CN110946144B - Herbicidal composition containing clomazone and application thereof - Google Patents

Herbicidal composition containing clomazone and application thereof Download PDF

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Publication number
CN110946144B
CN110946144B CN201811130176.3A CN201811130176A CN110946144B CN 110946144 B CN110946144 B CN 110946144B CN 201811130176 A CN201811130176 A CN 201811130176A CN 110946144 B CN110946144 B CN 110946144B
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clomazone
herbicidal composition
weight ratio
active ingredient
methyl
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CN110946144A (en
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彭学岗
赵德
刘娜
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Shandong Qingyuan Agricultural Crop Science Co ltd
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Qingdao Kingagroot Chemical Compound Co Ltd
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
    • A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
    • A01N33/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds containing nitrogen-to-oxygen bonds
    • A01N33/18—Nitro compounds
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
    • A01N33/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds containing nitrogen-to-oxygen bonds
    • A01N33/18—Nitro compounds
    • A01N33/20—Nitro compounds containing oxygen or sulfur attached to the carbon skeleton containing the nitro group
    • A01N33/22—Nitro compounds containing oxygen or sulfur attached to the carbon skeleton containing the nitro group having at least one oxygen or sulfur atom and at least one nitro group directly attached to the same aromatic ring system
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
    • A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
    • A01N41/10—Sulfones; Sulfoxides
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
    • A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
    • A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
    • A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
    • A01N43/647—Triazoles; Hydrogenated triazoles
    • A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
    • A01N43/66—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
    • A01N43/66—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms
    • A01N43/68—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms with two or three nitrogen atoms directly attached to ring carbon atoms
    • A01N43/70—Diamino—1,3,5—triazines with only one oxygen, sulfur or halogen atom or only one cyano, thiocyano (—SCN), cyanato (—OCN) or azido (—N3) group directly attached to a ring carbon atom
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
    • A01N57/10—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds
    • A01N57/14—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds containing aromatic radicals

Abstract

The invention belongs to the field of pesticides, and particularly relates to a herbicidal composition containing clomazone and application thereof. The weeding composition comprises an active ingredient A and an active ingredient B with effective weeding amount, wherein the active ingredient A is clomazone; the active ingredient B is selected from one or more of the following compounds and salts/esters thereof: VLCFA inhibitors, PPO inhibitors, PSII inhibitors, microtubule assembly inhibitors, HPPD inhibitors, synthetic hormones, and the like. The composition can effectively prevent and kill weeds such as cardamine hirsute, barnyard grass, monochoria vaginalis, amaranthus retroflexus, chenopodium album, moleplant seeds and the like, and has the characteristics of expanding a weed control spectrum, reducing application amount, generating a synergistic effect, solving resistant weeds and the like.

Description

Herbicidal composition containing clomazone and application thereof
Technical Field
The invention belongs to the field of pesticides, and particularly relates to a herbicidal composition containing clomazone and application thereof.
Background
Chemical weeding is the most economic and effective means in preventing and removing weeds in farmlands, but the problems of drug resistance and resistance evolution of weeds and the like are easily caused by using a single variety or a single action mode of chemical herbicide continuously at a high dose for a long time. The reasonable compounding or mixing of the herbicide compound has the advantages of expanding the weed spectrum, improving the control effect, delaying the occurrence and development of drug resistance and drug resistance of weeds and the like, and is one of the most effective methods for solving the problems. For example, patents CN106455569A and CN107920511A describe herbicidal compositions containing 3-isoxazolidinone compounds, and there is still a need to develop herbicidal compositions with high safety, broad herbicidal spectrum, synergistic effect and solving the problem of resistant weeds.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention provides a herbicidal composition comprising clomazone and its use. The composition can effectively prevent and kill off weeds such as cardamine hirsute, barnyard grass, monochoria vaginalis, amaranthus retroflexus, chenopodium album, moleplant seeds and the like in crop fields, and has the characteristics of expanding weed control spectrum, reducing application amount, generating synergistic action, solving resistant weeds and the like.
A herbicidal composition comprising clomazone, comprising a herbicidally effective amount of active ingredient A and active ingredient B, wherein,
the active component A is clomazone (CAS number: 81777-95-9);
the active ingredient B is selected from one or more of the following compounds and salts/esters thereof:
(1) VLCFA inhibitors: pyraflufen-ethyl (CAS number: 447399-55-5), anilofos (CAS number: 64249-01-0);
(2) PPO inhibitors: oxyfluorfen (CAS number: 42874-03-3), pyraclonil (CAS number: 158353-15-2);
(3) PSII inhibitors: terbutryn (CAS number: 886-50-0), amicarbazone (CAS number: 129909-90-6), prometryn (CAS number: 7287-19-6);
(4) microtubule assembly inhibitors: butralin (CAS number: 33629-47-9);
(5) HPPD inhibitors: topramezone (CAS number: 1992017-55-6), tembotrione (CAS number: 1911613-97-2), mesotrione (CAS number: 104206-82-8), fluroxypyr (CAS number: 352010-68-5),
Figure BDA0001813336790000011
(6) Synthesis of hormones: chlorofluoropyridine esters (CAS number: 1390661-72-9);
(7) and others: cinmethylin (CAS number: 87818-31-3).
In the context of the present specification, if the abbreviated forms of the common name of the active compounds are used, all customary derivatives, such as esters and salts, and also isomers, in particular optical isomers, in particular one or more commercially available forms, are included in each case. If the generic name denotes esters or salts, all other customary derivatives, such as other esters and salts, free acids and neutral compounds, and also isomers, in particular optical isomers, in particular one or more commercially available forms, are also included in each case. The chemical name given for a compound means at least one compound covered by the generic name, with compounds generally being preferred. In the case of sulfonamides, such as sulfonylureas, salts also include those formed by exchange of cations with hydrogen atoms in the sulfonamide group.
In the context of the present invention, the salts of the compounds are preferably in the form of the respective alkali metal, alkaline earth metal or ammonium salts, preferably in the form of the respective alkali metal salts, more preferably in the form of the respective sodium or potassium salts, most preferably in the form of the respective sodium salts.
