JP5565594B2 - Low viscosity agrochemical composition - Google Patents

Description

  The present invention relates to an agrochemical composition having good handling properties and storage stability.

  Agrochemical active ingredients, especially herbicides, generally require the presence of a suitable surfactant to obtain high agrochemical activity. Surfactants can be provided in high concentration formulations or can be added by the end user to the diluted spray solution. For example, in a wide range of studies reported in Non-Patent Document 1 below, Wyrill and Burnside have found that the ability of amino acid herbicides to enhance herbicidal activity varies widely among surfactants.

  Patent Document 1 discloses a composition containing an alkyl polyglycoside.

  Furthermore, Patent Document 2 discloses a method for improving the rain resistance of an amino acid herbicide using acetylene-based diol.

However, these nonionic surfactants improve the effect of the agrochemical active ingredient. However, when a nonionic surfactant is contained in the composition, the viscosity of the composition increases, and in some cases, the cloud point of the composition increases. Decreases. In particular, when the concentration of the pesticidal active ingredient is high, these phenomena become remarkable, and the handling property and storage stability of the composition may be problematic.
JP 62-099313 A Japanese Patent Laid-Open No. 06-024918 Weed Science, 1977, 25, p. 275-287

  The present invention solves the above-mentioned problems, and its purpose is to provide a liquid composition that has an excellent pest control effect, a low viscosity, a high cloud point, and excellent handling properties and storage stability. is there.

  As a result of diligent research, the present inventors have found that in a composition containing an agrochemical active ingredient, a nonionic surfactant and an organic solvent, dipropylene glycol, N-methylpyrrolidone, 2-methoxyethanol, ethanol, butanediol as the organic solvent It has been found that when at least one selected from diethylene glycol monomethyl ether, 1,5-pentanediol and triethylene glycol monoethyl ether is used, the viscosity of the liquid composition is lowered and the handling property is excellent.

  Further, as a result of further studies, the present inventors have found that when a composition containing an amino acid herbicide, a nonionic surfactant and an organic solvent is used in combination with butanediol and propylene glycol as the organic solvent, the liquid composition becomes cloudy. The point became high and it discovered that it was excellent in storage stability at high temperature. In the present specification, the “cloud point” means a temperature that becomes cloudy as the liquid composition is heated.

  That is, the present invention relates to the following [1] to [13].

  [1] In a liquid composition containing an agrochemical active ingredient, a nonionic surfactant and an organic solvent, the organic solvent is dipropylene glycol, N-methylpyrrolidone, 2-methoxyethanol, ethanol, butanediol, diethylene glycol monomethyl ether, 1 , 5-pentanediol and at least one selected from triethylene glycol monoethyl ether.

  [2] The liquid composition according to the above [1], wherein the pesticidal active ingredient is an amino acid herbicide.

  [3] The liquid composition according to the above [2], wherein the organic solvent is butanediol and further contains propylene glycol as another organic solvent.

  [4] The liquid composition according to the above [3], wherein propylene glycol is 0.25 parts by weight or more with respect to 1 part by weight of butanediol.

  [5] The liquid composition according to the above [3], wherein propylene glycol is 0.8 parts by weight or more with respect to 100 parts by weight of the liquid composition.

  [6] The liquid composition according to any one of [3] to [5], wherein the butanediol is 1,4-butanediol.

  [7] The liquid composition according to any one of [2] to [6], wherein the amino acid herbicide is at least one selected from glyphosate, bialaphos, glufosinate, and salts thereof.

  [8] The composition according to any one of [2] to [6], wherein the amino acid herbicide is at least one selected from glyphosate and a salt thereof.

  [9] The composition according to [8] above, wherein the concentration of one or more selected from glyphosate and a salt thereof is 440 g / L or more in terms of equivalent amount of glyphosate acid.

  [10] The liquid composition according to any one of [1] to [9], wherein the nonionic surfactant is at least one selected from alkylglycosides, alkylpolyglycosides, and acetylene surfactants.

  [11] The liquid composition according to any one of [1] to [10], further including a liquid carrier.

  [12] The liquid composition according to the above [11], wherein the liquid carrier is water.

  [13] In a liquid composition containing an agrochemical active ingredient, a nonionic surfactant and an organic solvent, propylene glycol, dipropylene glycol, N-methylpyrrolidone, 2-methoxyethanol, ethanol, butanediol, diethylene glycol monomethyl ether as the organic solvent A method for reducing the viscosity of a liquid composition by using one or more selected from 1,5-pentanediol and triethylene glycol monoethyl ether.

  By this invention, the viscosity of a liquid composition is reduced and handling property is improved. In addition, when an amino acid herbicide is contained as an agrochemical active ingredient, the cloud point of the liquid composition is increased, and the storage stability at high temperatures is improved.

  The pesticidal active ingredient of the present invention is not limited as long as it has an effect of controlling pests, and examples thereof include herbicides, insecticides, acaricides, nematicides, bactericides, and bactericides. Specific examples of the pesticidal active ingredient of the present invention are shown below, but the pesticidal composition of the present invention may contain one or more of these.

