CN108064865A - A kind of Herbicidal combinations - Google Patents

A kind of Herbicidal combinations Download PDF

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Publication number
CN108064865A
CN108064865A CN201611002532.4A CN201611002532A CN108064865A CN 108064865 A CN108064865 A CN 108064865A CN 201611002532 A CN201611002532 A CN 201611002532A CN 108064865 A CN108064865 A CN 108064865A
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herbicidal combinations
pyraclonil
chlorine
mesotrione
undesirable plant
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CN201611002532.4A
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Chinese (zh)
Inventor
罗昌炎
詹姆斯.T.布里斯托
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Jiangsu Rotam Chemical Co Ltd
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Jiangsu Rotam Chemical Co Ltd
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Priority to CN201611002532.4A priority Critical patent/CN108064865A/en
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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
    • A01N43/90—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
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00—Protecting plants
    • 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
    • A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
    • A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
    • A01N39/04—Aryloxy-acetic acids; Derivatives thereof
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Engineering & Computer Science (AREA)
  • Plant Pathology (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Agronomy & Crop Science (AREA)
  • Toxicology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The present invention provides a kind of Herbicidal combinations, and active component is made of mesotrione, pyraclonil, 2 first, 4 chlorine, and the mesotrione, pyraclonil, the weight proportion of 2 first, 4 chlorine are 1 10:1‑15:1‑30.The invention further relates to the Herbicidal combinations in the purposes of prevention unifacial leaf and the undesirable plant growth of broadleaf weed, the purposes of undesirable plant growth particularly in cereal crops are prevented.The present invention also provides a kind of method for preventing undesirable plant growth, including undesirable plant or its growth place is made contacts with the Herbicidal combinations of the present invention of herbicidally effective amount or into soil using the Herbicidal combinations of the invention of herbicidally effective amount to prevent from being not intended to the germination of plant or growth.

Description

A kind of Herbicidal combinations
Technical field
The invention belongs to pesticide fields；The present invention relates to a kind of Herbicidal combinations；The invention further relates to a kind of controls not to wish The method of the plant growth of prestige.
Background technology
The prevention of agricultural weed is always the problem of being concerned about the most in agricultural production and is important.Protect crops from inhibiting The weeds of crop growth and the infringement of other vegetation are to continue the problem in agricultural.
The use of chemical herbicide is the one of the important signs that of agricultural modernization.In recent years, the sales volume of herbicide increases year by year Add, administration area also expands year by year.But as the large area of numerous herbicide kinds persistently uses, lead to the problem of it is many, Such as Weed Resistance problem starts to show especially, the resistance problem of especially elder weed is especially prominent；In addition, herbicide single dose effect side The problems such as formula is single, the lasting period is short is also than more prominent.Therefore it provides a kind of weeding scope is wide, selectivity is by force and to the anti-medicine of weeds The property smaller release weedicide of pressure is active demand.
Pyraclonil（Pyraclonil, CAS NO. 158353-15-2）, chemical name is： 1-（3- chloro- 4,5,6,7- Tetrahydro-pyrazole simultaneously [1,5-a] pyridine -2- bases）- 5- [methyl（Propargyl] amino] pyrazoles -4- nitriles.Pyraclonil is by German first Spirit exploitation, has been described in WO9408999.Pyraclonil is to barnyard grass and simultaneous annual tool awns cyperus iria Section's firefly Lin, needle spikesedge herb；The wide scopes weeds such as broad leaved weed Chinese herbaceous peony shape Monochoria korsakowii, Procumbent Falsepimpernel and angustifolia arrowhead herb, water chestnut for many years have Very high activity.
Mesotrione（Mesotrione, CAS NO. 104206-82-8）, it is prompt sharp Kanggong department 1984 by sulphur 2nd three ketones herbicide kind of the structural modification exploitation of humulone.Mesotrione is as absorbability, broad spectrum activity cornfield weeding Agent has and tags and systemic action；It after susceptible weeds touch the medicament, conducts, generates in plant xylem and bast Alphosis, it is slowly dead thereafter.Mesotrione is mainly used for preventing and kill off corn field annual broadleaf weed and some grass family are miscellaneous Grass, such as piemarker, Siberian cocklebur, thorn amaranth, Chenopodium weeds, Polygonum weeds, summer cypress, leaf mustard, barnyard grass, chickweed, black nightshade, lady's-grass are a variety of miscellaneous Grass；Mesotrione is not only to corn safety but also to environment, succession crop safety.
2 first, 4 chlorine, English name MCPA, chemical name are：2-methyl-4-chlorophenoxyacetic acid, chemical structural formula are：
2 first, 4 chlorine is widely used on the crops such as rice, corn, wheat, for preventing and kill off broad leaved weed, has to crop good Security.2 first, 4 chlorine is phenoxy acetic acid class selectivity Uptake and translocation hormone like herbicide, is easily absorbed and is conducted by root and leaf portion, breaks The conducting tissue of bad dicotyledon makes its growth development be interfered, and cauline leaf distortion, basal part of stem expands thicker or cracking, Swelling, it is mildew and rot and dead to split.2 first, 4 chlorine, which is suitable for rice, can prevent and kill off most of sedge weed and broad leaved weed.
The combined administration of known some different herbicides with specific effect may cause the activity of herbicide components It is improved compared with simple addition.The activity, which improves, is also referred to as synergistic function or synergistic active.Therefore The rate of application of weeding active compound needed for prevention noxious plant can be reduced.
The method of most-often used increase activity of weeding and the herbicidal spectrum for widening existing herbicide is that have two or more The herbicidal active compounds for having different activity of weeding mix.When the effect of the mixture of two or more ingredients is more than each ingredient It is expected that during effort levels, we term it " synergistic functions "；The effect of the mixture of two or more ingredients less than it is each into During the expection effort levels divided, we term it " antagonisms "；The effect of the mixture of two or more ingredients and each ingredient Expection effort levels it is identical when, we term it " additions ".However, due to herbicidal performance, absorptivity, transfer, metabolism Etc. difference, the activity of weeding of most of mixtures singly applying less than each ingredient.Two or more herbicidal active compounds Synergistic effect present in Herbicidal mixture is only visible in some circumstances.
The content of the invention
The invention aims to provide a kind of Herbicidal combinations so that those skilled in the art crop by once or After applying these herbicides several times a variety of weeds or a certain uncontrollable weeds species is controlled to show synergistic action effect. The present invention is obtained by the way that mesotrione, pyraclonil, 2 first, 4 chlorine are combined needed for technical staff in a particularly advantageous manner Weeds distribution it is horizontal or even including uncontrollable some weeds species.Moreover, it can significantly be dropped using the present composition The amount of application of single component in low combination does not generate unacceptable toxicity to the phytotoxicity of crop.
For this purpose, present invention employs following technical schemes：
The present invention provides a kind of Herbicidal combinations, active component is made of mesotrione, pyraclonil, 2 first, 4 chlorine, described Mesotrione, pyraclonil, the weight proportion of 2 first, 4 chlorine are 1-10:1-15:1-30 is preferably 1-10:1-15:1-25, it is more excellent Select 1-10:1-15:1-20；More preferable 1-10:1-10:1-15；More preferred 1-5:1-5:1-15；More preferred 1-5:1-5:1- 10。
The Herbicidal combinations of the present invention, active component are made of mesotrione, pyraclonil, 2 first, 4 chlorine, the nitre sulphur Humulone, pyraclonil, the weight proportion of 2 first, 4 chlorine can also be 1:1:1,1:1:2, 1:1:5,1:2.5:5,1:5:5,1:15: 5,1:1:10,1:5:10,1:10:10,1:1:15,1:15:25,1:2.5:30,2.5:1:1,5:1:1,10:1:1,1:5:1,1: 10:1,1:1:15,5:1:1,5:5:1,5:10:1,5:10:15;10:1:1,10:5:1,1:1:30,1:15:1,1:15:30,1: 1.5:3。
2 first, 4 chlorine can exist as the acid, can also the form of its salt or ester exist.
2 first, 4 chlorine can be 2 first, 4 chlorine isopropyl acid, Thistrol, Thistrol butyl ester, the different monooctyl ester of 2 first, 4 chlorine, 2 first 4 Chloroethene thioesters, 2 first, 4 chlorine thioethyl ester, 2 first, 4 chlorine sodium salt, 2 first, 4 chlorine sylvite, 2 first, 4 chlorine isopropyl amine salt.
The present invention provides a kind of Herbicidal combinations, and active component is made of mesotrione, pyraclonil, 2 first, 4 chlorine, also Including filler and/or surfactant.
In the Herbicidal combinations, the mesotrione, pyraclonil, the total amount of 2 first, 4 chlorine account for the Herbicidal combinations with The 1%-90% of weight meter.
In the Herbicidal combinations, the mesotrione, pyraclonil, the total amount of 2 first, 4 chlorine account for the Herbicidal combinations with The 5%-80% of weight meter.
In the Herbicidal combinations, the mesotrione, pyraclonil, the total amount of 2 first, 4 chlorine account for the Herbicidal combinations with The 10%-80% of weight meter.
In the Herbicidal combinations, mesotrione, pyraclonil, the total amount of 2 first, 4 chlorine account for the Herbicidal combinations with weight The 20%-80% of meter.
In the Herbicidal combinations, mesotrione, pyraclonil, the total amount of 2 first, 4 chlorine account for the Herbicidal combinations with weight The 30%-80% of meter.
The mesotrione, pyraclonil, the total amount of 2 first, 4 chlorine can also account for the Herbicidal combinations by weight 1%, 2%、3%、4%、5%、6%、7%、8%、9%、10%、11%、12%、13%、14%、15%、16%、17%、18%、19%、20%、21%、22%、 23%、24%、25%、26%、27%、28%、29%、30%、31%、32%、33%、34%、35%、36%、37%、38%、39%、40%、41%、 42%、43%、44%、45%、46%、47%、48%、49%、50%、52%、54%、56%、58%、60%、62%、64%、66%、68%、70%、 72%th, 74%, 76%, 78%, 80%, 82%, 84%, 86%, 88% or 90%.