A. The weight ratio of B is 1-200: 200-1 and 1-150: 150-1; preferably 1-120: 120-1 and 1-100: 100-1; more preferably 1-80: 80-1 and 1-50: 50-1; further preferably 1-30: 30-1 and 1-10: 10-1.
The mass percentage of A, B in the weeding composition accounts for 1-95% of the total amount, and preferably 10-80%.
The weeding composition also comprises conventional auxiliaries which comprise a carrier and a surfactant.
The term "carrier" herein denotes an organic or inorganic, natural or synthetic substance. They facilitate the application of the active ingredient, the carrier being generally inert and must be agriculturally acceptable, in particular for the treated plant. The carrier may be a solid, such as a clay, natural or synthetic silicate, silica, resin, wax, solid fertilizer, or the like; or liquids such as water, alcohols, ketones, petroleum distillates, aromatic or waxy hydrocarbons, chlorinated hydrocarbons, liquefied gases, etc.
Surfactants may include emulsifying, dispersing or wetting agents, which may be ionic or non-ionic. Examples which may be mentioned are salts of polyacrylic acids, lignosulphonates, salts of phenolsulphonic or naphthalenesulphonic acids, polymers of ethylene oxide with aliphatic alcohols or with aliphatic acids or with aliphatic amines and substituted phenols, in particular alkylphenols or arylphenols, sulphosuccinates, taurine derivatives, in particular taurine alkyl esters, and phosphoric esters of alcohols or polyhydroxyethylated phenols, alkylsulfonates, alkylarylsulphonates, alkylsulfates, lauryl ether sulphates, fatty alcohol sulphates, and sulphated hexadec, heptadeca-and octadecanols and sulphated fatty alcohol glycol ethers, and furthermore condensates of naphthalene or naphthalenesulphonic acids with phenol and formaldehyde, polyoxyethylene octylphenyl ether, ethoxylated isooctylphenol, octylphenol or nonylphenol, alkylphenyl polyglycol ethers, tributylphenyl polyglycol ether, tristearylphenyl polyglycol ether, polystearylphenyl polyglycol ether, Alkylaryl polyether alcohols, alcohol and fatty alcohol/ethylene oxide condensates, ethoxylated castor oil, polyoxyethylene alkyl ethers, ethoxylated polyoxypropylene, lauryl alcohol polyglycol ether acetal, sorbitol esters, lignosulfite waste liquors, and also proteins, denatured proteins, polysaccharides (e.g. methylcellulose), hydrophobically modified starches, polyvinyl alcohols, polycarboxylates, polyalkoxylates, polyvinylamines, polyvinylpyrrolidone and copolymers thereof. At least one surfactant is required to be present to facilitate dispersion of the active ingredients in water and to facilitate their proper application to the plant.
The compositions may also contain various other components such as protective colloids, binders, thickeners, thixotropic agents, penetrants, stabilizers, chelating agents, dyes, colorants, and polymers.
In addition, the composition of the present invention can be mixed with the following active substances, for example, known substances in "the world Wide Specification of New agricultural chemical products", the Chinese agricultural science and technology Press, 2010.9 and the references cited therein. For example, herbicidal active substances mentioned below (remarks: the name of the compound, or the generic name according to the International organization for standardization (ISO), or the chemical name, when appropriate with a code), acetochlor, butachlor, alachlor, propisochlor, metolachlor, s-metolachlor, pretilachlor, propachlor, butachlor, napropamide, R-laevo-napropamide, propanil, mefenacet, diphenoyl-oxamide, diflufenican, flumetsulam, bebutamid, dimethenamid, ethoxybenclamide, flufenacet, methoxyfenacet, metazachlor, isooxachlor, lofluvalinate, dimethenamid, butachlor, propisochlor, mefenamid, flucetochlor, propyzamide, dimethenamid, Terbutamid, dimethenamid, dimethachlor, norfluramine, trifoliamine, chlorantraniliprole, propyzamide, penflufen, napropamide, acetometazachlor, naproxen, fenacet, pyraflufen, metolachlor, clofenamide, butachlor, butamidin, fluazinam, atrazine, simazine, prometryn, cyanazine, simetryn, ametryn, prometryn, ipretryn, fluroxypyr, terbutryn, terbutazine, triazineon, cyhalofop, ganciclovir, prometryn, simazine, triazazine, dimethametrazine, isopentetryn, cycloprozine, terbutryn, sec-butyn, terbutaline, terbutryn, metolachlor, cyhalofop, metolachlor, prometryn, simazine, atrazine, dimethametryn, dimethametin, terbutryn, metolachlor, dimethachlor, dimethozin, atrazine, metolachloraz, metolachlor, metolac, Cyanuric acid, Indaziflam, chlorsulfuron, metsulfuron, bensulfuron-methyl, chlorimuron-ethyl, tribenuron-methyl, thifensulfuron-methyl, pyrazosulfuron-ethyl, mesosulfuron-methyl, iodosulfuron-methyl