  Herbicides: pyrazosulfuron ethyl, halosulfuron methyl, bensulfuron methyl, imazosulfuron, azimsulfuron, cinosulfuron, cyclosulfamuron ), Ethoxysulfuron, pyraclonil, tefuryltirone, mesotrione, pyrimisulfan, penoxsulam, aminopyralid, bencarbazone, flucetos Luflon (flucetosulfuron), monosulfuron (monosulfuron), monosulfuron-methyl (monosulfuron-methyl), pinoxaden (propoxacarbazone-sodium), pyrasulfoto Pyrasulfotole, pyroxasulfone, pyroxsulam, tembotrione, thiencarbazone-methyl, topramezon, metamitron, esprocarb, bencho curve ( benthiocarb, molinate, dimepiperate, pyributicarb, mefenacet, butachlor, pretilachlor, tenenylchlor, bromobutide, dybutanid, etobenzil ), Cumyluron, bentazone, bentazone salt, 2,4-D, 2,4-D salt, 2,4-D ester, MCP, MCP salt, MCP ester, MCPB, MC B salt, ester of MCPB, phenothiol (MCPA-thioethyl), chromeprop, naproanilide, oxadiazon, pyrazolate, pyrazolfen, benzofenap, oxadiargyl ( oxadiargyl), dimethametryn, simethrin, piperophos, anilofos, butamifos, bensulide, dithiopyr, pyriminobac methyl, C, N (Chlormethoxynil), cyhalofop butyl, bifenox, caffenstrole, pentoxazone, indanofan, oxaziclomefone, ph Fentrazamide, butenachlor, ACN, benzobicyclon, benfuresate, cimmethylin, simazine, dichlobenil, diuron, chloro IPC (chlorpropham), Atrazine, alachlor, isouron, chlorphtalim, cyanazin, trifluralin, butamifos, propyzamide, promethrin, pendimethalin ( pendimethalin, metolachlor, metribuzin, linuron, lenacil, propanil, MCPA, ioxynil octanoate, asuram, quizalofopue Chill (quizalofop-ethyl), propaquizafop, quizalofop-tefuryl, sethoxydim, thifensulfuron-methyl, fenoxaprop-ethyl, Phenmedipham, fluazifop-butyl, bentazone, SAP (bensulide), TCTP (chlorthal-dimethyl, tetorachlorothiophene), amiprophosmethyl, amethrin, isoxaben (Isoxaben), olbencarb (orbencarb), karbutilate, dithiopyr, siduron, thiazafluron, napropamide, prodiamine, besene (benefin), methyl dymron ), 2,4-PA, CPPA, flazasulfuron, metsulfuron-methyl, imazaquin, imazapyr, flupropanate, tebuthiuron, bromacil, hexazinone, glyphosammonium Salt (glyphosate-ammonium), glyphosate-iso-propylammonium, glyphosate-trimesium, glyphosate-sodium, glyphosate-potassium, bialaphos ), Glufosinate-ammonium and MCC.

  Bactericides: acibenzolar (generic name), ampropylphos (ampropyfos / generic name), anilazine (generic name), azaconazole (azaconazole / generic name), azoxystrobin (generic name), Benalaxyl (benalaxyl / generic name), benodanyl (generic name), benomyl (generic name), benzamacril (generic name), binaacryl (binapacryl / generic name), biphenyl (biphenyl / generic name), biteltanol ( bitertanol (generic name), bethoxazine (generic name), Bordeaux liquid (bordeaux mixture / generic name), blasticidin-S (blasticidin-S / generic name), bromoconazole (generic name), bupirimate / Generic name), buthiobate (generic name), calcium polysulfide / general ), Captafol (captafol / generic name), captan (captan / generic name), copper oxychloride (generic name), carpropamid (generic name), carbendazim (generic name), carboxin (Carboxin / generic name), quinomethionat (generic name), clobenthiazone (generic name), chlorfenazol (generic name), chloroneb (generic name), chlorothalonil (generic name) , Clozolinate (chlozolinate / generic name), Cufraneb (cufraneb / generic name), Simoxanil (cymoxanil / generic name), Cyproconazole (cyproconazol / generic name), Cyprodinil (cyprodinil / generic name), Cyprofuram (generic name) , Debacarb (generic name), dichlorophen (general) ), Diclobutrazol (generic name), diclofuranide (diclhlofluanid / generic name), diclomedine (diclomedine / generic name), dicloran (dicloran / generic name), dietofencarb (diethofencarb / generic name), dicrocymet (generic name) Name), difenoconazole (difenoconazole / generic name), diflumetorin (generic name), dimethirimol (generic name), dimethomorph (generic name), diniconazole (generic name), dinicoazole-M (diniconazole-M) / Generic name), dinocap (generic name), diphenylamine (generic name), dipyrithione (generic name), ditalimfos (general name), dithianon (generic name), dodemorph (general name) Name), Dodine (generic name), Dora Xoron (drazoxolon / generic name), edefenophos (generic name), epoxiconazole (generic name), etaconazole (generic name), ethirimol (generic name), etridiazole (generic name), Famoxadone (generic name), fenarimol (generic name), febuconazole (generic name), fenfuram (generic name), fenpiclonil (generic name), fenpropidin (generic name) ), Fenpropimorph (generic name), fentin (generic name), felvan (ferbam / generic name), ferrimzone (ferimzone / generic name), fluazinam (generic name), fludioxonil (generic name) ), Fluoroimide (generic name), fluquinconazo Fluquinconazole (generic name), flusilazole (general name), flusulfamide (generic name), flutolanil (general name), flutriafol (generic name), folpet (generic name) , Fosetyl-aluminium (generic name), fuberidazole (generic name), flaraxyl (general name), fenamidone (generic name), fenhexamid (generic name), guazatine / Generic name), hexachlorobenzene (generic name), hexaconazole (generic name), hymexazol (generic name), imazalil (generic name), imibenconazole (generic name), Iminoctadine (generic name), ipconazole Common name), iprobenfos (generic name), iprodione (generic name), isoprothiolane (common name), iprobalibalb (generic name), kasugamycin (generic name), cresoxim-methyl (kresoxim- methyl / common name), mancopper (mancopper / generic name), manzeb (generic name), manneb (maneb / generic name), mepanipyrim (generic name), mepronil (generic name), metalaxyl / Generic name), metconazole (generic name), metyram (metiram / generic name), metminostrobin (generic name), microbutanil (generic name), nabam (generic name), nickel bis ( Dimethyldithiocarbamate (nickel bis (dimethyldithiocarbamate) / generic name), Nitroter -Isopropyl (nitrothal-isopropyl / generic name), nuarimol (generic name), octhilinone (generic name), off-race (ofurace / generic name), oxadixyl (generic name), oxycarboxin / (Generic name), oxpoconazole fumarate (generic name), pefurzoate (generic name), penconazole (generic name), pencyclon (general name), phthalide (generic name), Piperalin (generic name), polyoxins (generic name), probenazole (generic name), prochloraz (generic name), procymidone (generic name), propamocarb hydrochloride (generic name) , Propiconazole (propiconazole / generic name), propineb / propineb / (Generic name), pyrazophos (generic name), pyrifenox (generic name), pyrimethanil (generic name), pyroquilon (generic name), quinoxyfen (generic name), quintozene / (Generic name), sulfur, spiroxamine (generic name), tebuconazole (generic name), technazene (generic name), tetraconazole (general name), thiabendazole (generic name) , Thifluzamide (generic name), thiophanate-methyl (generic name), thylum (thiram / generic name), tolclofos-methyl (generic name), tolylfluanid (generic name), triazimephone (Triadimefon / generic name), triadimenol / generic name, tria Toxide (generic name), tricyclazole (generic name), tridemorph (generic name), triflumizole (generic name), triforine (generic name), triticonazole (generic name) ), Validamycin (generic name), vinclozolin (generic name), zineb (generic name), ziram (generic name) and oxine-copper (generic name).

