CN114158563B - Herbicide composition containing cycloheptane and application thereof - Google Patents
Herbicide composition containing cycloheptane and application thereof Download PDFInfo
- Publication number
- CN114158563B CN114158563B CN202111576169.8A CN202111576169A CN114158563B CN 114158563 B CN114158563 B CN 114158563B CN 202111576169 A CN202111576169 A CN 202111576169A CN 114158563 B CN114158563 B CN 114158563B
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- China
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- butyl
- penoxsulam
- cyhalofop
- Prior art date
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- SYJGKVOENHZYMQ-UHFFFAOYSA-N Penoxsulam Chemical compound N1=C2C(OC)=CN=C(OC)N2N=C1NS(=O)(=O)C1=C(OCC(F)F)C=CC=C1C(F)(F)F SYJGKVOENHZYMQ-UHFFFAOYSA-N 0.000 claims abstract description 61
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- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229940093476 ethylene glycol Drugs 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004136 fatty acid synthesis Effects 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 238000012395 formulation development Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 229960005150 glycerol Drugs 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000009036 growth inhibition Effects 0.000 description 1
- 229920003063 hydroxymethyl cellulose Polymers 0.000 description 1
- 229940031574 hydroxymethyl cellulose Drugs 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- NIQQIJXGUZVEBB-UHFFFAOYSA-N methanol;propan-2-one Chemical compound OC.CC(C)=O NIQQIJXGUZVEBB-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-M naphthalene-1-sulfonate Chemical compound C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-M 0.000 description 1
- 230000001338 necrotic effect Effects 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- JPMIIZHYYWMHDT-UHFFFAOYSA-N octhilinone Chemical compound CCCCCCCCN1SC=CC1=O JPMIIZHYYWMHDT-UHFFFAOYSA-N 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 239000002540 palm oil Substances 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 239000000312 peanut oil Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229940044654 phenolsulfonic acid Drugs 0.000 description 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- 230000005080 plant death Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229940068918 polyethylene glycol 400 Drugs 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229960002668 sodium chloride Drugs 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 239000000176 sodium gluconate Substances 0.000 description 1
- 229940005574 sodium gluconate Drugs 0.000 description 1
- 235000012207 sodium gluconate Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 150000003456 sulfonamides Chemical class 0.000 description 1
- 239000011885 synergistic combination Substances 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000009685 tusanqi Substances 0.000 description 1
- 229940045136 urea Drugs 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 230000001018 virulence Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000004260 weight control Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 235000010493 xanthan gum Nutrition 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a herbicide composition containing cycloheptyl ether and application thereof. The herbicide composition disclosed by the invention has the advantages that the cycloheptane, the penoxsulam and the cyhalofop-butyl are combined according to the proportion disclosed by the invention, so that the weeding effect can be effectively improved; the herbicide composition has the advantages of good control effect on conventional gramineous weeds, nutgrass flatsedge and broadleaf weeds in paddy fields, small dosage, cost saving, environment pollution reduction, quick response after application, safety to crops, and positive effects on slowing down weed resistance, reducing the dosage of drugs and the like.
Description
Technical Field
The invention relates to the technical field of pesticides, in particular to a herbicide composition containing clomazone, penoxsulam and cyhalofop-butyl and application thereof.
Background
At present, rice is one of four most important grain crops in China, and the problem that weeds in a paddy field compete with rice for nutrients and sunlight is always a main factor influencing the yield of the rice. The reasonable application of herbicide is one of the direct and effective means for removing weeds, and limited by the safety of rice, the herbicide which can be applied has limited weed killing spectrum, and meanwhile, aiming at different weed pests, different herbicides are also used, so that a great deal of manpower, material resources and financial resources are consumed, the environment is polluted, and a great deal of herbicide continuously using a single active ingredient is easy to generate drug resistance.
Aiming at the problems of environmental pollution caused by a large amount of pesticides, increasing the pesticide cost and the labor cost of farmers, developing a synergistic herbicide composition, and utilizing the synergistic effect generated after the effective components of the herbicide are compounded, the problems of large dosage and poor effect of the single herbicide can be solved, and the generation of weed resistance can be delayed by utilizing the interactive use of different pesticides, so that the ideal use effect is obtained. Therefore, there is an urgent need to develop a composition for controlling paddy field weeds which can be combined to use herbicides of different mechanisms of action and can achieve synergistic effects, and such a composition is more effective for controlling paddy field weeds, less in amount and broader in herbicidal spectrum. The herbicidal composition is a hot spot subject for effectively removing weeds in paddy fields.
The cycloheptane is a compound 1, 4-epoxy-p-o-2-yl 2-methylbenzyl ether trade name, english generic name is Cinmethylin, molecular formula is C18H26O2, relative molecular weight is 274.4, CAS registry number is 87818-31-3, and its structural formula is shown in formula (1):
formula (1). The herbicide is acyl carrier protein (acyl carrier protein; ACP) for inhibiting growth of meristem, and fatty acid thioesterase (fatty acid thioesterase; FAT) selective inhibitor for inhibiting fatty acid biosynthesis, and destroying cell membrane to kill weeds.