sodium, formamidosulfuron, cinosulfuron, triasulfuron, sulfometuron-methyl, nicosulfuron, ethametsulfuron-methyl, amidosulfuron, ethoxysulfuron, cyclosulfamuron-methyl, rimsulfuron, azimsulfuron-methyl, monosulfuron-methyl, primisulfuron-methyl, flusulfuron-methyl, flazasulfuron-methyl, propsulfuron-methyl, prosulfuron-methyl, trifloxysulfuron, triflusulfuron-methyl, metsulfuron-methyl, primisulfuron-methyl, propulsulfuron-methyl, propaferon-methyl, triflusulfuron-methyl, sulfometuron-methyl, pyrisulfuron-methyl, propalis-ethyl, thiuron-methyl, sulfometuron-methyl, sulfometuron-ethyl, sulfometuron-ethyl, sulfofluridone, sulfometuron-ethyl, sulfofluridone, sulfometuron, sulfo, Dicumyl ether, aclonifen, ethoxyfen-ethyl, bifenox, trifluoromethoxyfen, metoxyfen, trifluornitrofen, fluoroglycofen, fluridone, bifenox, dimethofen, fluazifop-butyl, Halosafen, chlortoluron, isoproturon, linuron, diuron, fenpropuron, fluometuron, methabenzthiazuron, benzuron, sulfosulfuron, clofenuron, tebuthiuron, clodinuron, meturon, metoxuron, bromuron, metoxuron, meturon, metoxuron, metoron, Betalain, asulam, tefurazol, avenacalin, anilazine, chlorpropham, dichlofenamate, imazalil, cloropham, Carboxazole, chlorerprocarb, Fenasulam, BCPC, CPPC, Carbasulam, buticarb, thiobencarb, dimethenate, triallate, dichloropetalum, ethiofen, prosulfocarb, cloquintocet, prosulfocarb, dichloropetalum, dichloropetalate, dichloropetal, 2-methyl-4-chloropropionate, 2-methyl-4-chlorobutyric acid, 2,4, 5-nasal discharge propionic acid, 2,4, 5-nasal discharge butyric acid, 2-methyl-4-chloroamine salt, dicamba, woollen boom, varparvax, cypress, triclosan, dichlorfenamic acid, metoclopramide, diclofop-p-ethyl, haloxyfop-methyl, haloxyfop-ethyl, quizalofop-p-ethyl, fenoxaprop-p-ethyl, cyhalofop-butyl, fenoxaprop-p-ethyl, cloroph-ethyl, haloxyfop-ethyl, trifoliate-ethyl, clomazone, paraquat, dixyl, asulam, flutolon, isoproturon, chlorothalofop-ethyl, cyhalofop-p-ethyl, propafen-ethyl, butyfen-ethyl, fluroxypyr, metalaxyl, propafen, propaferin, propafen, glyphosate, anilofos, glufosinate, sulfosate, piperaphos, bialaphos, bensulide, imazapyr, mepyrazine, varroa, amifostine, glufosinate, imazethapyr ammonium salt, imazethapyr, imazamethabenz ester, fluroxypyr, isooctyl fluroxypyr, clopyralid, picloram, triclopyr, dithiopyr, haloxyfen, triclopyr, thiazopyr, flurazinone, aminopyralid, flurazone, diflufenzopyr, butoxyethyl triclopyr, ciodinate, sethoxydim, clethodim, thiacet, sethoxydim, clethodim, carfenflurazone, buthiazole, metribuzin, carfenflurazone, metamitron, fenflurazone, fenpyr, benzone, iodoxynil, bromoxynil, isoflurazone, isofluroxypyr, bensulam, isofluroxypyr, clomazone, ioxynil, dichlobenil, tolfenacet, pyraclonil, Iodobonil, flumetsulam, florasulam, penoxsulam, sulfentrazone, cloransulam, diclosulam, pyroxsulam, fluralin, bispyribac, pyribenzoxim, pyriminobac-methyl, pyrithiobac-methyl, bicyclosulfuron, mesotrione, Tembotrione, Tefuryltrione, Bicyclopyrone, ketoxydipradox, isoxaflutole, fenoxasulfolane, Methiozolin, isopyrafen, pyraflufen, pyraflutole, pyrazotocide, pyraclonil, pyraclofenacetone, flumetsulcotrione, flumetsulam, fenflurazole, fentrazachlor, amicarbazone, fentrazachlor, pyrazachlor, pyraclonil, flumicloram, flumioxazone, fenflurazole, flumicloram, bexapyroxadim, flumicloram, bexadim, flumicloram, benfluroram, flumicl, Phthalidyl ether, Flumezin, pentachlorophenol (sodium), dinol, terbenol, terbutal, pendimethalin, dinitrophenol, chloronitrophenol, dimethomorph, oxadiargyl, oxadiazon, pentoxazone, flumetsulam, mefenoxaprop-p-ethyl, tetrazolyl amine, fluridazin, oxamyl, bromamine, dimethenamid, pyridaben, pyridate, pyrirfalol, quinclorac, bentazone, pyridate, oxaziclorac, benazolin, clomazone, clomeptyl, isoprox, iprodione, propamocarb, cumylfen, indoxacarb, sodium chlorate, dalton, dalapon, trichloroacetic acid, monochloroacetone, hexachloroacetone, tetrafluoropropionic acid, pasture, bromophenol oxime, triazoxide, fentrazol, furamethon, fursulam, ethon, benfurazolin, pyrimethanil, clorac, clodinafop, clorac, cumquat, cumarone, clorac, Thidiazuron, alantin, hydroxybenone, metophenone, saflufenacil, dichlorophosphoric, trichloropropionic acid, Alorac, Diethamquat, Etnipromid, Iphridam, Ipfancarbazone, Thiencarbazone-methyl, Pyrimisulfan, Chlorflurflurazone, Tripropindan, Sulglycapin, Sumbelanoline, Campandichlor, Cytopyrimidic acid, thiocyananilide, clethodim, fenclorim, cloquintocet, mequintocet, oxaziclomex, oxabetrinil, pyroxaglim, furazolidone, imazaquin, isoxadifen, dichlormid, halauxin, halauxifen, DOWF, UBH-509, D489, LS 82-556, KPP-300, NC-324, NC-330, KH-218, DPX-N8189, SC-0744, DOWCO535, DK-8910, V-53482, PP-600, MBH-001, KIH-9201, ET-751, KIH-6127 and KIH-2023.