  Bactericides: streptomycin (generic name), oxytetracycline (generic name), oxolinic acid (generic name), etc.

  Nematicides: Aldoxycarb (aldoxycarb / generic name), fostiazate (generic name), fosthitanate (generic name), oxamyl (oxamyl / generic name), and fenamiphos (generic name).

  Acaricide: amitraz (generic name), bromopropylate (generic name), chinomethionat (generic name), chlorobezilate (generic name), clofentezine (generic name), Cyhexatine (generic name), dicofol (generic name), dienochlor (dienochlor), etoxazole (generic name), phenazaquin (generic name), fenbutatin oxide (generic name) ), Fenpropathrin (generic name), fenproximate (generic name), halfenprox (generic name), hexythiazox (generic name), milbemectin (generic name) , Propargite (generic name), pyridaben (one Common name), pyrimidifen (generic name) and tebufenpyrad (generic name).

  Insecticides: abamectin (generic name), acephate (generic name), acetamipirid (generic name), azinphos-methyl (generic name), bendiocarb (generic name), benfuracarb (benfuracarb) / Generic name), bensultap (generic name), bifenthrin (generic name), buprofezin (generic name), butcarboxin (generic name), carbaryl (generic name), carbofuran (carbofuran) / Generic name), carbosulfan (generic name), cartap (general name), chlorfenapyr (generic name), chlorpyrifos (generic name), chlorfenvinphos (generic name), Chlorfluazuron (generic name), clothianidin (cloth ianidin (generic name), chromafenozide (generic name), clopyrifos-methyl (generic name), cyfluthrin (generic name), beta-cyfluthrin (generic name), cypermethrin (cypermethrin) / Generic name), cyromazine (generic name), cyhalothrin (generic name), lambda-cyhalothrin (generic name), deltamethrin (generic name), diafenthiuron (generic name) ), Diazinon (generic name), diacloden (diacloden / generic name), diflubenzuron (generic name), dimethylvinphos (generic name), diofenolan (generic name), disulfoton (generic name) ), Dimethoate (generic name), EPN, esfenvalere Esfenvalerate (generic name), etiofencarb (generic name), ethiprole (generic name), etofenprox (generic name), etrimfos (generic name), fenitrothion (generic name), Fenobucarb (fenobucarb / generic name), phenoxy curve (fenoxycarb / generic name), fenpropathrin (fenpropathrin / generic name), fenvalerate (generic name), fipronil (generic name), flucythrinate / (Generic name), flufenoxuron (generic name), flufenprox (generic name), tau-fluvalinate (generic name), fonophos (generic name), formethanate (formetanate) / Generic name), formothion (generic name), furathiocar (Furathiocarb / generic name), halofenozide / generic name, hexaflumuron / generic name, hydramethylnon / generic name, imidacloprid / generic name, isofenphos / generic name , Indoxacarb (generic name), isoprocarb (common name), isoxathion (generic name), lufenuron (generic name), malathion (generic name), metaldehydride (metaldehyde / generic name) , Methamidophos (generic name), methidathion (generic name), methacrifos (generic name), metalcarb (general name), mesomil (generic name), methoprene (generic name), methoxy Chlor (methoxychlor / generic name), methoxyphenozide (methoxy) fenozide (generic name), monocrotophos (generic name), muscarure (generic name), nitenpyram (genenpyram / generic name), ometoate (generic name), oxydemeton-methyl (generic name) , Oxamyl (generic name), parathion (generic name), parathion-methyl (common name), permethrin (generic name), phentoate (generic name), phoxim (general name) Name), phorate (generic name), hosalon (phosalone / generic name), phosmet (generic name), phosphamidon (generic name), pirimicarb (generic name), pirimiphos-methyl (pirimiphos-methyl) / Generic name), profenofos (profenofos / generic name), pymetrozine (pymetrozine / generic name), pyracro (Pyraclofos / generic name), pyriproxyfen (generic name), rotenone (rotenone / generic name), sulprofos (generic name), silafluofen (generic name), spinosad (generic name), Sulfotep (generic name), tebufenozide (generic name), teflubenzuron (generic name), tefluthorin (generic name), terbufos (generic name), terbufos (generic name), tetrachlorvinphos (generic name) Thiodicarb (generic name), thiamethoxam (generic name), thiofanox (generic name), thiometon (generic name), tolfenpyrad (generic name), tralomethrin (generic name) , Trichlorfon (generic name), triazuron Common name), triflumuron (triflumuron / generic name) and vamidothion (vamidothion / generic name), and the like.