Penoxsulam english name: penoxsulam, CAS accession number: 219714-96-2, sulfonamide herbicide, chemical name: 3- (2, 2-difluoroethoxy) -N- (5, 8-dimethoxy- [1,2,4] triazolo [1,5-C ] pyrimidin-2-yl) - α, α, α -trifluorotolyl-2-sulfonamide, of formula: C16H14F5N5O5S, molecular weight: 483.37, the structural formula of which is shown as formula (2):
formula (2). Penoxsulam (penoxsulam) is a triazolopyrimidine sulfonamide herbicide that acts by inhibiting acetolactate synthase (ALS). Penoxsulam is a conduction herbicide and is absorbed by stems, leaves, buds and root systems, and is transmitted to meristematic tissues through xylem and phloem to inhibit plant growth, so that the growing point is turned green, the terminal buds turn red and necrotic 2 weeks after treatment, and the growing point is turned green after 3-4 weeks of plant death.
Cyhalofop butyl, cyhalofop butyl; chemical name: (R) -2- [ 4-cyano-2-fluorophenoxy ] phenoxy ] propanoic acid butyl ester; (R) -2- [4- (4-cyano-2-fluorophenoxy) phenoxy ] propanoic acid butyl ester; and (3) thousands of gold. CAS accession number: 122008-85-9, which belongs to aryloxy phenoxy propionic acid herbicides, chemical name: (R) -2- [4 (4-cyano-2-fluorophenoxy) phenoxy ] -propionic acid butyl ester of formula: C20H20FNO4, molecular weight: 357.4, the structural formula of which is shown as formula (3):
formula (3). Cyhalofop-butyl belongs to an aryloxy phenoxy propionic acid herbicide, has high safety on rice varieties, is also a systemic conductive herbicide like other varieties, is a selective herbicide for paddy fields, is absorbed by leaves and leaf sheaths of plants, is conducted by phloem, is accumulated in meristematic regions of the plants, resists acetyl coenzyme A carboxylase (ACCase), stops fatty acid synthesis, can not normally carry out cell growth and division, and has a lipid-containing structure such as a membrane system destroyed, and finally leads to death of the plants. From cyhalofop-butyl to weed death, it generally takes 3 to 4 weeks.
The combination of penoxsulam and cyhalofop-butyl is a herbicide composition that is relatively effective in the control of rice weeds, but resistance to rice fields has emerged over many years of use. Those skilled in the art are also constantly researching related pesticide compound compositions to solve the problem of resistance of penoxsulam and cyhalofop-butyl. For example:
CN201410067622.6 (publication No. CN103814919 a) discloses an oil suspension containing cyhalofop-butyl, pyriminobac-methyl and penoxsulam, wherein the active ingredients are cyhalofop-butyl, pyriminobac-methyl and penoxsulam, and the oil suspension contains, by mass, 5-30% of cyhalofop-butyl, 1-10% of pyriminobac-methyl and 1-10% of penoxsulam. However, the composition has a problem that the effect on paddy field sedge and broadleaf weeds is not ideal.
Those skilled in the art will know whether synergistic combinations of pesticide ingredients are not anticipated. Therefore, the composition with synergistic effect can be developed to prevent and treat gramineous weeds, nutgrass flatsedge and broadleaf weeds in paddy fields, and the novel herbicide with safety, environmental protection, high efficiency and low toxicity is used for solving the problems that the resistance is further enhanced, the prevention difficulty is further increased and the like caused by the fact that the current paddy field weeds are usually prevented and treated by increasing the pesticide dosage.
Disclosure of Invention
The invention aims to provide a pesticide composition, which solves the problem that the current herbicide generates resistance for a long time, so that the difficulty in preventing and controlling weeds is increased, and particularly aims to solve the problem of resistance generated by using penoxsulam and cyhalofop-butyl compositions for a long time.
The applicant of the present application has found through long-term research that it is very difficult to solve the problem of resistance caused by penoxsulam and cyhalofop-butyl compositions, and to obtain a new herbicidal composition with synergistic effect. The applicant has studied various pesticides, for example, oxadiazon, clomazone, etc., in combination with penoxsulam and cyhalofop-butyl, which have not been found to produce synergistic effects, and in contrast, compositions which produce antagonistic effects. The applicant has also studied other ternary compositions, for example, clomazone bispyribac-sodium and cyhalofop-butyl, clomazone penoxsulam bispyribac-sodium, but has not found suitable ternary compositions with synergistic effects.
In the research process, the applicant has unexpectedly found that the composition of the cycloheptane, the penoxsulam and the cyhalofop-butyl can effectively solve the problem of resistance increase caused by the composition of the penoxsulam and the cyhalofop-butyl, has better synergistic effect in the weed control process, and greatly reduces the use amount of pesticides.
In one aspect, the present application provides a synergistic herbicidal composition comprising clomazone, penoxsulam and cyhalofop-butyl.
