphate and tripotassium phosphate, wherein the content of the inorganic salt is 0.50 to 5% by weight, and the pH is 7.0 to 14.0.(37) A liquid pesticide composition comprising: a pesticidal active compound, at least one surfactant selected from the group consisting of lignin sulfonate, an alkylnaphthalene sulfonate-formalin condensate, and a naphthalene sulfonate-formalin condensate, 1,2-benzisothiazolin-3-one, water, and at least one inorganic salt selected from trisodium phosphate and tripotassium phosphate, wherein the content of the inorganic salt is 0.50 to 5% by weight, and the pH is 8.0 to 12.0. (38) An SC agent comprising: a pesticidal active compound, at least one surfactant selected from the group consisting of lignin sulfonate and an alkylnaphthalene sulfonate-formalin condensate, 1,2-benzisothiazolin-3-one, water, and at least one inorganic salt selected from sulfites and triphosphates, wherein the content of the inorganic salt is 0.50 to 5% by weight, and the pH is 8.0 to 12.0. (39) An SC agent comprising: a pesticidal active compound, at least one surfactant selected from the group consisting of lignin sulfonates and alkyl naphthalene sulfonate-formalin condensates, 1,2-benzisothiazolin-3-one, water, and sodium sulfite, wherein the sodium sulfite content is 0.50 to 5% by weight, and the pH is 8.0 to 12.0. (40) An SC agent comprising: a pesticidal active compound, at least one surfactant selected from the group consisting of lignin sulfonates and alkyl naphthalene sulfonate-formalin condensates, 1,2-benzisothiazolin-3-one, water, and tripotassium phosphate, wherein the tripotassium phosphate content is 0.50 to 5% by weight, and the pH is 8.0 to 12.0. (41) An SC agent comprising: a pesticidal active compound; lignosulfonate; 1,2-benzisothiazolin-3-one; water; and at least one inorganic salt selected from sulfites and triphosphates, wherein the content of the inorganic salt is 0.50 to 5% by weight; and the pH is 8.0 to 12.0.(42) An SC agent comprising a pesticidal active compound, lignosulfonate, 1,2-benzisothiazolin-3-one, water, and sodium sulfite, wherein the sodium sulfite content is 0.50 to 5% by weight, and the pH is 8.0 to 12.0. (43) An SC agent comprising a pesticidal active compound, lignosulfonate, 1,2-benzisothiazolin-3-one, water, and tripotassium phosphate, wherein the tripotassium phosphate content is 0.50 to 5% by weight, and the pH is 8.0 to 12.0. (44) An SC agent comprising: a pesticidal active compound, at least one surfactant selected from the group consisting of lignosulfonate and alkylnaphthalenesulfonate-formalin condensates, 1,2-benzisothiazolin-3-one, water, and sodium sulfite, wherein the water solubility of the pesticidal active compound at 20°C is 25 mg / L to 1000 mg / L, the content of the sodium sulfite is 0.50 to 5% by weight, and the pH is 8.0 to 12.0. (45) An SC agent comprising: a pesticidal active compound, lignosulfonate, 1,2-benzisothiazolin-3-one, water, and sodium sulfite, wherein the water solubility of the pesticidal active compound at 20°C is 25 mg / L to 1000 mg / L, the content of the sodium sulfite is 0.50 to 5% by weight, and the pH is 8.0 to 12.0. (46) An SC agent comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonates and alkylnaphthalene sulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and tripotassium phosphate, wherein the water solubility of the pesticidal active compound at 20°C is 25 mg / L to 1000 mg / L; the content of the tripotassium phosphate is 0.50 to 5% by weight; and the pH is 8.0 to 12.0.