CN116762814A - Ternary weeding composition containing ciclopirox and application thereof - Google Patents
Ternary weeding composition containing ciclopirox and application thereof Download PDFInfo
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- CN116762814A CN116762814A CN202210228362.0A CN202210228362A CN116762814A CN 116762814 A CN116762814 A CN 116762814A CN 202210228362 A CN202210228362 A CN 202210228362A CN 116762814 A CN116762814 A CN 116762814A
- Authority
- CN
- China
- Prior art keywords
- herbicidal composition
- diflufenican
- ciclopirox
- weeds
- amount
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 57
- 238000009333 weeding Methods 0.000 title claims abstract description 15
- 229960003749 ciclopirox Drugs 0.000 title claims abstract description 14
- SCKYRAXSEDYPSA-UHFFFAOYSA-N ciclopirox Chemical compound ON1C(=O)C=C(C)C=C1C1CCCCC1 SCKYRAXSEDYPSA-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 241000196324 Embryophyta Species 0.000 claims abstract description 40
- 239000005507 Diflufenican Substances 0.000 claims abstract description 16
- WYEHFWKAOXOVJD-UHFFFAOYSA-N diflufenican Chemical compound FC1=CC(F)=CC=C1NC(=O)C1=CC=CN=C1OC1=CC=CC(C(F)(F)F)=C1 WYEHFWKAOXOVJD-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000002363 herbicidal effect Effects 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 12
- -1 ciclopirox Chemical compound 0.000 claims description 9
- 239000004480 active ingredient Substances 0.000 claims description 5
- 239000004094 surface-active agent Substances 0.000 claims description 5
- 239000004562 water dispersible granule Substances 0.000 claims description 5
- 239000004563 wettable powder Substances 0.000 claims description 5
- MCNOFYBITGAAGM-UHFFFAOYSA-N 2,2-dichloro-1-[5-(furan-2-yl)-2,2-dimethyl-1,3-oxazolidin-3-yl]ethanone Chemical compound C1N(C(=O)C(Cl)Cl)C(C)(C)OC1C1=CC=CO1 MCNOFYBITGAAGM-UHFFFAOYSA-N 0.000 claims description 3
- 239000002671 adjuvant Substances 0.000 claims description 3
- 239000000969 carrier Substances 0.000 claims description 3
- OAWUUPVZMNKZRY-UHFFFAOYSA-N cyprosulfamide Chemical compound COC1=CC=CC=C1C(=O)NS(=O)(=O)C1=CC=C(C(=O)NC2CC2)C=C1 OAWUUPVZMNKZRY-UHFFFAOYSA-N 0.000 claims description 3
- 239000000839 emulsion Substances 0.000 claims description 3
- COYBRKAVBMYYSF-UHFFFAOYSA-N heptan-2-yl [(5-chloroquinolin-8-yl)oxy]acetate Chemical group C1=CN=C2C(OCC(=O)OC(C)CCCCC)=CC=C(Cl)C2=C1 COYBRKAVBMYYSF-UHFFFAOYSA-N 0.000 claims description 3
- 239000005980 Gibberellic acid Substances 0.000 claims description 2
- IHHMUBRVTJMLQO-UHFFFAOYSA-N Pyraclonil Chemical compound C#CCN(C)C1=C(C#N)C=NN1C1=NN(CCCC2)C2=C1Cl IHHMUBRVTJMLQO-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 239000007900 aqueous suspension Substances 0.000 claims description 2
- 239000004495 emulsifiable concentrate Substances 0.000 claims description 2
- 238000009472 formulation Methods 0.000 claims description 2
- IXORZMNAPKEEDV-UHFFFAOYSA-N gibberellic acid GA3 Natural products OC(=O)C1C2(C3)CC(=C)C3(O)CCC2C2(C=CC3O)C1C3(C)C(=O)O2 IXORZMNAPKEEDV-UHFFFAOYSA-N 0.000 claims description 2
- IXORZMNAPKEEDV-OBDJNFEBSA-N gibberellin A3 Chemical compound C([C@@]1(O)C(=C)C[C@@]2(C1)[C@H]1C(O)=O)C[C@H]2[C@]2(C=C[C@@H]3O)[C@H]1[C@]3(C)C(=O)O2 IXORZMNAPKEEDV-OBDJNFEBSA-N 0.000 claims description 2
- JCHMGYRXQDASJE-UHFFFAOYSA-N metcamifen Chemical compound C1=CC(NC(=O)NC)=CC=C1S(=O)(=O)NC(=O)C1=CC=CC=C1OC JCHMGYRXQDASJE-UHFFFAOYSA-N 0.000 claims description 2
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- KPUREKXXPHOJQT-UHFFFAOYSA-N mesotrione Chemical compound [O-][N+](=O)C1=CC(S(=O)(=O)C)=CC=C1C(=O)C1C(=O)CCCC1=O KPUREKXXPHOJQT-UHFFFAOYSA-N 0.000 claims 2
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- 230000002147 killing effect Effects 0.000 abstract description 4
- 238000001228 spectrum Methods 0.000 abstract description 4
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- 235000011305 Capsella bursa pastoris Nutrition 0.000 abstract description 3