In the composition, the content of penoxsulam is 0.01-80 parts by weight and the content of cyhalofop-butyl is 0.01-95 parts by weight relative to 1 part by weight of the cycloheptane.
In the above composition, preferably, the penoxsulam content is 0.1 to 17 parts by weight and the cyhalofop-butyl content is 0.5 to 35 parts by weight, relative to 1 part by weight of the cycloheptyl ether.
More preferably, the penoxsulam content is 1-2.5 parts by weight and the cyhalofop-butyl content is 1-6 parts by weight, relative to 1 part by weight of the cycloheptane.
In another aspect the invention provides a formulation comprising the above composition, comprising the above composition and a suitable pesticide adjuvant.
The herbicide composition in the preparation accounts for 1% -95%, preferably 5% -80%, more preferably 5% -60% of the weight of the preparation.
Preferably, the content of the pesticide adjuvant component is 0.01-95 parts by weight relative to 1 part by weight of the active ingredient in the preparation; preferably, the auxiliary ingredient is contained in an amount of 1 to 80 parts by weight relative to 1 part by weight of the active ingredient.
Optionally, the auxiliary ingredients of the present invention include at least one of wetting agents, dispersing agents, emulsifying agents, organic solvents, thickening agents, organic suspending media, anti-freezing agents, antifoaming agents, binders, disintegrants, water, solid inert carriers, and preservatives.
Furthermore, the pesticide composition provided by the invention is one of oil suspending agent, microemulsion, wettable powder, emulsifiable solution, water aqua, microcapsule suspending agent, aqueous emulsion, granule and water dispersible granule.
In another aspect, the present invention provides the use of the above composition or herbicidal formulation for the control of field weeds, such as grassy weeds and annual cyperus and broadleaf weeds, after rice seedlings for field crops, but is not limited thereto.
Preferably, the paddy weeds in the field crops are at least one of barnyard grass, marpool, potherb mustard, amaranth, cyperus esculentus and corm Eleocharitis.
The beneficial effects of the invention include, but are not limited to:
1. the composition of the present invention has a synergistic effect which is not expected from the pesticide composition;
2. the herbicide composition has the advantages that the herbicide resistance of weeds can be obviously delayed by the combination of the clomazone, the penoxsulam and the cyhalofop-butyl;
3. the ternary composition of the invention widens the weeding spectrum, and can prevent and treat various weeds under the condition of reducing the using amount of pesticides;
4. the pesticide active ingredients in the ternary composition are combined according to the proportion of the invention, so that the weeding composition which is equivalent to the single compound in weed control can be provided under the condition of obviously reduced equal application rate, the dosage is low, the cost can be reduced, compared with the single compound, the weed control level is maintained or improved, the effect is quick after application, and the weeding composition is safe for applied rice crops and reduces the pollution to the environment.
Detailed Description
The following describes specific embodiments of the present invention in detail. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention of the disclosure.
The invention provides a pesticide composition containing cycloheptatriene, penoxsulam and cyhalofop-butyl. Wherein, in the pesticide composition, the content of penoxsulam is 0.01-80 parts by weight and the content of cyhalofop-butyl is 0.01-95 parts by weight relative to 1 part by weight of the cycloheptyl ether. Within this range, the ternary compositions of the invention exhibit a strong synergistic effect.
In the further composition of the clomazone, the penoxsulam and the cyhalofop-butyl, the penoxsulam content is 0.1-17 parts by weight and the cyhalofop-butyl content is 0.5-35 parts by weight relative to 1 part by weight of the clomazone; preferably, the penoxsulam is contained in an amount of 1 to 2.5 parts by weight and the cyhalofop-butyl is contained in an amount of 1 to 6 parts by weight, relative to 1 part by weight of the cycloheptane. Within the above preferred ranges, the synergistic effect of the clomazone, penoxsulam and cyhalofop-butyl compositions of the present invention is more pronounced.
In order to better exert the performance of the herbicide composition, the herbicide composition can be combined with a suitable pesticide adjuvant to prepare a pesticide preparation, wherein the content of the adjuvant component is 0.01-95 parts by weight relative to 1 part by weight of the active ingredient; preferably, the auxiliary ingredient is contained in an amount of 1 to 80 parts by weight relative to 1 part by weight of the active ingredient. The auxiliary components used are in the preferred range, and the three active components can be comprehensively and rapidly applied to the weed body to play a role, so that the activity on the weeding effect is further improved.
In one possible implementation of the above herbicide composition, the adjuvant ingredients include at least one of wetting agents, dispersants, emulsifiers, organic solvents, thickeners, organic suspending media, antifreeze agents, defoamers, binders, disintegrants, water, solid inert carriers, and preservatives. In the present invention, no special requirement is imposed on the auxiliary agent, and the components commonly used in the art can be selected as required. These ingredients may be selected in conventional amounts depending upon the dosage form in which the present herbicide composition is formulated, as is well known to those skilled in the art and will not be described in detail herein.
