阅读说明：本技术 一种含噁唑酰草胺和胡椒基丁醚的农药组合物及其应用 (Pesticide composition containing metamifop and piperonyl butoxide and application thereof ) 是由 张威 夏飞 朱植银 谢远芳 程凡贵 于 2019-12-13 设计创作，主要内容包括：本发明提供了一种含噁唑酰草胺和胡椒基丁醚的农药组合物及其应用,属于农药技术领域。一种含噁唑酰草胺和胡椒基丁醚的农药组合物,包含有效量的两种活性成分噁唑酰草胺和胡椒基丁醚,其中,两种活性成分噁唑酰草胺和胡椒基丁醚的重量比为1～30∶30～1。本发明提供的农药组合物对于防除水稻田禾本科杂草的协同增效效应非常显著,同时还可兼治水稻田早期害虫稻蓟马,在扩大了防治谱的同时,还降低了农药使用量,减少了农药在农作物上的残留量,减轻了对环境的污染,极大地延缓了杂草对噁唑酰草胺抗药性的产生。(The invention provides a pesticide composition containing metamifop and piperonyl butoxide and application thereof, and belongs to the technical field of pesticides. A pesticide composition containing metamifop and piperonyl butoxide comprises effective amounts of two active ingredients of metamifop and piperonyl butoxide, wherein the weight ratio of the two active ingredients of metamifop and piperonyl butoxide is 1-30: 30-1. The pesticide composition provided by the invention has very obvious synergistic effect on preventing and killing gramineous weeds in a paddy field, can also be used for preventing and killing early pest thrips oryzae in the paddy field, expands the prevention and control spectrum, reduces the use amount of pesticides, reduces the residual quantity of the pesticides on crops, lightens the pollution to the environment, and greatly delays the generation of the drug resistance of the weeds to the metamifop.)

1. A pesticide composition containing metamifop and piperonyl butoxide, which is characterized by comprising effective amounts of two active ingredients of metamifop and piperonyl butoxide.

2. The pesticide composition as claimed in claim 1, wherein the weight ratio of the metamifop and piperonyl butoxide is 1-30: 30-1.

3. The pesticide composition as set forth in claim 1, wherein the weight ratio of metamifop to piperonyl butoxide in the pesticide composition is 1-2: 5-4.

4. The pesticide composition as set forth in claim 1, wherein the sum of the weights of the metamifop and the piperonyl butoxide in the pesticide composition accounts for 1% -90% of the total weight of the composition, and the balance is auxiliary components allowed to be added in the pesticide preparation.

5. The pesticide composition as set forth in claim 4, wherein the sum of the weights of the metamifop and the piperonyl butoxide in the pesticide composition accounts for 5-80% of the total weight of the composition.

6. The pesticide composition as set forth in claim 1, wherein the pesticide composition can be made into wettable powder, dry suspension, powder, granules, water dispersible granules, suspending agent, suspoemulsion, microcapsule suspension, microemulsion, emulsion in water, oil suspension, emulsifiable concentrate or effervescent tablet according to actual needs.

7. The pesticide composition as set forth in claim 4 or 5, wherein the auxiliary component in the pesticide composition is one or more of wetting agent, dispersant, emulsifier, co-surfactant, thickener, solvent, cosolvent, antifreeze, disintegrant, preservative, stabilizer, film-forming agent, sachet-forming agent, pH regulator, defoamer, colorant, filler, water.

8. The application of the pesticide composition containing metamifop and piperonyl butoxide is characterized in that the pesticide composition is applied to the treatment of pests in rice fields and lawns.

9. The application of the pesticide composition containing the metamifop and the piperonyl butoxide as claimed in claim 8, is characterized in that the pesticide composition is applied to control barnyard grass, moleplant seed and rice thrips.

Technical Field

The invention belongs to the technical field of pesticides, and particularly relates to a pesticide composition containing metamifop and piperonyl butoxide and application thereof.

