Ternary herbicidal composition containing sulfonepyraclostrobin and application thereof

Abstract

The present invention belongs to the field of pesticides, and specifically relates to a ternary herbicidal composition containing sulfonepyraclostrobin and its application. The ternary herbicidal composition comprises an active ingredient A, an active ingredient B and an active ingredient C in herbicidal effective amounts, wherein the active ingredient A is sulfonepyraclostrobin; the active ingredient B is isoxathiapiprolin; and the active ingredient C is selected from one or more of the following compounds: bispyribac and benzazolpyruvate. The composition can effectively prevent and kill common weeds in crop fields, and has the characteristics of expanding the weed control spectrum, reducing the application amount, being safe for crops, being able to produce synergistic effects and solving resistant weeds.

Description

[0001] This application is a divisional application of a Chinese invention patent application filed on December 14, 2018, with application number 201811536381.X, and invention name “Ternary herbicide composition containing sulfonepyraclostrobin and its application”. Technical Field

[0002] The invention belongs to the field of pesticides, and particularly relates to a ternary herbicidal composition comprising pyraclostrobin and an application thereof. Background Art

[0003] Chemical weed control is the most economical and effective means of weed control in farmland. However, the long-term continuous and high-dose use of a single variety or a single mode of action of chemical herbicides can easily cause problems such as weed resistance and resistance evolution.

[0004] The chemical structure of Pyroxasulfone is It is a new type of herbicide that can effectively control grass and broadleaf weeds in wheat, corn and soybean fields.

[0005] Reasonable compounding or mixing of herbicide compounds has the advantages of expanding the weed spectrum, improving the control effect, delaying the occurrence and development of weed resistance and drug resistance, etc., and is one of the most effective ways to solve the above problems. Therefore, it is urgent to develop a variety of herbicide combination with high safety, wide weed control spectrum, synergistic effect and solution to the problem of resistant weeds. Summary of the invention

[0006] In order to solve the above problems existing in the prior art, the present invention provides a ternary herbicide composition containing sulfonepyraclostrobin and its application. The composition can effectively control common weeds in crop fields, has the characteristics of expanding the weed control spectrum, reducing the application amount, being safe for crops, being able to produce synergistic effects and solving resistant weeds, etc.

[0007] A ternary herbicidal composition containing sulfonepyraclostrobin comprises an active ingredient A, an active ingredient B and an active ingredient C in herbicidally effective amounts, wherein:

[0008] Active ingredient A is sulfonepyraclostrobin (CAS No.: 447399-55-5);

[0009] The active ingredient B is isoxathiapiprolin (CAS No.: 141112-29-0) or triazosulfuron (CAS No.: 1911613-97-2);

[0010] The active ingredient C is selected from one or more of the following compounds: mesotrione (CAS No.: 104206-82-8), bispyribac-im (CAS No.: 1622908-18-2), fenpyrotone (CAS No.: 1992017-55-6), oxadiazon (CAS No.: 19666-30-9), cyclohexadione (CAS No.: 110956-75-7), bispyribac-im (CAS No.: 158353-15-2) and oxyfluorfenamide (CAS No.: 42874-03-3).

[0011] Among them, the weight ratio of A, B and C is 0.1-200:0.1-200:0.1-200 and 0.5-200:0.5-200:0.5-200; preferably 1-120:1-180:1-180 and 5-100:5-160:5-160; more preferably 10-90:8-100:10-100 and 20-80:10-40:30-60.

[0012] The mass percentage of A, B and C in the herbicidal composition accounts for 1-95% of the total amount, preferably 10-80%.

[0013] The herbicidal composition further comprises conventional adjuvants, which include carriers and surfactants.

[0014] The term "carrier" herein refers to an organic or inorganic, natural or synthetic substance. They facilitate the application of the active ingredient. The carrier is generally inert and must be agriculturally acceptable, especially to the treated plants. The carrier can be solid, such as clay, natural or synthetic silicates, silicon dioxide, resins, waxes, solid fertilizers, etc.; or liquid, such as water, alcohols, ketones, petroleum fractions, aromatic or waxy hydrocarbons, chlorinated hydrocarbons, liquefied gas, etc.

[0015] Surfactants may include emulsifiers, dispersants or wetting agents and may be ionic or nonionic. Examples which may be mentioned are salts of polyacrylic acid, lignin sulfonates, salts of phenolsulfonic acid or naphthalenesulfonic acid, polymers of ethylene oxide with aliphatic alcohols or with aliphatic acids or with aliphatic amines and with substituted phenols (especially alkylphenols or arylphenols), sulfosuccinates, taurine derivatives (especially taurine alkyl esters) and phosphoric acid esters of alcohols or polyhydroxyethylated phenols, alkylsulfonates, alkylarylsulfonates, alkyl sulfates, lauryl ether sulfates, fatty alcohol sulfates, and sulfated hexadecyl, heptadecanol and octadecyl alcohols and sulfated fatty alcohol glycol ethers, furthermore, naphthalene or naphthalenesulfonic acid with phenol and formaldehyde. Condensates, polyoxyethylene octylphenyl ethers, ethoxylated isooctylphenols, octylphenols or nonylphenols, alkylphenyl polyglycol ethers, tributylphenyl polyglycol ethers, tristearylphenyl polyglycol ethers, alkylaryl polyether alcohols, alcohol and fatty alcohol / ethylene oxide condensates, ethoxylated castor oils, polyoxyethylene alkyl ethers, ethoxylated polyoxypropylenes, lauryl alcohol polyglycol ether acetals, sorbitol esters, lignin sulfite waste liquors, and proteins, denatured proteins, polysaccharides (e.g., methylcellulose), hydrophobically modified starches, polyvinyl alcohols, polycarboxylates, polyalkoxylates, polyvinylamines, polyvinylpyrrolidones and copolymers thereof. The presence of at least one surfactant is required to facilitate the dispersion of the active ingredients in water and to facilitate their correct application to plants.

[0016] The above compositions may also contain various other components such as protective colloids, binders, thickeners, thixotropic agents, penetrants, stabilizers, chelating agents, dyes, colorants and polymers.