For the auxiliary components commonly used in the art, the wetting agent can be one or more of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, fatty alcohol polyoxyethylene ether, sodium di-sec-octyl maleate sulfonate, pull-open powder BX, sodium lauryl sulfate, wetting penetrating agent F and wetting agent T;
further, the dispersing agent can be one or more of sodium diisobutylnaphthalene sulfonate, polyacrylate, phenolsulfonic acid or naphthalene sulfonate, lignin sulfonate, polycarboxylate, alkyl naphthalene sulfonate, polycarboxylate and sodium methylenedinaphthyl sulfonate;
the emulsifier can be selected from one or more of fatty acid polyoxyethylene ether, alkylphenol polyoxyethylene ether, sulfosuccinic acid ester, styrylphenol polyoxyethylene ether, nonylphenol polyoxyethylene ether, castor oil polyoxyethylene ether, polyoxyethylene octyl anisole, calcium dodecyl benzene sulfonate, octyl phenol or nonylphenol dodecyl sodium benzene sulfonate, triphenyl ethylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, ethoxylated isooctyl ether, fatty amine polyoxyethylene ether and triphenyl ethylphenol polyoxyethylene ether phosphate;
the solvent can be one or more of cyclohexanone, water, ethanol, ethylene glycol monomethyl ether, isopropanol, methanol acetone, solvent oil, N, N-dimethylformamide and isoamyl alcohol;
the thickener can be one or more of white carbon black, xanthan gum, polyvinyl alcohol, magnesium aluminum silicate, polyethylene glycol, polyvinylpyrrolidone, hydroxymethyl cellulose and organic bentonite;
the organic suspending medium can be selected from one or more of methyl oleate, methyl vegetable oil, soybean oil, peanut oil, corn oil, rapeseed oil, olive oil and palm oil;
the antifreezing agent can be one or more of urea, ethylene glycol, polyethylene glycol 400, propylene glycol, 1, 2-propylene glycol, glycerol and sodium chloride;
the defoamer can be one or more of polyether, organic silicon and modified silicon polyether;
the binder can be one or more of sucrose, maltose, dextrin and sodium gluconate;
the disintegrating agent can be one or more of sodium chloride, urea, sodium sulfate, polyvinylpyrrolidone, ammonium sulfate, sodium carbonate, sodium carboxymethyl starch and bentonite;
the solid inert carrier can be one or more of starch, diatomite, kaolin, demonstrabilite, attapulgite, bentonite, talcum powder and light calcium carbonate;
the preservative can be one or more of kathon, benzoic acid and sodium benzoate;
according to another aspect of the present invention, the formulation of the herbicide composition of the present invention may be prepared into various common dosage forms, and the herbicide dosage form may be one of an oil suspension, a microemulsion, a wettable powder, an emulsifiable concentrate, an aqueous solution, a microcapsule suspension, an aqueous emulsion, a granule and a water dispersible granule. The preparation can be carried out by adopting a preparation method known in the art to prepare various dosage forms, and the details are not repeated here.
According to the invention, for the herbicide composition, different pesticide auxiliary ingredients can be selected according to different dosage forms.
For example, the herbicide compositions of the present invention may be prepared as oil suspensions, and the adjuvant ingredients may include emulsifiers, dispersants, solvents, thickeners, organic suspending agents; the content of the emulsifier is 5-20 parts by weight, the content of the dispersant is 5-10 parts by weight, the content of the solvent is 5-30 parts by weight, the content of the thickener is 1-5 parts by weight, and the content of the organic suspending medium is 20-60 parts by weight, relative to 1 part by weight of the active ingredient.
Alternatively, the herbicide composition of the present invention may be prepared as a suspension agent, and the adjuvant ingredients may include dispersants, wetting agents, thickeners, preservatives, antifreeze agents, antifoaming agents, and water; the content of the dispersing agent is 5-20 parts by weight, the content of the wetting agent is 5-10 parts by weight, the content of the thickening agent is 1-5 parts by weight, the content of the preservative is 0.1-5 parts by weight, the content of the antifreezing agent is 1-20 parts by weight, the content of the antifoaming agent is 0.1-5 parts by weight, and the content of the water is 5-70 parts by weight, relative to 1 part by weight of the active ingredient.
Alternatively, the herbicide composition of the present invention may be prepared as an emulsifiable concentrate, and the adjuvant ingredients may include an emulsifier and a solvent; the content of the emulsifier is 5 to 20 parts by weight and the content of the solvent is 5 to 70 parts by weight relative to 1 part by weight of the active ingredient.
Alternatively, the herbicide composition of the present invention may be prepared as a microemulsion, and the adjuvant ingredients may include an emulsifier, a solvent, an antifreezing agent, an antifoaming agent and water; the content of the emulsifier is 5-20 parts by weight, the content of the solvent is 5-30 parts by weight, the content of the antifreezing agent is 0.5-5 parts by weight, the content of the antifoaming agent is 0.1-10 parts by weight, and the content of the water is 5-70 parts by weight, relative to 1 part by weight of the active ingredient.