The dosage form of the Herbicidal combinations is：Wettable powder, water-soluble granule, water-soluble liquor, missible oil, suspending agent, It is microcapsules, microemulsion, aqueous emulsion, suspended emulsion, microcapsule suspension-suspendinagent agent, water dispersible granules, ultra low volume liquids, tablet, low Capacity dispersible granule, pill or dry suspending agent.
The Herbicidal combinations may also include safener, and the safener is 1,8- naphthalic anhydrides（1,8- Naphthalenedicarboxylicanhydride）, benoxacor（benoxacor）, fenchlorazole（fenchlorazole- ethyl）, furilazole（Furilazole）, oxalane（2-dichloromethyl-2-methyl-1,3- dioxolane）, cyometrinil（Cyometrinil）, oxabetrinil（Oxabetrinil）, fluxofenim（Fluxofenim）, solution grass Pyridine（Fenclorim）, flurazole（Flurazole）Or desorpenic（Acetamide）, isoxadifen（Isoxadifen）, pyrrole Azoles cloquitocet_mexyl（Mefenpyr-diethyl）At least one of, the safener is compared with mesotrione, pyraclonil, 2 first 4 The weight proportion of chlorine active component total amount is 1:100-20:1.
A kind of purposes of Herbicidal combinations in undesirable plant growth is prevented.
A kind of Herbicidal combinations are in the purposes of prevention unifacial leaf and the undesirable plant growth of broadleaf weed.
A kind of Herbicidal combinations are used to prevent the purposes of undesirable plant growth in useful crop.The Herbicidal combination Selectivity use of the object in various crops is possible.Such as rape, beet, soybean, cotton, barley, wheat, rye, It is used in oat, corn, rice and broomcorn millet.The Herbicidal combinations of the present invention are particularly suitable as the selective herbicidal of rice crop Agent.
The Herbicidal combinations of the present invention can also be used to control the weeds in perennial crop.These crops have for example gloomy Woods, ornamental trees, fruit, rattan wood plant, lemon, nut, banana, coffee, tea, rubber, oil palm, cocoa, berry and golden hop Grass planting garden.
The Herbicidal combinations of the present invention show good activity of weeding to unifacial leaf and broadleaf weed.
A kind of Herbicidal combinations are used to prevent the purposes of undesirable plant growth, the Herbicidal combination in useful crop Object is resistant to by the useful crop.
A kind of method for preventing undesirable plant growth, including：（i）Before undesirable plant germination（Before bud）； （ii）After undesirable plant germination（After bud）；Or（iii）（i）With（ii）When, by the present invention's of herbicidally effective amount Herbicidal combinations are applied to undesirable plant or its growth place.
The Herbicidal combinations of the present invention are applied to undesirable plant by a kind of method for preventing undesirable plant growth Or its growth place.
A kind of method for preventing undesirable plant growth, including by the Herbicidal combinations of the present invention useful crop plant It is applied in the presence of other reproductive parts of strain, the seed of useful crop or useful crop；It is preferred that the Herbicidal combinations by the present invention Make undesirable plant or its growth place with removing before useful crop is sowed or germinates or after planting before germination or after germination The Herbicidal combinations contact of a effective amount of present invention of grass.
A kind of method for preventing undesirable plant growth includes the weeding of from the present invention to soil application herbicidally effective amount Composition is to prevent the germination of undesirable plant or growth.
Compared with prior art, the present invention at least has the advantages that：
（1）By once or several times using controlled after the Herbicidal combinations of the present invention a variety of weeds or it is a certain be difficult to control it is miscellaneous Grass seeds class shows synergistic action effect；
（2）The present invention is by the way that mesotrione, pyraclonil, 2 first, 4 chlorine are compounded so that the activity of the Herbicidal combinations The sum of activity when each being applied more than these three reactive compounds；
（3）The present invention uses mesotrione, pyraclonil, 2 first, 4 chlorine three with, obtains technical staff in a particularly advantageous manner Required Weeds distribution is horizontal or even including uncontrollable some weeds species.Moreover, application Herbicidal combinations of the present invention can To significantly reduce the amount of application of single component in composition.
Specific embodiment
The present invention provides a kind of Herbicidal combinations, active component is made of mesotrione, pyraclonil, 2 first, 4 chlorine, The mesotrione, pyraclonil, the weight proportion of 2 first, 4 chlorine are 1-10:1-15:1-30 is preferably 1-10:1-15:1-25, More preferable 1-10:1-15:1-20；More preferable 1-10:1-10:1-15；More preferred 1-5:1-5:1-15；More preferred 1-5:1- 5:1-10。
The Herbicidal combinations of the present invention, active component are made of mesotrione, pyraclonil, 2 first, 4 chlorine, the nitre sulphur Humulone, pyraclonil, the weight proportion of 2 first, 4 chlorine can also be 1:1:1,1:1:2, 1:1:5,1:2.5:5,1:5:5,1:15: 5,1:1:10,1:5:10,1:10:10,1:1:15,1:15:25,1:2.5:30,2.5:1:1,5:1:1,10:1:1,1:5:1,1: 10:1,1:1:15,5:1:1,5:5:1,5:10:1,5:10:15;10:1:1,10:5:1,1:1:30,1:15:1,1:15:30。
2 first, 4 chlorine can exist as the acid, can also the form of its salt or ester exist.
2 first, 4 chlorine can be 2 first, 4 chlorine isopropyl acid, Thistrol, Thistrol butyl ester, the different monooctyl ester of 2 first, 4 chlorine, 2 first 4 Chloroethene thioesters, 2 first, 4 chlorine thioethyl ester, 2 first, 4 chlorine sodium salt, 2 first, 4 chlorine sylvite, 2 first, 4 chlorine isopropyl amine salt.
It has unexpectedly been discovered that, compared with the rate of application of individual compounds, mesotrione, pyraclonil, 2 first, 4 chlorine Combination synergistic effect to Weeds distribution is shown when equal to or less than the rate of application, especially to barnyard grass (Echinochloa crusgalli (L.) Beauv.), moleplant seed（（ Leptochloa Beauv. ）, lady's-grass (Digitaria spp.), chickweed (Stellaria media), arrowhead (Sagittaria sagittifolia), Amaranthus retroflexus (Amaranthus retroflexus), volume stem smartweed (Fallopia (ex Polygonum) Convolvulus), piemarker (Abuthilon theophrasti), rhizoma alismatis (Oriental Waterplantain Rhizome), Monochoria vaginalis (Duck Tongue grass), Monochoria korsakowii (Monochoria korsakowii), Procumbent Falsepimpernel (Lindernia procumbens), black nightshade (Solanum nigrum L.), firefly Lin (Scirpus juncoides Roxb), difformed galingale herb (Cyperus difformis L.), lamb's-quarters (Chenopodium alum L.), wild oat (Avena fatua L.), Veronica persica（ Veronica persica）Control show apparent synergistic effect.
" synergistic effect " can reduce the rate of application of single herbicide, the effectiveness higher under identical rate of application, and prevention is also Not controlled kind, prevention extend to single herbicide or a variety of herbicide tolerants or resistant kind, using the phase and/ Or the required number that is administered alone is reduced；And for user, advantageously miscellaneous is obtained in economic and ecology Careless countermeasure system.
Pyraclonil rate of application can change in a wide range, such as in 10g-1000g A.I./ha（Hereinafter, A.I./ha Represent " active material/hectare "=reactive compound meter based on 100% purity）.With the rate of application of 10g-300g A.I./ha Using when, when prior to seeding, before plantation or before bud and after bud it is middle using pyraclonil when, with relatively wide to be prevented Noxious plant is composed.
The rate of application of mesotrione can change in a wide range, such as in 10g-2000gA.I./ha.With 10g-500g A.I./ha rate of application application when, when prior to seeding, plantation before or bud before and bud after it is middle using mesotrione when, with phase Wider noxious plant to be prevented is composed.
The rate of application of 2 first, 4 chlorine can change in a wide range, when being applied with the rate of application of 100g-5000g A.I./ha, when Prior to seeding, before plantation or before bud and after bud during 24 chlorine of first of middle use, with relatively wide noxious plant spectrum to be prevented.
The Herbicidal combinations of the present invention can also include one or more and mesotrione, pyraclonil, 2 first, 4 chlorine component not With and also serve as other reactive compounds of selective herbicide.
The Herbicidal combinations of the present invention can also include the various reactive compounds of other components, for example, selected from safener, kill Epiphyte pharmaceutical, insecticide, acaricide, nematicide, bird repellent, soil conditioner, nutrient for plants (fertilizer), Yi Jijie Structure is different from the herbicide and plant growth regulator of 4 chlorine of mesotrione, pyraclonil and 2 first.