(47) An SC agent comprising a pesticidal active compound, lignosulfonate, 1,2-benzisothiazolin-3-one, water, and tripotassium phosphate, wherein the pesticidal active compound has a water solubility of 25 mg / L to 1000 mg / L at 20°C, the content of the tripotassium phosphate is 0.50 to 5% by weight, and the pH is 8.0 to 12.0. (48) An SC agent comprising a pesticidal active compound, at least one surfactant selected from the group consisting of lignosulfonate and alkylnaphthalenesulfonate-formalin condensates, 1,2-benzisothiazolin-3-one, water, and sodium sulfite, wherein the pesticidal active compound has a water solubility of 350 mg / L or less at 20°C, the content of the sodium sulfite is 0.50 to 5% by weight, and the pH is 8.0 to 12.0. (49) An SC agent comprising a pesticidal active compound, lignosulfonate, 1,2-benzisothiazolin-3-one, water, and sodium sulfite, wherein the water solubility of the pesticidal active compound at 20°C is 350 mg / L or less, the content of the sodium sulfite is 0.50 to 5% by weight, and the pH is 8.0 to 12.0. (50) An SC agent comprising a pesticidal active compound, at least one surfactant selected from the group consisting of lignosulfonate and alkylnaphthalenesulfonate-formalin condensates, 1,2-benzisothiazolin-3-one, water, and tripotassium phosphate, wherein the water solubility of the pesticidal active compound at 20°C is 350 mg / L or less, the content of the tripotassium phosphate is 0.50 to 5% by weight, and the pH is 8.0 to 12.0. (51) An SC agent comprising: a pesticidal active compound; lignosulfonate; 1,2-benzisothiazolin-3-one; water; and tripotassium phosphate; wherein the water solubility of the pesticidal active compound at 20°C is 350 mg / L or less; the content of the tripotassium phosphate is 0.50 to 5 wt %; and the pH is 8.0 to 12.0.(52) A liquid pesticide composition comprising a pesticidal active compound, lignosulfonate, 1,2-benzisothiazolin-3-one, water, and at least one inorganic salt selected from trisodium phosphate and tripotassium phosphate, wherein the water solubility of the pesticidal active compound at 20°C is 350 mg / L or less, the contents of the trisodium phosphate and tripotassium phosphate are 0.20 to 5% by weight, and the pH is 8.0 to 12.0. (53) A SC agent comprising a pesticidal active compound, lignosulfonate, 1,2-benzisothiazolin-3-one, water, and at least one inorganic salt selected from trisodium phosphate and tripotassium phosphate, wherein the water solubility of the pesticidal active compound at 20°C is 350 mg / L or less, the contents of the trisodium phosphate and tripotassium phosphate are 0.20 to 5% by weight, and the pH is 8.0 to 12.0. (54) A liquid pesticide composition comprising a pesticidal active compound, lignosulfonate, 1,2-benzisothiazolin-3-one, water, and at least one inorganic salt selected from trisodium phosphate and tripotassium phosphate, wherein the water solubility of the pesticidal active compound at 20°C is 350 mg / L or less, the contents of the trisodium phosphate and tripotassium phosphate are 0.50 to 5% by weight, and the pH is 8.0 to 12.0. (55) A SC agent comprising a pesticidal active compound, lignosulfonate, 1,2-benzisothiazolin-3-one, water, and at least one inorganic salt selected from trisodium phosphate and tripotassium phosphate, wherein the water solubility of the pesticidal active compound at 20°C is 350 mg / L or less, the contents of the trisodium phosphate and tripotassium phosphate are 0.50 to 5% by weight, and the pH is 8.0 to 12.0.