  Among the above pesticidal active ingredients, the effects of the present invention are particularly good when amino acid herbicides are used. Amino acid herbicides are non-selective herbicides such as glyphosate, bialaphos and glufosinate and their salts. Preferred amino acid herbicides are glyphosate and its salts.

  Glyphosate, bialaphos and glufosinate are known non-selective herbicides and are generally used in the form of their salts. The salt is not particularly limited as long as it is an organic or inorganic salt and can be used as an agrochemical. For example, an alkali metal salt such as a sodium salt, a potassium salt, or a lithium salt, or an alkaline earth such as a calcium salt. Metal salts, ammonium, isopropylamine salt, trimethylsulfonium salt and the like. Preferred salts are isopropylamine salt, ammonium salt and potassium salt.

  The concentration of glyphosate and its salt is preferably 400 g / L or more, more preferably 440 g / L or more, and further preferably 480 g / L or more in terms of glyphosate acid from the viewpoint of biological effects.

  Examples of the nonionic surfactant of the present invention include the following.

Polyethylene glycol type surfactants: for example, polyoxyethylene alkyl (C _8-18 ) ether, ethylene oxide adduct of alkyl naphthol, polyoxyethylene (mono or di) alkyl (C _8-12 ) phenyl ether, polyoxyethylene Formalin condensate of (mono or di) alkyl ( _C8-12 ) phenyl ether, polyoxyethylene (mono, di or tri) phenyl phenyl ether, polyoxyethylene (mono, di or tri) benzyl phenyl ether, polyoxypropylene (Mono, di or tri) benzyl phenyl ether, polyoxyethylene (mono, di or tri) styryl phenyl ether, polyoxypropylene (mono, di or tri) styryl phenyl ether, polyoxyethylene (moly , Di or tri) styryl phenyl ether polymer, polyoxyethylene polyoxypropylene block polymers, alkyl (C _{8 to 18)} polyoxyethylene polyoxypropylene block polymer ethers, alkyl (C _{8 to 12)} phenyl polyoxyethylene polyoxypropylene Propylene block polymer ether, polyoxyethylene bisphenyl ether, polyoxyethylene resin acid ester, polyoxyethylene fatty acid ( _C8-18 ) monoester, polyoxyethylene fatty acid ( _C8-18 ) diester, polyoxyethylene sorbitan fatty acid ( _C8-18 ) ester, glycerol fatty acid ester ethylene oxide adduct, castor oil ethylene oxide adduct, hydrogenated castor oil ethylene oxide adduct, alkyl (C _8-18 ) amine ethylene oxide adduct and fatty acid ( _C8-18 ) amide ethylene oxide adduct.

Polyhydric alcohol type surfactants: For example, glycerol fatty acid ester, polyglycerin fatty acid ester, pentaerythritol fatty acid ester, sorbitol fatty acid (C _8-18 ) ester, sorbitan fatty acid (C _8-18 ) ester, sucrose fatty acid ester, many Examples thereof include monohydric alcohol alkyl ethers, fatty acid alkanolamides, alkyl glycosides and alkyl polyglycosides.

Other examples include acetylene surfactants, alkanediol surfactants, and silicone surfactants.
The content of the nonionic surfactant can be appropriately selected, and is usually 0.1 to 20 parts by weight, more preferably 0.1 to 10 parts by weight with respect to 100 parts by weight of the liquid composition of the present invention.

Preferred nonionic surfactants are sucrose fatty acid esters, polyoxyethylene alkyl ( _C8-18 ) ethers, alkylglycosides, alkylpolyglycosides, acetylenic surfactants and alkanediol surfactants. More preferred are alkyl glycosides, alkyl polyglycosides, and acetylenic surfactants.