Preferably, the different types of agrochemically active compound includes Acetochlor (acetochlor), Acibenzolar (acibenzolar), diazosulfide (acibenzolar-S-methyl), acifluorfen (acifluorfen), aclonifen (aclonifen), alachlor (alachlor), allidochlor (allidochlor), alloxydimsodium (alloxydim), ametryn (ametryn), ammonia mesotrione (amicarbazone), amidosulfuron (amidosulfuron), chlorine Fampridine acid (aminopyralid), Amrol (amitrole), Amcide Ammate (ammonium sulfamate), ancymidol (ancymidol), anilofos (anilofos), sulphur grass clever (asulam), atrazine (atrazine), azafenidin (azafenidin), azimsulfuron (azimsulfuron), benfuresate (benfuresate), bensulfuron-methyl (bensulfuron), bentazone (bentazone), benzfendizone (benzfendizone), benzobicylon (benzobicyclon), benzofenap (benzofenap), fluorine sulfanilamide (SN) careless (benzofluor), fluorine benzofenap (bicyclopyrone), bispyribac-sodium (bispyribac-sodium), Brominal (bromoxynil), butafenacil (butafenacil), butralin (butralin), cafenstrole (cafenstrole), carbetamide (carbetamide), chlorine are phonetic Sulphur grand (chlorimuron, chlorimuron-ethyl), cycocel (chlormequat chloride), chlortoluron (chlorotoluron), chlorine sulphur grand (chlorsulfuron), cinmethylin (cinmethylin), cinosulfuron (cinosulfuron), clethodim (clethodim), clomazones (clomazone), clomeprop (clomeprop), two Chloropyridine acid (clopyralid), cyanazine (cyanazine), cyclanilide (cyclanilide), cypromisulfuron (cyclosulfamuron), cycloxydim (cycloxydim), ring cafenstrole (cyprazole), daimuron (daimuron/ Dymron), Mediben (dicamba), diclofop-methyl (diclofop-methyl), smart diclofop-methyl (diclofop-P-methyl), Diclosulam (diclosulam), acetyl alachlor (diethatyl, diethatyl-ethyl), diflufenican (diflufenican), (diflufenzopyr, diflufenzopyr-sodium), oxazoles are grand for diflufenzopyr (dimefuron), dimepiperate (dimepiperate), dimethachlor (dimethachlor), dimethametryn (dimethametryn), diphenamide (diphenamid), dipropetryn (dipropetryn), diquat dibromide (diquat), enemy Careless grand (diuron), ethametsulfuron (ethametsulfuron, ethametsulfuron-methyl), ethephon (CEPHA),2-(chloroethyl) phosphonic acid (ethephon), ethidimuron (ethidimuron), ethoxysulfuron (ethoxysulfuron), ethobenzanid (etobenzanid), oxazoles diclofop-methyl (fenoxaprop), fenoxaprops (fenoxaprop-P), oxazole diclofop-methyls (fenoxaprop-ethyl), fentrazamide (fentrazamide), flazasulfuron (flazasulfuron), double fluorine sulphurs grass Amine (florasulam), fluazifop (fluazifop), efficient fluazifop (fluazifop-P), fluazifop-P-butyl (fluazifop-butyl), efficient fluazifop butyl ester (fluazifop-P-butyl), fluazolate (fluazolate), Flucarbazonesodium (flucarbazone, flucarbazone-sodium), flucetosulfuron (flucetosulfuron), flufenacet (flufenacet), flumetralim (flumetralin), Flumetsulam (flumetsulam), flumioxazin (flumioxazin), alkynes grass amine (flumipropyn), fluometuron (fluometuron), fluorodifen (fluorodifen), fluoroglycofen-ethyl (fluoroglycofen, fluoroglycofen-ethyl), flupoxam (flupoxam), flupyrsulfuron-methyl-sodium (flupyrsulfuron), fluridone (fluridone), fluorochloridone (flurochloridone), fluroxypyr (fluroxypyr), flurtamone (flurtamone), thiazole oxamide (fluthiamide), fomesafen (fomesafen), Glufosinate (glufosinate, glufosinate-ammonium), Glufosinate-P (glufosinate-P, glufosinate-P-ammonium), Glufosinate-P- sodium salts (glufosinate-P- Sodium), glyphosate (glyphosate), glyphosate-isopropylammonium (glyphosate-isopropylammonium), fluorine nitre Sulfonamide (halosafen), fluazifop-butyl (haloxyfop), smart fluazifop-butyl (haloxyfop--P), the spirit of fluorine pyrrole second standing grain (haloxyfop-ethoxyethyl), smart fluorine pyrrole second standing grain clever (haloxyfop-P-ethoxyethyl), haloxyfop-P-methyl (haloxyfop-methyl), haloxyfop-methyl (haloxyfop-P-methyl), hexazinone (hexazinone), miaow oxalic acid (imazamethabenz, imazamethabenz-methyl), imazamox (imazamox, imazamox- Ammonium), AC 263222 (imazapic), imazapyr (imazapyr, imazapyr-isopropylammonium), Imazaquin (imazaquin, imazaquin-ammonium), imazethapyr (imazethapyr, imazethapyr- Ammonium), imazosulfuron (imazosulfuron), inabenfide (inabenfide), indanofan (indanofan), iodine first Sulphur grand (iodosulfuron, iodosulfuron-methyl-sodium), ioxynil (ioxynil), isoproturon (isoproturon), Yi Evil acyl grass amine (isoxaben), Yi Evil chlorine humulone (isoxachlortole), Yi Evil grass ethers (isoxapyrifop), lactofen (lactofen), lenacil (lenacil), mefenacet (mefenacet), chlorine Sulphonyl grass amine (mefluidide), methyl piperidine (mepiquat-chloride), mesosulfuronmethyl (mesosulfuron, Mesosulfuron-methyl), methabenzthiazuron (methabenzthiazuron), metamitron (metamitron), pyrazoles Careless amine (metazachlor), methazole (methazole), Sulfonylurea (methiopyrsulfuron), methoxyphenone (methoxyphenone), methyldymron (methyldymron), isopropyl methoxalamine (metolachlor), smart isopropyl first grass Amine (S-metolachlor), metosulam (metosulam), metoxuron (metoxuron), metribuzin (metribuzin), first Sulphur grand (metsulfuron, metsulfuron-methyl), molinate (molinate), monosulfmeturon (monosulfuron), Monosulfmeturon ester (monosulfuron ester), telvar (monuron), napropamide (napropamide), nicosulfuron (nicosulfuron), Evil humulones (oxadiazon), oxasulfuron (oxasulfuron), oxaziclomefones (oxaziclomefone), Oxyfluorfen (oxyfluorfen), paclobutrazol (paclobutrazol), paraquat (paraquat, paraquat dichloride), Huan Wu Evil humulones (pentoxazone), pethoxamid (pethoxamid), ammonia Chloropyridine acid (picloram), fluorine pyrrole acyl grass amine (picolinafen), pinoxaden (pinoxaden), piperophos (piperophos), pretilachlor (pretilachlor), probenazole (probenazole), profluazol (profluazol), profluralin (prifluraline), clefoxidim (profoxydim), prometryn (prometryn), enemy Barnyard grass (propanil), propazine (propazine), Chem hoe (propham), propisochlor (propisochlor), piperazine imidazoles Phonetic sulphur (propyrisulfuron), propyzamide (propyzamide), prosulfocarb (prosulfocarb), prosulfuron (prosulfuron), pyraclonil (pyraclonil), pyraflufen-ethyl (pyraflufen, pyraflufen-ethyl), the phonetic sulphur of pyrrole Grand (pyrazosulfuron, pyrazosulfuron-ethyl)), iso-propyl-ester nitrofen (pyribambenz-isopropyl), third Ester grass ether (pyribambenz-propyl), pyribenzoxim (pyribenzoxim), pyributicarb (pyributicarb), cyclic ester Careless ether (pyriftalid), KIH 6127 (pyriminobac, pyriminobac-methyl), Nylar (pyrimisulfan), Pyrithiobacsodium (pyrithiobac, pyrithiobac-sodium), pyroxasulfone, pyroxsulam (pyroxsulam), dichloro quinolinic acid (quinchlorac), quinmerac (quinmerac), quizalofop-ethyl (quizalofop), Quizalotop-ethyl (quizalofop-P), Quizalotop-ethyl ethyl ester (quizalofop-P-ethyl), rimsulfuron (rimsulfuron), benzene flumetsulam (saflufenacil), Zhong Dingtong (secbumeton), sethoxydim (sethoxydim), Tupersan (siduron), sulphur humulone (sulcotrione), sulfentrazone (sulfentrazone), sulfometuronmethyl (sulfometuron, sulfometuron-methyl), Thidiazuron (thidiazuron), thifensulfuronmethyl (thifensulfuron, thifensulfuron-methyl), benthiocarb (thiobencarb), tiocarbazil (tiocarbazil), triasulfuron (triasulfuron), triaziflam (triaziflam), tribenuron-methyl (tribenuron, tribenuron-methyl), trichloroacetic acid (TCA), trichlopyr (triclopyr), tridiphane (tridiphane), trifloxysulfuron (trifloxysulfuron, trifloxysulfuron-sodium), trefanocide (trifluralin), triflusulfuronmethyl (triflusulfuron), triflusulfuronmethyl methyl esters (triflusulfuron-methyl), three First grand (trimeturon), TrinexAN_SNacethyl (trinexapac, trinexapac-ethyl), tritosulfuron (tritosulfuron), uniconazole P (uniconazole).
The Herbicidal combinations of the present invention with the objects such as glyphosate, glufosinate-ammonium, Mediben, imidazolone, sulfonylureas, 2,4-D It is glyphosate, glufosinate-ammonium, Mediben, imidazolone, sulfonylureas or 2,4-D tolerant crops using crop when matter is used in combination.
Although the mesotrione, pyraclonil, 2 first, 4 chlorine have shown good or even enough in a large amount of crops Selectivity, in principle, in some crops, when particularly also being mixed with other smaller herbicides of selectivity, it is possible that To the phytotoxicity of crop plants.So combination comprising Herbicidal combinations according to the present invention and one or more safeners Object is particularly advantageous.The safener is used with the effective quantity that detoxifies, such as economically important crop or in planting fruit trees Garden（Plantation crops）The plant toxicity side effect of herbicide used in middle reduction.The economically important crop such as cereal （Wheat, barley, rye, oat, corn, rice and broomcorn millet）, sugar beet, sugar with sugarcane, rape, cotton and soybean, preferred paddy Class, specifically for rice.
The compound of safener is for example suitable for below（Including possible stereoisomer and agriculturally common ester or Salt）：1,8- naphthalic anhydrides（1,8-Naphthalenedicarboxylicanhydride）, benoxacor（benoxacor）, solution Careless azoles（fenchlorazole-ethyl）, furilazole（Furilazole）, oxalane（2-dichloromethyl-2- methyl-1,3-dioxolane）, cyometrinil（Cyometrinil）, oxabetrinil（Oxabetrinil）, fluxofenim （Fluxofenim）, fenclorim（Fenclorim）, flurazole（Flurazole）Or desorpenic（Acetamide）, Shuan Ben oxazoles Acid（Isoxadifen）, mefenpyrdiethyl（Mefenpyr-diethyl）At least one of.
Some known safeners are used as herbicide, and correspondingly, in addition to having herbicide effect to noxious plant, also rise To the effect of cover crop plant.