Or the herbicide composition can be prepared into water dispersible granules, and the auxiliary ingredients can comprise dispersing agents, wetting agents, disintegrating agents and solid inert carriers; the content of the dispersing agent is 5-20 parts by weight, the content of the wetting agent is 1-10 parts by weight, the content of the disintegrating agent is 0.5-20 parts by weight, and the content of the solid inert carrier is 0.1-50 parts by weight, relative to 1 part by weight of the active ingredient.
Alternatively, the herbicide composition of the invention can be prepared into wettable powder, and the auxiliary ingredients can comprise wetting agents, dispersing agents and solid inert carriers; the content of the wetting agent is 5-30 parts by weight, the content of the dispersing agent is 5-20 parts by weight, and the content of the solid inert carrier is 10-70 parts by weight relative to 1 part by weight of the active ingredient.
The herbicide composition according to the invention may be provided in finished form, i.e. the components of the composition have been mixed; or providing each component in the form of individual preparation, and mixing well before use.
The pesticide composition provided in the embodiment of the invention is preferably in the form of an oil suspension agent from the viewpoint of herbicide using methods. According to the invention, the herbicide composition is used for preventing and controlling gramineous weeds, nutgrass flatsedge and broadleaf weeds of paddy field crops, has a remarkable synergistic effect, greatly improves the prevention and control effect, can reduce the use amount of pesticides, and reduces the use cost and environmental pollution; the quick acting of preventing and killing weeds can be improved, and the herbicide composition can take effect more quickly and prevent and kill weeds as soon as possible; can delay the generation of weed drug resistance, has wide activity spectrum and is safe to rice crops.
The herbicide composition provides a new choice for preventing and controlling weeds in paddy fields.
The invention is further illustrated by the following examples, which are not intended to be limiting in any way.
Example 1 18% clomazone penoxsulam cyhalofop-butyl oil suspension
2.9 parts by weight of cycloheptane, 4.9 parts by weight of penoxsulam, 10.2 parts by weight of cyhalofop-butyl, 15 parts by weight of emulsifying agent (castor oil polyoxyethylene ether), 15 parts by weight of solvent oil, 2 parts by weight of organic bentonite and 50 parts by weight of methyl oleate are taken and uniformly mixed to obtain the herbicide composition of the embodiment.
EXAMPLE 2 18% clomazone penoxsulam cyhalofop-butyl oil suspension
6 parts by weight of cycloheptane, 6 parts by weight of penoxsulam, 6 parts by weight of cyhalofop-butyl, 15 parts by weight of emulsifier (castor oil polyoxyethylene ether), 15 parts by weight of solvent oil, 2 parts by weight of organic bentonite and 50 parts by weight of methyl oleate are taken and uniformly mixed to obtain the herbicide composition of the embodiment.
Example 3 18% clomazone penoxsulam cyhalofop-butyl oil suspension
1.9 parts by weight of cycloheptane, 4.8 parts by weight of penoxsulam, 11.3 parts by weight of cyhalofop-butyl, 15 parts by weight of emulsifying agent (castor oil polyoxyethylene ether), 15 parts by weight of solvent oil, 2 parts by weight of organic bentonite and 50 parts by weight of methyl oleate are taken and uniformly mixed to obtain the herbicide composition of the embodiment.
EXAMPLE 4 18% clomazone penoxsulam cyhalofop-butyl oil suspension
11.2 parts by weight of cycloheptane, 1.12 parts by weight of penoxsulam, 5.68 parts by weight of cyhalofop-butyl, 15 parts by weight of emulsifying agent (castor oil polyoxyethylene ether), 15 parts by weight of solvent oil, 2 parts by weight of organic bentonite and 50 parts by weight of methyl oleate are taken and uniformly mixed to obtain the herbicide composition of the embodiment.
EXAMPLE 5 18% clomazone penoxsulam cyhalofop-butyl oil suspension
0.34 part by weight of cycloheptane, 5.78 parts by weight of penoxsulam, 11.88 parts by weight of cyhalofop-butyl, 15 parts by weight of emulsifying agent (castor oil polyoxyethylene ether), 15 parts by weight of solvent oil, 2 parts by weight of organic bentonite and 50 parts by weight of methyl oleate are taken and uniformly mixed to obtain the herbicide composition of the embodiment.
EXAMPLE 6 18% clomazone penoxsulam cyhalofop-butyl oil suspension
17.6 parts by weight of cycloheptane, 0.2 part by weight of penoxsulam, 0.2 part by weight of cyhalofop-butyl, 15 parts by weight of emulsifying agent (castor oil polyoxyethylene ether), 15 parts by weight of solvent oil, 2 parts by weight of organic bentonite and 50 parts by weight of methyl oleate are taken and uniformly mixed to obtain the herbicide composition of the embodiment.