[0037] (Method for Producing Liquid Pesticide Composition) The method for producing the liquid pesticide composition comprises the steps of mixing a) a pesticidal active compound, b) at least one surfactant selected from the group consisting of ligninsulfonate, alkylnaphthalenesulfonate-formalin condensate, and naphthalenesulfonate-formalin condensate, c) 1,2-benzisothiazolin-3-one, d) water, and e) at least one inorganic salt selected from the group consisting of sulfite and triphosphate, wherein the pH of the liquid pesticide composition is 7.0 to 14.0, and the content of the inorganic salt is 0.20 to 10 wt %. The inorganic salt may be sodium sulfite or potassium sulfite, or may be trisodium phosphate or tripotassium phosphate. In the liquid pesticide composition, decomposition of the 1,2-benzisothiazolin-3-one may be inhibited.

[0038] The liquid pesticide composition can be diluted with water as needed and applied to paddy fields, fields, orchards, lawns, non-agricultural land, and other locations. The liquid pesticide composition can also be sprayed onto plants growing in the location or onto the soil of the location. Examples of application methods include soil surface spraying and foliage spraying. The liquid pesticide composition or a diluted solution thereof can also be used for seed treatment, seedling box treatment, and the like.

[0039] (Method for inhibiting decomposition of 1,2-benzisothiazolin-3-one) According to one embodiment of the present invention, there is provided a method for inhibiting decomposition of 1,2-benzisothiazolin-3-one, comprising the following steps: A method for inhibiting decomposition of 1,2-benzisothiazolin-3-one in a liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensate, and naphthalenesulfonate-formalin condensate; 1,2-benzisothiazolin-3-one; water; and at least one inorganic salt selected from the group consisting of sulfite and triphosphate, wherein the content of the inorganic salt is 0.20 to 10 wt %, preferably 0.50 to 10 wt %, more preferably 0.5 to 5 wt %, and even more preferably 1 to 4 wt %, and the pH of the liquid pesticide composition is 7.0 to 14.0, preferably 7.0 to 12.0, and even more preferably 8.0 to 12.0. In the method, the inorganic salt may be sodium sulfite or potassium sulfite, or may be trisodium phosphate or tripotassium phosphate.

[0040] (Use of at least one inorganic salt selected from the group consisting of sulfites and triphosphates for inhibiting decomposition of 1,2-benzisothiazolin-3-one) According to one embodiment of the present invention, there is provided a use of a sulfite for inhibiting the decomposition of 1,2-benzisothiazolin-3-one, comprising the following composition: 1. Use of an inorganic salt to inhibit decomposition of 1,2-benzisothiazolin-3-one in a liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensate, and naphthalenesulfonate-formalin condensate; 1,2-benzisothiazolin-3-one; water; and at least one inorganic salt selected from the group consisting of sulfite and triphosphate, wherein the pH of the liquid pesticide composition is 7.0 to 14.0, preferably 7.0 to 12.0, and more preferably 8.0 to 12.0, and the content of the inorganic salt is 0.20 to 10% by weight, preferably 0.50 to 10% by weight, more preferably 0.5 to 5% by weight, and even more preferably 1 to 4% by weight. In the use, the inorganic salt may be sodium sulfite or potassium sulfite, or may be trisodium phosphate or tripotassium phosphate.

[0041] The present invention will be described in more detail below with reference to Production Examples and Evaluation Test Examples, but the present invention is not limited to these examples. The liquid pesticide compositions according to Production Examples 1 to 20 and Comparative Examples 1 to 8 were prepared by the methods described below using the raw materials listed in Tables 1 to 4. The values ​​in Tables 1 to 4 represent weight percentages relative to 100% by weight of the liquid pesticide composition.

[0042] Production Example 1 (Production of the present liquid pesticide composition 1) Step 1 To 17.80 parts by weight of ion-exchanged water, 2.00 parts by weight of sodium lignosulfonate (trade name: Reax 85A), 0.20 parts by weight of an antifoaming agent (trade name: XIAMETER ACP-1500), and 10.00 parts by weight of diethofencarb were added, mixed and stirred, and wet-pulverized using a bead mill to obtain 30.00 parts by weight of suspension (1).

[0043] Step 2: Thickeners (trade name: Veegum R 0.30 parts by weight and trade name: Kelzan S Plus 0.15 parts by weight), 1,2-benzisothiazolin-3-one (trade name: Proxel GXL) 0.20 parts by weight, antifreeze (propylene glycol) 5.00 parts by weight, and ion-exchanged water 14.35 parts by weight were mixed to obtain 20.00 parts by weight of thickener-containing liquid (1).

