阅读说明：本技术 一种农药组合物及其应用 (Pesticide composition and application thereof ) 是由 谭成侠 王剑 姚阳意 陈丽 于 2019-09-27 设计创作，主要内容包括：本发明公开了一种农药组合物及其应用,所述农药组合物含有两种活性成分,第一种活性成分为化合物A,第二种活性成分为化合物B,化合物A的化学结构式如式(A)所示,化合物B的化学结构式如式(B)所示：<Image he="239" wi="395" file="DEST_PATH_IMAGE001.GIF" imgContent="drawing" imgFormat="GIF" orientation="portrait" inline="no"></Image>；所述农药组合物中,化合物B与化合物A的重量配比为3~50:1~9。本发明的两种活性成分表现出极强的增效作用,两种活性成分混合后的组合物杀螨效果较其中一种活性成分有明显的提高,能够杀死卵、幼螨、若螨和成螨,具有持效期长的特点。(the invention discloses a pesticide composition and application thereof, wherein the pesticide composition contains two active ingredients, the first active ingredient is a compound A, the second active ingredient is a compound B, the chemical structural formula of the compound A is shown as a formula (A), and the chemical structural formula of the compound B is shown as a formula (B): in the pesticide composition, the weight ratio of the compound B to the compound A is 3 ~ 50:1 ~ 9, the two active ingredients have a strong synergistic effect, the acaricidal effect of the composition prepared by mixing the two active ingredients is obviously improved compared with that of one of the active ingredients, and the composition can kill eggs, young mites, nymph mites and adult mites and has the characteristic of long lasting period.)

1. A pesticide composition is characterized by comprising two active ingredients, wherein the first active ingredient is a compound A, the second active ingredient is a compound B, the chemical structural formula of the compound A is shown as a formula (A), and the chemical structural formula of the compound B is shown as a formula (B):

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in the pesticide composition, the weight ratio of the compound B to the compound A is 3 ~ 50:1 ~ 9.

2. the pesticide composition as claimed in claim 1, wherein the weight ratio of the compound B to the compound A in the pesticide composition is 5 ~ 20:1 ~ 5.

3. The pesticide composition as set forth in claim 1, wherein the pesticide composition is formulated as a suspension, a granule or a capsule; in the preparation of the pesticide composition, the total weight content of the compound A and the compound B is more than 10%.

4. Use of the pesticidal composition of claim 1 for controlling agricultural mites.

5. Use of the pesticidal composition of claim 1 for controlling agricultural pests.

Technical Field

the invention relates to an acaricidal pesticide composition and application thereof.

Background

The agricultural pest mites are small in size, rapid in propagation, strong in adaptability and easy to generate resistance, and are one of pests which are difficult to control. The pest mites are important organisms of fruit trees, vegetables and agricultural and forestry crops, and mainly harm leaves and tender tips, buds and fruits. After the number of insect population is increased sharply, the plant leaves are fallen, and the growth is inhibited or even died. The crops in the damaged area are often shorter, and the quality and the yield are obviously reduced.

The resistance is easy to develop rapidly after a single acaricide variety is used for a long time, so that the development of a novel acaricide composition has important significance for delaying the service life of the acaricide and slowing the development of the resistance of harmful mites to the single acaricide.

Disclosure of Invention

compared with the prior art, the invention aims to provide the pesticide composition and the application thereof, which can improve the control effect, reduce the agricultural cost and delay the generation of the drug resistance of pests.

The pesticide composition is characterized by comprising two active ingredients, wherein the first active ingredient is a compound A, the second active ingredient is a compound B, the chemical structural formula of the compound A is shown as the formula (A), and the chemical structural formula of the compound B is shown as the formula (B):

In the pesticide composition, the weight ratio of the compound B to the compound A is 3-50: 1.

The pesticide composition is characterized in that the weight ratio of the compound B to the compound A in the pesticide composition is 5-20: 1.

The pesticide composition is characterized in that the pesticide composition is prepared into a suspending agent, granules or capsules; in the preparation of the pesticide composition, the total weight content of the compound A and the compound B is more than 10%.

The pesticide composition is applied to preventing and controlling agricultural pest mites.

The pesticide composition is applied to control of agricultural pests.

The pesticide composition is characterized in that the preparation of the pesticide composition comprises the pesticide composition, a carrier and an auxiliary agent; the carrier is a solid carrier or a liquid carrier, and the auxiliary agent is at least one of a surfactant, a defoaming agent, a thickening agent, a suspending agent and an antifreezing agent;

The solid carrier is one of mineral substances, plant substances, synthetic fillers and inorganic salts; wherein the mineral material includes silicate mineral, carbonate mineral or oxide mineral. The silicate mineral is kaolin, sepiolite, nacrite, montmorillonite, mica, vermiculite, pyrophyllite or talc, and the carbonate mineral is calcium carbonate or dolomite. The oxide mineral is quicklime, magnesium lime or diatomite. The plant material is selected from Mandarin orange residue, corn cob core, testa oryzae, soybean straw powder, tobacco powder, and walnut shell or sawmilling powder. The synthetic filler is precipitated calcium carbonate hydrate, precipitated calcium carbonate or white carbon black. The inorganic salt is potassium chloride, sodium chloride, ammonium sulfate, sodium sulfate or calcium sulfate.