[0017] In addition, the ternary composition of the present invention can be mixed with the following active substances, such as the known substances in "World New Pesticide Variety Technology Encyclopedia", China Agricultural Science and Technology Press, 2010.9 and the literature cited herein. For example, the following herbicide active substances are mentioned (Note: the name of the compound is either the common name according to the International Organization for Standardization (ISO) or the chemical name, with a code when appropriate): acetochlor, butachlor, alachlor, isopropylamine, isopropylamine, s-isopropylamine, pretilachlor, cypermethrin, cypermethrin, naphthiachlor, R-(l-)naphthiachlor, propanil, mefenacet, bisbencarb, fluazifop, flufenac, dimethoate, flumethoate, bromomethoate, dimethoate, dimethoate, high-efficiency dimethoate, ethoxybencarb, flumethoate, methoxyfenacet, metazachlor, isopropylamine, high-efficiency methachlor, high-efficiency methachlor propyl, dimethoate, pethoxydim, butyral Amine, cyproconazole, flusulfuronamide, heptanoylamine, isobutachlor, propargylamine, terbutachlor, dimethylbenzene, dimethoate, chlorfenapyr, trimethylcyclohexane, chlorfenapyr, chlorfenapyr, valerylbenzamid, carbam, new Yanling, tricyclic chlorfenapyr, butenesulfonamide, chlorfenapyr, quinone, benflusulfuron, naphthamide, acetoacetamide, naphthamide, thiamethoxam, cypermethrin, benfoampyr, benfoampyr, chlorfenapyr, chlorfenapyr, chlorfenapyr, fluazifop, atrazine, simazine, promethazine, cyanamide, simethazine, amethoxam, promethazine, isopropylamine, fluazifop, terbutylamine, terbutylazine, triazine fluazifop, cyproconazole, ganpozine, grass dazine, promethazine, simazine, azidochlor, dichlorvos 、Isopropylethyl, cyprocyanidin, metsulfuron, another butyl, sec-butyl, terbutalone, methoxypropyl, cyanamide, inhibitor of grass, colazine, atrazine, metsulfuron, glycyrrhizin, cyanuric acid, Indaziflam, chlorsulfuron, metsulfuron-methyl, bensulfuron-methyl, chlorimuron-methyl, bensulfuron-methyl, thiosulfuron-methyl, pyrazosulfuron-methyl, methyl disulfuron-methyl, methyl iodosulfuron sodium salt, formamidosulfuron-methyl, ethersulfuron-methyl, etherbensulfuron-methyl, sulfuron-methyl, nicosulfuron, ethametsulfuron-methyl, acylamidosulfuron-methyl, ethoxysulfuron-methyl, cyprosulfuron-methyl, sulfonesulfuron-methyl, tetrazosulfuron-methyl, flazasulfuron-methyl, monosulfuron, monosulfuron, fluazsulfuron-methyl, fluazsulfuron-methyl, epoxysulfuron-methyl, azole pyrazosulfuron-methyl, primisulfuron-methyl, propensulfuron-methyl, Trifloxysulfuron, Sulfonylsulfuron, Trifloxysulfuron, Flumethosulfuron, Trifloxysulfuron, Metsulfuron Sodium, Flumethosulfuron, Metsulfuron-methyl, Pyrimidinesulfuron, Propyrisulfuron (Propyrisulfuron), Pyrimidinesulfuron, Acifluorfen, Fomesulfuron, Lactofen, Fluazifop-butyl, Oxyfluorfen, Cyclohexan, Benthiocarb, Ethyl Cyanosulfuron, Methiosulfuron, Trifloxysulfuron, Trifloxysulfuron, Trifloxysulfuron, Trifloxysulfuron, Trifloxysulfuron, Halosafen, Chlorotoluron, Isoproturon, Liuron, Diuron, Sapuron, Fluorourazone, Benthiocarb, Methyl Benthiocarb, Benthiocarb,Sulfurthiocarb, Isoxuron, Terbuthiuron, Clodinthiocarb, Chlorbrom, Methylthiocarb, Acetocarb, Methoxythiocarb, Bromothiocarb, Methoxythiocarb, Chlorthiocarb, Methiocarb, Cyclothiocarb, Fenthiocarb, Fluthiocarb, Cyclo ... lam, BCPC, CPPC, Carbasulam, Butyl, Cyclocarb, Cyclocarb, Cyclocarb, Wild Wheat, Piperidin, Cyclocarb, Echinochloa, Cyclocarb ... 4-chlorobutyric acid, 2,4,5-dichlorobutyric acid, 2,4,5-dichlorobutyric acid, 2-methyl-4-chloroamine salt, dicamba, cypermethrin, fumarate, cypermethrin, trichlorobenzoic acid, ammonia dichlorobenzoic acid, methoxy trichlorobenzoic acid, diclofenac, fluazifop-p-butyl, fluazifop-p-butyl, high-efficiency fluazifop-p-butyl, quizalofop-p-butyl, quinazolin-p-butyl, oxadiazol-p-butyl, oxadiazol-p-butyl, cyhalofop-p-butyl, oxadiazol-p-butyl, cyhalofop-p-butyl, oxadiazol-p-butyl, cyhalofop-p-butyl, oxadiazol-p-butyl, cyhalofop-p-butyl, oxadiazol-p-butyl, cyhalofop-p-butyl, oxadiazol-p-butyl, cyhalofop-p-butyl, oxadiazol-p-butyl, cyhalofop-p-butyl, oxadiazol-p-butyl, cyhalofop-p-butyl, oxadiazol-p-butyl, chlorfenapyr, chlorfenapyr, chlorfenapyr, chlorfenapyr, methalpropal in, propanediol, glyphosate, safflower, glufosinate, methylamine glufosinate, glufosinate sulfide, piperphosinate, bialaphos, dimethoate, oxazolidinone, chlorpyrifos, vinegrass, falcon, dimethylaminophosphine, oxazolidinone, imazapic acid, imazapic acid, imazapic acid, methoxyimazapic acid ammonium salt, imazapic acid, imazapic acid, clofopyralid, clofopyralid isooctyl, diclopyralid, aminopyralid, triclopyralid, fluthiopyr, halofopyr, triclopyralid, thiopyralid, fluazifop, clofopyralid, fluazifop, fluazifop, triclopyralid butoxyethyl, Cliodinate, sethoxydim, clethodim, cypermethrin, chlorpyrifos, cyclohexanone, butyroxenone, oxathiophene, pyraclostrobin, Buthidazole, methicillin,Hexazinone, Metamitron, Ethylmetazoxone, Ametridione, Amibuzin, Bromoxynil, Octanoyl Bromoxynil, Octanoyl Iodobenzonil, Iodobenzonil, Dichlobenil, Diphenylacetonitrile, Dipyridoxil, Hydroxychlorpyrifos, Iodobonil, Sulfonamide, Dipyridoxal, Penoxsulam, Sulfonamide, Sulfonamide, Sulfonamide, Dipyridoxal, Dipyridoxal, Dipyridoxal, Fluorosulfuron, Bispyribac-butyl, Cyclopyralid, Pyrimidinesulfuron, Pyrimidinesulfuron, Bispyribac-butyl, Pyrimidinesulfuron, Bispyribac-butyl, Mesotrione, Sulcotrione, Tembotrione, Tefuryltrione, Bicyclopyrone, Ketodpiradox, Isoxaflutole, Isoxachlorpyrifos, Fenoxasulfone, M ethiozolin, isopropylpyraclostrobin, pyrasulfobutyl, pyrazoline, wild yanquat, benzylpyrachlor, pyrazoline, pyrasulfotole, benzylpyrazone, pyroxasulfone, mesotrione, fluazifop, chlorfenapyr, amitriptyline, oxazolidinone, fluazifop, sulfentrazone, Bencarbazone, bispyribac, fluazifop, bromid, isothiocarb, cypermethrin, terfenad, flupropacil, flupropacil, indolone, flufenac, fluazifop, chlorfenapyr, phthalic acid, Flumezin, pentachlorophenol (sodium), dinoseb, teloseb, teloseb, pentachlorophenol, dinitrophenol, chloranil, dinoseb, dinoseb, oxadiazine, oxadiazine, cyclopentane Oxychloride, fluazifop-butyl, flupyridazine-butyl, chlorpyrifos ... , dalapon, trichloroacetic acid, monochloroacetic acid, hexachloroacetone, tetrafluoropropionic acid, grass fast, bromophenol oxime, triazole sulfone, chloranil, furochlor, furochlor, ethyl furochlor, chloranil, chloranil, fluchloralone, barnyard grass, acrolein, benzylpyridinium, benzylpyridinium, avena sativa, thiamethoxam, cotton amine, hydroxythiocarb, methoxybenzone, benzylpyridinium, chloranil, trichloropropionic acid, Al orac, Diethamquat, Etnipromid, Iprymidam, Ipfencarbazone, Thiencarbazone-methyl, Pyrimisulfan, Chlorflurazole, Tripropindan, Sulglycapin, Methylsulfuron, Cambendichlor, Cyprodinil, Thiencarbazone-methyl, Fenpyrimidin ...D489,LS 82-556, KPP-300, NC-324, NC-330, KH-218, DPX-N8189, SC-0744, DOWCO535, D K-8910, V-53482, PP-600, MBH-001, KIH-9201, ET-751, KIH-6127 and KIH-2023. ,