The herbicidal composition further comprises at least one safener selected from the group consisting of:
a) dichlorophenyl pyrazoline-3-carboxylic acid (S1) compounds, preferred compounds are, for example, ethyl 1- (2, 4-dichlorophenyl) -5- (ethoxycarbonyl) -5-methyl-2-pyrazoline-3-carboxylate (S1-1 mefenpyr-diethyl, PM, p. 594-595), and related compounds described, for example, in WO91/07874 and PM (p. 594-595).
b) Dichlorophenyl pyrazole carboxylic acid derivatives, preferred compounds are, for example, ethyl 1- (2, 4-dichlorophenyl) -5-methylpyrazole-3-carboxylate (S1-2), ethyl 1- (2, 4-dichlorophenyl) -5-isopropylpyrazole-3-carboxylate (S1-3), ethyl 1- (2, 4-dichlorophenyl) -5- (1, 1-dimethyl-ethyl) pyrazole-3-carboxylate (S1-4), ethyl 1- (2, 4-dichlorophenyl) -5-phenylpyrazole-3-carboxylate (S1-5), and related compounds as described in EP-A-333131 and EP-A-269806.
c) Triazole carboxylic acids (S1) and preferred compounds are, for example, fenchlorazole (fenchlorazole), i.e. ethyl 1- (2, 4-dichlorophenyl) -5-trichloromethyl- (1H) -1,2, 4-triazole-3-carboxylate (S1-6) and related compounds (see EP-A-174562 and EP-A-346620).
d) 5-benzyl-or 5-phenyl-2-isoxazoline-3-carboxylic acids or 5, 5-diphenyl-2-isoxazoline-3-carboxylic acids, preferred compounds being, for example, ethyl 5- (2, 4-dichlorobenzyl) -2-isoxazoline-3-carboxylate (S1-7) or ethyl 5-phenyl-2-isoxazoline-3-carboxylate (S1-8) and related compounds described in WO91/08202, or ethyl 5, 5-diphenyl-2-isoxazoline-3-carboxylate (S1-9, isoxadifen-ethyl)) or 5 described in the patent application (WO-A-95/07897), n-propyl 5-diphenyl-2-isoxazoline-3-carboxylate (S1-10) or ethyl 5- (4-fluorophenyl) -5-phenyl-2-isoxazoline-3-carboxylate (S1-11).
e) 8-Quinolinyloxyacetic acids (S2) of the class of compounds, preferably 1-methylhexan-1-yl (5-chloro-8-quinolinyloxy) acetate (S2-1, cloquintocet-mexyl), such as PM (p. 195-), (1, 3-dimethylbut-1-yl) (5-chloro-8-quinolinyloxy) acetate (S2-2), 4-allyloxybutyl (5-chloro-8-quinolinyloxy) acetate (S2-3), 1-allyloxypropan-2-yl (5-chloro-8-quinolinyloxy) acetate (S2-4), (ethyl 5-chloro-8-quinolinyloxy) acetate (S2-5), (methyl 5-chloro-8-quinolinyloxy) acetate (S2-6), allyl (5-chloro-8-quinolinyloxy) acetate (S2-7), 2- (2-propyleneiminoyloxy) -1-ethyl (5-chloro-8-quinolinyloxy) acetate (S2-8), 2-oxopropan-1-yl (5-chloro-8-quinolinyloxy) acetate (S2-9), and related compounds described in EP-A-86750, EP-A-94349 and EP-A-191736 or EP-A-0492366.
f) (5-chloro-8-quinolinoxy) propanedioic acid-based compounds, preferred compounds are, for example, diethyl (5-chloro-8-quinolinoxy) malonate, (diallyl (5-chloro-8-quinolinoxy) malonate, (methylethyl (5-chloro-8-quinolinoxy) -malonate and related compounds described in EP-A-0582198.
g) Phenoxyacetic acid, phenoxypropionic acid or aromatic carboxylic acids, such as 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).
h) Pyrimidines, such as fenclorim (PM, page 386-387) (═ 4, 6-dichloro-2-phenylpyrimidine),
i) dichloroacetamide-based active compounds, which are frequently used as pre-emergence safeners (soil-working safeners), for example "dichloroallylamine (dichlormid)" (PM, page 270-271) (═ N, N-diallyl-2, 2-dichloroacetamide), "AR-29148" (-3-dichloroacetyl-2, 2, 5-trimethyl-1, 3-oxazolidinone from Stauffer), "benoxacor" (PM, page 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, from PPG Industries), "ADK-24" (═ N-allyl-N- [ (allylaminocarbonyl) -methyl ] -dichloroacetamide, from Sagro-Chem), "AAD-67" or "AMON 4660" (═ 3-dichloroacetyl-1-oxa-3-aza-spiro [4,5] decane, from nitrkemia or Monsanto), "diclonon" or "ABAS 145138" or "ala b 145138" (═ 3-dichloroacetyl-2, 5, 5-trimethyl-1, 3-diazabicyclo [4.3.0] nonane, from BASF), and "furilazol" or "AMON 13900" (see PM, 482-483) ((RS) -3-dichloroacetyl-5- (2-furyl) -2, 2-dimethyloxazolidinone),
j) dichloroacetone derivative-based active compounds, for example, "AMG 191" (CAS registry No. 96420-72-3) (═ 2-dichloromethyl-2-methyl-1, 3-dioxolane, available from Nitrokemia),
k) oxyimino compounds as active compounds, which are referred to as seed dressing materials, for example "oxabetrinil" (PM, page 689) (═ Z) -1, 3-dioxolan-2-ylmethoxyimino (phenyl) acetonitrile), which in seed dressing is referred to as safener in order to prevent damage to metolachlor (metallachlor), "fluoroxyfen" (PM, page 467 468) (═ 1- (4-chlorophenyl) -2,2, 2-trifluoro-1-ethanone O- (1, 3-dioxolan-2-ylmethyl) -oxime, which in seed dressing is referred to as safener in order to prevent damage to metolachlor (metallachlor), and "cyanohydrin" or "a-CGA-43089" (PM, page 983) ((Z) -cyanomethoxyimino (phenyl) acetonitrile), which is called safener in seed dressing, to prevent the damage of metolachlor (metolachlor),
l) Thiazolecarboxylic acid ester active compounds, which are known as seed dressing materials, for example "flurazon" (PM, p. 450. 451), (-2-chloro-4-trifluoromethyl-1, 3-thiazole-5-carboxylic acid benzyl ester), which are known as safeners in seed dressing to prevent damage to alachlor (alachlor) and metolachlor,
m) active compounds of the naphthalenedicarboxylic acid derivative class, which are known as seed dressings, for example "naphthalic anhydride" (PM, pp 1009-1010) (═ 1, 8-naphthalic anhydride), which are known as safeners in corn seed dressings to prevent damage to thiocarbamate herbicides,
n) chromanoic acid derivatives such as "ACL 304415" (CAS registry No. 31541-57-8) (═ 2-84-carboxychroman-4-yl) acetic acid available from american cyanamid),
o) active compounds which, in addition to herbicidal action on harmful plants, also have safener action on plants, for example "penetryn (dimerate)" or "AMY-93" (PM, p.302-303) (═ S-1-methyl-1-phenylethylpiperidine-1-thiocarboxylate), "diuron (daimuron)" or "ASK 23" (PM, p.247) (═ 1- (1-methyl-1-phenylethyl) -3-p-tolylureｃA), "cumyluron (cumyluron)", "jc-940" ((3- (2-chlorophenylmethyl) -1- (1-methyl-1-phenyl-ethyl) ureｃA, see JP- ｃA-60087254), "benzophenone (methoxyphenon)" or "ANK 049" (═ 3,3' -dimethyl-4-methoxy-benzophenone), "CSB" (═ 1-bromo-4- (chloromethylsulfonyl) benzene) (CAS registry No. 54091-06-4, available from Kumiai).