The alkylpolyglycoside used in the present invention has the formula (2):
R ²⁰ O (R ²¹ O) _b (G11) _a (2)
[Where,
R ²⁰ represents a C _6-30 alkyl group, a C _6-30 alkenyl group, a C _6-30 alkynyl group or a C _6-30 alkylphenyl group,
R ²¹ represents a C _2-4 alkylene chain,
G11 represents 5 monosaccharide residues or 6 monosaccharide residues,
b represents a number from 0 to 12,
a represents a numerical value of 1 to 10. ] Is represented.

Preferred alkyl polyglycosides are:
An alkylpolyglycoside in which G11 is a glucose residue and b is 0 in formula (2);
An alkylpolyglycoside in which R ²⁰ is a C _6-30 alkyl group or a C _6-30 alkenyl group in formula (2);
In the formula (2), R ²⁰ is an alkyl group having a chain length of C ₆ , C ₈ , C ₁₀ , C ₁₂ , C ₁₄ , C ₁₆ or C ₁₈ , or C ₆ , C ₈ , C ₁₀ , C ₁₂ , Alkyl polyglycosides that are alkenyl groups having a chain length of C ₁₄ , C ₁₆ or C ₁₈ , and alkyl polyglycosides consisting of mixtures thereof,
In formula (2), an alkylpolyglycoside in which (G11) _a is an average of 1 to 10 sugar residues bonded to each other by _a glycosidic bond,
In the formula (2), (G11) _a may be composed of sugar residues of different types of reducing sugars, the alkyl polyglycoside whose sugar residue is glucose or maltose, and in the formula (2): A representing the number of sugar residues is a statistical average based on typical distributions, particularly suitable include an average of 1 to 5 sugar molecules per alkyl group, more preferably 1 to 5 In particular, the average degree of polymerization of the glycoside residues of at least one alkyl polyglycoside is from about 1 to about 1.8, and of these surfactants, more preferably C _6-14 Examples include alkyl polyglycosides having an alkyl group with a chain length.

  Examples of the acetylene-based surfactant of the present invention include acetylene alcohol, acetylenic diol, and a surfactant obtained by adding an alkylene oxide thereto.

As an example of acetylene alcohol, HOCR ¹ R ² —C≡CH [R ¹ and R ² each represents an alkyl group having 1 to 8 carbon atoms. And the like. Preferably, R ¹ is a methyl group, R ² is an isobutyl group, or R ¹ and R ² are methyl groups, R ¹ is a methyl group, and R ² is an ethyl group.

As an example of acetylene diol, HOCR ¹ R ² —C≡C—CR ¹ R ² OH [R ¹ and R ² may be the same or different and each represents an alkyl group having 1 to 8 carbon atoms. And the like. Preferably, R ¹ is methyl, R ² is ethyl, R ¹ is methyl, R ² is isobutyl, R ¹ and R ² are methyl, R ¹ is methyl, R ² Is an isopentyl group.

  Examples of the surfactant obtained by adding alkylene oxide to these include compounds obtained by adding ethylene oxide or / and propylene oxide to the above acetylene alcohol and acetylene diol.

  The upper limit of the HLB of the acetylene surfactant is preferably 12 or less, more preferably 10 or less, still more preferably 8 or less, still more preferably 6 or less, and most preferably 4 or less. The lower limit of the HLB of the acetylene surfactant is not limited, but is preferably 2 or more, more preferably 4 or more.

  Examples of the alkanediol surfactant of the present invention include those having a structure in which the acetylene portion of the acetylene diol is hydrogenated, and compounds in which an alkylene oxide is added thereto.

  The liquid composition of the present invention may further contain auxiliary agents such as cationic surfactants, anionic surfactants, amphoteric surfactants and chelating agents as other auxiliary agents.

  One preferred adjuvant is a cationic surfactant. As used herein, “cationic surfactant” means any surfactant having a positively charged group or a group that can acquire a positive charge upon protonation, and includes amphoteric surfactants and zwitterions. A surfactant.

  Suitable types of cationic surfactants include primary, secondary and tertiary alkylamines, primary, secondary and tertiary alkylaminium salts (where the amine group is substantially protonated in the formulation) ), Onium salts such as quaternary alkyl ammonium salts, and mixtures thereof. A wide range of primary, secondary, tertiary and zwitterionic alkylamine and quaternary alkylammonium salt surfactants can be utilized in the practice of this invention. Anions suitable for combination with the cationic surfactants of the present invention include chloride anions, hydroxide anions, glyphosate anions, sulfate anions, and phosphate anions.

  Preferred primary, secondary and tertiary alkylamine surfactants for use in the present invention are tertiary polyoxyalkylene alkylamines and tertiary polyoxyalkylene alkyl ether amines.

  Preferred zwitterionic or amphoteric alkylammonium surfactants for use in the present invention are amino acid derivatives such as glycine, β-alanine and aspartic acid having alkyl, dialkyl or alkyl lower alkyl.

  Preferred alkyl ammonium salts are quaternary alkyl ammonium salts. Quaternary alkylammonium salts useful in the present invention include quaternized (eg, N-methyl) alkylamines, quaternized polyoxyalkylene alkylamines, quaternary salts of pyridines, quaternary salts of carboxylated imidazolines. (Open and closed), and trialkylbetaines. Trialkylamine oxides form a quaternary ammonium hydroxide salt when added to water and are a useful class of compounds in the practice of this invention.