Background

The rice is a main grain planting crop in China, the pests in the rice field at the early stage are many, barnyard grass, moleplant seeds and thrips oryzae are mainly used, the chemical control is the most economic and effective means in the pest control of the rice field, and the rice field pest control has the characteristics of low cost, high efficiency, simple and convenient operation, low labor intensity, obvious control effect and the like, but the chemical control of a single variety or a single action mode used continuously for a long time at high dose can generate the problems of drug resistance, resistance evolution and the like. Hitherto, the rational compounding or blending of different kinds of pesticides has the advantages of expanding the control spectrum, improving the control effect, delaying the generation of drug resistance and resistance, etc., and is one of the most effective methods for solving the problems.

At present, herbicides for paddy fields are relatively lagged in development, few in varieties and widely applied, such as penoxsulam, cyhalofop-butyl, bensulfuron-methyl, pretilachlor, methoxone and the like, but because the products have long service life, weeds generate drug resistance, and the control effects of the herbicides on barnyard grass and moleplant are not ideal. Therefore, a novel herbicide for rice weeding with high efficiency, low toxicity, economy and safety is urgently needed.

The metamifop is aminated by aryloxy phenoxy propionate herbicides developed by Korean chemical technology research institute, belongs to ACCase inhibitors, can inhibit the synthesis of plant fatty acids, and can effectively prevent and kill most annual gramineous weeds in rice fields, such as barnyard grass, moleplant seed, marsupium and goosegrass. The herbicide is safe to rice, environment-friendly, safe to other organisms and strong in mixability, can be mixed with main pesticide products, and does not influence pesticide effect when mixed.

Piperonyl butoxide, also known as synergistic ethers, insecticides. It can be used for killing insects such as rice, wheat, bean, etc. generated during storage, such as rice weevil and housefly. Is often used as synergist of pesticide to improve the pesticidal activity of pyrethrin, various pyrethroids, rotenone and carbamate pesticide. The synergistic effect of the herbicide is not reported.

The inventor of the invention has conducted intensive research on the compounded weeding effect of metamifop and piperonyl butoxide, and finds that the compounding of metamifop and piperonyl butoxide shows an unexpected synergistic effect on paddy field grassy weeds in a certain compounding ratio range on the basis of a large number of indoor formula screening tests and field efficacy tests, and the compounding and application of metamifop and piperonyl butoxide are not reported at present.

Disclosure of Invention

After a large number of compounding and screening experiments are carried out on the existing agricultural chemical, the invention discovers that the metamifop and the piperonyl butoxide have a synergistic effect on weed control after being compounded and combined, the weeding efficiency of the composition is greatly increased, the application dosage is obviously reduced, the safety is obviously improved, the environmental pollution is small, and the weed resistance is reduced.

In order to achieve the above purpose, the invention provides the following technical scheme:

the invention provides a pesticide composition containing metamifop and piperonyl butoxide, which comprises two active ingredients of metamifop and piperonyl butoxide in effective dose.

Preferably, in the pesticide composition, the weight part ratio of the active ingredients of the metamifop and the piperonyl butoxide is 1-30: 30-1.

Preferably, in the pesticide composition, the weight ratio of the active ingredients of the metamifop and the piperonyl butoxide is 1-10: 10-1; further preferably, the weight ratio of the active ingredients of the metamifop and the piperonyl butoxide is 1-5: 5-1; more preferably, the weight ratio of the active ingredients of the metamifop and the piperonyl butoxide is 1-2: 5-4.

Preferably, in the pesticide composition, the sum of the active ingredients of metamifop and piperonyl butoxide accounts for 1-90% of the total weight of the composition, and the balance is an auxiliary ingredient which is allowed to be added in the pesticide preparation; further preferably, the weight sum of the active ingredients of the metamifop and the piperonyl butoxide accounts for 5 to 80 percent of the total weight of the composition; more preferably, the sum of the weight of the active ingredients of the metamifop and the piperonyl butoxide accounts for 15 to 50 percent of the total weight of the composition.

When the active ingredient and other auxiliary ingredients in the pesticidal composition provided by the present invention are prepared into a pesticidal preparation commonly used in pesticides, the auxiliary agent includes one or more of a wetting agent, a dispersing agent, an emulsifier, a co-surfactant, a thickener, a solvent, a cosolvent, an antifreeze, a disintegrant, a preservative, a stabilizer, a film-forming agent, a sachet-forming agent, a pH adjuster, an antifoaming agent, a colorant, a filler, water, and the like, and the auxiliary agent is various ingredients commonly used in preparation or agriculturally allowed to be used, and is not particularly limited, and specific ingredients and amounts thereof are determined by experiments as needed.