The safener is preferably one or more of isoxadifen (CAS: 163520-33-0), cyprosulfamide (CAS: 221667-31-8), mefenpyr (CAS: 135590-91-9), cloquintocet (CAS: 99607-70-2), gibberellic acid (CAS: 7-06-5), furilazole (CAS: 121776-33-8) and metacamifen (CAS: 129531-12-0).
The compositions of the present invention may be diluted or used directly by the user prior to use. The formulation can be prepared by conventional processing methods, i.e., mixing the active substance with a liquid solvent or solid carrier, and adding one or more surfactants such as dispersants, stabilizers, wetting agents, binders, defoamers, etc.
The specific preparation of the weeding composition is dispersible oil suspending agent, water suspending agent, suspending emulsion, wettable powder, missible oil, water dispersible granule (dry suspending agent), emulsion in water and microemulsion.
In short, the compositions of the present invention may be mixed with solid and liquid additives conventionally used in prior art formulations.
The invention also provides an application of the weeding composition in weed control; and to provide a method of controlling unwanted plant growth comprising applying the herbicidal composition to a plant, part of a plant, plant seed, or area where a plant is growing.
In addition, the compositions according to the invention can be applied by spraying to the foliage of the plants to be treated, i.e. to the weeds, in particular to surfaces infested or susceptible to infestation by weeds.
When the herbicidal composition of the present invention is applied, an unexpected synergistic effect is obtained, and the herbicidal activity is more remarkable than the expected sum of the activities using individual herbicides, and the activities of the individual herbicides. The synergistic effect is manifested by reduced application rates, a broader spectrum of weed control, and a faster and longer lasting herbicidal action, which are desirable in the practice of weed control. These new compositions are clearly superior to existing herbicides in terms of the properties described, achieving reduced use and being more environmentally friendly.
The synergistic herbicidal composition of the invention also has the following advantages:
(1) the composition of the invention is environment-friendly and is easy to degrade in the environment.
(2) The weeding composition has low cost and convenient use, and has great economic and social benefits when being popularized and applied.
Detailed Description
The following examples are not intended to limit the invention, but merely to illustrate how the invention may be carried out. These examples show particularly significant effectiveness against certain weeds. Examples are as follows:
A) examples of the embodiments
1. Dispersible oil suspension concentrate of clomazone and pyraflufen-ethyl (20+10)
20 percent of clomazone, 10 percent of sulfuryl pyraflufen, 5 percent of calcium dodecyl benzene sulfonate, 6 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil-polyoxyethylene ether, 0.8 percent of organic bentonite and methyl oleate
2. Dispersible oil suspension concentrate of clomazone and anilofos (20+10)
20% of clomazone, 10% of anilofos, 5% of calcium dodecyl benzene sulfonate, 6% of fatty alcohol-polyoxyethylene ether, 6% of castor oil-polyoxyethylene ether, 0.8% of organic bentonite, 10% of 150# solvent oil and methyl oleate
3. Dichloroclomazone and oxyfluorfen dispersible oil suspension agent (20+6)
20% of clomazone, 6% of oxyfluorfen, 5% of calcium dodecyl benzene sulfonate, 6% of fatty alcohol-polyoxyethylene ether, 6% of castor oil-polyoxyethylene ether, 0.8% of organic bentonite, 12% of 150# solvent oil and methyl oleate
4. Dispersible oil suspension concentrate of clomazone and pyraclonil (20+7)
20 percent of clomazone, 7 percent of pyraclonil, 5 percent of calcium dodecyl benzene sulfonate, 6 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil-polyoxyethylene ether, 0.8 percent of organic bentonite and methyl oleate
5. Dichloroclomazone and terbutane water suspension concentrate (10+30)
10% of clomazone, 30% of terbutryn, 4% of polycarboxylate dispersant, 2% of fatty alcohol-polyoxyethylene ether, 0.1% of xanthan gum, 1% of magnesium aluminum silicate and water
6. Clomazone and amicarbazone aqueous suspension concentrate (20+15)
20% clomazone, 15% amicarbazone, 4% polycarboxylate dispersant, 2% fatty alcohol-polyoxyethylene ether, 0.12% xanthan gum, 1.2% magnesium aluminum silicate and water
7. Clomazone and prometryn water suspending agent (20+30)
20% clomazone, 30% prometryn, 4% polycarboxylate dispersing agent, 2% fatty alcohol-polyoxyethylene ether, 0.08% xanthan gum and water
8. Dispersible oil suspension concentrate of clomazone and butralin (5+17.5)
5 percent of clomazone, 17.5 percent of butralin, 5 percent of calcium dodecyl benzene sulfonate, 6 percent of fatty alcohol-polyoxyethylene ether, 6 percent of castor oil-polyoxyethylene ether, 15 percent of 150# solvent oil, 1.4 percent of organic bentonite, 1.2 percent of fumed silica and methyl oleate
9. Dispersible oil suspension concentrate of clomazone and topramezone (20+9)
20% of clomazone, 9% of benzoxaflutole, 5% of calcium dodecyl benzene sulfonate, 6% of fatty alcohol-polyoxyethylene ether, 6% of castor oil-polyoxyethylene ether, 15% of 150# solvent oil, 1.4% of organobentonite, 1.2% of fumed silica and methyl oleate
10. Dispersible oil suspension concentrate of clomazone and triazophone (20+12)