The weight ratio of Herbicidal combinations and safener generally depends on the rate of application of herbicide and the effect of the safener, And can change in a wide range, such as 90000:1-1:5000th, preferably 7000:1-1:1600th, especially 3000:1-1: 500th, it is particularly 1:100-20:In the range of 1.Safener can be matched somebody with somebody with mesotrione, pyraclonil and 2 first, 4 chlorine with finished product preparation System is supplied and used in the form of with the tank mix of the Herbicidal combinations.
Safener can be used for the seed material for anticipating cultivated plant（Seed dressing）Can prior to seeding or after penetrate into soil In.It can also individually or together with the Herbicidal combinations of the present invention be applied after plant germination.Plant or kind are handled with safener Sub- material is in principle from the influence of herbicide application time.It can also be by the way that herbicide and safener be administered simultaneously（Such as bucket mixes The form of object）Carry out the processing of plant.
The present invention provides a kind of purposes of Herbicidal combinations in undesirable plant growth is prevented.
The present invention provides a kind of Herbicidal combinations and is preventing and kill off monocotyledon weed and the undesirable plant growth of broadleaf weed Purposes.
The Herbicidal combinations of the present invention are to the economically important unifacial leaf of wide range and dicotyledonous harmful plants' such as broad-leaved Weeds, grassy weed or sedge, including there is excellent weeding to the resistant species of weeding active compound Activity, the weeding active compound are such as glyphosate, Glufosinate, atrazine, imidazolinone herbicide and sulfonylurea.
What be can be mentioned that can be by monocotyledon weed that the Herbicidal combinations of the present invention are prevented and dicotyledonous weed flora group Some representative specific examples, but it is not limited to some kinds.
The example of the weed species of the herbicidal composition useful effect is, for example, in monocotyledon weed with subordinate, Such as Echinochloa (Echinochloa spp.), Panicum (Panicum spp.), Poa L. (Poa spp), Sprangletop (Leptochloa spp.), Brachiaria (Brachiaria spp.), knotgrass (Digitaria spp.), setaria (Setaria spp.), Cyperus (Cyperus), Monochoria (Monochoria spp.), genus fimbristylis Fimbristylis, Sagittaria (Sagittaria spp.), Eleocharis (Eleocharis spp.), Scirpus (Scirpus Spp.), Waterplantain (Alisma spp.), leaf of bamboo Lepidium (Aneilema spp.), water screening spp (Blyxa spp.), eriocaulon buergerianum (Eriocaulon spp.), Potamogeton (Potamogeton spp.), Avena（ Avena）, amur foxtail category （Alopecurus）, millet category（Panicum）, Digitalis（Digitaria）, black Avena（Lolium）, Brome （Bromus）, Agropyron（Agropyron）, Sagittaria（Bromus）, Monochoria vaginalis category（Monochoria）, ischaemum （Ischaemum）, Potamogeton（Potamogeton）, cloth bag Nelumbo（Eichhornia）, Ah draping over one's shoulders draw grass belong to（Apera）Deng all Prevent very well.
The Herbicidal combinations of the present invention are particularly suitable for following monocotyledonous weed species：Oat（Avena sativa L.）, see Wheat ma（Alopecurus）, barnyard grass（ Echinochloa crus-galli）, moleplant seed（ Leptochloa Beauv. ）Dog tail Grass（Setaria viridis）, broomcorn millet（ Panicum miliaceum）, lady's-grass（Digitaria sanguinalis）, annual bluegrass (Poa annua), Brachiaria Griseb (Brachiaria), bromegrass (Bromus), nutgrass flatsedge (Cyperaceae), water plant (Fimbristylis milliacea (L) Vahl.), arrowhead (Sagittaria sagittifolia), Monochoria korsakowii ( Pontederiaceae), dichotomous fimbristylis herb (Fimbristylis), water chestnut（Eleocharis dulcis）, duckbilled grass（Ischaemum Indicum (Houtt.) Merr.), Monochoria vaginalis (Monochoria vaginalis), short arrowhead (Sagittaria Pygmaea), alisma canaliculatum (Alisma canaliculatum), firefly Lin (Scirpus juncoides Roxb).
In the case of broadleaf weed, activity profile is extended to subordinate, such as Polygonum (Polygonum spp.), successively Lepidium (Rotala spp.), Vandellia (Lindernia spp.), Bidens (Bidens spp.), sphenoclea (Sphenoclea spp.), horsefly eye belong to (Dopatrium spp.), Eclipta prostrata category (Eclipta spp.), Elatine ambigua (Elatine spp.), Gratiola (Gratiola spp.), ludwigia (Ludwigia spp.), Oenanthe (Oenanthe spp.), Ranunculus (Ranunculus spp.), damp chilly category (Deinostema spp.), Bedstraw （Galium）, section section Lepidium（Rotala）, Mimosa（Mimosa）, sinapsis alba category（Sinapis）, Stellaria（Stellaria）、 Anthemis（Matricaria）, small rotation Chrysanthemum（Galinsoga）, Chenopodium（Chenopodium）, mustard category（Brassica）, nettle Fiber crops belong to（Urtica）, Amaranthus（Amaranthus）, Portulaca（Portulaca）, Xanthium（Xanthium）, japanese bearbind genus （Convolvulus）, sweet potato category（Ipomea）, field mountain valley with clumps of trees and bamboo category（Sesbania）, Cirsium（Cirsium）, bristlethistle（Carduus）、 Sonchus（Sonchus）, Solanum（Solanum）, lower lip category（Lamium）, Veronica（Veronica）, abutilon （Abutilon）, Datura（Datura）And Viola（Viola）.
The Herbicidal combinations of the present invention are particularly suitable for following dicotyledonous weed species：Europe sinapsis alba (Sinapis), Lepidium apetalum (Lepidium apetalum), rattan (Galium aparine), chickweed (Stellaria media), german chamomile are drawn (Matricaria), yellow chamomile (Anthemis), root of bidentate achyranthes chrysanthemum (Galinsoga parviflora), lamb's-quarters (Chenopodium Quinoa), rape (Brassica rapa L.), nettle (Urtica fissa E. Pritz.), climbing groundsel (Senecio), Amaranth (Amaranthus gangeticus), purslane (Portulaca oleracea L.), Siberian cocklebur (Xanthium), Shi Hua （Convolvulus））, sweet potato (Ipomoea), knotweed (Polygonum), the field mountain valley with clumps of trees and bamboo (Sesbamia), artemisiifolia (Ambrosia), Ji (Cirsium), welted thistle (Carduus), sonchus oleraceus (Sonchus), eggplant (Solanum), weldering dish (Rorippa), Herba lamii barbati (Lamium), Veronica (Veronica), piemarker (Abutilon), Mandala (Datura), violet (Viola), opium poppy （Papaver）, corn flower (Centaurea) and chrysanthemum (Chrysanthemum).
The Herbicidal combinations of the present invention are particularly suitable for the monocotyledon weed and broadleaf weed of such as following kind：Barnyard grass (Echinochloa crusgalli (L.) Beauv.), moleplant seed（（ Leptochloa Beauv. ）, lady's-grass (Digitaria spp.), chickweed (Stellaria media), arrowhead (Sagittaria sagittifolia), Amaranthus retroflexus (Amaranthus retroflexus), volume stem smartweed (Fallopia (ex Polygonum) Convolvulus), piemarker (Abuthilon theophrasti), rhizoma alismatis (Oriental Waterplantain Rhizome), Monochoria vaginalis (Monochoria), Monochoria korsakowii (Monochoria korsakowii), Procumbent Falsepimpernel (Lindernia procumbens), black nightshade (Solanum nigrum L.), firefly Lin (Scirpus juncoides Roxb), difformed galingale herb (Cyperus difformis L.), lamb's-quarters (Chenopodium alum L.), wild oat (Avena fatua L.), Veronica persica（Veronica persica）.
It is used to prevent the purposes of undesirable plant growth in useful crop the present invention also provides a kind of Herbicidal combinations.
The Herbicidal combinations of the present invention can use on the farmland for for example cultivating following useful crop：
Cereal crops, such as including：Cereal (granule cereal) such as wheat (Triticum aestivum) and small wheat crops are such as Durum wheat (T.durum), one grained wheat (T.monococcum), emmer wheat (T.dicoccon) and spelt (T.spelta), rye (Secale cereale), triticale (Tritiosecale), barley (Hordeum vulgare)；It is beautiful Rice (Zea mays)；Sorghum (such as sugar grass (Sorghum bicolour))；Rice (Oryza (Oryza) such as rice (Oryza ) and African rice (Oryzaglaberrima) sativa；
Sugarcane；
Beans (Legumes (pulse family (Fabaceae))), such as including soybean (Glycine max.), peanut (Arachis Hypogaea) and legume crop such as pea (including pea (Pisum sativum), pigeonpea and cowpea), Kidney bean are (including broad bean (Vicia faba), black mixed coloured cowpea category (Vigna) and black Phaseolus (Phaseolus)) and hyacinth bean (Lens culinaris (lens culinaris var.))；
Cruciferae, for example, including Canola (cabbage type rape (Brassica napus)), rape (Brassica napus), Cabbage (B.oleracea var.), leaf mustard such as leaf mustard (B.juncea), Chinese cabbage (B.campestris), broadbeaked mustard (B.narinosa), black mustard (B.nigra) and Mediterranean open country blister beetle (B.tournefortii)；And turnip (Brassica rapa var.)；
Other broad leaf crops, such as including sunflower, cotton, flax, linseed, sugar beet, potato and tomato；
TNV crops (TNV：Tree, kernel and rattan), such as including grape, citrus, a kind of fruit, such as apple, pear, etc., such as apple and pears, coffee, American pistachios And oil palm, drupe, such as peach, almond, walnut, olive, cherry, Li Hexing；
Turf, herbage and pasture；
Onion and garlic；
Bulb ornamental plant such as tulip and narcissus；
Coniferous tree and deciduous tree such as Pinus (Pinus), fir, Oak Tree, maple, Fructus Corni, hawthorn, Malus spectabilis and Rhamnus (Rhamnus) (sandlwood)；
Garden ornamental plant such as petunia, marigold, rose and toad's-mouth.