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- 240000005702 Galium aparine Species 0.000 abstract description 3
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- 235000013418 Myrtus communis Nutrition 0.000 abstract description 3
- 241001234610 Rapistrum rugosum Species 0.000 abstract description 3
- 229960004375 ciclopirox olamine Drugs 0.000 abstract description 3
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- 239000000463 material Substances 0.000 description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 239000004009 herbicide Substances 0.000 description 9
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- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
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- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
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- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 2
- IGMNYECMUMZDDF-UHFFFAOYSA-N homogentisic acid Chemical compound OC(=O)CC1=CC(O)=CC=C1O IGMNYECMUMZDDF-UHFFFAOYSA-N 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
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- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical class C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 2
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- WHOZNOZYMBRCBL-OUKQBFOZSA-N (2E)-2-Tetradecenal Chemical class CCCCCCCCCCC\C=C\C=O WHOZNOZYMBRCBL-OUKQBFOZSA-N 0.000 description 1
- FKKAGFLIPSSCHT-UHFFFAOYSA-N 1-dodecoxydodecane;sulfuric acid Chemical class OS(O)(=O)=O.CCCCCCCCCCCCOCCCCCCCCCCCC FKKAGFLIPSSCHT-UHFFFAOYSA-N 0.000 description 1
- LWEAHXKXKDCSIE-UHFFFAOYSA-M 2,3-di(propan-2-yl)naphthalene-1-sulfonate Chemical compound C1=CC=C2C(S([O-])(=O)=O)=C(C(C)C)C(C(C)C)=CC2=C1 LWEAHXKXKDCSIE-UHFFFAOYSA-M 0.000 description 1
- DMAXMXPDVWTIRV-UHFFFAOYSA-N 2-(2-phenylethyl)phenol Chemical compound OC1=CC=CC=C1CCC1=CC=CC=C1 DMAXMXPDVWTIRV-UHFFFAOYSA-N 0.000 description 1
- NFAOATPOYUWEHM-UHFFFAOYSA-N 2-(6-methylheptyl)phenol Chemical class CC(C)CCCCCC1=CC=CC=C1O NFAOATPOYUWEHM-UHFFFAOYSA-N 0.000 description 1
- KKADPXVIOXHVKN-UHFFFAOYSA-N 4-hydroxyphenylpyruvic acid Chemical compound OC(=O)C(=O)CC1=CC=C(O)C=C1 KKADPXVIOXHVKN-UHFFFAOYSA-N 0.000 description 1
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- ZRVUJXDFFKFLMG-UHFFFAOYSA-N Meloxicam Chemical compound OC=1C2=CC=CC=C2S(=O)(=O)N(C)C=1C(=O)NC1=NC=C(C)S1 ZRVUJXDFFKFLMG-UHFFFAOYSA-N 0.000 description 1
- MIFOMMKAVSCNKQ-HWIUFGAZSA-N Metaflumizone Chemical compound C1=CC(OC(F)(F)F)=CC=C1NC(=O)N\N=C(C=1C=C(C=CC=1)C(F)(F)F)\CC1=CC=C(C#N)C=C1 MIFOMMKAVSCNKQ-HWIUFGAZSA-N 0.000 description 1
- 239000005914 Metaflumizone Substances 0.000 description 1
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- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- FKUYMLZIRPABFK-UHFFFAOYSA-N Plastoquinone 9 Natural products CC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCC1=CC(=O)C(C)=C(C)C1=O FKUYMLZIRPABFK-UHFFFAOYSA-N 0.000 description 1
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- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical class OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 1
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- GVJHHUAWPYXKBD-UHFFFAOYSA-N d-alpha-tocopherol Natural products OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 1
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- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 description 1
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Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention belongs to the field of pesticides, and particularly relates to a ternary weeding composition containing ciclopirox and application thereof. The ternary weeding composition comprises an effective weeding amount of ciclopirox olamine,
Description
Technical Field
The invention belongs to the field of pesticides, and particularly relates to a ternary weeding composition containing ciclopirox and application thereof.