[0018] In the context of the present specification, if the abbreviation of the common name of the active compound is used, all customary derivatives, such as esters and salts, and isomers, in particular optical isomers, in particular one or more commercially available forms are included in each case. If the common name denotes an ester or a salt, all other customary derivatives, such as other esters and salts, free acids and neutral compounds, and isomers, in particular optical isomers, in particular one or more commercially available forms are also included in each case. The chemical name of a compound given denotes at least one compound covered by the common name, generally a preferred compound.

[0019] In the context of the present invention, the salts of the compounds are preferably in the form of the respective alkali metal salts, alkaline earth metal salts or ammonium salts, preferably in the form of the respective alkali metal salts, more preferably in the form of the respective sodium salts or potassium salts, most preferably in the form of the respective sodium salts.

[0020] The herbicidal composition further comprises at least one safener selected from:

[0021] a) dichlorophenylpyrazoline-3-carboxylic acid (S1) compounds, preferred compounds are, for example, 1-(2,4-dichlorophenyl)-5-(ethoxycarbonyl)-5-methyl-2-pyrazoline-3-carboxylic acid ethyl ester (S1-1, mefenpyr-diethyl, PM, pages 594-595), and related compounds described in, for example, WO91 / 07874 and PM (pages 594-595).

[0022] b) Dichlorophenylpyrazolecarboxylic acid derivatives, preferred compounds are, for example, 1-(2,4-dichlorophenyl)-5-methylpyrazole-3-carboxylic acid ethyl ester (S1-2), 1-(2,4-dichlorophenyl)-5-isopropylpyrazole-3-carboxylic acid ethyl ester (S1-3), 1-(2,4-dichlorophenyl)-5-(1,1-dimethyl-ethyl)pyrazole-3-carboxylic acid ethyl ester (S1-4), 1-(2,4-dichlorophenyl)-5-phenylpyrazole-3-carboxylic acid ethyl ester (S1-5), and related compounds described in EP-A-333131 and EP-A-269806.

[0023] c) triazole carboxylic acid (S1) compounds, preferably fenchlorazole, i.e. 1-(2,4-dichlorophenyl)-5-trichloromethyl-(1H)-1,2,4-triazole-3-carboxylic acid ethyl ester (S1-6) and related compounds (see EP-A-174562 and EP-A-346620).

[0024] d) 5-benzyl- or 5-phenyl-2-isoxazoline-3-carboxylic acid compounds or 5,5-diphenyl-2-isoxazoline-3-carboxylic acid compounds, preferably compounds such as 5-(2,4-dichlorobenzyl)-2-isoxazoline-3-carboxylic acid ethyl ester (S1-7) or 5-phenyl-2-isoxazoline-3-carboxylic acid ethyl ester (S1-8) and related compounds described in WO91 / 08202, or 5,5-diphenyl-2-isoxazoline-3-carboxylic acid ethyl ester (S1-9, isoxadifen-ethyl) or 5,5-diphenyl-2-isoxazoline-3-carboxylic acid n-propyl ester (S1-10) or 5-(4-fluorophenyl)-5-phenyl-2-isoxazoline-3-carboxylic acid ethyl ester (S1-11) described in patent application (WO-A-95 / 07897).