The Herbicidal combinations of the present invention are particluarly suitable for wheat, barley, rye, triticale, durum wheat, rice, corn, sweet Sugarcane, sorghum, soybean, legume crop such as pea, Kidney bean and hyacinth bean, peanut, sunflower, sugar beet, potato, cotton, Btassica Crop, such as rape, Canola, leaf mustard, cabbage and turnip, turf, grape, a kind of fruit, such as apple, pear, etc., such as apple and pears, drupe, such as peach, apricot Benevolence, walnut, olive, cherry, Li Hexing, citrus, coffee, American pistachios, garden ornamental plant, as rose, petunia, marigold, Toad's-mouth, bulb ornamental plant such as tulip and narcissus, coniferous tree and deciduous tree for example Pinus, fir, Oak Tree, maple, Fructus Corni, The growth of undesirable plant is prevented and kill off/prevented in hawthorn, Malus spectabilis.
The present invention Herbicidal combinations be most suitable for for example rape, beet, soybean, cotton, rice, barley, wheat and It is used in other bread crops.
The Herbicidal combinations of the present invention can also be used to control the weeds in perennial crop.These crops have for example gloomy Woods, ornamental trees, fruit, rattan wood plant, lemon, nut, banana, coffee, tea, rubber, oil palm, cocoa, berry and golden hop Grass planting garden.
The Herbicidal combinations of the present invention can effectively prevent unifacial leaf and broadleaf weed, and substantially crop will not be generated Injury.
The Herbicidal combinations of the present invention are especially suitable for the growth for preventing the undesirable plant in rice crop.Such as this hair Bright Herbicidal combinations are to barnyard grass (Echinochloa crusgalli (L.) Beauv.), moleplant seed（（ Leptochloa Beauv. ）, lady's-grass (Digitaria spp.), chickweed (Stellaria media), arrowhead (Sagittaria Sagittifolia), Amaranthus retroflexus (Amaranthus retroflexus), volume stem smartweed (Fallopia (ex Polygonum) Convolvulus), piemarker (Abuthilon theophrasti), rhizoma alismatis (Oriental Waterplantain Rhizome), Monochoria vaginalis (Duck tongue grass), Monochoria korsakowii (Monochoria korsakowii), Procumbent Falsepimpernel (Lindernia procumbens), black nightshade (Solanum nigrum L.), firefly Lin (Scirpus juncoides Roxb), Difformed galingale herb (Cyperus difformis L.), lamb's-quarters (Chenopodium alum L.), wild oat (Avena fatua L.), Veronica persica（ Veronica persica）Control shows apparent synergistic function.
The Herbicidal combinations of the present invention also can admirably prevent the growth of the undesirable plant in non-crop area. Non- crop area Ru Lu, railway, meadow, utility line, the undesirable plant growth especially in the region there are trees.
The Herbicidal combinations of the present invention can also be used for following crop plants, and the crop plants are due to genetic engineering or breeding And it is resistant to one or more herbicides, due to genetic engineering or breeding to one or more pathogen, such as pathogenic Property fungi is resistant or resistant to insect infestations due to genetic engineering or breeding.Suitable is, for example, tolerance synthesis plant life The crops of long element, preferably corn, wheat, sunflower, rice, Canola, rape, soybean, cotton and sugarcane or due to passing through Genetic modification introduces Bt toxin the crops that gene is resistant to some insect infestations.
A kind of Herbicidal combinations are used to prevent the purposes in undesirable plant growth, the weeding group in useful crop Object is closed to be resistant to by the useful crop.
The Herbicidal combinations of the present invention are highly applicable to selectively prevent the life of the undesirable plant in useful crop It is long.The growth of undesirable plant in particularly preferred rice crop.
The Herbicidal combinations of the present invention are also used as defoliant, drier and total weed killer.
The present invention provides a kind of method for preventing undesirable plant growth, by the nitre sulphur grass of the Herbicidal combinations of the present invention Ketone, pyraclonil and 2 first, 4 chlorine collectively or individually are applied to undesirable plant or its growth place.
A kind of method for preventing undesirable plant growth, including：（i）Before undesirable plant germination（Before bud）； （ii）After undesirable plant germination（After bud）；Or（iii）（i）With（ii）When, by the present invention's of herbicidally effective amount Herbicidal combinations are applied to undesirable plant or its growth place.It is preferred that also to having germinateed before the undesirable plant germination Undesirable plant（Such as broad leaved weed, grassy weed, sedge or undesirable crop plants）It is administered, and It is unrelated with the growth period of the crop of sowing/plantation.
A kind of method for preventing undesirable plant growth, including undesirable plant or its growth place is made to have with weeding The Herbicidal combinations contact of the present invention of effect amount.
A kind of method for preventing undesirable plant growth includes the weeding of from the present invention to soil application herbicidally effective amount Composition is to prevent from being not intended to the germination of plant or growth.
The Herbicidal combinations of the present invention, which include a effective amount of mesotrione, pyraclonil, 2 first, 4 chlorine, has synergistic effect.When It can be observed to act synergistically jointly or when mesotrione, pyraclonil, 24 chlorine of first is almost administered simultaneously；When dividing in different times Not Shi Yong mesotrione, pyraclonil, 24 chlorine of first when, also observe that synergistic effect；It can also sequential application mesotrione, polybenzobisoxazole Applied before oxalic acid dinitrile, 2 first, 4 chlorine, such as first bud then bud after apply or first early stage bud after apply, then after mid-term or later stage bud Using.It is preferably common herein or mesotrione, pyraclonil, 2 first, 4 chlorine is almost administered simultaneously, and be particularly preferably co-administered.
If the Herbicidal combinations of the present invention are applied to soil surface before germination, weeds seedling is entirely prevented to send out Bud or weed growth are to cotyledon period, but then it just stops growing, and finally completely dead after two weeks to surrounding.
If the reactive compound to be applied to the green parts of plant after germination, growth equally can be after treatment Just drastically stop in the suitable short time, and growth period when the ruderal plant is maintained at administration time point or its in a timing Between after completely dead, competition that is relatively early in this way and constantly eliminating the weeds generation by being harmful to crop plants.It is right , also can be by Herbicidal combinations application in water in rice, then it is absorbed by soil, bud and root.
When mesotrione, pyraclonil, 2 first, 4 chlorine are co-administered, there is synergistic effect.Here, the work of the composition Property higher than application each herbicidal activity expection summation.Synergistic effect makes rate of application that can reduce, and the broad-leaved for preventing more wide range is miscellaneous Grass, grassy weed and sedge, herbicide effect work faster, the duration it is longer, by only once or several times applying Just there is preferably prevention to noxious plant and can widen using the phase.Dosage and nitre the sulphur grass used in the Herbicidal combinations Ketone, pyraclonil, the effective dose of 2 first, 4 chlorine are all adjustable to relatively low level, so that it is reduced to minimum to the effect of soil Degree.This causes the Herbicidal combinations of the present invention that can not only be applied to sensitive crop, also almost avoids underground water pollution.This Invention Herbicidal combinations so that rate of application significantly decreases needed for active component.
Above-mentioned characteristic and advantage are for control of weeds to keep agricultural/forestry/garden crop or greenery patches/meadow from not wishing The competitive plant of prestige, it is horizontal so as to ensure from the angle of quality and quantity and/or increase useful crop yield.With regard to the characteristic For, this Herbicidal combinations have significantly surmounted the state of the art of this field.
The present invention also provides a kind of method for preventing undesirable plant growth, including the Herbicidal combinations of the present invention are existed It is applied in the presence of other reproductive parts of the plant of useful crop, the seed of useful crop or useful crop.It is preferred that by the present invention's Herbicidal combinations are directly applied to the growth place of plant or plant before germinateing before useful crop is sowed or germinates or after planting.
The present invention also provides a kind of methods for preventing undesirable plant, preferably in useful crop plants, are particularly paddy Prevent undesirable plant in class crop, this method include will as Herbicidal combinations of the present invention active ingredient mesotrione, Pyraclonil, 2 first, 4 chlorine, such as collectively or individually it is applied to plant (such as undesirable plant, such as unifacial leaf or dicotyledonous Broad leaved weed, grassy weed, sedge or undesirable crop plants), seed (such as caryopsis, seed or asexual numerous Grow organ, such as stem tuber and the branch portion with bud) or be applied to the region of plant growth (such as the region of cultivation also can use Water covers).A kind of herbicide can before another herbicide, afterwards or concurrently be applied to plant, seed or plant life Long region (such as region of cultivation).
The Herbicidal combinations of the present invention can in a usual manner be applied by using technology well known to those skilled in the art. Suitable technology includes spraying, atomization, dusting, broadcasts sowing or pour.It is depended in a well-known manner using type desired Purpose；The technology is it is ensured that active component of the present invention may be most preferably distributed under any circumstance.
It, can be by spraying apparatus directed spraying Herbicidal combination if active component cannot be well tolerable by some crops Object so that they reach be grown in it is following when being not intended to the leaf of plant or exposed soil it is tactiosensible as few as possible Crops.
The method of the present invention is most preferably for undesirable plant or its growth place prevention plant growth area or will be used to plant Weeds in the region of plant.When being applied to plant growth area, amount of application should be enough to control weed growth but will not be right Crop generates serious permanent injury.
" undesirable plant " is understood to mean that all plants for being grown in the place for being not intended to its growth.These can For, for example, noxious plant (such as unifacial leaf or broadleaf weed, grassy weed, sedge or undesired crop are planted Object), including for example to some weeding active compounds (such as glyphosate, Glufosinate, atrazine, imidazolinone herbicide and Sulfonylurea) resistant those plants.
The present invention also provides a kind of Herbicidal combinations, active component is made of mesotrione, pyraclonil and 2 first, 4 chlorine, also Including filler and/or surfactant.In the Herbicidal combinations, 4 chlorine of the mesotrione, pyraclonil and 2 first it is total Amount accounts for Herbicidal combinations 1%-90% by weight, preferably preferably 5%-80%, 10%-80%, and more preferable 20%-80% is more excellent Select 30%-80%.