[0044] Step 3: 30.00 parts by weight of the suspension (1) prepared in Step 1, 20.00 parts by weight of the thickener-containing liquid (1) prepared in Step 2, and 0.25 parts by weight of sodium sulfite were mixed, and ion-exchanged water was further added so that the total amount of the liquid pesticide composition became 100 parts by weight, thereby obtaining a liquid pesticide composition (also referred to as "this liquid pesticide composition 1").

[0045] Production Example 2 (Production of the Present Liquid Pesticide Composition 2) A liquid pesticide composition (also referred to as "the Present Liquid Pesticide Composition 2") was obtained according to the production method described in Production Example 1 above, except that the amount of sodium sulfite used was changed to 0.50 parts by weight.

[0046] Production Example 3 (Production of the Present Liquid Pesticide Composition 3) A liquid pesticide composition (also referred to as "the Present Liquid Pesticide Composition 3") was obtained according to the production method described in Production Example 1 above, except that the amount of sodium sulfite used was changed to 7.50 parts by weight.

[0047] Production Example 4 (Production of Liquid Pesticide Composition 4) A liquid pesticide composition (also referred to as "Liquid Pesticide Composition 4") was obtained according to the production method described in Production Example 1 above, except that the amount of sodium sulfite used was changed to 10.00 parts by weight.

[0048] Production Example 5 (Production of the Present Liquid Pesticide Composition 5) A liquid pesticide composition (also referred to as "the Present Liquid Pesticide Composition 5") was obtained according to the production method described in Production Example 1 above, except that the amount of sodium sulfite used was changed to 2.50 parts by weight and 1.56 parts by weight of 8 mol / L potassium hydroxide was further added as a pH adjuster in step 3.

[0049] Production Example 6 (Production of the Present Liquid Pesticide Composition 6) A liquid pesticide composition (also referred to as "the Present Liquid Pesticide Composition 6") was obtained according to the production method described in Production Example 1 above, except that the amount of sodium sulfite used was changed to 1.00 part by weight and 0.26 part by weight of 85% phosphoric acid was further added as a pH adjuster in step 3.

[0050] Production Example 7 (Production of Liquid Pesticide Composition 7) A liquid pesticide composition (also referred to as "Liquid Pesticide Composition 7") was obtained according to the production method described in Production Example 1 above, except that 10.00 parts by weight of diethofencarb was changed to 10.00 parts by weight of clothianidin, 2.00 parts by weight of sodium ligninsulfonate was changed to 1.50 parts by weight of alkyl naphthalenesulfonate formalin condensate (trade name: Morwet D-425), the amount of sodium sulfite used was changed to 1.00 parts by weight, and 0.06 parts by weight of a pH adjuster (85% phosphoric acid) was further added in step 3.

[0051] Production Example 8 (Production of the present liquid pesticide composition 8) Step 1 To 26.80 parts by weight of ion-exchanged water, 3.00 parts by weight of alkylnaphthalenesulfonate formalin condensate (trade name: Morwet D-425), 0.20 parts by weight of an antifoaming agent (trade name: XIAMETER ACP-1500), and 20.00 parts by weight of clothianidin were added, stirred and mixed, and wet-pulverized using a bead mill to obtain 50.00 parts by weight of suspension (1).

[0052] Step 2: Thickeners (trade name: Veegum R 0.30 parts by weight and trade name: Kelzan S Plus 0.15 parts by weight), 1,2-benzisothiazolin-3-one (trade name: Proxel GXL) 0.20 parts by weight, antifreeze (propylene glycol) 5.00 parts by weight, and ion-exchanged water 14.35 parts by weight were mixed to obtain 20.00 parts by weight of thickener-containing liquid (1).

[0053] Step 3: 50.00 parts by weight of the suspension (1) prepared in Step 1, 20.00 parts by weight of the thickener-containing liquid (1) prepared in Step 2, and 2.50 parts by weight of sodium sulfite were mixed, and ion-exchanged water was further added so that the total amount of the liquid pesticide composition became 100 parts by weight, thereby obtaining a liquid pesticide composition (also referred to as "this liquid pesticide composition 8").