The liquid carrier is at least one of water and an organic solvent. When the pesticide composition is prepared into an aqueous emulsion or a suspoemulsion, the organic solvent plays roles of solubilization and freeze prevention. Suitable organic solvents include: aromatic hydrocarbons such as benzene, xylene, toluene, alkylbenzene, alkylnaphthalene or chlorinated aromatic hydrocarbons; chlorinated aliphatic hydrocarbons such as vinyl chloride, chloroform, dichloromethane, chloroform, carbon tetrachloride or polychlorinated ethane; aliphatic hydrocarbons such as petroleum fractions, cyclohexane, light mineral oil or paraffin; alcohols such as methanol, ethanol, isopropanol, butanol, isobutanol, ethylene glycol, propylene glycol, glycerol, or fatty alcohols, etc.; ethers such as methyl glycol ether, ethyl glycol ether or petroleum ether; ketones, such as acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, isophorone or N-methyl-pyrrolidone; specialty solvents, such as dimethylformamide, dimethyl sulfoxide, polyethylene glycol or hexanenitrile; vegetable oils and methylated vegetable oils. The organic solvents mentioned above may be used alone, or in admixture with water.

The auxiliary agent of the invention can comprise at least one selected from a surfactant, an antifoaming agent, a thickening agent, a suspending agent and an antifreezing agent according to requirements, and can also comprise other auxiliary agents commonly used in the industry according to requirements.

The surfactant may be an emulsifier, dispersant, stabilizer or wetting agent, and may also be ionic or non-ionic. Suitable surfactants include at least one of the following: polyacrylic acid, sodium salts, calcium salts of lignosulfonic acid, polycondensation products of fatty acids or fatty amines having at least 12 carbon atoms in the molecule with ethylene oxide and/or propylene oxide, alkali metal or alkaline earth metal salts of sulfuric acid or sulfonic acid having at least 10 carbon atoms in the molecule, preferably sodium salts, such as sodium lauryl sulfate, secondary alkyl sulfate, sodium salts of sulfonated castor oil, sodium alkylaryl sulfonate and sodium dodecylbenzenesulfonate; polymers of ethylene oxide, copolymers of ethylene oxide and propylene oxide.

Emulsifiers include nonionic emulsifiers and commercially available emulsifiers. The nonionic emulsifier is preferably a polyoxyethylene fatty acid ester, a polyoxyethylene fatty alcohol ether and a polyoxyethylene fatty amine, such as ethoxylated castor oil, polyoxyethylene (n20) phenethylphenol ether oleate, alkylaryl polyoxyethylene polyoxypropylene ether, alkylaryl formaldehyde resin polyoxyethylene ether, tristyrylphenol polyoxyethylene (n20), ether phosphorylated triethanolamine salt, diphenylethylphenol polyoxyethylene ether (n18) formaldehyde condensate, diphenylphenol polyoxyethylene (n18) polyoxypropylene ether (n20) and the like. Commercially available emulsifiers include: nongru 0201B, Nongru 0203B, Nongru 100#, Nongru 500#, Nongru 600-2#, Nongru 1601, Nongru 2201, Nongru NP-10, Nongru NP-15, Nongru 507#, Nongru OX-635, Nongru OX-622, Nongru OX-653, Nongru OX-667, Nongru CS-7, Ningru 36 #.

the dispersant of the invention comprises at least one of the following substances: sodium lignosulfonate, nekal, calcium lignosulfonate, methylnaphthalenesulfonic acid-formaldehyde condensate, naphthalenesulfonic acid-formaldehyde condensate, sodium methylenenaphthalenesulfonate, sodium methylaminoethyloleate, epoxy polyether, p-t-butyl ether, dibutylnaphthalenesulfonic acid-formaldehyde condensate, phosphates such as sodium hexametaphosphate, alkylphenol polyoxyethylene phosphate, alkylphenol polyoxyethylene ether-formaldehyde condensate sulfate, N-methyl-fatty acyl-sodium taurate alkylphenol polyoxyethylene ether-formaldehyde condensate, aralkylphenol polyoxyethylene ether phosphate alkylphenol polyoxyethylene ether, castor oil ethylene oxide adduct, ethylene oxide-propylene oxide block copolymer alkylphenol polyoxyethylene ether-formaldehyde condensate, alkylphenol polyoxyethylene polyoxypropylene ether, and methyl cellulose.