EXAMPLE 7 18% clomazone penoxsulam cyhalofop-butyl oil suspension
0.1 part by weight of cycloheptane, 8 parts by weight of penoxsulam, 9.5 parts by weight of cyhalofop-butyl, 15 parts by weight of emulsifying agent (castor oil polyoxyethylene ether), 15 parts by weight of solvent oil, 2 parts by weight of organic bentonite and 50 parts by weight of methyl oleate are taken and uniformly mixed to obtain the herbicide composition of the embodiment.
EXAMPLE 8 30% cycloheptatriene, penoxsulam, cyhalofop-butyl emulsifiable concentrate
2.36 parts by weight of cycloheptane, 4 parts by weight of penoxsulam, 23.64 parts by weight of cyhalofop-butyl, 10 parts by weight of an emulsifier (styrylphenol polyoxyethylene ether) and 60 parts by weight of a solvent (5 parts by weight of methanol, 55 parts by weight of aromatic hydrocarbon solvent oil) are taken and uniformly mixed, so that the herbicide composition of the embodiment is obtained.
EXAMPLE 9 9% clomazone-penoxsulam-cyhalofop-butyl microemulsion
1.06 parts by weight of cycloheptane, 4.43 parts by weight of penoxsulam, 3.51 parts by weight of cyhalofop-butyl, 15 parts by weight of an emulsifier (castor oil polyoxyethylene ether) and 20 parts by weight of solvent cyclohexanone, 4 parts by weight of ethylene glycol, 0.1 part by weight of an organosilicon antifoaming agent and 51.9 parts by weight of water are uniformly mixed, and the herbicide composition of the embodiment is obtained.
EXAMPLE 10 35% cycloheptatriene, penoxsulam, cyhalofop-butyl suspension
5 parts by weight of cycloheptane, 5 parts by weight of penoxsulam, 25 parts by weight of cyhalofop-butyl, 5 parts by weight of an emulsifier (trityl phenol polyoxyethylene ether phosphate), 1 part by weight of nekal BX, 1 part by weight of thickener magnesium aluminum silicate, 0.5 part by weight of preservative sodium benzoate, 4 parts by weight of antifreezing agent (ethylene glycol), 0.3 part by weight of organic silicon defoamer and 53.2 parts by weight of water are uniformly mixed, so that the herbicide composition of the embodiment is obtained.
Example 11.5% cycloheptatriene, penoxsulam, cyhalofop-butyl Water dispersible granule
4 parts by weight of cycloheptane, 40 parts by weight of penoxsulam, 0.5 part by weight of cyhalofop-butyl, 7 parts by weight of alkyl naphthalene sulfonate, 2 parts by weight of sodium dodecyl sulfate, 10 parts by weight of sodium sulfate and 36.5 parts by weight of kaolin are uniformly mixed by a spiral stirrer, crushed to 325 meshes by a jet mill, and then granulated, sieved and dried to obtain the herbicide composition of the embodiment.
EXAMPLE 12 55% Tethofen-penoxsulam-cyhalofop-butyl wettable powder
2.61 parts by weight of cycloheptane, 0.26 part by weight of penoxsulam, 52.13 parts by weight of cyhalofop-butyl, 8 parts by weight of lignosulfonate, 2 parts by weight of sodium dodecyl sulfate, 8 parts by weight of white carbon black and 27 parts by weight of kaolin are taken, uniformly mixed by a spiral stirrer, and crushed to 325 meshes by a jet mill, so as to obtain the herbicide composition of the embodiment. .
Comparative example 1 18% clomazone oil suspension
An 18% zepinate oil suspension was prepared using the procedure of example 1, except that: the active ingredient is 18 parts by weight of cycloheptyl ether.
Comparative example 2 18% penoxsulam oil suspension
An 18% penoxsulam oil suspension was prepared using the procedure of example 1, except that: the active ingredient is 18 parts by weight of penoxsulam.
Comparative example 3 18% cyhalofop-butyl oil suspension
An 18% cyhalofop-butyl oil suspension was prepared using the procedure of example 1, except that: the active ingredient is 18 parts by weight of cyhalofop-butyl.
Comparative example 4 18% clomazone penoxsulam oil suspension
An 18% zepinate oil suspension was prepared using the procedure of example 1, except that: the active ingredient is 18 parts by weight of cycloheptyl ether.
Comparative example 5 18% clomazone cyhalofop-butyl oil suspension
An 18% zepinate oil suspension was prepared using the procedure of example 1, except that: the active ingredients are 3 parts by weight of cycloheptane and 15 parts by weight of cyhalofop-butyl.
Comparative example 6
A60 g/L penoxsulam-cyhalofop-butyl oil suspension (trade name: daoxi) is purchased from a common Tao Shiyi agricultural company.
Comparative example 7 28% oxadiazon penoxsulam cyhalofop-butyl oil suspension
A 28% zepinate oil suspension was prepared using the procedure of example 1, except that: the active ingredients are 13 parts by weight of oxadiazon, 4.8 parts by weight of penoxsulam and 10.2 parts by weight of cyhalofop-butyl.
Comparative example 8 25% clomazone penoxsulam cyhalofop-butyl oil suspension
A 25% zepinate oil suspension was prepared using the procedure of example 1, except that: the active ingredients are 10 parts by weight of clomazone, 4.8 parts by weight of penoxsulam and 10.2 parts by weight of cyhalofop-butyl.