[0054] Production Example 9 (Production of Liquid Pesticide Composition 9) Step 1 To 31.80 parts by weight of ion-exchanged water, 0.50 parts by weight of sodium ligninsulfonate (trade name: Reax 85A), 5.00 parts by weight of alkylnaphthalenesulfonate formalin condensate (trade name: Morwet D-425), 2.50 parts by weight of surfactant (trade name: Soprophor FLK), 0.20 parts by weight of antifoaming agent (trade name: XIAMETER ACP-1500), and 40.00 parts by weight of flumioxazin were added, stirred, mixed, and wet-pulverized using a bead mill to obtain 80.00 parts by weight of suspension (2).

[0055] Step 2: Thickeners (trade name: Veegum R 0.10 parts by weight and trade name: Kelzan S Plus 0.05 parts by weight), 1,2-benzisothiazolin-3-one (trade name: Proxel GXL) 0.20 parts by weight, antifreeze (propylene glycol) 5.00 parts by weight, and ion-exchanged water 4.65 parts by weight were mixed to obtain 10.00 parts by weight of a thickener-containing liquid (2).

[0056] Step 3: 80.00 parts by weight of the suspension (2) prepared in Step 1, 10.00 parts by weight of the thickener-containing liquid (2) prepared in Step 2, and 0.75 parts by weight of sodium sulfite were mixed, and ion-exchanged water was further added so that the total amount of the liquid pesticide composition became 100 parts by weight, thereby obtaining a liquid pesticide composition (also referred to as "Liquid Pesticide Composition 9").

[0057] Production Example 10 (Production of the Present Liquid Pesticide Composition 10) A liquid pesticide composition (also referred to as "the Present Liquid Pesticide Composition 10") was obtained according to the production method described in Production Example 9 above, except that the amount of sodium sulfite used was changed to 2.00 parts by weight.

[0058] Production Example 11 (Production of the Present Liquid Pesticide Composition 11) A liquid pesticide composition (also referred to as "the Present Liquid Pesticide Composition 11") was obtained according to the production method described in Production Example 9 above, except that the amount of sodium sulfite used was changed to 4.00 parts by weight and 0.62 parts by weight of 85% phosphoric acid was further added as a pH adjuster in step 3.

[0059] Production Example 12 (Production of the Present Liquid Pesticide Composition 12) A liquid pesticide composition (also referred to as "the Present Liquid Pesticide Composition 12") was obtained according to the production method described in Production Example 9 above, except that the amount of sodium sulfite used was changed to 4.00 parts by weight and 0.29 parts by weight of 8 mol / L potassium hydroxide was further added as a pH adjuster in step 3.

[0060] Production Example 13 (Production of the Present Liquid Pesticide Composition 13) A liquid pesticide composition (also referred to as "the Present Liquid Pesticide Composition 13") was obtained according to the production method described in Production Example 9 above, except that 0.75 parts by weight of sodium sulfite was changed to 2.00 parts by weight of potassium sulfite.

[0061] Production Example 14 (Production of Liquid Pesticide Composition 14) A liquid pesticide composition (also referred to as "Liquid Pesticide Composition 14") was obtained according to the production method described in Production Example 9 above, except that 0.75 parts by weight of sodium sulfite was changed to 2.50 parts by weight of potassium sulfite.

[0062] Production Example 15 (Production of the Present Liquid Pesticide Composition 15) A liquid pesticide composition (also referred to as "the Present Liquid Pesticide Composition 15") was obtained according to the production method described in Production Example 9 above, except that 0.75 parts by weight of sodium sulfite was changed to 5.00 parts by weight of potassium sulfite.