The total amount of 4 chlorine of the mesotrione, pyraclonil and 2 first can also account for the Herbicidal combinations by weight 1%、2%、3%、4%、5%、6%、7%、8%、9%、10%、11%、12%、13%、14%、15%、16%、17%、18%、19%、20%、21%、 22%、23%、24%、25%、26%、27%、28%、29%、30%、31%、32%、33%、34%、35%、36%、37%、38%、39%、40%、 41%、42%、43%、44%、45%、46%、47%、48%、49%、50%、52%、54%、56%、58%、60%、62%、64%、66%、68%、 70%th, 72%, 74%, 76%, 78%, 80%, 82%, 84%, 86%, 88% or 90%.
Specific point value between above-mentioned numerical value, as space is limited and for it is concise the considerations of, the present invention no longer exclusive list institute State the specific point value that scope includes.
The Herbicidal combinations of the present invention can be converted into conventional formulation, such as wettable powder, water-soluble granule, water-soluble liquid It is agent, missible oil, suspending agent, microcapsules, microemulsion, aqueous emulsion, suspended emulsion, microcapsule suspension-suspendinagent agent, water dispersible granules, ultralow Volume liquids, tablet, low capacity dispersible granule, pill or dry suspending agent.
According to the present invention, term " filler ", which refers to, can be combined with active component or combines to make it easier for be administered to pair As（Such as plant, crop or careless class）Natural or synthetic organic or inorganic compound.Therefore, the filler is preferably lazy Property, it is acceptable at least to should be agricultural.The filler can be solid or liquid.
Applicable solid carrier is：Such as phyteral powdery type（Such as soy meal, starch, grain dust, wood powder, bark powder, Sawdust, walnut shell powder, wheat bran, cellulose powder, coconut husk, the particle of corncob and tobacco stem extract residual after plant essence Slag etc.）, clay class（Such as kaolin, bentonite, acid china clay etc.）, talcum powder class, silica（Such as diatomite, silica sand, cloud Female, aqueous silicic acid, calcium silicates）, activated carbon, natural mineral matter class（Bentonite, silica gel, kaolin, float stone, attapulgite and boiling Stone etc.）, fire diatomite, sand, plastics medium etc.（Such as polyethylene, polypropylene, polyvinylidene chloride etc.）, potassium chloride, carbonic acid Chemical fertilizer, the clay fertilizer of the inorganic mineral powder of calcium, calcium phosphate etc., ammonium sulfate, ammonium phosphate, urea, ammonium chloride etc., these objects Matter can be used alone or two or more is mixed.
Applicable liquid-carrier can select in llowing group of materials, such as water, alcohol type（Such as methanol, ethyl alcohol, isopropyl Alcohol, butanol, ethylene glycol etc.）, ketone（Such as acetone, methyl ethyl ketone, isobutyrone, cyclohexanone etc.）, ethers（Such as second Ether, dioxanes, methylcellulose, tetrahydrofuran etc.）, aliphatic hydrocarbon class（Such as kerosene, mineral oil etc.）, aromatic series Hydrocarbon（Such as benzene,toluene,xylene, solvent naphtha, alkylnaphthalene, chlorinated aromatic hydrocarbons, chlorinated aliphatic hydrocarbon, chlorobenzene etc.）, halogen Change hydrocarbon, amides, sulfone class, dimethyl sulfoxide (DMSO), mineral and vegetable oil, animal oil etc..
Applicable surfactant have the emulsifier with ion or non-ionic nature, dispersant or wetting agent or these The mixture of surfactant.The suitable of these surfactants has fatty alcohol polyoxyethylene ether, polyxyethylated aryl Ether, polyoxyethylene higher fatty acid esters, polyoxyethylene alcohol or the phosphate of phenol, the aliphatic ester of polyalcohol, alkylaryl sodium sulfonate, Naphthalene sulfonic acid polymer, lignosulfonates, the dendritic copolymer of macromolecule comb shape, butyl naphthalene sulfonate, alkylaryl sulfonates, The polyacrylates such as sodium alkylsulfosuccinates, grease, fatty alcohol and ethylene oxide condensate, alkylnaphthalene sulfonate, protein Hydrolysate.Suitable oligosaccharide object or polymer, such as based on individual vinyl monomer, acrylic acid, polyoxyethylene or polyoxy third Alkene or its with for example（It is polynary）Alcohol or（It is polynary）The combination of amine.When in one kind in reactive compound and/or inert carrier One kind is not soluble in water and when applying in water, it is necessary to which there are surfactants.The ratio of surfactant is removed for the present invention's The 5%-40% of careless composition.
If appropriate, there may also be other addO-on therapies, such as protecting colloid, bonding for Herbicidal combinations of the invention Agent, adhesive, thickener, thixotropic agent, bleeding agent, stabilizer, screening agent, sequestering agent, complex-forming agents.In general, institute The active component stated can be combined with any solid or liquid additive conventionally used for preparation purpose.
The Herbicidal combinations of the present invention can by known way by the active component and following substance at least It is a kind of to be mixed：Liquid-carrier or solid carrier, emulsifier, dispersant, wetting agent and/or protecting colloid, adhesive, adhesive, Thickener, thixotropic agent, bleeding agent, stabilizer, screening agent, sequestering agent, complex-forming agents, water and other processing aids.
The Herbicidal combinations of the present invention can be formulated as such as single component by known method, if appropriate, with other work The mix preparation of property compound, additive and/or common dosage forms auxiliary agent, after then said composition is diluted with water in a usual manner Using；Or by the way that the independent each component prepared or partly individually prepared is diluted jointly to be formulated as a barrel mix formulation with water.Also The each component that can be individually prepared with separate administration or partly individually prepared.Also multi-section point can be divided to use the herbicide or weeding group Close object (sequential application), such as before sowing first/plantation pre-treatment or bud before apply, applied or early stage bud after followed by carrying out bud After apply, applied after then carrying out mid-term or later stage bud.It is preferably used in conjunction with herein or almost while using the composition Reactive compound is particularly preferably co-administered.
It, can be with it is anticipated that object selects method of administration with popular environment, such as blade face be impregnated with, sprays according to formulation properties Mist dusts, scatters and make choice.
Mesotrione, pyraclonil and 2 first, 4 chlorine can with itself, its dosage form or by further dilute by its system Standby type of service application, such as ready to use solution, suspending agent, lotion, pulvis, paste and granule.Usual manner can be used, such as By pouring, spraying, being atomized or broadcasting sowing come using them.
The Herbicidal combinations of the present invention can be applied in a usual manner, such as make carrier with water, and the volume of spraying mixture is about For 100 to 1000 liters/hectares.Low capacity or ultra-low volume technology or the form of fine granule can also be used to apply the present invention's Herbicidal combinations.
Example of formulations
4 chlorine sodium suspending agent of+10%+50% 2 first of mesotrione of 1 10% pyraclonil of embodiment
Pyraclonil 10%
Mesotrione 10%
2 first, 4 chlorine sodium 50%
N- sodium lauroyl glutamates 5%
Bentonite 1%
Propylene glycol 5%
Silicone 3%
Water complements to 100%
Active component and various auxiliary agents with water are mixed, disperseed through high speed shear, after sand mill is sanded, forms high dispersive, steady Suspending agent is made in fixed suspension system.
4 chlorine sodium wettable powder of+8%+10% 2 first of mesotrione of 2 4% pyraclonil of embodiment
Pyraclonil 4%
Mesotrione 8%
2 first, 4 chlorine sodium 10%
Sodium butylnaphthalenesulfonate 60%
Two polyoxyethylene lauryl ether phosphates 5%
White carbon 5%
Kaolin complements to 100%
By active component, various auxiliary agents and filler etc. by formula proportional components mix, after ultra-fine pulverizer disintegrating to get to 4 chlorine sodium wettable powder of+8%+10% 2 first of mesotrione of 4% pyraclonil.
4 chlorine sodium wettable powder of+5%+30% 2 first of mesotrione of 3 5% pyraclonil of embodiment
Pyraclonil 5%
Mesotrione 5%
2 first, 4 chlorine sodium 30%
Glycerine fatty acid polyoxyethylene ether 1%
Sodium lignin sulfonate 2%
White carbon supply is to 100%
By active component, various auxiliary agents and filler etc. by formula proportional components mix, after ultra-fine pulverizer disintegrating to get to 4 chlorine sodium wettable powder of+5%+30% 2 first of mesotrione of 5% pyraclonil.
4 chlorine sodium water dispersible granules of+5%+50% 2 first of mesotrione of 4 10% pyraclonil of embodiment
Pyraclonil 10%
Mesotrione 5%
2 first, 4 chlorine sodium 50%
Polyoxyethylene lauryl ether carboxylic acid sodium 4%
Lauryl sodium sulfate 5%
Ammonium sulfate 5%
Kaolin complements to 100%
Active component, dispersant, wetting agent, disintegrant and filler are uniformly mixed in the ratio of formula, by air-flow crushing into Wettable powder adds a certain amount of water mixing extruding and makes material ,+5% nitre sulphur of 10% pyraclonil grass is obtained after dry sieve 2 first of ketone+50%, 4 chlorine sodium water dispersible granules.
The 4 different monooctyl ester missible oil of chlorine of+5%2 first of embodiment+3% mesotrione of 5 2% pyraclonil
Pyraclonil 2%
Mesotrione 3%
The different monooctyl ester 5% of 2 first, 4 chlorine
Ethoxylated castor oil 5%
Calcium dodecyl benzene sulfonate 3%
SOLVESSOTM200 complement to 100%
Mentioned component is proportionally prepared, be uniformly mixing to obtain homogeneous phase to get to+3% mesotrione of 2% pyraclonil+ The different monooctyl ester missible oil of 5%2 first, 4 chlorine.
4 chlorine sodium wettable powder of+60% first of embodiment+2% mesotrione of 6 2% pyraclonil
Pyraclonil 2%
Mesotrione 2%
2 first, 4 chlorine sodium 60%
Lauryl sodium sulfate 6%
Sodium metnylene bis-naphthalene sulfonate 3%
White carbon 20%
Kaolin complements to 100%
Said components are mixed in proportion, and grinds, crush to get to 4 chlorine sodium of+60% first of+10% mesotrione of 2% pyraclonil Wettable powder.