[0025] e) 8-quinolinyloxyacetic acid (S2) compounds, preferably 1-methylhexan-1-yl (5-chloro-8-quinolinyloxy) acetate (S2-1, cloquintocet-mexyl, such as PM (pp. 195-196), (1,3-dimethylbutyl-1-yl) (5-chloro-8-quinolinyloxy) acetate (S2-2), 4-allyloxybutyl (5-chloro-8-quinolinyloxy) acetate (S2-3), 1-allyloxyprop-2-yl (5-chloro-8-quinolinyloxy) acetate (S2-4), (5-chloro- 8-quinolyloxy)acetic acid ester (S2-5), (5-chloro-8-quinolyloxy)acetic acid methyl ester (S2-6), (5-chloro-8-quinolyloxy)acetic acid allyl ester (S2-7), 2-(2-propylene iminooxy)-1-ethyl (5-chloro-8-quinolyloxy) acetate (S2-8), 2-oxopropan-1-yl (5-chloro-8-quinolyloxy) acetate (S2-9), and related compounds recorded in EP-A-86750, EP-A-94349 and EP-A-191736 or EP-A-0492366.

[0026] f) (5-chloro-8-quinolyloxy)malonic acid compounds, preferred compounds are, for example, diethyl (5-chloro-8-quinolyloxy)malonate, diallyl (5-chloro-8-quinolyloxy)malonate, methyl ethyl (5-chloro-8-quinolyloxy)malonate and related compounds described in EP-A-0582198.

[0027] g) Phenoxyacetic acid, phenoxypropionic acid or aromatic carboxylic acid active compounds, for example 2,4-dichlorophenoxyacetic acid (and esters) (2,4-D), 4-chloro-2-methylphenoxypropionate (2-methyl-4-chloropropionic acid (mecoprop)), MCPA or 3,6-dichloro-2-methoxybenzoic acid (and esters) (dicamba).

[0028] h) active compounds of the pyrimidine type, for example "fenclorim" (PM, pp. 386-387) (= 4,6-dichloro-2-phenylpyrimidine),

[0029] i) Active compounds from the dichloroacetamide class, which are frequently used as pre-emergence safeners (safeners acting on the soil), for example “dichloromid” (PM, pp. 270-271) (= N,N-diallyl-2,2-dichloroacetamide), “AR-29148” (= 3-dichloroacetyl-2,2,5-trimethyl-1,3-oxazolidinone, available from Stauffer), “benoxacor” (PM, pp. 74-75) (= 4-dichloroacetyl-3,4-dihydro-3-methyl-2H-1,4-benzoxazine), “APPG-1292” (= N-allyl-N[(1,3-dioxolan-2-yl)-methyl]dichloroacetamide, available from PPG Industries), “ADK-24” (=N-allyl-N-[(allylaminocarbonyl)-methyl]-dichloroacetamide, available from Sagro-Chem), "AAD-67" or "AMON4660" (=3-dichloroacetyl-1-oxa-3-aza-spiro[4,5]decane, available from Nitrokemia or Monsanto), "diclonon" or "ABAS145138" or "ALAB145138" (=(=3-dichloroacetyl-2,5,5-trimethyl-1,3-diazabicyclo[4.3.0]nonane, available from BASF), and "furilazol" or "AMON13900" (see PM, 482-483) (=(RS)-3-dichloroacetyl-5-(2-furyl)-2,2-dimethyloxazolidinone),

[0030] j) active compounds from the class of dichloroacetone derivatives, for example, "AMG191" (CAS Reg. No. 96420-72-3) (= 2-dichloromethyl-2-methyl-1,3-dioxolane, available from Nitrokemia),

[0031] k) Active compounds from the class of the oxyimino compounds, which are known as seed dressing materials, for example, "oxabetrinil" (PM, p. 689) (= (Z)-1,3-dioxolan-2-ylmethoxyimino(phenyl)acetonitrile), which is known as a safener in seed dressing to prevent damage by metolachlor, "fluxofenim" (PM, pp. 467-468) (= 1-(4-chlorophenyl)-2, 2,2-Trifluoro-1-ethanone O-(1,3-dioxolan-2-ylmethyl)-oxime, which is used as a safener in seed dressing to prevent damage by metolachlor, and "cyometrinil" or "A-CGA-43089" (PM, page 983) (= (Z)-cyanomethoxyimino(phenyl)acetonitrile), which is used as a safener in seed dressing to prevent damage by metolachlor,

[0032] 1) Active compounds from the class of thiazolecarboxylates, which are known as seed dressing materials, for example "flurazol" (PM, pp. 450-451) (=benzyl 2-chloro-4-trifluoromethyl-1,3-thiazole-5-carboxylate), which is known as a safener in seed dressing to prevent damage by alachlor and isopropylamine,

[0033] m) active compounds from the class of naphthalenedicarboxylic acid derivatives, which are known as seed dressing agents, for example "naphthalenedicarboxylic anhydride" (PM, pp. 1009-1010) (= 1,8-naphthalenedicarboxylic anhydride), which is known as a safener in corn seed dressing to prevent damage by thiocarbamate herbicides,

[0034] n) active compounds of the class of chromaneacetic acid derivatives, for example, "ACL304415" (CAS Reg. No. 31541-57-8) (= 2-84-carboxychroman-4-yl)acetic acid, available from American Cyanamid),

[0035] o) Active compounds which, in addition to their herbicidal action against harmful plants, also act as safeners for crop plants, for example, "dimepiperate" or "AMY-93" (PM, pp. 302-303) (= S-1-methyl-1-phenylethylpiperidine-1-carboxythioate), "daimuron" or "ASK23" (PM, p. 247) (= 1-(1-methyl-1-phenylethyl)-3-p-tolylurea), "benzylpyruvate" or "dimepiperate ... "cumyluron)" = "AJC-940" (= 3-(2-chlorophenylmethyl)-1-(1-methyl-1-phenyl-ethyl) urea, see JP-A-60087254), "methoxyphenon" or "ANK049" (= 3,3'-dimethyl-4-methoxy-benzophenone), "CSB" (= 1-bromo-4-(chloromethylsulfonyl) benzene) (CAS Reg. No. 54091-06-4, available from Kumiai).