Background
Chemical weeding is the most economical and effective means in farmland weed control, but long-term continuous high-dosage chemical herbicide with single variety or single action mode is easy to cause problems of weed resistance, resistance evolution and the like.
The ciclopirox can inhibit the activity of HPPD to block the conversion of p-hydroxyphenylpyruvic acid into homogentisate, so that the tocopherol and plastoquinone can not be normally synthesized, the synthesis of carotenoid in a target body is influenced, and the leaves are whitened.
The reasonable compounding or compounding of the herbicide compound has the advantages of expanding the weed spectrum, improving the preventing and killing effect, delaying the occurrence and development of weed resistance and drug resistance, and the like, and is one of the most effective methods for solving the problems. Therefore, there is a need in the art to develop herbicidal compositions that are highly safe, broad-spectrum, synergistic and resistant to weeds.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a ternary weeding composition containing ciclopirox and application thereof. The composition can effectively prevent and remove weed problems such as ryegrass, myrtle, shepherd's purse, wild rape, cleavers, cowry and the like, and has the characteristics of expanding weed killing spectrum, reducing application amount, generating synergistic effect, solving resistant weeds and the like.
A ternary herbicide composition containing ciclopirox, which comprises effective dose of ciclopirox, active component,And diflufenican.
Wherein, the weeding composition contains cyclofluroxypyr,The weight ratio of diflufenican to diflufenican is 1-100:1-200:1-100, preferably 5-80:10-180:5-80, more preferably 10-60:30-160:10-70, and even more preferably 12-48:37.5-150:15-60.
The weeding composition contains cyclofluroxypyr,And diflufenican in an amount of 1-95% by mass, preferably 10-80% by mass of the total amount.
The herbicidal composition further comprises conventional adjuvants including carriers and/or surfactants.
The term "carrier" as used herein means an organic or inorganic, natural or synthetic substance. They facilitate the application of the active ingredient, which carriers are generally inert and must be agriculturally acceptable, in particular by the treated plants. The carrier may be solid, such as clay, natural or synthetic silicate, silica, resin, wax, solid fertilizer, etc.; or liquid, such as water, alcohols, ketones, petroleum fractions, aromatic or waxy hydrocarbons, chlorinated hydrocarbons, liquefied gases, and the like.
Surfactants may include emulsifiers, dispersants or wetting agents, which may be ionic or nonionic. Examples which may be mentioned are salts of polyacrylic acid, lignosulfonates, salts of phenolsulfonic acid or naphthalenesulfonic acid, polymers of ethylene oxide with aliphatic alcohols or with aliphatic amines with substituted phenols, in particular alkylphenols or arylphenols, sulfosuccinates, taurine derivatives, in particular taurates, and phosphates of alcohols or of polyethylated phenols, alkylsulfonates, alkylaryl sulfonates, alkyl sulfates, lauryl ether sulfates, fatty alcohol sulfates, and also sulfated hexadecyl-, heptadeca-and octadecanols and sulfated fatty alcohol glycol ethers, furthermore condensates of naphthalene or naphthalenesulfonic acid with phenol and formaldehyde, polyoxyethylene octylphenyl ether, ethoxylated isooctylphenols, octylphenols or nonylphenols, alkylphenyl polyglycol ethers, tributylphenyl polyglycol ethers, tristearylphenyl polyglycol ethers, alkylaryl polyether alcohols, alcohol and fatty alcohol/ethylene oxide condensates, ethoxylated castor oil, polyoxyethylene alkyl ethers, ethoxylated polyoxypropylene, lauryl alcohol polyglycol ethers, sorbitol esters, lignin sulfite waste solutions, and also proteins, polysaccharides (e.g. methylcellulose), polyvinyl alcohol, hydrophobically modified polyvinyl pyrrolidone, polyvinyl alcohol carboxylate, polyvinyl pyrrolidone, and copolymers thereof. At least one surfactant is required to be present to facilitate the dispersion of the active ingredients in water and to enable them to be applied correctly to the plants.