Specifically, the wetting agent in the pesticide composition is selected from one or more of EO/PO block polyether, fatty alcohol polyoxyethylene ether, fatty alcohol ethoxy compound, tallow ethoxy ammonium salt, alkyl naphthalene sulfonate, fatty alcohol polyoxyethylene ether sulfate and acyl glutamate.

Specifically, the dispersing agent in the pesticide composition is selected from one or more of condensed naphthalene sulfonate, sodium phenolsulfonic acid condensate, sodium methyl naphthalene sulfonate formaldehyde condensate, sodium lignin sulfonate, sodium methylene dinaphthalene sulfonate, sodium acrylic acid homopolymer, high-molecular polycarboxylate, dioctyl sulfosuccinate, EO/PO block polyether and sodium maleic acid-acrylic acid copolymer.

Specifically, the emulsifier in the pesticide composition is selected from alkylphenol ethoxylates, benzyl phenol polyoxyethylene ether, phenethylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, phenethylphenol polyoxyethylene ether polyoxypropylene ether, fatty amine polyoxyethylene ether, castor oil ethylene oxide adduct and derivatives thereof, polyol fatty acid ester and ethylene oxide adduct thereof, alkylbenzene sulfonate, alkyl succinate sulfonate, alkyl biphenyl ether sulfonate, naphthalene sulfonic acid formaldehyde condensate, fatty alcohol sulfate, alkylphenol polyoxyethylene ether sulfate, aralkyl phenol polyoxyethylene ether sulfate, alkylphenol polyoxyethylene ether phosphate, phenethylphenol polyoxyethylene ether phosphate, fatty acid polyoxyethylene ester phosphate, alkylamine polyoxyethylene ether phosphate, alkyl phosphate, alkylphenol polyoxyethylene ether formaldehyde condensate, aralkyl phenol polyoxyethylene ether formaldehyde condensate, benzyl phenol polyoxyethylene ether, benzyl alcohol, benzyl phenol polyoxyethylene ether, methyl alcohol, benzyl phenol polyoxyethylene ether, one or more of a diphenol polyoxyethylene ether formaldehyde condensate, a polyoxyethylene polyoxypropylene block copolymer, an alkyl naphthalene sulfonic acid formaldehyde condensate, a phenol formaldehyde condensate sulfonate, an alkyl phenol polyoxyethylene ether formaldehyde condensate sulfate, a methyl cellulose and a derivative thereof, an alkyl ammonium salt, an amino alcohol fatty acid derivative, a polyamine fatty acid derivative, a quaternary ammonium salt, a tallow ethoxy ammonium salt, an alkyl naphthalene sulfonate, an amino acid, an amine oxide, a betaine, a fatty alcohol polyoxyethylene ether sulfate and an acyl glutamate.

Specifically, the cosurfactant in the pesticide composition is selected from one or more of n-butanol, isobutanol and n-octanol.

Specifically, the thickener in the pesticide composition is selected from one or more of xanthan gum, magnesium aluminum silicate, sodium carboxymethyl cellulose, sodium starch phosphate, sodium starch octenyl succinate and polyvinyl alcohol.

Specifically, the solvent in the pesticide composition is selected from one or more of xylene, rosin-based vegetable oil, methyl oleate and heavy aromatic solvent oil.

Specifically, the cosolvent in the pesticide composition is selected from one or more of cyclohexanone, N-dimethylacetamide and N, N-dimethylformamide.

Specifically, the antifreezing agent in the pesticide composition is selected from one or more of ethylene glycol, propylene glycol, isopropanol and urea.

Specifically, the film forming agent in the pesticide composition is one or more of polyvinyl alcohol, polyvinyl acetate, polyethylene glycol methacrylate, carboxymethyl cellulose, gum arabic, xanthan gum, starch and other high molecular polymers with adhesive property and film forming property.

Specifically, the capsule wall material used in the capsule forming agent in the pesticide composition is polyurea resin, and the polyurea resin is prepared by the interfacial polymerization reaction of isocyanate monomer and polyol or polyamine, wherein the isocyanate comprises toluene diisocyanate, 4-diphenylmethane diisocyanate, polyphenyl polymethylene polyisocyanate and polyphenyl polymethylene polyisocyanate.