[0036] The safener is preferably one or more of isoxadiazine (CAS: 163520-33-0), cyprosulfamide (CAS: 221667-31-8), mefenpyr-butyl (CAS: 135590-91-9), clofodin-mexyl (CAS: 99607-70-2), gibberellic acid (CAS: 7-06-5), furilazole (CAS: 121776-33-8), and metcamifen (CAS: 129531-12-0).

[0037] The composition of the present invention can be diluted or used directly by the user before use. It can be prepared by a common processing method, that is, after mixing the active substance with a liquid solvent or a solid carrier, one or more surfactants such as a dispersant, a stabilizer, a wetting agent, a binder, a defoaming agent, etc. are added.

[0038] The specific formulation of the herbicidal composition is a dispersible oil suspension, an aqueous suspension, a suspoemulsion, a wettable powder, an emulsifiable concentrate, a water dispersible granule, an aqueous emulsion or a microemulsion.

[0039] In short, the compositions of the present invention can be mixed with solid and liquid additives conventionally used in prior art formulations.

[0040] The present invention also provides an application of the ternary herbicidal composition in controlling weeds in crops; and provides a method for controlling unwanted plant growth, which comprises applying the ternary herbicidal composition to plants, plant parts, plant seeds or plant growth areas, preferably for selectively controlling weeds in crops.

[0041] Alternatively, the composition of the present invention can be applied by spraying to the leaves of the plants to be treated, that is, to surfaces infested or susceptible to infestation by weeds, particularly weeds harmful to crop growth.

[0042] When the herbicidal composition of the present invention is applied, an unexpected synergistic effect is obtained, and the herbicidal activity is more significant than the expected sum of the activities of the individual herbicides, and the activity of a single or any two herbicides in combination. The synergistic effect is manifested in reduced application amount, a wider weed control spectrum, faster and more durable herbicidal action, and these characteristics are required in the practice of weed control. In terms of the described characteristics, these new compositions are obviously superior to existing herbicides, achieve reduced use, and are more environmentally friendly.

[0043] The synergistic herbicidal composition of the present invention also has the following advantages:

[0044] (1) The composition of the present invention is environmentally friendly, easily degraded in the environment, and suitable for a variety of crop fields.

[0045] (2) The herbicidal composition of the present invention is low in cost and easy to use, and its popularization and application has huge economic and social benefits. DETAILED DESCRIPTION

[0046] The following examples are not intended to limit the present invention, but are merely intended to illustrate how the present invention is implemented. These examples show particularly significant effectiveness against certain weeds. Examples are as follows:

[0047] A) Embodiment

[0048] 1. Sulfonepyraclostrobin + isoxathiapiprolin + mesotrione aqueous suspension (8+5+12)

[0049] 8% sulfonepyraclostrobin + 5% isoxathiapiprolin + 12% mesotrione + 0.2% citric acid + 4% phenethylphenol polyoxyethylene ether phosphate triethanolamine salt + 1.5% fatty alcohol polyoxyethylene ether + 2% polycarboxylate dispersant + 0.16% xanthan gum + 1.5% magnesium aluminum silicate + 0.1% defoamer + 4% ethylene glycol + water to make up

[0050] 2. Sulfonepyraclostrobin + isoxathiapiprolin + bispyribac water dispersible granules (32+20+8)

[0051] 32% sulfonepyraclostrobin + 20% isoxathiapiprolin + 8% bispyribac + 0.5% citric acid + 5% polycarboxylate dispersant + 5% sodium lignin sulfonate + 5% pull open powder + 5% precipitated white carbon black + kaolin to make up

[0052] 3. Sulfonepyraclostrobin + isoxathiapiprolin + fenpyraclostrobin dispersible oil suspension (8+5+6)

[0053] 8% sulfonepyraclostrobin + 5% isoxathiapiprolin + 6% fenpyroxil + 0.2% citric acid + 4% calcium dodecylbenzenesulfonate + 8% fatty alcohol polyoxyethylene ether + 3% castor oil polyoxyethylene ether + 2% fatty acid polyoxyethylene ester + 1.6% organic bentonite + 1.5% fumed silica + 5% 200# solvent oil + 10% first-grade soybean oil + methyl oleate to make up

[0054] 4. Sulfone pyraclostrobin + triazole sulfone + oxadiazon aqueous suspension (0.4+9+11.6)

[0055] 0.4% sulfonepyraclostrobin + 9% triazole sulfone + 11.6% oxadiazon + 4% phenethylphenol polyoxyethylene ether phosphate triethanolamine salt + 2% fatty alcohol polyoxyethylene ether + 0.18% xanthan gum + 1.5% magnesium aluminum silicate + 0.1% defoamer + 4% ethylene glycol + water to make up

[0056] 5. Sulfone pyraclostrobin + triazole sulfone + cyclopentadione aqueous suspension (0.4+9+10.6)

[0057] 0.4% sulfonepyraclostrobin + 9% triazole sulfone + 10.6% cyclopentadione + 4% phenethylphenol polyoxyethylene ether phosphate triethanolamine salt + 2% fatty alcohol polyoxyethylene ether + 0.18% xanthan gum + 1.5% magnesium aluminum silicate + 0.1% defoamer + 4% ethylene glycol + water to make up

[0058] 6. Sulfone pyraclostrobin + triazole sulfone + bispyribac nitrile water suspension (0.4+9+10.6)

[0059] 0.4% sulfonepyraclostrobin + 9% triazole sulfone + 10.6% bispyribac nitrile + 4% phenethylphenol polyoxyethylene ether phosphate triethanolamine salt + 2% fatty alcohol polyoxyethylene ether + 0.18% xanthan gum + 1.5% magnesium aluminum silicate + 0.1% defoamer + 4% ethylene glycol + water to make up

[0060] 7. Sulfone pyraclostrobin + triazole sulfone + oxyfluorfen dispersible oil suspension (0.4+9+3.6)

[0061] 0.4% sulfonepyraclostrobin + 9% triazole + 3.6% oxyfluorfen + 4% calcium dodecylbenzene sulfonate + 8% fatty alcohol polyoxyethylene ether + 3% castor oil polyoxyethylene ether + 5% first-grade soybean oil + 2.5% fumed silica + 10% 100# solvent oil + 2.8% organic bentonite + methyl oleate to make up

[0062] The above-mentioned aqueous suspension processing equipment: mixing kettle, colloid mill, sand mill, shearing machine, etc.