  Preferred quaternary alkyl ammonium salts for use in the present invention include alkyl lower alkyl di (hydroxy lower alkyl) ammonium chlorides, dialkyl di (lower alkyl) ammonium chlorides, alkyl tri (lower alkyl) ammonium chlorides, carboxymethylated imidazolines and Alkyl di (lower alkyl) betaine. Particularly preferred are dialkyldimethylammonium chloride and alkyltrimethylammonium chloride.

Examples of quaternary ammonium salts suitable for use in the present invention are illustrated below but are not limited thereto.
1. Quaternized long chain amines:
a) Alkyltri (lower alkyl) ammonium chloride i) Trimethylcocoammonium chloride (coco: C _12-15 alkyl)
ii) trimethyloctadecylammonium chloride b) dialkyldi (lower alkyl) ammonium chloride i) dimethyldioctadecylammonium chloride2. Quaternized polyoxyalkylene long chain amines:
a) dialkyldi (hydroxyethyl) ammonium chloride i) methylbis (2-hydroxyethyl) cocoammonium chloride ii) methylbis (2-hydroxyethyl) laurylammonium chloride iii) methylbis (2-hydroxyethyl) oleylammonium chloride b ) Alkyl di (polyoxyethylene) lower alkyl ammonium chloride i) Methylbis (ω-hydroxypolyoxyethylene) cocoammonium chloride (wherein polyoxyethylene is derived from 3 to 20 moles of ethylene oxide)
ii) methyl bis (ω-hydroxypolyoxyethylene) oleyl ammonium chloride where polyoxyethylene is derived from 3 to 20 moles of ethylene oxide
c) Hydroxyalkyl polyoxyethylene di (lower alkyl) ammonium chloride i) Hydroxyethyl dimethyl polyoxyethylene (2 mol) ammonium chloride d) Alkyl tri (polyoxyethylene) ammonium phosphate i) Lauryl tripolyoxyethylene ammonium phosphate
3. Quaternized pyridines:
i) N-octylpyridine chloride ii) N-dodecylpyridine chloride Quaternized carboxylated imidazolines (closed and open chain):
i) N-carboxymethyl-N-aminoethylundecylimidazoline ii) N-carboxy-N-hydroxyethylundecylimidazoline iii) N-carboxymethyl-N-aminoethyl- (N ′, N′-dicarboxymethyl) Undecylimidazoline iv) N-carboxymethyl-N- (carboxymethoxy) ethyl undecylimidazoline v) N-carboxymethyl-N-hydroxyethylheptadecylimidazoline vi) N-carboxymethyl-N-hydroxyethylundecylimidazoline
5. Trialkylbetaine:
a) alkyldi (lower alkyl) betaines i) lauryldimethylbetaine ii) stearyldimethylbetaine iii) cocodimethylbetaine iv) decyldimethylbetaine Amine oxide:
a) alkyldi (lower alkyl) amine oxide i) lauryldimethylamine oxide ii) stearyldimethylamine oxide b) di (hydroxyethyl) alkylamine oxide i) di (hydroxyethyl) octylamine oxide ii) di (hydroxyethyl) dodecylamine Oxide iii) di (hydroxyethyl) tallow amine oxide c) di (polyhydroxyethylene) alkyl amine oxide i) bis (ω-hydroxypolyoxyethylene) tallow amine oxide d) lower alkyl polyoxyethylene alkyl amine oxide i) methyl poly Oxyethylene (2 mol) cocoamine oxide.

  The chelating agent that can be used in the present invention is not particularly limited as long as it has a chelating effect.For example, EDTA, NTA, HEDTA, DTPA, TTHA, PDTA, DPTA-OH, HIDA, DHEG, GEDTA, HEDP, NTMP, PBTC Oxalic acid, succinic acid, glycine, malic acid, citric acid, glycolic acid, gluconic acid, heptonic acid, tartaric acid, and salts thereof (sodium salt, potassium salt, etc.).

  Although the total amount of the chelating agent that can be contained in the liquid composition of the present invention is not particularly limited, it is usually 0.005 to 0.5 parts by weight, preferably 0.05 to 0.00 parts per 1 part by weight of the pesticidal active ingredient. 2 parts by weight.

  The organic solvent used in the present invention is dipropylene glycol, N-methylpyrrolidone, 2-methoxyethanol, ethanol, butanediol (for example, 1,3-butanediol, 1,4-butanediol, and 2,3-butanediol). , Diethylene glycol monomethyl ether, 1,5-pentanediol and triethylene glycol monoethyl ether. Preferred organic solvents are selected from N-methylpyrrolidone, 2-methoxyethanol, ethanol, 1,3-butanediol, 2,3-butanediol, diethylene glycol monomethyl ether, 1,5-pentanediol and triethylene glycol monoethyl ether One or more types. By containing these organic solvents in the liquid composition, the viscosity of the liquid composition is lowered, and handling properties are improved. In the present invention, in addition to these organic solvents, one or more other organic solvents can be further contained.

  The content of the organic solvent is preferably 1 part by weight or more, more preferably 2 parts by weight or more, and further preferably 2.5 parts by weight or more with respect to 100 parts by weight of the liquid composition.