4 chlorine sodium water dispersible granules of+3.2%+32% 2 first of mesotrione of 7 1.8% pyraclonil of embodiment
Pyraclonil 1.8%
Mesotrione 3.2%
2 first, 4 chlorine sodium 32%
MODIFIED LIGNOSULPHONATE 5%
Lauryl sodium sulfate 3%
Sodium chloride 1%
Kaolin complements to 100%
By pyraclonil, mesotrione, 2 first, 4 chlorine sodium active component, dispersant, wetting agent, disintegrant and filler by the ratio of formula Example is uniformly mixed, by air-flow crushing into wettable powder；It adds a certain amount of water mixing extruding and makes material, sieved through dry Afterwards to get to 4 chlorine sodium water dispersible granules of+3.2%+32% 2 first of mesotrione of 1.8% pyraclonil.
4 chlorine sodium aqueous emulsion of+3.2%+20% 2 first of mesotrione of 8 1.8% pyraclonil of embodiment
Oil phase：
Pyraclonil 1.8%
Mesotrione 3.2%
N-Methyl pyrrolidone 5%
Ethoxylated castor oil 3%
Water phase：
2 first, 4 chlorine sodium 20%
The sodium salt 2% of naphthalene sulfonic acids-formaldehyde condensation products of sulfonation
Water complements to 100%
Pyraclonil, mesotrione are dissolved in methyl oleate, ethoxylated castor oil is added in and obtains oil phase；It will according to formula 2 first, 4 chlorine sodium, sulfonation naphthalene sulfonic acids-formaldehyde condensation products sodium salt, water is uniformly mixed to obtain water phase；Oil phase is added under stiring Enter water mutually to get to 4 chlorine sodium aqueous emulsion of+3.2%+20% 2 first of mesotrione of 1.8% pyraclonil.
4 chlorine sodium suspending agent of+8%+8% 2 first of mesotrione of 9 8% pyraclonil of embodiment
Pyraclonil 8%
Mesotrione 8%
2 first, 4 chlorine sodium 8%
Alkyl dimethyl benzyl ammonium 5%
Trisiloxanes polyoxyethylene ether 5%
Polyvinyl alcohol 4%
Propylene glycol 5%
Silicone 3%
Water Complement to 100%
Active component and various auxiliary agents with water are mixed, disperseed through high speed shear, after sand mill is sanded, forms high dispersive, steady Suspending agent is made in fixed suspension system.
4 chlorine sodium coated granule of+4%+20% 2 first of mesotrione of 10 2% pyraclonil of embodiment
Pyraclonil 2%
Mesotrione 4%
2 first, 4 chlorine sodium 20%
Polyethylene glycol 3%
The silicic acid 1% of high degree of dispersion
Calcium carbonate complements to 100%
In a mixer, by levigate active component even spread to the carrier soaked by polyethylene glycol, can obtain by this method Obtain 4 chlorine sodium coated granule of+20%2 first of+4% mesotrione of 2% pyraclonil.
4 chlorine sodium of+15%+40% 2 first of mesotrione of 11 5% pyraclonil of embodiment squeezes out granule
Pyraclonil 5%
Mesotrione 15%
2 first, 4 chlorine sodium 40%
Sodium lignin sulfonate 4%
Carboxymethyl cellulose 2%
Kaolin complements to 100%
Active component is mixed and ground with auxiliary agent, mixture is soaked with water；The mixture is squeezed out, is then done in the air stream It is dry to squeeze out granule to get to 4 chlorine sodium of+15%+40% 2 first of mesotrione of 5% pyraclonil.
4 chlorine sodium microcapsule suspension-suspendinagent agent of+3%+60% 2 first of mesotrione of 12 1.5% pyraclonil of embodiment
Synperonic PE/64 3.5%
Citric acid 0.05%
Catalyst 0.1%
Water 5%
Mesotrione 3%
PAPI 0.77%
SOLVESSOTM200 4%
Synperonic PE/64 5%
Dispersant LFH 0.15%
Antifoaming agent 0.16%
Urea 3.5%
Pyraclonil 1.5%
2 first, 4 chlorine sodium 60%
Water complements to 100%
By PAPI, pyraclonil, SOLVESSOTM200 oil phases formed are added in the aqueous solution of the PE/64 containing Synperonic, Form emulsion；Then heat and keep the temperature added at 50 DEG C catalyst reaction 2 it is small when, the micro-capsule of pyraclonil is obtained after cooling Agent.
By Synperonic PE/64, dispersant LFH, antifoaming agent, urea, mesotrione, 2 first, 4 chlorine sodium and water in proportion It is uniformly mixed, and through being sanded, is prepared into the suspending agent of 4 chlorine sodium of mesotrione and 2 first.
Will obtained pyraclonil microcapsules add in 4 chlorine sodium of mesotrione and 2 first suspending agent in, stir evenly to get To 4 chlorine sodium microcapsule suspension-suspendinagent agent of+3%+60% 2 first of mesotrione of 1.5% pyraclonil.
4 chlorine sodium suspended emulsion of+10%+30% 2 first of mesotrione of 13 5% pyraclonil of embodiment
Pyraclonil 5%
Mesotrione 10%
2 first, 4 chlorine sodium 30%
SOLVESSOTM 200 5%
Ethoxylated castor oil 2%
Thermally coupled distillation columns 3%
MODIFIED LIGNOSULPHONATE 3%
Xanthans 1%
Bentonite 1%
Glycerine 5%
Water complements to 100%
Pyraclonil is dissolved in SOLVESSOTMIn 200, ethoxylated castor oil is added in, obtains the oil phase of pyraclonil.
By mesotrione, 2 first, 4 chlorine sodium, thermally coupled distillation columns, MODIFIED LIGNOSULPHONATE, xanthans, swollen Profit soil, glycerine and water mix in proportion, and through being sanded, are prepared into suspending agent.
Oil phase containing pyraclonil is added in the suspending agent containing 4 chlorine sodium of mesotrione and 2 first to get careless to 5% polybenzobisoxazole 4 chlorine sodium suspended emulsion of+10%+30% 2 first of mesotrione of nitrile.
The 4 different monooctyl ester oil-suspending agent of chlorine of+10%+30% 2 first of mesotrione of 14 5% pyraclonil of embodiment
Pyraclonil 5%
Mesotrione 10%
The different monooctyl ester 30% of 2 first, 4 chlorine
To methoxyl group fatty acyl amido benzene sulfonic acid sodium salt 5%
Sorbitan aliphatic ester 5%
Bentonite 1%
Soybean oil complements to 100%
The each components such as active component, dispersant, wetting agent and soybean oil are uniformly mixed according to the ratio of formula, it is ground and/ Or to get to the 4 different monooctyl ester oil-suspending agent of chlorine of+10%+30% 2 first of mesotrione of 5% pyraclonil after high speed shear.
4 chlorine sodium dry suspending agent of+32%2 first of embodiment+6% mesotrione of 15 2% pyraclonil
Pyraclonil 2%
Mesotrione 6%
2 first, 4 chlorine sodium 32%
Alkyl dimethyl benzyl ammonium 10%
Trisiloxanes polyoxyethylene ether 8%
Polyvinyl alcohol 4%
Propylene glycol 5%
Silicone 5%
Kaolin Complement to 100%
Active component and various auxiliary agents with water are mixed, disperseed through high speed shear, after sand mill is sanded, forms high dispersive, steady Suspending agent is made in fixed suspension system, and obtained suspension is obtained the dry suspending agent of the present invention by fluidized bed drying.
4 chlorine sodium water dispersible granules of+8%+40% 2 first of mesotrione of 16 8% pyraclonil of embodiment
Pyraclonil 8%
Mesotrione 8%
2 first, 4 chlorine sodium 40%
Polyoxyethylene lauryl ether carboxylic acid sodium 4%
Lauryl sodium sulfate 5%
Ammonium sulfate 5%
Kaolin complements to 100%
Active component, dispersant, wetting agent, disintegrant and filler are uniformly mixed in the ratio of formula, by air-flow crushing into Wettable powder adds a certain amount of water mixing extruding and makes material ,+8% mesotrione of 8% pyraclonil is obtained after dry sieve 4 chlorine sodium water dispersible granules of+32% 2 first.
4 chlorine sodium ultra low volume liquids of+0.5%+15% 2 first of mesotrione of 170.5% pyraclonil of embodiment
Pyraclonil 0.5%
Mesotrione 0.5%
2 first, 4 chlorine sodium 15%
N-Methyl pyrrolidone 10%
Ethoxylated castor oil 5%
Mentioned component is proportionally prepared, is uniformly mixing to obtain homogeneous phase to get careless to+0.5% nitre sulphur of 0.5% pyraclonil 2 first of ketone+15%, 4 chlorine sodium ultra low volume liquids.
4 chlorine sodium of+10%+80% 2 first of mesotrione of 18 10% pyraclonil of embodiment
Pyraclonil 10%
Mesotrione 10%
2 first, 4 chlorine sodium 80%
More than component is uniformly mixed.
Proportioning in above example is weight per distribution ratio.
Following embodiment illustrates the present invention
Before seedling is tested：
Under greenhouse experiment, the seed of plant is placed in the alms bowl equipped with dauk and is covered with soil.Use standard soil As cultivation matrix.In the before seedling stage, herbicide individually or is as a mixture administered to soil surface.It, will after processing Alms bowl is placed in greenhouse and is held under the excellent growing conditions suitable for weeds.By compared with untreated control group, to 4 weeks The emergence damage after plant damage or test plants emergence after test period carries out visual assessment.Test result shows, this hair Bright Synergistic herbicide compositions show broad-spectrum weeding activity of weeding before very good emergence.Data are also shown, suitable Under low dosage, the effect of Synergistic herbicide compositions of the invention has been more than the desired value according to Colby, shows apparent synergy and makees With.