[0063] The processing process of the above-mentioned water suspension is as follows: all materials are put into a mixing kettle, stirred and mixed, and then passed through a colloid mill, and then entered into a three-stage sand mill in a sand mill, and finally sheared evenly in a shearing machine. After passing the test, it is transferred to a storage tank for filling.

[0064] The above-mentioned water dispersible granules processing equipment: air flow mill, plowshare mixer, basket granulator, drying box, screening machine, etc.

[0065] The processing process of the water dispersible granules is as follows: the above materials are mixed evenly and crushed by air flow, water is added to knead and granulate, then dried, and finally sieved to obtain the finished product.

[0066] The above-mentioned dispersible oil suspension processing equipment: mixing kettle, colloid mill, sand mill, shearing machine, etc.

[0067] The processing process of the above-mentioned dispersible oil suspension is as follows: all materials are put into a mixing kettle, stirred and mixed, and then passed through a colloid mill, and then entered into a three-stage sand mill in a sand mill, and finally sheared evenly in a shearing machine. After passing the test, it is transferred to a storage tank for filling.

[0068] B) Efficacy test

[0069] Soil spray sealing treatment:

[0070] 1) Test conditions

[0071] 1.1) Test target

[0072] Chenopodium album L. was collected from Qingdao, Shandong.

[0073] 1.2) Culture conditions

[0074] The above weeds were cultivated in potted plants. 180x140mm plastic nutrient pots were placed in enamel trays, and the surface soil (4 / 5 places) collected from farmland and air-dried and sieved was filled in the pots. The soil moisture was initially controlled at 20%. Weed seeds with full and uniform seeds were selected, soaked in 25°C warm water for 6 hours, and germinated in a 28°C biochemical incubator (dark). The weed seeds that had just turned white were evenly placed on the soil surface, and then covered with 0.7cm of soil. After the treatment with the agent, they were placed in a controllable solar greenhouse for cultivation, and a certain amount of water was regularly added to the enamel tray to keep the soil moist.

[0075] The experiment was carried out in a controlled sunlight greenhouse at a temperature of 18-30°C, natural light, and a relative humidity of 57%-72%. The soil type was loam, with an organic matter content of 1.63%, a pH of 7.1, 84.3 mg / kg of alkaline nitrogen, 38.5 mg / kg of available phosphorus, and 82.1 mg / kg of available potassium.

[0076] 1.3) Instruments and Equipment

[0077] 3WP-2000 walking spray tower, Nanjing Agricultural Machinery Research Institute, Ministry of Agriculture. GA110 1 / 10,000 electronic balance (Germany); ZDR2000 intelligent data recorder (Hangzhou Zeda Instrument Co., Ltd.); SPX intelligent biochemical incubator (Ningbo Jiangnan Instrument Factory).

[0078] 2) Experimental design

[0079] 2.1) Reagents

[0080] The required active ingredients, bispyribac and fenpyrazone, are produced by our company, and the others are purchased from the reagent company. The original drugs all use acetone as solvent and are diluted with 0.1% emulsifier T-80 aqueous solution, and are diluted before use.

[0081] 2.2) Experimental treatment

[0082] 2.2.1) Dose setting

[0083] When determining the proportion or content of each group, the action characteristics and toxicity of the three drugs should be considered, and the main purpose of the formula should also be considered. Based on the preliminary test, this study set the dosage for single use and mixed use. Water without drugs and containing the same solvent and emulsifier was used as a blank control.

[0084] 2.2.2) Experimental repetition

[0085] Each treatment was replicated 4 times, with 3 pots per treatment and 30 weed seeds sown in each pot, for a total of 90 seeds per treatment.

[0086] 2.3) Processing method

[0087] 2.3.1) Processing time and frequency

[0088] The test drug was applied once, 24 hours after sowing.

[0089] 2.3.2) Use of equipment and medication methods

[0090] Place the cultured test materials evenly on an area of ​​0.5m 2 On the platform, use the 3WP-2000 walking spray tower to spray the soil surface, the spray volume is 450 kg / hectare. The spray pressure is 0.3MPa. After all the liquid is sprayed, close the air valve. After 30 seconds, open the spray tower door and take out the nutrient pot. Then open the air valve, spray 50mL of clean water, and clean the spray pipe.

[0091] 3) Test methods

[0092] The potting method is adopted. See 1.2 for weed cultivation, refer to the "Guidelines for Indoor Bioassay Tests of Pesticides - Herbicides". See 2.3.2 for drug application, adopt the soil treatment method.

[0093] 4) Data investigation and statistical analysis

[0094] 4.1) Survey Methods

[0095] The absolute number survey method was used. The surviving weed seedlings were cut along the soil surface with a blade and the fresh weight of the weeds was weighed with an analytical balance. For dead weeds, the fresh weight was counted as zero.

[0096] 4.2) Survey time and frequency

[0097] The survey was conducted 15 days after treatment, for a total of 1 survey.

[0098] 4.3) Data Statistical Analysis

[0099] The Colby method was used to evaluate the combined effect of any two or three compounds on weeds.

[0100] On the 15th day, the aboveground green tissues of each treatment were cut and weighed using an electronic balance to calculate the actual survival rate: E (%) = (fresh weight of weeds in the treatment area / fresh weight of weeds in the control area) × 100

[0101] The theoretical weed survival rate calculation formula is: E0 (%) = X × Y / 100 (binary mixture)

[0102] Where X represents the weed survival rate of A when the dosage is P, Y represents the weed survival rate of B when the dosage is Q, E0 represents the theoretical weed survival rate of A+B when the dosage is (P+Q), and E represents the actual weed survival rate of each treatment.

[0103] E0(%)=X×Y×Z×…×N / 100 (n-1) (Three or more mixed)

[0104] Where X, Y, Z, and N represent the actual survival rates of n single agents, and n is the number of compound herbicide varieties.