The above-described compositions may also contain various other components such as protective colloids, binders, thickeners, thixotropic agents, penetrating agents, stabilizers, chelating agents, dyes, colorants and polymers.
The herbicidal composition further comprises at least one safener, preferably one or more of bisbenzoxazole acid (CAS: 163520-33-0), cyprosulfamide (CAS: 221667-31-8), pyraclonil (CAS: 135590-91-9), cloquintocet-mexyl (CAS: 99607-70-2), gibberellic acid (CAS: 7-06-5), furilazole (CAS: 121776-33-8), metacam (CAS: 129531-12-0).
The compositions of the present invention may be diluted by the user prior to use or used directly. The preparation can be prepared by common processing method, namely, mixing the active substance with liquid solvent or solid carrier, and adding one or more surfactants such as dispersing agent, stabilizer, wetting agent, adhesive, defoamer, etc.
The specific preparation of the weeding composition is dispersible oil suspending agent, water suspending agent, suspending emulsion, wettable powder, emulsifiable concentrate, water dispersible granule (dry suspending agent), water emulsion and microemulsion.
Briefly, the compositions of the present invention can be mixed with solid and liquid additives conventionally used in prior art formulations. The amount of the active ingredient used varies with the external conditions such as temperature, humidity, the nature of the herbicide used, and the like.
In addition, the compositions of the invention can be applied by spraying onto the foliage of the plants to be treated, i.e. onto weeds, in particular onto surfaces which are infested or susceptible to infestation by weeds.
Further, the present invention also provides a use of the herbicidal composition for controlling weeds, preferably, for selectively controlling weeds in crops of useful plants; and a method of controlling weed growth comprising applying the herbicidal composition to the area of weed growth.
When the herbicidal composition of the present invention is applied, unexpected synergistic effects are obtained, and herbicidal activity is more remarkable than the sum of the expected activities using individual herbicides, and the activities of the individual herbicides or any two of them in combination. The synergistic effect is manifested by a reduced application rate, a broader weed control spectrum, a faster and more durable herbicidal action, which are desirable in the practice of weed control. These new compositions are significantly superior to existing herbicides in terms of the characteristics described, achieving reduced use and being more environmentally friendly.
The synergistic weeding composition provided by 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 disclosed by the invention is low in cost and convenient to use, and has great economic and social benefits in popularization and application.
Detailed Description
The following examples are not intended to limit the invention but are merely illustrative of how the invention may be practiced. For certain weeds, these examples showed particularly significant effectiveness. Examples are as follows:
a) Examples
Example 1: cyclopyralid +Aqueous suspension of + diflufenican (6 +20+ 5)
6% of ciclopirox olamine +20%+5% diflufenican +4% carboxylate dispersant +2% phenethyl phenol polyoxyethylene ether phosphate triethanolamine salt +2% block polyether dispersant +0.18% xanthan gum +2.0% magnesium aluminum silicate +0.1% defoamer +3% ethylene glycol + water
Examples2: cyclopyralid ++diflufenican (6+20+5) dispersible oil suspension
6% of ciclopirox olamine +20%The composition is prepared from (by weight) 5% of diflufenican, (5% of calcium dodecyl benzene sulfonate, (9% of fatty alcohol polyoxyethylene ether), (6% of castor oil oxyvinyl ether), (2% of oil-soluble polycarboxylate dispersant), (0.6% of organic bentonite), (0.5% of fumed silica), (10% of soybean oil and methyl oleate)
Example 3: cyclopyralid ++diflufenican (12+40+10) wettable powder
12% of ciclopirox and 40%The composition is prepared from (by weight) metazachlor +10% and fumed silica +10% and sodium dodecyl sulfate +4% and polycarboxylate dispersant +3% and sodium lignin sulfonate +2% and diatomite
Example 4: cyclopyralid +Water dispersible granule of metaflumizone (12+40+10)
12% of ciclopirox and 40%+10% diflufenican +8% fumed silica +4% nekal +8% carboxylate dispersant +2% sodium lignosulfonate +1% polyvinylpyrrolidone + kaolin make up
The water suspending agent processing equipment comprises: mixing kettle, colloid mill, sand mill, shearing machine, etc.