Greenhouse experiment is：Temperature daytime is 25oC is at night 20oC.Temperature in air is between 60 to 80%.14 it is small when Light application time.
According to constant weight percentage reagent preparation：1st, pyraclonil；2nd, mesotrione；3rd, 2 first, 4 chlorine sodium；3rd, polybenzobisoxazole grass Nitrile+mesotrione；4th, 4 chlorine sodium of+2 first of pyraclonil；5th, 4 chlorine sodium of+2 first of mesotrione；6th ,+2 first 4 of pyraclonil+mesotrione Chlorine sodium；Above-mentioned each reagent is diluted with water afterwards, obtains medicament dilution.
Investigation method：
Evaluation to the mixed synergistic effect for applying middle display of three kinds of herbicidal active components is to be based on “CalculationSynergistic and Antagonistic Response of Herbicide Combinations” What Colby ' the s methods described in (Weeds 15/1 (1967), S.R.Colby) determined.
E0=A×B×C/ (100×（N-1））
N is 3；
A is the survival rate of weeds when using the reactive compound A that dosage is mg/ha or concentration is mppm；It is expressed as accounting for not Handle the percentage of control
B is the survival rate of weeds when using the reactive compound B that dosage is ng/ha or concentration is nppm;It is expressed as accounting for not Handle the percentage of control；
C is the survival rate of weeds when using the reactive compound C that dosage is hg/ha or concentration is hppm；It is expressed as accounting for not Handle the percentage of control；
E0It when using dosage is m to be, n, h g/ha or concentration are m, reason when reactive compound A, B and the C of n, hppm By weeds survival rate；
If the weeds survival rate of actual observation（E）Less than theoretical weeds survival rate（E0）, then said composition surpasses adduction, that is, has There is synergistic effect.
For representing that the abbreviation of various plant varieties just has following meaning：
ORYSW=rice
CYPDI=difformed galingale herb
ECHGH=barnyard grass
MOOVA=Monochoria vaginalis
SCPJU=firefly Lin
ABUTH=piemarker
VERPE=Veronica persica
SAGPY=short arrowhead
Result of the test shows, after handling four weeks, by difformed galingale herb, barnyard grass, Monochoria vaginalis, firefly Lin, piemarker, Veronica persica, The preventive effect observation of short arrowhead, Herbicidal combinations of the invention show anti-weeds activity, and well active with single compound It compares, shows apparent synergistic effect.
Moreover, by the observation to rice, Herbicidal combinations of the invention do not lose the selectivity to rice crops, to rice crops Safety.
Evaluation to activity of weeding after the bud of Herbicidal combinations in greenhouse
Under greenhouse experiment, the seed of required test plants species is planted in seedling alms bowl.Using standard soil as cultivation base Matter.When plant reaches the 1-3 leaf phases, herbicide individually or is in combination handled into blade.Each processing is repeated 4 times.
According to constant weight percentage reagent preparation：1st, pyraclonil；2nd, mesotrione；3rd, 2 first, 4 chlorine sodium；3rd, polybenzobisoxazole grass Nitrile+mesotrione；4th, 4 chlorine sodium of+2 first of pyraclonil；5th, 4 chlorine sodium of+2 first of mesotrione；6th ,+2 first 4 of pyraclonil+mesotrione Chlorine sodium；Above-mentioned each reagent is diluted with water afterwards, obtains medicament dilution.
Investigation method：
Evaluation to the mixed synergistic effect for applying middle display of three kinds of herbicidal active components is to be based on “CalculationSynergistic and Antagonistic Response of Herbicide Combinations” What Colby ' the s methods described in (Weeds 15/1 (1967), S.R.Colby) determined.
E0=A×B×C/ (100×（N-1））
N is 3；
A is the survival rate of weeds when using the reactive compound A that dosage is mg/ha or concentration is mppm；It is expressed as accounting for not Handle the percentage of control
B is the survival rate of weeds when using the reactive compound B that dosage is ng/ha or concentration is nppm;It is expressed as accounting for not Handle the percentage of control；
C is the survival rate of weeds when using the reactive compound C that dosage is hg/ha or concentration is hppm；It is expressed as accounting for not Handle the percentage of control；
E0It when using dosage is m to be, n, h g/ha or concentration are m, reason when reactive compound A, B and the C of n, hppm By weeds survival rate；
If the weeds survival rate of actual observation（E）Less than theoretical weeds survival rate（E0）, then said composition surpasses adduction, that is, has There is synergistic effect.
Abbreviation for representing various plant varieties has following meaning：
ORYSW=rice
CYPDI=difformed galingale herb
ECHGH=barnyard grass
MOOVA=Monochoria vaginalis
SCPJU=firefly Lin
ABUTH=piemarker
VERPE=Veronica persica
SAGPY=short arrowhead
1 Herbicidal combinations of the present invention of table are to difformed galingale herb（CYPDI）Preventive effect
2 Herbicidal combinations of the present invention of table are to barnyard grass（ECHGH）Preventive effect
3 Herbicidal combinations of the present invention of table are to piemarker（ABUTH ）Preventive effect
1,2,3 data of table show that Herbicidal combinations of the invention carry out bud post processing to difformed galingale herb, barnyard grass, piemarker.Handle surrounding Afterwards, Herbicidal combinations of the invention show anti-weeds activity, and compared with single compound activity, display is apparent well Synergistic effect.
It is observed by the preventive effect to Monochoria vaginalis, the firefly leaves of pulse plants, Veronica persica, short arrowhead, passes through the Herbicidal combination of the present invention Object carries out bud post processing, and after handling four weeks, Herbicidal combinations of the invention shows that anti-weeds are active well, and with it is individualized It closes object activity to compare, shows apparent synergistic effect.
Moreover, by the observation to rice crops, Herbicidal combinations of the invention do not lose the selectivity to rice crops, to rice Crop safety.

Claims (16)

1. a kind of Herbicidal combinations, which is characterized in that its active component is made of mesotrione, pyraclonil, 2 first, 4 chlorine, described Mesotrione, pyraclonil, the weight proportion of 2 first, 4 chlorine are 1-10:1-15:1-30 is preferably 1-10:1-15:1-25, it is more excellent Select 1-10:1-15:1-20；More preferable 1-10:1-10:1-15；More preferred 1-5:1-5:1-15；More preferred 1-5:1-5:1- 10。
2. Herbicidal combinations according to claim 1, which is characterized in that the Herbicidal combinations further include filler and/ Or surfactant.
3. Herbicidal combinations according to claim 1, which is characterized in that the Herbicidal combinations, dosage form are wettable Pulvis, water-soluble granule, water-soluble liquor, missible oil, suspending agent, microcapsules, microemulsion, aqueous emulsion, suspended emulsion, micro-capsule hang Floating-suspending agent, water dispersible granules, ultra low volume liquids, tablet, ultra-low volume dispersible granule, pill or dry suspending agent.
4. Herbicidal combinations according to claim 1, which is characterized in that in the Herbicidal combinations, the nitre sulphur Humulone, pyraclonil, the total amount of 2 first, 4 chlorine account for the Herbicidal combinations 1%-90% by weight, preferably 5%-80%, further preferably 10%-80%, more preferable 20%-80%, more preferable 30%-80%.
5. purposes of the Herbicidal combinations according to claim 1 in undesirable plant growth is prevented.
6. Herbicidal combinations according to claim 1 are in prevention unifacial leaf and broadleaf weed undesirable plant growth Purposes.
7. Herbicidal combinations according to claim 1 are in prevention barnyard grass (Echinochloa crusgalli (L.) Beauv.), moleplant seed（（ Leptochloa Beauv. ）, lady's-grass (Digitaria spp.), chickweed (Stellaria Media), arrowhead (Sagittaria sagittifolia), Amaranthus retroflexus (Amaranthus retroflexus), volume stem smartweed (Fallopia (ex Polygonum) Convolvulus), piemarker (Abuthilon theophrasti), rhizoma alismatis (Oriental Waterplantain Rhizome), Monochoria vaginalis (Duck tongue grass), Monochoria korsakowii (Monochoria Korsakowii), Procumbent Falsepimpernel (Lindernia procumbens), black nightshade (Solanum nigrum L.), firefly Lin (Scirpus Juncoides Roxb), difformed galingale herb (Cyperus difformis L.), lamb's-quarters (Chenopodium alum L.), wild oat (Avena fatua L.), Veronica persica（ Veronica persica）The purposes of undesirable plant growth.
8. Herbicidal combinations described in claim 1 are made in prevention rape, beet, soybean, cotton, rice, barley, wheat, corn The purposes of undesirable plant growth in object.
9. the purposes of Herbicidal combinations described in claim 1 undesirable plant growth in rice crops are prevented.
A kind of 10. method for preventing undesirable plant growth, which is characterized in that the described method includes：（i）In undesirable plant Before object germination；（ii）After undesirable plant germination；Or（iii）（i）With（ii）When, it will be described in claim 1 Herbicidal combinations are applied to undesirable plant or its growth place.
A kind of 11. method for preventing undesirable plant growth, which is characterized in that by Herbicidal combinations described in claim 1 Active component mesotrione, pyraclonil, 2 first, 4 chlorine collectively or individually be applied to undesirable plant or its growth place.
A kind of 12. method for preventing undesirable plant growth, which is characterized in that by Herbicidal combinations described in claim 1 It is applied in the presence of the seed of plant, useful crop or other reproductive parts of useful crop in useful crop.
13. according to the method for claim 12, which is characterized in that by Herbicidal combinations described in claim 1 useful Plant or plant growth site are directly applied to before germinateing before crop is sowed or germinates or after planting.
14. according to the method for claim 12, which is characterized in that the useful crop is rice.
A kind of 15. method for preventing undesirable plant growth, which is characterized in that including making undesirable plant or its growth field Contacted with the Herbicidal combinations described in claim 1 of herbicidally effective amount.
A kind of 16. method for preventing undesirable plant growth, which is characterized in that including applying herbicidally effective amount into soil Herbicidal combinations described in claim 1 are to prevent the germination of undesirable plant or growth.
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Application publication date: 20180525