The humectant of the present invention comprises at least one of the following: sodium lauryl sulfate, sodium alkylol polyoxyethylene ether sulfate, octylphenol polyoxyethylene ether sulfate, alkylphenol polyoxyethylene ether formaldehyde condensate sulfate, sodium alkylsulfonate, sodium dodecylbenzenesulfonate, sodium alkylnaphthalenesulfonate, sulfosuccinic acid alkyl salt, sodium laurinol polyoxyethylene ether sulfonate, sodium alkylamido taurate, fatty alcohol polyoxyethylene ether, alkylphenol polyoxyethylene ether, polyoxyethylene polyoxypropylene block polymer, sorbitan fatty acid ester polyoxyethylene ether, and the like.

The thickening agent of the invention can be artificially synthesized, such as carboxymethyl alcohol, polyvinyl alcohol or polyvinyl acetate; natural water-soluble polymers such as xanthan gum, gelatin, gum arabic, polyvinylpyrrolidone, magnesium aluminum silicate, polyvinyl alcohol, polyethylene glycol, phenol resin, shellac, carboxymethyl cellulose, sodium alginate, and the like are also possible.

The defoaming agent of the present invention is preferably: the foaming agent comprises the components of natural products such as foam, silicones, C8-C10 fatty alcohol, C10-C20 saturated fatty acids, amides and the like.

the pesticide composition of the invention can be prepared into suspending agents, granules or capsules.

When the acaricide is a suspending agent, the acaricide comprises the following components in percentage by weight: the total weight content of the compound A and the compound B is 0.1-60%, the wetting agent is 1-5%, the dispersant is 1-8%, the thickening agent is 0.1-1%, the antifreezing agent is 2-5%, and the balance is water.

when the acaricide is a water dispersible granule, the acaricide comprises the following components in percentage by weight: 0.1-80 percent of the total weight of the compound A and the compound B, 0-2 percent of surfactant, 1-15 percent of wetting agent, 1-15 percent of dispersant, 1-10 percent of disintegrant, 0-5 percent of stabilizer and the balance of synthetic filler.

When the acaricide is a microcapsule suspending agent, the acaricide comprises the following components in percentage by weight: 0.1-40 percent of the total weight of the compound A and the compound B, 1-20 percent of emulsifier, 1-20 percent of solvent, 0-10 percent of thickening agent, 0-10 percent of antifreeze, 0-5 percent of stabilizer, 0-5 percent of defoaming agent, 1-10 percent of microcapsule carrier and the balance of water.

The composition containing the two active ingredients can be directly prepared into a finished product preparation form, namely, all substances in the composition are mixed and directly used for killing insects; the components of the composition may also be provided in separate formulations which are mixed directly in the tank (jar) prior to use. The concentrates of the invention are typically mixed with water to give the desired active concentration.

The invention also comprises the use of a composition according to the invention comprising two active ingredients for controlling agricultural and forestry pests. The composition containing the two active ingredients is suitable for preventing and controlling agricultural pest mites. Is particularly suitable for controlling various important agricultural pests such as tetranychus gossypii, tetranychus vegetable, tetranychus crataegi, panonychus citri, rust citrus mites, tetranychus malabaricus, tetranychus urticae koch, gall mites, aleyrodids and the like. Are also suitable for controlling harmful mites in crops such as: fruit trees such as apple, pear, citrus litchi, etc.; cereals such as wheat, rice, etc.; beans such as soybean, kidney bean, etc.; vegetables such as cabbage, cauliflower, Chinese cabbage, rape, tomato, pepper, etc.; flowers such as Chinese rose, etc.; cotton, tea plant.

The compositions or acaricides containing two active ingredients according to the invention can be applied in the usual way, such as by casting, spraying, misting. The application rate varies with the climatic conditions or the state of the crop, and the application time can be before or after the pest is endangered. The duration of the protective action is generally related to the content of the individual compounds in the composition and also to external factors, such as the climate, but the effects of the climate can be reduced by using suitable dosage forms.

The composition containing two active ingredients can also be mixed with other compounds with insecticidal, herbicidal and bactericidal properties, and can also be mixed with nematocides, protective agents, growth regulators, plant nutrients or soil conditioners.

Compared with the prior art, the composition containing two active ingredients provided by the invention has the following advantages:

(1) The two active ingredients of the composition have strong synergistic effect, the acaricidal effect of the composition prepared by mixing the two active ingredients is obviously improved compared with that of one of the active ingredients, and the composition can kill eggs, young mites, nymph mites and adult mites and has the characteristic of long lasting period;

(2) The dosage of the two active ingredients is reduced, and the medication cost of farmers is reduced;

(3) The two active ingredients are reasonably mixed by utilizing different action modes and different action mechanisms of the two active ingredients on pest mites, so that the service life of the pesticide is prolonged, and the generation of drug resistance of the pest mites is delayed.

Detailed Description

The present invention is further illustrated by the following examples, which should not be construed as limiting the scope of the invention.

Preparation of compositions and examples of biological Activity

1. Preparation of water dispersible granules

Mixing and crushing the original medicine, the powdery carrier, the wetting and spreading agent, the binder and the like, adding water, kneading, and adding into a granulator with a screen of a certain specification for granulation. Then drying and screening (according to the range of a screen) to obtain a granular product.