The processing process of the water suspending agent comprises the following steps: all materials are put into a mixing kettle, stirred and mixed, then the materials are subjected to a colloid mill, and finally enter a sand mill for three-stage sand milling, finally the materials are uniformly sheared in a shearing machine, and after the materials are tested to be qualified, the materials are transferred to a storage tank for filling.
The dispersible oil suspending agent processing equipment comprises: mixing kettle, colloid mill, sand mill, shearing machine, etc.
The processing process of the dispersible oil suspending agent comprises the following steps: all materials are put into a mixing kettle, stirred and mixed, then the materials are subjected to a colloid mill, and finally enter a sand mill for three-stage sand milling, finally the materials are uniformly sheared in a shearing machine, and after the materials are tested to be qualified, the materials are transferred to a storage tank for filling.
The wettable powder processing equipment comprises: mechanical pulverizer and jet pulverizer.
The processing process of the wettable powder comprises the following steps: all materials such as raw materials, auxiliary agents and the like are put into a mechanical pulverizer, then are passed through an air flow pulverizer, and are sampled and tested to be qualified for standby.
Above-mentioned water dispersible granule processing equipment: jet mill, coulter mixer, basket granulator, drying oven, sieving machine, etc.
The processing process of the water dispersible granule comprises the following steps: mixing the materials uniformly, crushing by air flow, adding water, kneading and granulating, drying, and finally screening to obtain the finished product.
B) Efficacy test:
1) Test method
Active ingredientReference patent US1105357 for synthesis 1 H NMR(500MHz,DMSO-d 6 ) Delta 7.81 (d, j=2.0 hz, 1H), 7.48-7.55 (m, 1H), 7.41 (d, j=8.5 hz, 1H), 4.72 (s, 2H), 4.07 (s, 2H), 1.16 (s, 6H); others are purchased from reagent companies or synthesized according to known methods. The raw materials are all diluted by using acetone as solvent and 0.1% of emulsifier Tween-80 aqueous solution, and the diluted materials are diluted at present.
Culturing weeds by a potting method, when the weeds are in a 1-3 leaf period, uniformly spraying by adopting stem and leaf spraying, wherein the spraying amount is 450 kg/hectare, and transferring the weeds into a greenhouse for conventional culture for 21 days after treatment.
2) Data investigation and statistical analysis
The entire seedlings of surviving weeds were cut off along the soil surface with a blade by an absolute number survey method, and the fresh weight of weeds was weighed with an analytical balance. For weeds that have died, the fresh weight is zero.
And (3) evaluating the combined action type of any two and three mixed weeds by using a Colby method.
And (5) shearing green tissues on each treatment ground at 15d, weighing by adopting an electronic balance, and calculating the actual survival rate: e (%) = (fresh weed weight in treated area/fresh weed weight in control area) ×100
The theoretical weed survival rate calculation formula is: e0 (%) =x×y/100 (binary mixture)
Wherein X represents the survival rate of A at P, Y represents the survival rate of B at Q, E0 represents the theoretical survival rate of A+B at (P+Q), and E represents the actual survival rate of each treatment.
E0(％)＝X×Y×Z×…×N/100 (n-1) (ternary and higher mixing use)
Wherein X, Y, Z, N respectively represents the actual survival rate of n single agents, and n is the number of the compound herbicide varieties.
When E0-E >10%, it is shown that a synergistic effect is produced; antagonism is indicated when E0-E < -10%; when E0-E is between.+ -. 10%, this indicates that an additive effect is produced.