  In addition, a liquid composition containing an amino acid herbicide, a nonionic surfactant and an organic solvent has a cloud point because the solubility of the nonionic surfactant decreases as the content of the amino acid herbicide increases. descend. When the temperature rises above the cloud point, the nonionic surfactant cannot be dissolved and becomes cloudy. After a while, it separates, and even if the temperature is lowered, it does not become uniform without stirring. Therefore, from the viewpoint of storage stability at high temperatures, the cloud point of the liquid composition is preferably 55 ° C. or higher, more preferably 70 ° C. or higher, and further preferably 100 ° C. or higher.

  In order to increase the cloud point of a liquid composition containing an amino acid herbicide, butanediol and propylene glycol may be used in combination as an organic solvent. The content of propylene glycol is usually 0.25 parts by weight or more, preferably 0.5 parts by weight or more with respect to 1 part by weight of butanediol. The content of propylene glycol is preferably 0.8 parts by weight or more, more preferably 1 part by weight or more with respect to 100 parts by weight of the liquid composition. As the butanediol, 1,4-butanediol is preferable.

  The liquid composition of the present invention can be used to control various pests. The case where the pesticidal active ingredient is an amino acid herbicide will be described below.

  The liquid composition containing the amino acid herbicide of the present invention can be applied to plants in a herbicidally effective amount, without limitation, one or more of the following genera: Abutilon, Amaranthus, Artemisia, Asclepias, Avena, Axonopus, Borreria, Brachiaria , Brassica, Bromus, Chenopodium, Cirsium, Commelina, Convolvulus, Cynodon, Cyperus, Digitaria, Echinochloa, Eleusine, Elymus, Equisetum, Erodium, Helianthus, Imperata, Ipomoea, Kochia, Lolium, Malva, Orya, Maltt, Orya One or more plant species can be effectively controlled, Phragmites, Polygonum, Portulaca, Pteridium, Pueraria, Rubus, Salsola, Setaria, Sida, Sinapis, Sorghum, Triticum, Typha, Ulex, Xanthium and Zea.

  Particularly important annual dicotyledons in which the liquid composition containing the amino acid herbicide of the present invention is used are exemplified below without limitation: Abutilon theophrasti, Amaranthus, Amaranthus, Borreria Species), Rapeseed, etc. (Brassica species), Dutch Fuuro (Erodium species), Sunflower (Helianthus species), Japanese morning glory (Ipomoea species), Japanese cypress (kochia), Zeniaoi (Malva species), Tade et al (Polygonum species), Siberian (Portulaca) Species), Russian thistle (Salsola species), King deer (Sida species), Noragarashi (Sinapis species), Japanese fir (Xanthium species), American dungweed (Bidens species) and Shiroza species (Chenopodium species).

  Particularly important annual monocotyledons in which the liquid composition containing the amino acid herbicide of the present invention is used are exemplified below without limitation: oat fat (Avena fatua), carpetgrass (Axonopus sp.), Umanohachiki (Downy brome) (Bromus tectorum), Bark beetle (Digitaria species), Barnyard grass (Echinochloa crus-galli), Barnyard grass (Eleusine indica), Ryegrass (Lolium species), Rice (Oryza sativa), Ottochloa (Ottochloa nodosa) , American spider (bahiagrass) (Paspalum spp.), Enocorogusa (foxtail) (Setaria spp.), Brachiaria (Brachiaria spp.), Vulgaris (Poa spp.), Commelina spp (Commelina spp.) Wheat (Triticum aestivum) and Corn ).

  Particularly important perennial dicotyledons in which the liquid composition containing the amino acid herbicide of the present invention is used are exemplified without limitation: mugwort (Artemisia species), milkweed (Asclepias species), Ezo fox thistle (Cirsium arvense), Atlantic convolvulus (Convolvulus arvensis), Kudu (Pueraria spp.), Solidago spruce (Solidago spp.), White clover (Trifolium spp.), And Phytolacca spp.

  Particularly important perennial monocotyledons in which the liquid composition containing the amino acid herbicide of the present invention is used are exemplified below without limitation: Cynodon dactylon, yellow nutsedge (Cyperus esculentus), Green nutsedge (C. rotundus), quackgrass (Elymus repens), chilanga (lalang) (Imperata cylindrica), perennial ryegrass (Lolium perenne), guineagrass (Panicum maximum), dalisgrass (Paspalum dilatatum) (Reed) (Phragmites species), Johnson Grass (Sorghum halepense), Reed Canary Grass (Phalalis species) and Catfish (Typha species).

  Other particularly important perennial species in which the liquid composition containing the amino acid herbicide of the present invention is used are exemplified below without limitation: horsetail (Equisetum species), bracken (Pteridium aquilinum), black Blackberry (Rubus species) and gorse (Ulex europaeus).

  The liquid composition containing the amino acid-based herbicide of the present invention exhibits an excellent effect particularly in controlling glyphosate difficult-to-control weeds such as horsetail, white clover, camellia, and smelt.

  The liquid composition of the present invention comprises an agrochemical active agent component, a nonionic surfactant, an organic solvent, and further, if desired, an appropriate liquid carrier, other surfactant, thickener, antifreezing agent, antifoaming agent, Add adjuvants such as preservatives, coloring agents, chelating agents, stabilizers and anti-degradation agents to add emulsion, emulsifiable concentrate, soluble concentrate, aqueous suspension concentrate, suspoemulsion ( suspoemulsion) and other liquid preparations. A preferred liquid formulation is a liquid formulation.