Comparative example 9 18% clomazone bispyribac-sodium cyhalofop-butyl oil suspension
An 18% cycloheptatriet oxazachlor cyhalofop-butyl oil suspension was prepared by the method of example 1, except that: the active ingredients are 3 parts by weight of cycloheptane, 4.8 parts by weight of oxazoxamide and 10.2 parts by weight of cyhalofop-butyl.
Comparative example 10 18% clomazone penoxsulam bispyribac-sodium oil suspension
An 18% clomazone penoxsulam oxaden oil suspension was prepared by the method of example 1, except that: the active ingredients are 3 parts by weight of cycloheptane, 4.8 parts by weight of penoxsulam and 10.2 parts by weight of metamifop.
Indoor biological testing screening and field test
The invention adopts a method combining indoor bioassay and field test to prove the synergy of the composition. The proportions (including percentages) mentioned below are mass ratios unless otherwise specified.
Test example 1: indoor Activity assay
The purpose of the experiment is as follows: the fresh weight control effect of the clomazone, penoxsulam and cyhalofop-butyl and different mixed compositions thereof on weeds is measured under the condition of greenhouse potting, and the combined effect is evaluated, so that scientific basis is provided for formulation development of mixed medicaments and pesticide registration field efficacy test.
The test method comprises the following steps: the test is carried out under the condition of a greenhouse, different types of weed seeds are sowed in the flowerpot, 25 seeds in each pot are ensured, thick sand-mixing fine soil with the thickness of about 1cm is covered on the seeds, water is added from the bottom of the flowerpot, so that the soil is kept moist, and the water content is 25-35%. Culturing in an illumination incubator, spraying stem and leaf when weeds grow to 5cm after soil emergence, repeating for 4 times in each treatment group, and taking the treatment without the medicament as a control. And (5) culturing the treated test materials in a greenhouse, and periodically observing the growth condition of target weeds. After 30 days of test treatment, the target crop is visually inspected for signs of damage and growth inhibition, and the fresh weight of the aerial parts is called.
The target to be tested is three weeds of eleusine indica, cyperus rotundus and glossopus arvensis.
Test agent: the sample medicaments prepared in comparative example 1, comparative example 2 and comparative example 3 are selected to be used singly or as a compound mixture prepared according to the requirement and in corresponding proportion (the application amount of the active ingredients of the composition is the application amount of the active ingredients per mu).
The evaluation method comprises the following steps:
fresh weight inhibition (%) was calculated.
Fresh weight inhibition ratio P (%) = (control fresh weight-treated fresh weight)/control fresh weight 100
The combined action type of two herbicides on weeds was evaluated by the Gowing method. The theoretical control effect of the mixed herbicide is calculated according to the following formula:
E0＝X+Y(100-X)/100
wherein X is the fresh weight inhibition rate of the component A on target weeds when the component A is singly used; y is the fresh weight inhibition rate of the component B on target weeds when the component B is single, and E0 is the theoretical prevention effect of the component A and the component B on targets when the component A and the component B are mixed; e is the actual control effect on the target when the component A and the component B are mixed, and the result is shown in the table 1.
The combined action evaluation method of the three herbicides was evaluated using the following Colby equation:
E＝X+Y+Z-[(X*Y+X*Z+Y*Z)/100]-X*Y*Z/10000
wherein X is the fresh weight inhibition rate of the component A on target weeds when the component A is singly used; y is the fresh weight inhibition rate of the component B on target weeds when the component B is single; z is the fresh weight inhibition rate of the component C on target weeds when the component C is singly used; e0 is the theoretical prevention effect of the fresh weight inhibition rate of the target when the component A, the component B and the component C are mixed; e is the actual control of the targets of component A, component B and component C when used alone, and the results are shown in Table 1.
Evaluation criteria: synergy is indicated when E-E0>10%, additive when E-E0 is between + -10% and antagonism is indicated when E-E0< -10%.
Table 1: combined virulence action of herbicide composition on three weeds (spraying method)
As can be seen from the results in Table 1, when the three components of the clomazone, the penoxsulam and the cyhalofop-butyl are compounded, compared with the independent use or the combined use of the respective pesticide components, the three components have very good prevention effect on the eleusine indica, the special-shaped nutgrass and the glossodes canadensis. The weight ratio of the cycloheptane, the penoxsulam and the cyhalofop-butyl is 1:0.01-80: the composition has good synergistic effect in the range of 0.01-95, and especially has the synergistic effect of 1:3.4:7, preparing a base material; 1:1.7:3.5;1:0.85:1.75;1:0.1:0.5;1:17:35;1:0.01:0.01;1:80: and 95, the comprehensive control effect measured in practice is obviously higher than the theoretical control effect, and the E-E0 value is between 12.3 and 32.1, which shows that the clomazone, penoxsulam and cyhalofop-butyl generate obvious synergistic effect under the condition of the mixture ratio.