[0105] When E0-E>10%, it indicates a synergistic effect; when E0-E<-10%, it indicates an antagonistic effect; when E0-E is between ±10%, it indicates an additive effect.

[0106] Soil activity determination by irrigation method:

[0107] 1) Test conditions

[0108] 1.1) Test target

[0109] Echinochloa crusgalli was collected from Qingdao, Shandong.

[0110] 1.2) Culture conditions

[0111] The above weeds were cultivated in potted plants. 180x140mm plastic nutrient pots were placed in enamel trays, filled with air-dried and sieved surface soil (4 / 5 places) collected from farmland. The soil moisture was initially controlled at 20%. Weed seeds with full and uniform seeds were selected, soaked in 25°C warm water for 6 hours, and germinated in a 28°C biochemical incubator (dark). The weed seeds that had just turned white were evenly placed on the soil surface, and then covered with 0.7cm of soil. Water before treatment to maintain a 2cm water layer. After the treatment with the agent, they were placed in a controlled solar greenhouse for cultivation.

[0112] The experiment was carried out in a controlled sunlight greenhouse at a temperature of 18-30°C, natural light, and a relative humidity of 57%-72%. The soil type was loam, with an organic matter content of 1.63%, a pH of 7.1, 84.3 mg / kg of alkaline nitrogen, 38.5 mg / kg of available phosphorus, and 82.1 mg / kg of available potassium.

[0113] 1.3) Instruments and Equipment

[0114] Pipette.

[0115] 2) Experimental design

[0116] 2.1) Reagents

[0117] The required active ingredient triazole sulfone is produced by our company, and the others are purchased from the reagent company. The original drug uses acetone as solvent and is diluted with 0.1% emulsifier T-80 aqueous solution. It is diluted before use.

[0118] 2.2) Experimental treatment

[0119] 2.2.1) Dose setting

[0120] When determining the proportion or content of each group, the action characteristics and toxicity of the three drugs should be considered, and the main purpose of the formula should also be considered. Based on the preliminary test, this study set the dosage for single use and mixed use. Water without drugs and containing the same solvent and emulsifier was used as a blank control.

[0121] 2.2.2) Experimental repetition

[0122] Each treatment was replicated 4 times, with 3 pots per treatment and 30 weed seeds sown in each pot, for a total of 90 seeds per treatment.

[0123] 2.3) Processing method

[0124] 2.3.1) Processing time and frequency

[0125] The test drug was applied once, 24 hours after sowing.

[0126] 2.3.2) Use of equipment and medication methods

[0127] Use a pipette to take a certain amount of drug solution and carry out irrigation treatments from low dose to high dose according to the experimental design.

[0128] 3) Test methods

[0129] The potting method is adopted. The weed cultivation is shown in 1.2, and the "Guidelines for Indoor Bioassay Tests of Pesticides - Herbicides" are used. The application method is shown in 2.3.2, and the irrigation method is adopted.

[0130] 4) Data investigation and statistical analysis

[0131] 4.1) Survey Methods

[0132] The absolute number survey method was used. The surviving weed seedlings were cut along the soil surface with a blade and the fresh weight of the weeds was weighed with an analytical balance. For dead weeds, the fresh weight was counted as zero.

[0133] 4.2) Survey time and frequency

[0134] The survey was conducted 15 days after treatment, for a total of 1 survey.

[0135] 4.3) Data Statistical Analysis

[0136] The Colby method was used to evaluate the combined effect of any two or three compounds on weeds.

[0137] On the 15th day, the aboveground green tissues of each treatment were cut and weighed using an electronic balance to calculate the actual survival rate: E (%) = (fresh weight of weeds in the treatment area / fresh weight of weeds in the control area) × 100

[0138] The theoretical weed survival rate calculation formula is: E0 (%) = X × Y / 100 (binary mixture)

[0139] Where X represents the weed survival rate of A when the dosage is P, Y represents the weed survival rate of B when the dosage is Q, E0 represents the theoretical weed survival rate of A+B when the dosage is (P+Q), and E represents the actual weed survival rate of each treatment.

[0140] E0(%)=X×Y×Z×…×N / 100 (n-1) (Three or more mixed)

[0141] Where X, Y, Z, and N represent the actual survival rates of n single agents, and n is the number of compound herbicide varieties.

[0142] When E0-E>10%, it indicates a synergistic effect; when E0-E<-10%, it indicates an antagonistic effect; when E0-E is between ±10%, it indicates an additive effect.

[0143] The actual control effect of each component mixture on weeds and the statistical results of the evaluation of the combined effect are shown in Tables 1-7 below.

[0144] Table 1 A is sulfone pyraclostrobin, B is isoxathiapiprolin, and C is mesotrione (soil spray treatment, test material is Chenopodium album)

[0145]

[0146] Table 2 A is sulfone pyraclostrobin, B is isoxathiapiprolin, and C is bispyribac-butyl (soil spray treatment, test material is Chenopodium album)

[0147]

[0148]

[0149] Table 3 A is sulfonepyraclostrobin, B is isoxathiapiprolin, and C is fenpyrazone (soil spray treatment, test material is Chenopodium album)

[0150]

[0151] Table 4 A is sulfone pyraclostrobin, B is triazole sulfone, and C is oxadiazon (soil irrigation treatment, test material is barnyard grass)

[0152]

[0153] Table 5 A is sulfonepyraclostrobin, B is triazole sulfone, and C is cyclopentadione (soil irrigation treatment, test material is barnyard grass)

[0154]

[0155]

[0156] Table 6 A is sulfone pyraclostrobin, B is triazole sulfone, and C is bispyribac nitrile (soil irrigation treatment, test material is barnyard grass)

[0157]

[0158] Table 7 A is sulfonepyraclostrobin, B is triazosulfuron, and C is oxyfluorfen (soil irrigation treatment, test material is barnyard grass)

[0159]

[0160] Note: E(A): The measured fresh weight survival rate of component A at a given dose

[0161] E(B): Measured fresh weight survival rate of component B treatment at a given dose

[0162] E(C): Measured fresh weight survival rate of component C treatment at a given dose

[0163] E(A+B): The measured fresh weight survival rate of the binary mixture of component A and component B at a given dose