20% of clomazone, 12% of triazophone, 5% of calcium dodecyl benzene sulfonate, 6% of fatty alcohol-polyoxyethylene ether, 6% of castor oil-polyoxyethylene ether, 10% of 150# solvent oil, 0.8% of organic bentonite and methyl oleate
11. Dispersible oil suspension concentrate of clomazone and mesotrione (20+12)
20% of clomazone, 12% of mesotrione, 5% of calcium dodecyl benzene sulfonate, 6% of fatty alcohol-polyoxyethylene ether, 6% of castor oil-polyoxyethylene ether, 10% of 150# solvent oil, 0.8% of organic bentonite and methyl oleate
12. Dispersible oil suspension concentrate of clomazone and fluroxypyr (20+5)
20% of clomazone, 5% of flurtamone, 5% of calcium dodecyl benzene sulfonate, 6% of fatty alcohol-polyoxyethylene ether, 6% of castor oil-polyoxyethylene ether, 10% of 150# solvent oil, 1.2% of organic bentonite and methyl oleate
13. Dichloroisopyr
Figure BDA0001813336790000091
Dispersible oil suspending agent (20+3)
20% of clomazone and 3%
Figure BDA0001813336790000092
+ 5% of calcium dodecylbenzenesulfonate, 6% of fatty alcohol-polyoxyethylene ether, 6% of castor oil-polyoxyethylene ether, 10% of 150# solvent oil, 1.2% of organobentonite, 1.0% of fumed silica and methyl oleate
14. Dichloroclomazone and fluroxypyr ester dispersible oil suspending agent (20+1)
20% of clomazone, 1% of fluroxypyr ester, 5% of calcium dodecyl benzene sulfonate, 6% of fatty alcohol-polyoxyethylene ether, 6% of castor oil-polyoxyethylene ether, 10% of 150# solvent oil, 1.2% of organobentonite, 1.0% of fumed silica and methyl oleate
15. Dichloroisoproxen and cinmethylin dispersible oil suspending agent (20+2)
20% of clomazone, 2% of suberin, 5% of calcium dodecyl benzene sulfonate, 6% of fatty alcohol-polyoxyethylene ether, 6% of castor oil-polyoxyethylene ether, 10% of 150# solvent oil, 1.2% of organobentonite, 1.0% of fumed silica and methyl oleate
The processing equipment of the aqueous suspending agent comprises: mixing kettles, colloid mills, sand mills, shearing machines and the like.
The processing process of the aqueous suspending agent comprises the following steps: putting all materials into a mixing kettle, stirring and mixing, passing through a colloid mill, then entering a sand mill for three-stage sand milling, finally uniformly shearing in a shearing machine, and transferring to a storage tank for filling after the test is qualified.
The processing equipment of the dispersible oil suspending agent comprises the following steps: mixing kettles, colloid mills, sand mills, shearing machines and the like.
The processing process of the dispersible oil suspending agent comprises the following steps: putting all materials into a mixing kettle, stirring and mixing, passing through a colloid mill, then entering a sand mill for three-stage sand milling, finally uniformly shearing in a shearing machine, and transferring to a storage tank for filling after the test is qualified.
B) Test of drug efficacy
Spraying treatment of stems and leaves after seedling:
1) test conditions
1.1) test target
The barnyard grass is collected from Ningxia Pingluo, and the monochoria vaginalis is collected from Hunan Chansha. The weeds are cultured by a pot culture method, plastic nutrition bowls with the size of 180 х 140mm are placed in an enamel tray, surface soil (4/5) which is collected from a farmland and is dried and sieved is filled in the enamel tray, the soil humidity is controlled to be 20% at the initial stage, weed seeds with full and uniform seeds are selected, the weed seeds are soaked in warm water with the temperature of 25 ℃ for 6 hours, germination is accelerated in a biochemical incubator (dark) with the temperature of 28 ℃, the weed seeds which are just exposed to the white are uniformly placed on the surface of the soil, and then the enamel tray is covered with 0.5-1cm of soil according to the particle size of the seeds.
1.2) culture conditions
The method is carried out in a controllable sunlight greenhouse, the temperature is 20-30 ℃, the natural illumination is carried out, and the relative humidity is 57-72%. The soil type is loam, the organic matter content is 1.63%, the pH value is 7.1, the alkaline hydrolysis nitrogen is 84.3mg/kg, the quick-acting phosphorus is 38.5mg/kg, and the quick-acting potassium is 82.1 mg/kg.
1.3), instrumentation
3WP-2000 model walking spray tower, Minn Jing agricultural machinery research institute of agricultural department. Ten thousandth electronic balance type GA10 (germany); ZDR2000 intelligent data recorder (hangzhou ze large instruments ltd); SPX type intelligent biochemical incubator (Ningbo Jiangnan Instrument factory).
2) Design of experiments
2.1), reagents
The required active ingredients, topramezone and tembotrione, are produced by the company, and others are purchased by the reagent company. The raw medicines are all diluted by using an emulsifier Tween-80 aqueous solution with the content of 0.1 percent and taking acetone as a solvent.
2.2) test treatment
2.2.1), dose setting
When determining the ratio or content of the component A and the component B, the main use purpose of the formula is also considered according to the action characteristics of the two medicaments and the measurement of toxicity and the like. On the basis of preliminary experiments, A, B active ingredients are respectively used singly and mixed in different amounts. Water without drug, containing the same solvent and emulsifier was used as a blank.