[0063] Production Example 16 (Production of the present liquid pesticide composition 16) Step 1 To 18.30 parts by weight of ion-exchanged water, 1.50 parts by weight of sodium lignosulfonate (trade name: Reax 85A), 0.20 parts by weight of an antifoaming agent (trade name: XIAMETER ACP-1500), and 10.00 parts by weight of etoxazole were added, mixed and stirred, and wet-pulverized using a bead mill to obtain 30.00 parts by weight of suspension (1).

[0064] Step 2: Thickeners (trade name: Veegum R 0.30 parts by weight and trade name: Kelzan S Plus 0.15 parts by weight), 1,2-benzisothiazolin-3-one (trade name: Proxel GXL) 0.20 parts by weight, antifreeze (propylene glycol) 5.00 parts by weight, and ion-exchanged water 14.35 parts by weight were mixed to obtain 20.00 parts by weight of thickener-containing liquid (1).

[0065] Step 3: 30.00 parts by weight of the suspension (1) prepared in Step 1, 20.00 parts by weight of the thickener-containing liquid (1) prepared in Step 2, and 1.00 parts by weight of trisodium phosphate were mixed, and ion-exchanged water was further added so that the total amount of the liquid pesticide composition was 100 parts by weight, thereby obtaining a liquid pesticide composition (also referred to as "this liquid pesticide composition 16").

[0066] Production Example 17 (Production of Liquid Pesticide Composition 17) A liquid pesticide composition (also referred to as "Liquid Pesticide Composition 17") was obtained according to the production method described in Production Example 16 above, except that 1.00 parts by weight of trisodium phosphate was changed to 0.50 parts by weight of tripotassium phosphate.

[0067] Production Example 18 (Production of Liquid Pesticide Composition 18) Step 1 To 18.05 parts by weight of ion-exchanged water, 1.50 parts by weight of sodium ligninsulfonate (trade name: Reax 85A), 0.25 parts by weight of a naphthalenesulfonate formalin condensate (trade name: Demol N), 0.20 parts by weight of an antifoaming agent (trade name: XIAMETER ACP-1500), and 10.00 parts by weight of etoxazole were added, mixed and stirred, and wet-pulverized using a bead mill to obtain 30.00 parts by weight of Suspension (1).

[0068] Step 2: Thickeners (trade name: Veegum R 0.30 parts by weight and trade name: Kelzan S Plus 0.15 parts by weight), 1,2-benzisothiazolin-3-one (trade name: Proxel GXL) 0.20 parts by weight, antifreeze (propylene glycol) 5.00 parts by weight, and ion-exchanged water 14.35 parts by weight were mixed to obtain 20.00 parts by weight of thickener-containing liquid (1).

[0069] Step 3: 30.00 parts by weight of the suspension (1) prepared in Step 1, 20.00 parts by weight of the thickener-containing liquid (1) prepared in Step 2, and 4.50 parts by weight of tripotassium phosphate were mixed, and ion-exchanged water was further added so that the total amount of the liquid pesticide composition became 100 parts by weight, thereby obtaining a liquid pesticide composition (also referred to as "this liquid pesticide composition 18").

[0070] Production Example 19 (Production of the Present Liquid Pesticide Composition 19) A liquid pesticide composition (also referred to as "the Present Liquid Pesticide Composition 19") was obtained according to the production method described in Production Example 18 above, except that the amount of tripotassium phosphate used was changed to 0.20 parts by weight and 0.11 parts by weight of 85% phosphoric acid was further added as a pH adjuster in step 3.

[0071] Production Example 20 (Production of Liquid Pesticide Composition 20) A liquid pesticide composition (also referred to as "Liquid Pesticide Composition 20") was obtained according to the production method described in Production Example 18 above, except that the amount of sodium lignosulfonate used was 2.25 parts by weight, the amount of tripotassium phosphate used was 2.50 parts by weight, and 0.63 parts by weight of 85% phosphoric acid was further added as a pH adjuster in step 3.

[0072] Comparative Example 1 (Production of Comparative Liquid Pesticide Composition 1) A liquid pesticide composition (also referred to as "Comparative Liquid Pesticide Composition 1") was obtained according to the production method described in Production Example 1 above, except that the amount of sodium sulfite used was changed to 0.01 parts by weight.