  The liquid carrier that can be used in the present invention is preferably water.

  The liquid composition of the present invention is preferably a liquid agent, and can be produced by mixing an agrochemical active ingredient, a nonionic surfactant, an organic solvent, other auxiliary agents, and the like with water or the like and uniformly dissolving them.

  The thickener that can be used in the present invention is not particularly limited, and organic, inorganic natural products, synthetic products, and semi-synthetic products can be used, and examples thereof include heterogeneous products such as xanthan gum (xanthan gum), welan gum, and lamb gum gum. Synthetic water-soluble polymer compounds such as polysaccharides, polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylic acid, sodium polyacrylate and polyacrylamide, cellulose derivatives such as methylcellulose, carboxymethylcellulose, carboxyethylcellulose, hydroxyethylcellulose and hydroxypropylcellulose, montmorillonite, Smectites such as saponite, hectorite, bentonite, pendelite, nontronite, saucolite, steppenside, laponite and synthetic smectite Mention may be made of the soil minerals. These thickeners may be used singly or in combination, and the ratio in the case of mixing can be freely selected. These thickeners may be added as they are, or those previously dispersed in water may be added. Moreover, the addition amount at the time of adding to the composition of this invention can also be selected freely.

  Examples of antifoaming agents that can be used in the present invention include silicone emulsion antifoaming agents.

  Antioxidants are suitable as stabilizers that can be used in the present invention, such as disodium ethylenediaminetetraacetate, disodium ethylenediaminetetraacetate, erythorbic acid, sodium erythorbate, isopropyl citrate, dibutylhydroxytoluene, Butyl hydroxyanisole, propyl gallate, ascorbic acid, ascorbic acid stearate, sodium ascorbate, ascorbyl palmitate, dl-α-tocopherol, sodium sulfite, sodium hyposulfite, potassium sulfite, potassium hyposulfite, sulfur dioxide, Examples include potassium pyrosulfite and sodium pyrosulfite.

  In use, the liquid composition is diluted 1 to 10,000 times with water or sprayed without dilution.

[Test Example 1] Measurement of viscosity The components shown in Tables 1, 2 and 3 were mixed at room temperature to obtain a clear and uniform composition. 40 ml of the composition was placed in a 50 ml glass container and placed in a constant temperature water bath at 5 ° C. and 25 ° C. and left for 1 hour. When the temperature became constant, the viscosity was measured using a Brookfield viscometer (DV-III manufactured by Brookfield). In the measurement, a spindle LV2 was used, and the rotation speed was 30 rpm. The results are shown in Tables 1, 2, and 3.

[Test Example 2] Measurement of cloud point The components shown in Tables 1, 2 and 3 were mixed at room temperature to obtain a uniform composition. Place 5 ml of the composition in an 8 ml glass container, cover and seal, and put in a 25 ° C constant temperature water bath, 50 ° C, 55 ° C, 60 ° C, 70 ° C, 80 ° C, 90 ° C, 100 ° C oven for 1 hour. I left it alone. When the temperature became constant, the presence or absence of turbidity or separation was visually evaluated. The lowest temperature at which turbidity or separation was observed was taken as the cloud point. The results are shown in Tables 1, 2, and 3.

  The liquid composition of the present invention can be used for pest control.

Claims (14)

In a liquid composition comprising an agrochemical active ingredient, a nonionic surfactant and an organic solvent, the nonionic surfactant is an alkylpolyglycoside, and the organic solvent is selected from the group consisting of butanediol and 1,5-pentanediol. 1 or more types of liquid composition characterized by the above-mentioned . The liquid composition according to claim 1, wherein the organic solvent is butanediol. The liquid composition according to claim 1 or 2, wherein the agrochemical active ingredient is an amino acid herbicide. The liquid composition according to claim 3 , wherein the organic solvent is butanediol and further contains propylene glycol as another organic solvent. The liquid composition according to claim 4 , wherein the propylene glycol is 0.25 parts by weight or more with respect to 1 part by weight of butanediol. The liquid composition according to claim 4 , wherein the propylene glycol is 0.8 parts by weight or more with respect to 100 parts by weight of the liquid composition. The liquid composition according to any one of claims 2 to 6 , wherein the butanediol is 1,4-butanediol. The liquid composition according to any one of claims 3 to 7, wherein the amino acid herbicide is at least one selected from the group consisting of glyphosate, bialaphos, glufosinate and salts thereof. The composition according to any one of claims 3 to 7, wherein the amino acid herbicide is at least one selected from the group consisting of glyphosate and a salt thereof. The composition according to claim 9 , wherein the concentration of one or more selected from the group consisting of glyphosate and a salt thereof is 440 g / L or more in terms of equivalent amount of glyphosate.   The liquid composition according to any one of claims 1 to 10, further comprising a liquid carrier.   The liquid composition according to claim 11, wherein the liquid carrier is water. In a liquid composition containing an agrochemical active ingredient, a nonionic surfactant and an organic solvent, an alkylpolyglycoside is used as the nonionic surfactant, and the organic solvent is selected from the group consisting of butanediol and 1,5-pentanediol. A method of reducing the viscosity of a liquid composition by using more than one seed . The method for reducing the viscosity of a liquid composition according to claim 13, wherein the organic solvent is butanediol.