[0164] E(A+C): The measured fresh weight survival rate of the binary mixture of component A and component C at a given dose

[0165] E(B+C): The measured fresh weight survival rate of the binary mixture of component B and component C at a given dose

[0166] E(A+B+C): The measured fresh weight survival rate of the mixture of components A, B, and C at a given dose

[0167] E0(A+B+C): Theoretical fresh weight survival rate of a mixture of components A, B, and C at a given dose

[0168] E0((A+B)+C): The theoretical fresh weight survival rate of components A and B as a whole and component C as a binary mixture at a given dose

[0169] E0((A+C)+B): The theoretical fresh weight survival rate of components A and C as a whole and component B as a binary mixture at a given dose

[0170] E0(A+(B+C)): The theoretical fresh weight survival rate of component B and C as a whole and component A as a binary mixture at a given dose C) Field demonstration

[0171] The herbicide compositions prepared in Examples 1) to 7) were used to conduct field weed efficacy tests.

[0172] The demonstration and promotion test of Examples 1)-3) was carried out at the Jinhu test site in Jiangsu in 2017. The weeds occurring in the field mainly included: crabgrass, barnyard grass, goosegrass, Amaranthus retroflexus, and Chenopodium album.

[0173] Test method (soil spray treatment): before weeds germinate, use a manual sprayer with a water volume of 45 kg / 667m 2 , using uniform spraying on the soil surface. Specific test agents and dosages are detailed in Table 8. The plot area is 50 square meters, and each treatment is repeated 4 times. The control effect investigated 45 days after application is shown in Table 8.

[0174] The demonstration and promotion test of Examples 4)-7) was carried out at the Hubei Public Security Experimental Site in 2017. The weeds occurring in the field mainly included: barnyard grass, lycopodiella cuneata, duckweed, dwarf sagittaria, and moss onion.

[0175] Test method (rice transplanting field, spraying): before weeds germinate, use a manual sprayer, dilute with 15 kg of water / 667m 2 , remove the nozzle and apply the pesticide. The specific test pesticides and dosages are shown in Table 9. The plot area is 50 square meters, and each treatment is repeated 4 times. The control effect was investigated 45 days after application and is shown in Table 9.

[0176]

[0177] Table 8 Field demonstration effect of the composite composition

[0178]

[0179] Table 9 Field demonstration effect of the composite composition

[0180]

[0181]

[0182] After a lot of experiments and explorations, the present invention unexpectedly found that the composition has a surprising and unexpected synergistic effect in controlling weeds such as crabgrass, barnyard grass, goosegrass, amaranth, quinoa, barnyard grass, chinensis, duckweed, dwarf arrowhead, and moss, and this synergistic effect is more significant at low doses, which can reduce the amount of medicine used and reduce pollution to the environment. The reasonable compounding reduces the agricultural cost, and it is highly effective against ALS and ACCase inhibitor-resistant weeds, and has a good application prospect. At the same time, after testing, it shows good selectivity and excellent synergistic effect on lawns and crops such as conventional varieties and gene-edited varieties of wheat fields, corn fields, rice fields, peanuts, sugarcane, sorghum, millet, potatoes, rapeseed, soybeans, cotton, vegetables, bluegrass, tall fescue, and zoysia grass, and can be developed into a herbicide mixture with a wide market value.

Claims

1. A ternary herbicidal composition comprising sulfonepyraclostrobin, characterized in that: The composition comprises an effective amount of active ingredient A, active ingredient B and active ingredient C, wherein: Active ingredient A is sulfonepyraclostrobin; Active ingredient B is isoxathiapiprolin; The active ingredient C is selected from one of the following compounds: bispyribac and fenpyrad. When the active ingredient C is bispyribac, the weight ratio of A, B and C is 20-80:10-40:10-60; When the active ingredient C is fenpyroxime, the weight ratio of A, B and C is 20~80:10~40:30~160.

2. A ternary herbicidal composition comprising sulfonepyraclostrobin according to claim 1, characterized in that: When the active ingredient C is bispyribac, the weight ratio of A, B and C is 20-80:10-40:15-60; When the active ingredient C is fenpyroxime, the weight ratio of A, B and C is 20~80:10~40:35~140.

3. A ternary herbicidal composition comprising sulfonepyraclostrobin according to claim 2, characterized in that: When the active ingredient C is bispyribac, the weight ratio of A, B and C is 20-80:10-40:30-60; When the active ingredient C is fenpyroxime, the weight ratio of A, B and C is 20-80:10-40:60-100.

4. A ternary herbicidal composition comprising sulfonepyraclostrobin according to any one of claims 1 to 3, characterized in that: The mass percentage of A, B and C in the herbicidal composition accounts for 1-95% of the total amount.

5. A ternary herbicidal composition comprising sulfonepyraclostrobin according to claim 4, characterized in that: The mass percentage of A, B and C in the herbicidal composition accounts for 10-80% of the total amount.

6. A ternary herbicidal composition comprising sulfonepyraclostrobin according to any one of claims 1 to 3, characterized in that: The herbicidal composition also includes conventional adjuvants.

7. A ternary herbicidal composition comprising sulfonepyraclostrobin according to claim 6, characterized in that: The conventional adjuvants include carriers and surfactants.

8. A ternary herbicidal composition comprising sulfonepyraclostrobin according to any one of claims 1 to 3, characterized in that: The herbicidal composition further comprises at least one safener.

9. A ternary herbicidal composition comprising sulfonepyraclostrobin according to any one of claims 1 to 3, characterized in that: The specific formulation of the herbicidal composition is a dispersible oil suspension, an aqueous suspension, a suspoemulsion, a wettable powder, an emulsifiable concentrate, a water dispersible granule, an aqueous emulsion or a microemulsion.

10. Use of the ternary herbicidal composition comprising pyraclostrobin as claimed in any one of claims 1 to 9 for controlling weeds in crops.

11. A method for controlling unwanted plant growth, which comprises applying the ternary herbicidal composition comprising sulfonepyraclostrobin as claimed in any one of claims 1 to 9 to plants, plant parts, plant seeds or areas where plants grow.

12. The method according to claim 11, characterized in that For selective control of weeds in crops.

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