[0073] Comparative Example 2 (Production of Comparative Liquid Pesticide Composition 2) A liquid pesticide composition (also referred to as "Comparative Liquid Pesticide Composition 2") was obtained according to the production method described in Production Example 1 above, except that the amount of sodium sulfite used was changed to 15.00 parts by weight.

[0074] Comparative Example 3 (Production of Comparative Liquid Pesticide Composition 3) A liquid pesticide composition (also referred to as "Comparative Liquid Pesticide Composition 3") was obtained according to the production method described in Production Example 1 above, except that sodium sulfite was not added.

[0075] Comparative Example 4 (Production of Comparative Liquid Pesticide Composition 4) A liquid pesticide composition (also referred to as "Comparative Liquid Pesticide Composition 4") was obtained according to the production method described in Production Example 1 above, except that the amount of sodium sulfite used was changed to 1.00 part by weight and 0.71 parts by weight of 85% phosphoric acid was further added as a pH adjuster in step 3.

[0076] Comparative Example 5 (Production of Comparative Liquid Pesticide Composition 5) A liquid pesticide composition (also referred to as "Comparative Liquid Pesticide Composition 5") was obtained according to the production method described in Production Example 1 above, except that sodium sulfite was not added and 0.09 parts by weight of 85% phosphoric acid was further added as a pH adjuster in step 3.

[0077] Comparative Example 6 (Production of Comparative Liquid Pesticide Composition 6) A liquid pesticide composition (also referred to as "Comparative Liquid Pesticide Composition 6") was obtained according to the production method described in Production Example 9 above, except that sodium sulfite was not added.

[0078] Comparative Example 7 (Production of Comparative Liquid Pesticide Composition 7) A liquid pesticide composition (also referred to as "Comparative Liquid Pesticide Composition 7") was obtained according to the production method described in Production Example 8 above, except that 1.20 parts by weight of 85% phosphoric acid was further added as a pH adjuster in step 3.

[0079] Comparative Example 8 (Production of Comparative Liquid Pesticide Composition 8) A comparative liquid pesticide composition (also referred to as "Comparative Liquid Pesticide Composition 8") was obtained according to the production method described in Production Example 18 above, except that the amount of sodium lignosulfonate used was 2.25 parts by weight and tripotassium phosphate was not used.

[0080]

[0081]

[0082]

[0083]

[0084] The water solubilities of the pesticide active compounds used in the examples are as follows: Diethofencarb: 26.6 mg / L (20°C) Clothianidin: 327 mg / L (20°C) Flumioxazin: 1.79 mg / L (25°C) Etoxazole: 0.079 mg / L (20°C)

[0085] The trade names listed in Tables 1 to 4 above are as follows: Soprophor FLK: polyoxyethylene tristyrylphenyl ether phosphate ester potassium salt, manufactured by Solvay Nicca; Proxel GXL: 1,2-benzisothiazolin-3-one, manufactured by Arxada; XIAMETER ACP-1500: silicone-based mixture, manufactured by Dow Corning Toray Co., Ltd.; Kelzan S Plus: xanthan gum, manufactured by CP Kelco; Veegum R: magnesium aluminum silicate, manufactured by R. T. Vanderbilt Company, Inc.

[0086] (Method for analyzing 1,2-benzisothiazolin-3-one residual rate) The residual rate of 1,2-benzisothiazolin-3-one after a certain time period (hereinafter referred to as BIT residual rate in Tables 1 to 4) was analyzed according to the method described in the specification of WO 2022 / 118818 (see paragraph

[0066] ). The content of 1,2-benzisothiazolin-3-one ("C1") in the present liquid pesticide compositions 1 to 15 and the comparative liquid pesticide compositions 1 to 7 immediately after preparation was measured using high performance liquid chromatography (HPLC) (Shimadzu "20 Series"). The present liquid pesticide compositions 1 to 15 and the comparative liquid pesticide compositions 1 to 7 were each placed in a glass container and stored at 54 ° C. Two weeks (2W) after the start of storage, the content of 1,2-benzisothiazolin-3-one ("C2") in each liquid pesticide composition was measured using HPLC ("20 series" manufactured by Shimadzu).