Specifically, the pH acid-base regulator of the pesticide composition is selected from one or more of citric acid, glacial acetic acid, hydrochloric acid, ammonia water, biethanamine, biethanolamine and diethylenediamine; the amount required is that which is necessary to bring the pH of the final product into a stable range.

Specifically, the disintegrant in the pesticide composition is selected from one or more of sodium chloride, ammonium sulfate, sodium sulfate and soluble starch.

Specifically, the preservative in the pesticide composition is selected from one or more of cason, formaldehyde, phenyl salicylate, sodium benzoate, butyl p-hydroxybenzoate and potassium sorbate.

Specifically, the stabilizer in the pesticide composition is selected from one or more of epoxidized soybean oil, epichlorohydrin, diphenyl phosphite, glycidyl ether or pentaerythritol.

Specifically, the defoaming agent in the pesticide composition is selected from one or more of an organic silicon defoaming agent and a polyether defoaming agent.

Specifically, the colorant in the pesticide composition is selected from one or more of iron oxide, titanium oxide and azo dye.

Specifically, the filler in the pesticide composition is selected from one or more of kaolin, diatomite, talcum powder, light calcium carbonate and white carbon black.

Specifically, the water in the pesticide composition includes tap water, deionized water or distilled water.

The pesticide composition provided by the invention can be prepared into any agriculturally acceptable dosage forms according to actual needs and compound characteristics, including wettable powder, dry suspending agent, powder, granules, water dispersible granules, suspending agent, suspoemulsion, microcapsule suspending agent, microemulsion, emulsion in water, oil suspension, missible oil, effervescent tablets and other dosage forms.

The processing technology of various formulations prepared from the pesticide composition provided by the invention adopts a known method and equipment, and is a common means in the processing technology of pesticide preparations.

The composition of the invention can be provided in the form of a finished preparation, namely, all the substances in the composition are mixed and directly diluted to the required concentration when in use; the ingredients of the composition may also be provided in a single dose, directly mixed in a tub and tank in metered amounts before use, and then diluted to the desired concentration.

The invention also provides application of the pesticide composition containing the metamifop and the piperonyl butoxide, and the composition can be applied to the control of pests such as paddy fields, lawns and the like, preferably, the composition is applied to the control of barnyard grass, moleplant seeds and setose thistle in the paddy fields, the lawns and the like.

Preferably, in the application of the pesticide composition, the pests are barnyard grass, moleplant seed and thrips oryzae;

compared with the prior art, the pesticide composition provided by the invention has the following beneficial effects:

(1) compared with each single agent, the pesticide composition provided by the invention has obvious synergism on the effect of preventing and removing weeds in a rice field and a lawn, can reduce the dosage of metamifop used alone, reduces the dosage cost, reduces the selective pressure of the herbicide on the weeds, delays the generation of resistance, enlarges the application range and prolongs the service life of the product; meanwhile, the active ingredients of the pesticide composition provided by the invention are environment-friendly and high in safety, and the pressure on the environment can be reduced;

(2) compared with each single agent, the pesticide composition provided by the invention not only improves the control effect on weeds in the rice field, but also can control rice thrips occurring in the early stage of the rice field, expands the control spectrum, does not need to use an insecticide alone to control the rice thrips, reduces the total times of pesticide application, and lightens the environmental pressure;

(3) due to unexpected synergistic effect, the dosage of the metamifop is reduced, the pesticide composition provided by the invention can obviously improve the tolerance of crops, and the pesticide has higher safety to the crops;

(4) the pesticide composition provided by the invention has the advantages of low cost, convenience in use, time and labor saving, and great economic and social benefits when popularized and applied;

(5) the pesticide composition provided by the invention has excellent control effect on malignant weeds and resistant weeds, particularly resistant barnyard grass, which generate resistance in the long-term application process of the existing medicaments such as penoxsulam and quinclorac.

Detailed Description

In order to make the objects and advantages of the invention more concise, the invention will be described in more detail with reference to the following examples, to which it is in no way limited. It should be understood that any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Unless otherwise indicated, each component used herein is either commercially available or well known in the art or readily available to the skilled artisan from the disclosure of the prior art.

Formulations and preparation examples