2.2.2), test repetition
Each treatment was repeated 4 times, 3 pots each time, 20 weed seeds were sown per pot, 60 plants each time.
2.3) treatment method
2.3.1), treatment time and number of times
The test was performed 1 time in total. And (3) thinning after 1-leaf stage of weeds, keeping 15 weeds in each pot, keeping 45 weeds in each treatment, and then continuously culturing until 2-3 leaves are treated.
232) Apparatus for use and method of administering medication
Uniformly placing the cultured test material on a 0.5m area2Spraying stem and leaf by using a 3WP-2000 model walking spray tower on the platform, wherein the liquid spraying amount is 450 kg/hectare. The spraying pressure is 0.3 MPa. And after all the liquid medicine is sprayed, closing the air valve, opening the spraying tower door after 30 seconds, and taking out the nutrition pot. Then the air valve is opened, 50mL of clean water is sprayed, and the liquid spraying pipe is cleaned.
3) Test method
The potting method is adopted. The weed cultivation is carried out according to 1.1 and the standard herbicide for indoor bioassay of pesticides. The application method is 2.3.2, and stem and leaf treatment method is adopted. After treatment, the cells were transferred to a greenhouse for conventional culture.
4) Data investigation and statistical analysis
4.1) investigation method
The complete survival weed seedlings are cut off along the soil surface by a blade by adopting an absolute number survey method, and the fresh weight of the weeds is weighed by an analytical balance. For the weeds that have died, the fresh weight is zero.
4.2), investigation time and number of surveys
The investigation was carried out 20 days after the treatment, and the total number of the investigations was 1.
4.3), statistical analysis of data
The theoretical fresh weight inhibition rate (E0 ═ X + Y-X Y/100) of each treatment mixed combination is calculated by a Gowing method, and then compared with the actually measured inhibition rate (E), the combined action type of the two mixed combinations on the weeds is evaluated, and when the E-E0 value is more than 10 percent, the effect is synergistic, when the E-E0 value is less than-10 percent, the effect is antagonistic, and when the E-E0 value is between-10 percent and 10 percent, the effect is additive. And the optimal proportion is determined according to factors such as actual control effect, characteristics of the herbicide, balance of the formula and the like. Wherein X is the fresh weight inhibition rate when the dosage of the active component A is P; y is the fresh weight inhibition rate of the active component B when the dosage is Q.
Soil sealing treatment:
1) test conditions
1.1) test target
Cardamine hirsute was collected from Jiangsu Xinghua.
1.2) culture conditions
The method is carried out in a controllable sunlight greenhouse, the temperature is 20-30 ℃, the natural illumination is carried out, and the relative humidity is 57-72%. The soil type is loam, the organic matter content is 1.63%, the pH value is 7.1, the alkaline hydrolysis nitrogen is 84.3mg/kg, the quick-acting phosphorus is 38.5mg/kg, and the quick-acting potassium is 82.1 mg/kg. The test soil was quantitatively loaded at 3/4 points of the pot and then poured from the bottom of the pot to completely wet the soil to saturation. Uniformly and quantitatively broadcasting the pretreated weed seeds to be tested on the surface, covering soil of 0.5-2cm according to the size of the seeds, and reserving the weed seeds for 24 hours after sowing.
1.3), instrumentation
Ten thousandth electronic balance type GA10 (germany); ZDR2000 intelligent data recorder (hangzhou ze large instruments ltd); SPX type intelligent biochemical incubator (Ningbo Jiangnan Instrument plant), pipettor and the like.
2) Design of experiments
2.1), reagents
The raw medicines are all diluted by using an emulsifier T-80 aqueous solution with the content of 0.1 percent by using acetone as a solvent.
2.2) test treatment
2.2.1), dose setting
When determining the ratio or content of the components A and the active component B, the main purpose of the formula should be considered in consideration of the action characteristics of the two medicaments and the toxicity thereof. On the basis of preliminary experiments, A, B active ingredients are respectively used singly and mixed in different amounts. Water without drug, containing the same solvent and emulsifier was used as a blank.
2.2.2), test repetition
Each treatment was repeated 4 times, 3 pots each time, and 30 weed seeds were sown in each pot.
3) Test method
The pot with seeding and soil covering is evenly placed in the area of 0.5m2The soil surface of the platform is sprayed by a 3WP-2000 type walking spray tower, and the liquid spraying amount is 675 kilograms per hectare. The spraying pressure is 0.3 MPa. And after all the liquid medicine is sprayed, closing the air valve, opening the spraying tower door after 30 seconds, and taking out the nutrition pot. Then the air valve is opened, 50mL of clean water is sprayed, and the liquid spraying pipe is cleaned.
4) Data investigation and statistical analysis
The spray treatment is the same as the spray treatment of the stem leaves after seedling, so the detailed description is omitted.
The statistical results are shown in tables 1-15 below.