[0087] Based on the above measurement results, the BIT residual rate was calculated according to the following formula: [Equation 2] BIT residual rate (%) = 100 × C2 / C1 The calculated BIT residual rate (%) was evaluated as particularly good (A) if it was 70% or more, good (B) if it was 60% or more but less than 70%, and poor (C) if it was less than 60%. The results are shown in Tables 1 to 4 above.

[0088] (Method for evaluating occurrence of aggregates) Immediately after preparation, the present liquid pesticide compositions 1 to 20 and the comparative liquid pesticide compositions 1 to 8 were placed in glass containers, and the presence or absence of aggregates was confirmed visually. Cases where no aggregates were observed were evaluated as good (◯), and cases where aggregates were observed were evaluated as poor (×). The results are shown in Tables 1 to 4 above.

[0089] The present liquid pesticide composition contains an inorganic salt in a specific amount, and the pH of the liquid pesticide composition is set within a specific range, thereby inhibiting the decomposition of 1,2-benzisothiazolin-3-one.

Claims

1. A liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of lignin sulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and at least one inorganic salt selected from the group consisting of sulfites and triphosphates, wherein the content of the inorganic salt is 0.20 to 10% by weight, and the pH is 7.0 to 14.

0.

2. The liquid pesticide composition according to claim 1, wherein the pH is 8.0 to 12.

0.

3. The liquid pesticide composition according to claim 1 or 2, wherein the content of the inorganic salt is 0.50 to 5% by weight.

4. The liquid pesticide composition according to any one of claims 1 to 3, wherein the inorganic salt is sodium sulfite or potassium sulfite.

5. The liquid pesticide composition according to any one of claims 1 to 3, wherein the inorganic salt is trisodium phosphate or tripotassium phosphate.

6. The liquid pesticide composition according to any one of claims 1 to 5, wherein the surfactant is a lignin sulfonate.

7. The liquid pesticide composition according to any one of claims 1 to 6, wherein the pesticidal active compound is solid at 25°C.

8. The liquid pesticide composition according to any one of claims 1 to 7, wherein the water solubility of the pesticidal active compound at 20°C is 350 mg / L or less.

9. The liquid pesticide composition according to any one of claims 1 to 8, in which decomposition of 1,2-benzisothiazolin-3-one is inhibited.

10. A method for inhibiting decomposition of 1,2-benzisothiazolin-3-one in a liquid pesticide composition comprising: a pesticidal active compound; at least one surfactant selected from the group consisting of ligninsulfonate, alkylnaphthalenesulfonate-formalin condensates, and naphthalenesulfonate-formalin condensates; 1,2-benzisothiazolin-3-one; water; and at least one inorganic salt selected from the group consisting of sulfites and triphosphates, wherein the content of the inorganic salt is 0.20 to 10 wt %, and the pH of the liquid pesticide composition is 7.0 to 14.

0.

11. The method of claim 10, wherein the pH is between 8.0 and 12.

0.

12. The method according to claim 10 or 11, wherein the content of the inorganic salt is 0.50 to 5% by weight.

13. A method for producing a liquid pesticide composition, comprising the step of mixing a) a pesticidal active compound, b) at least one surfactant selected from the group consisting of ligninsulfonate, alkylnaphthalenesulfonate-formalin condensate, and naphthalenesulfonate-formalin condensate, c) 1,2-benzisothiazolin-3-one, d) water, and e) at least one inorganic salt selected from the group consisting of sulfites and triphosphates, wherein the pH of the liquid pesticide composition is 7.0 to 14.0, and the content of the inorganic salt is 0.20 to 10% by weight.

14. The method according to claim 13, wherein decomposition of the 1,2-benzisothiazolin-3-one in the liquid pesticide composition is inhibited.

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