Test example 2:
the weeding composition is used for measuring the field control effect of weeds in the paddy field.
The herbicidal compositions of examples 1 to 12 and comparative examples 1 to 10 were tested in paddy fields for their control effects on grassy weeds, sedge weeds and broad-leaved weeds (including barnyard grass, marpool, gynura segetum, amaranth, cyperus rotundus and corm Eleocharitis) in paddy fields, respectively, and the specific steps include: in the 2-3 leaf period of rice, according to the area of test plot, accurately weighing various medicines, diluting with water until the spraying amount is 30L/mu, uniformly spraying by using a knapsack sprayer, and selecting a sector-shaped spray head special for herbicide. When spraying, the liquid medicine is uniformly sprayed into the test cell, so that the phenomena of missing spraying and multiple spraying are avoided, and water is used for replacing the herbicide composition to serve as blank treatment. Except for the application of the herbicide according to the above scheme, the conditions of the other test cells were identical (the amounts used were all the amounts used for the application of the active ingredients of the composition per mu), the death of weeds was observed every 10 days within 30 days after the test, and the herbicidal activities of the various agents were compared. In addition, the growth of the crops was observed every 7 days within 21 days after the drug to examine whether the drug was harmful to the crops.
Weeds (barnyard grass, a pond, a potherb mustard, a water amaranth, a cyperus rotundus and a corm Eleocharitis) in the test treatment area were identified and counted every 10 days after the application, and the plant control effect was calculated according to the formula (A), and the results are shown in tables 2 to 4 below.
TABLE 2 results of field efficacy tests (10 days after the drug)
TABLE 3 results of field efficacy tests (20 days after the drug)
TABLE 4 results of field efficacy tests (30 days post-drug)
From the above tables 2 to 4, it is known that the ternary compound application of the herbicide composition of the clomazone, the penoxsulam and the cyhalofop-butyl can obtain excellent weeding effect with lower application amount of the composition, obviously improve the control level of the herbicide composition on gramineae, broadleaf weeds and sedge of paddy fields, have outstanding synergistic effect, can obtain more obvious synergistic effect compared with other components or compositions, and has less dosage of the pesticide, and reduces the use cost and environmental pollution; meanwhile, the herbicide composition has the advantages that after the herbicide composition is applied, the herbicide composition has quick weeding effect after the herbicide composition is applied, the herbicidal activity is quickly improved, the condition that weeds compete with rice for nutrients is improved as soon as possible, and the normal growth of rice is ensured.
In conclusion, the herbicide composition of the invention has the advantages of further improving the control effect of weeds in paddy fields, reducing the dosage, expanding the weeding spectrum, and most importantly, the herbicide composition has quick response to weeding after being applied, can quickly act on targets in 10 days of application, obviously improves the weeding activity, shortens the weeding time, ensures the fertility of paddy fields, reduces the nutrition consumption of paddy fields, and can enable paddy rice to normally grow.
The preferred embodiments of the present invention have been described above, however, the present invention is not limited to the specific details in the above embodiments. The technical scheme of the invention can be combined and improved in various proper modes on the premise of no contradiction. These modifications are all within the scope of the present invention as well.
Claims (10)
1. The weeding composition comprises the active ingredients of the clomazone, the penoxsulam and the cyhalofop-butyl, and is characterized in that the weight ratio of the clomazone to the penoxsulam to the cyhalofop-butyl is 1:1-2.5:1-6.
2. A herbicide formulation comprising the composition of claim 1 and a suitable pesticide adjuvant.
3. The formulation of claim 2, wherein the formulation is formulated as a suitable dosage form.
4. The formulation of claim 3, wherein the formulation is one of an oil suspension, a microemulsion, a wettable powder, an emulsifiable concentrate, a water aqua, a microcapsule suspension, an aqueous emulsion, a granule, and a water dispersible granule.
5. The formulation according to any one of claims 2 to 4, wherein the herbicide active ingredient comprises 1% to 95% of the total weight of the formulation.
6. The formulation of claim 5, wherein the herbicide active ingredient comprises 5% -60% of the total weight of the formulation.
7. Use of a composition according to claim 1 and/or a formulation according to any one of claims 2 to 6 for controlling paddy field weeds.
8. The use according to claim 7, wherein the paddy field weeds are field weeds after seedlings of rice.
9. The use according to claim 8, wherein the field weeds after seedlings of rice are grasses and annual sedge and broadleaf weeds.
10. The use of claim 9, wherein the grassy weeds and annual nutgrass and broadleaf weeds are at least one of barnyard grass, marpool, ocular and amaranth, nutgrass flatsedge and corm Eleocharitis.
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| CN107708422A (en) * | 2015-07-10 | 2018-02-16 | 巴斯夫农业公司 | The method for preventing and treating Herbicid resistant or tolerance weeds |
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| CN107708422A (en) * | 2015-07-10 | 2018-02-16 | 巴斯夫农业公司 | The method for preventing and treating Herbicid resistant or tolerance weeds |
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