TABLE 1A evaluation of the actual control and combination of Levonius chinensis (soil treatment) with Mixed Sulfuron pyrazoxazole
Figure BDA0001813336790000121
Table 2A evaluation of the actual control and combination of anilofos in combination with cardamine (soil treatment)
Figure BDA0001813336790000122
Figure BDA0001813336790000131
TABLE 3A evaluation of actual control and combination of Ethoxyfen-ethyl for cardamine (soil treatment)
Figure BDA0001813336790000132
TABLE 4A evaluation of actual control and combination of Bixapyroxad for cardamine (soil treatment)
Figure BDA0001813336790000133
TABLE 5 evaluation of actual control and Combined action of Terbutyrn mixture on cardamine (soil treatment)
Figure BDA0001813336790000134
TABLE 6A evaluation of actual control and Combined action of Mixed amicarbazone on cardamine (soil treatment)
Figure BDA0001813336790000135
Figure BDA0001813336790000141
TABLE 7 evaluation of actual control and Combined action of prometryn in combination with cardamine (soil treatment)
Figure BDA0001813336790000142
TABLE 8 evaluation of the actual control and Combined action of Setarian Shrub with Setarin mixture (soil treatment)
Figure BDA0001813336790000143
TABLE 9A evaluation of actual control and Combined action of Co-mingled topramezone on cardamine (soil treatment)
Figure BDA0001813336790000144
TABLE 10A evaluation of the actual control and Combined action of Mixed Triazolesulfonone on Cardamine
Figure BDA0001813336790000145
Figure BDA0001813336790000151
TABLE 11A evaluation of actual control and Combined action of Co-mingled mesotrione on cardamine (soil treatment)
Figure BDA0001813336790000152
Table 12A evaluation of actual control and Combined action of Mixed Fluopyrone on cardamine (soil treatment)
Figure BDA0001813336790000153
TABLE 13A compounding
Figure BDA0001813336790000154
Evaluation of actual controlling Effect and Combined action of barnyard grass (Stem and leaf treatment)
Figure BDA0001813336790000155
Figure BDA0001813336790000161
TABLE 14 evaluation of actual control and Combined action of Mesona chinensis Benth with Chlorpyrifos compounding (stem leaf treatment)
Figure BDA0001813336790000162
TABLE 15 evaluation of actual control and Combined action of Heptaculum zeylanicum by compounding cycloheptane ether for cardamine
Figure BDA0001813336790000163
C) Demonstration of field
The herbicide compositions prepared in examples 1 to 15 were used for field weed effect tests.
An exemplary popularization test was carried out in the test point of the Kyoho Xinghua in 2017. The weeds in the field are mainly: herba monochoriae vaginalis, Amaranthus retroflexus, Chenopodium album, semen Euphorbiae Lathyridis, Echinochloa crusgalli, etc.
The test method comprises the following steps:
soil treatment, before weed germination, a manual sprayer is used for adding water with the amount of 45 kg/667 m2The soil surface is uniformly sprayed.
Treating stems and leaves, namely, after the weeds are in the 3-4 leaf stage, manually spraying the weeds with a sprayer, and adding 30 kg of water per 667m2The stem and leaf are sprayed evenly.
The specific test agents and doses are detailed in table 16, with a cell area of 50 square meters, repeated 4 times per treatment. The control effect 20 days after application is shown in Table 16.
Figure BDA0001813336790000171
Table 16 shows exemplary field effects of the compounded compositions
Figure BDA0001813336790000172
Figure BDA0001813336790000181
Through a large number of tests and explorations, the invention unexpectedly discovers that the composition is used for preventing and removing weeds such as the monochoria vaginalis, the Amaranthus retroflexus, the chenopodium quinoa, the moleplant seeds, the barnyard grass and the like, has a surprising and unexpected synergistic effect, is more remarkable under a low dosage, can reduce the dosage and reduce the pollution to the environment, is reasonably compounded, reduces the agricultural cost, is efficient for ALS and ACCase inhibitor resistant weeds, and has a good application prospect. Meanwhile, the herbicide composition shows good selectivity and excellent synergistic effect in wheat fields, corn fields, paddy fields, peanuts, sugarcane, sorghum, millet, potatoes, rape, soybeans, cotton, vegetables, bluegrass, tall fescue, zoysia japonica and other plants through tests, and can be developed into herbicide mixtures with wide market value.

Claims (14)

1. A herbicidal composition comprising clomazone, characterized by comprising a herbicidally effective amount of an active ingredient A and an active ingredient B, wherein,
the active component A is clomazone;
the active ingredient B is selected from one of the following compounds:
HPPD inhibitors: benzoxaflutole, triazasulam;
wherein when B is topramezone, the weight ratio of A, B is 1-100: 10-1;
when the B is the triazophone, the weight ratio of A, B is 1-100: 30-1.
2. The herbicidal composition comprising clomazone according to claim 1,
when the B is the topramezone, the weight ratio of A, B is 1-80: 10-1;
when the B is the triazophone, the weight ratio of A, B is 1-80: 30-1.
3. The herbicidal composition comprising clomazone according to claim 2,
when the B is the topramezone, the weight ratio of A, B is 1-50: 10-1;
when the B is the triazophone, the weight ratio of A, B is 1-50: 30-1.
4. The herbicidal composition comprising clomazone as claimed in claim 3,
when the B is the topramezone, the weight ratio of A, B is 1-30: 10-1;
when the B is the triazophone, the weight ratio of A, B is 1-30: 30-1.
5. The herbicidal composition comprising clomazone according to claim 4,
when the B is the topramezone, the weight ratio of A, B is 1-10: 10-1;
when the B is the triazophone, the weight ratio of A, B is 1-10: 10-1.
6. The herbicidal composition containing clomazone as claimed in any one of claims 1 to 5, wherein A, B is contained in the herbicidal composition in an amount of 1 to 95% by mass based on the total amount.
7. The herbicidal composition containing clomazone dichloride according to claim 6, wherein the content of A, B in the herbicidal composition is 10 to 80% by mass of the total amount.
8. The herbicidal composition comprising clomazone as claimed in any one of claims 1 to 5, wherein conventional adjuvants are further included in the herbicidal composition.
9. The herbicidal composition comprising clomazone as claimed in claim 8, wherein said conventional adjuvants comprise carriers, surfactants.
10. The herbicidal composition comprising clomazone as claimed in any one of claims 1 to 5, wherein the herbicidal composition further comprises at least one safener.
11. A herbicidal composition according to claim 10, characterized in that the safener is selected from one or more of isoxadifen, cyprosulfamide, mefenpyr, cloquintocet, gibberellic acid, furilazole, mecamifen.
12. The herbicidal composition containing clomazone as claimed in any one of claims 1 to 5, wherein the formulation of the herbicidal composition is dispersible oil suspension, aqueous suspension, suspoemulsion, wettable powder, emulsifiable concentrate, water dispersible granule, aqueous emulsion or microemulsion.
13. Use of a herbicidal composition comprising clomazone as claimed in any of claims 1 to 12 for controlling weeds.
14. A method for controlling unwanted plant growth, which comprises applying the herbicidal composition comprising clomazone as claimed in any one of claims 1 to 12 to plants or an area where plants grow.
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