Table 1A, B evaluation of actual control and Co-action of Lolium multiflorum by mixing with C (Colby method)
Note that: a is ciclopirox and B isC is diflufenican
E (A): measured fresh weight survival of component A treatment at given dose
E (B): measured fresh weight survival of component B treatment at given dose
E (C): measured fresh weight survival of component C treatment at given dose
E (a+b): measured fresh weight survival of binary blends of component A and component B at a given dose
E (a+c): measured fresh weight survival of binary blends of component A and component C at a given dose
E (b+c): measured fresh weight survival of binary blends of component B and component C at a given dose
E (a+b+c): measured fresh weight survival of ternary blends of component A, B, C at a given dose
E 0 (a+b+c): theoretical fresh weight survival rate of ternary blend of component A, B, C at given dose
E 0 ((A+B) +C): theoretical fresh weight survival of component A, B as a whole binary blend with component C at a given dose
E 0 ((A+C) +B): theoretical fresh weight survival of component A, C as a whole binary blend with component B at a given dose
E 0 (A+ (B+C)): theoretical fresh weight survival of component B, C as a whole binary blend with component A at a given dose
C) Demonstration of field
The herbicide compositions prepared in examples 1 to 4 above were used for field weed effect tests. Weeds occurring in the field are mainly: ryegrass, myrtle, shepherd's purse, wild rape, cleavers, beef hair, etc.
The test method comprises the following steps: in the 1-3 leaf period of weeds, stem and leaf spraying is adopted, and the water adding amount is 450 kg/hectare. The investigation and control effects 30 days after the application are shown in Table 2.
Exemplary field effects of the formulated compositions described in Table 2
| Examples | Dosage (g a.i/ha) | Fresh weight control effect (%) |
| 1 | 465 | 98.2 |
| 2 | 465 | 99.8 |
| 3 | 465 | 97.8 |
| 4 | 465 | 97.5 |
Through a large number of experiments and researches, the composition is unexpectedly found that the composition has a surprising and unexpected synergistic effect when being used for preventing and killing gramineae, broadleaf grass and the like, the synergistic effect is more remarkable at a low dosage, the dosage can be reduced, the pollution to the environment is reduced, and the reasonable compounding reduces the agricultural cost, so that the composition has a good application prospect.
Claims (10)
1. A ternary weeding composition containing ciclopirox, which is characterized by comprising effective weeding amount of ciclopirox, active ingredient, namely ciclopirox,And diflufenican.
2. The herbicidal composition of claim 1 wherein the herbicidal composition comprises mesotrione,The weight ratio of diflufenican to diflufenican is 1-100:1-200:1-100, preferably 5-80:10-180:5-80, more preferably 10-60:30-160:10-70, and even more preferably 12-48:37.5-150:15-60.
3. The herbicidal composition according to claim 1 or 2, characterized in that the herbicidal composition comprises mesotrione,And diflufenican in an amount of 1-95% by mass, preferably 10-80% by mass of the total amount.
4. The herbicidal composition according to claim 1 or 2, characterized in that it further comprises conventional adjuvants.
5. The herbicidal composition of claim 4 wherein the conventional adjuvants comprise carriers and/or surfactants.
6. The herbicidal composition according to claim 1 or 2, characterized in that it further comprises at least one safener, preferably selected from one or more of bisbenzoxazole acid, cyprosulfamide, pyraclonil, cloquintocet-mexyl, gibberellic acid, furilazole, metcamifen.
7. The herbicidal composition according to claim 1 or 2, wherein the specific formulation of the herbicidal composition is a dispersible oil suspension, an aqueous suspension, a suspoemulsion, a wettable powder, an emulsifiable concentrate, a water dispersible granule, an aqueous emulsion or a microemulsion.
8. Use of a herbicidal composition as claimed in any of claims 1 to 7 for controlling weeds.
9. The use according to claim 8, wherein the herbicidal composition is used for selectively controlling weeds in crops of useful plants.
10. A method of controlling weed growth comprising applying the herbicidal composition of any one of claims 1 to 7 to the area where weeds are growing.
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