Insecticide composition and insecticide preparation as well as preparation and application thereof

Abstract

The invention provides an insecticide composition, an insecticide preparation and preparation and application of the insecticide composition and the insecticide preparation, and relates to the technical field of pesticides. The pesticide composition provided by the invention comprises a component A and a component B, the component A is (1S, 2R, 4S)-1, 3, 3-trimethyl bicyclo [2.2. 1] heptane-2-yl-4-(tert-butyl) benzoate, the component B is chlorantraniliprole, tetrachlorantraniliprole or emamectin benzoate, and the mass ratio of the component A to the component B is 1: (0.25-4). The insecticide composition provided by the invention has relatively high toxicity to lepidoptera pests such as cotton bollworms, plutella xylostella and corn borers, has a remarkable synergistic effect, can remarkably reduce the dosage of chlorantraniliprole, tetrachlorantraniliprole and emamectin benzoate, realizes application reduction and synergy of pesticides, and delays the development of pest resistance to drugs; and all the components are low-toxicity and low-residue compounds and are easy to degrade in the environment.

Description

Technical Field

[0001] The present invention relates to the technical field of pesticides, and in particular to an insecticide composition and an insecticide preparation as well as preparation and application thereof. Background Art

[0002] As people's awareness of environmental protection and sustainable social development increases, it has become a consensus around the world to minimize the side effects of pesticides and develop biologically rational pesticides. Botanical pesticides have the advantages of low toxicity, low residue, basically harmless to non-target organisms, and no pollution to the environment. The development and application of botanical pesticides has gradually become a trend. Moreover, as the public's demand for green food and pollution-free food increases, the market demand for botanical pesticides is also increasing day by day. The development of botanical pesticides has become an inevitable trend in social and scientific development.

[0003] (1S,2R,4S)-1,3,3-trimethylbicyclo[2.2.1]heptane-2-yl 4-(tert-butyl)benzoate is a new type of terpene ester insect growth regulator, which can effectively regulate the growth and development of lepidopteran pests such as cotton bollworm, leading to symptoms such as larval molting obstruction, formation of deformed pupae, and death after pupation, thereby achieving green pest control, with low toxicity, low pollution, little impact on natural enemies and beneficial organisms, and safety for higher animals. (1S,2R,4S)-1,3,3-trimethylbicyclo[2.2.1]heptane-2-yl-4-(tert-butyl)benzoate has a good control effect on lepidopteran insects such as cotton bollworm and diamondback moth when used alone, but compared with commercially available fast-acting insecticides, the effect needs to be improved. Summary of the invention

[0004] In view of this, the object of the present invention is to provide an insecticide composition and an insecticide preparation and their preparation and use. The insecticide composition provided by the present invention can effectively control lepidopteran pests such as cotton bollworm, diamondback moth, corn borer, etc., showing a synergistic effect.

[0005] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0006] The invention provides an insecticide composition, comprising a component A and a component B, wherein the component A is (1S, 2R, 4S)-1, 3, 3-trimethylbicyclo [2.2.1] heptane-2-yl-4-(tert-butyl) benzoate, the component B is chlorantraniliprole, tetrachlorantraniliprole or avermectin benzoate, and the mass ratio of the component A to the component B is 1: (0.25-4).

[0007] Preferably, when the component B is chlorantraniliprole, the mass ratio of the component A to the component B is 1:2 or 1:4.

[0008] Preferably, when the component B is tetrachlorvinphos, the mass ratio of the component A to the component B is 2:1, 1:3 or 1:4.

[0009] Preferably, when the component B is avermectin benzoate, the mass ratio of the component A to the component B is 2:1, 1:3 or 1:4.

[0010] The present invention provides an insecticide preparation, including a suspension or an aqueous emulsion. When the insecticide preparation is a suspension, it includes the following components in percentage by weight: 9-45% of an active ingredient, 2-30% of a first dispersant, 0.5-20% of a first thickener, 0.01-20% of a first stabilizer, 1-5% of a first defoamer, 1-5% of a penetrant, 0.1-15% of an antifreeze agent, and the balance of water;

[0011] When the insecticide preparation is an aqueous emulsion, it includes the following components in percentage by weight: 6-12% of active ingredient, 10-15% of organic solvent, 4-8% of emulsifier, 1-3% of surfactant, 5-10% of bentonite, 3-6% of second dispersant, 1-3% of second thickener, 1-3% of second stabilizer, 0.6-1% of palm oil methyl octanoate, 0.3-0.7% of second defoamer, 5-10% of coating material, and the balance of water;

[0012] The active ingredients in the suspension and the aqueous emulsion are the insecticide composition described in the above technical solution.

[0013] Preferably, when the insecticide preparation is a suspension concentrate, component B in the active ingredient is chlorantraniliprole or tetrachlorantraniliprole; when the insecticide preparation is an emulsion in water, component B in the active ingredient is emamectin benzoate.

[0014] Preferably, the coating material comprises methyl methacrylate, attapulgite, N,N-methylenebisacrylamide and polyethylene glycol ether, and the mass ratio of methyl methacrylate, attapulgite, N,N-methylenebisacrylamide and polyethylene glycol ether is (8-10):(5-6):(2-3):1.

[0015] The present invention provides a method for preparing the insecticide preparation described in the above technical solution. When the insecticide preparation is a suspension concentrate, the method comprises the following steps:

[0016] The active ingredient, the first dispersant, the first thickener, the first stabilizer, the first defoamer, the penetrant, the antifreeze agent and water are mixed and ball-milled to obtain the suspension;

[0017] When the pesticide preparation is an aqueous emulsion, the method comprises the following steps:

[0018] The coating material is heated to 85-95° C. to obtain a coating solution;

[0019] Preheating the active ingredient to 85-95° C., spraying the coating liquid on the surface of the preheated active ingredient to coat the active ingredient, thereby obtaining a coated agent;

[0020] The coating agent, the organic solvent, the second dispersant and the surfactant are mixed to obtain an oil phase;

[0021] The emulsifier, the second thickener, the second stabilizer, the second defoamer and water are mixed at 40-50° C. to obtain an aqueous phase;

[0022] The oil phase is added to the water phase, and the obtained mixture is mixed with bentonite and palm oil methyl octanoate and subjected to ultrasonic emulsification treatment to obtain the aqueous emulsion.

[0023] The present invention provides the use of the insecticide composition described in the above technical solution or the insecticide preparation described in the above technical solution in the control of lepidopteran pests.

[0024] Preferably, the lepidopteran pests include cotton bollworm, diamondback moth or corn borer.

[0025] The present invention provides an insecticide composition, comprising component A and component B, wherein component A is (1S, 2R, 4S)-1,3,3-trimethylbicyclo[2.2.1]heptane-2-yl-4-(tert-butyl)benzoate, and component B is chlorantraniliprole, tetrachlorantraniliprole or emamectin benzoate, and the mass ratio of component A to component B is 1:(0.25-4). In the present invention, the (1S, 2R, 4S)-1,3,3-trimethylbicyclo[2.2.1]heptane-2-yl-4-(tert-butyl)benzoate is compounded with chlorantraniliprole, tetrachlorantraniliprole or emamectin benzoate, and has a significant synergistic effect on lepidopteran pests. The insecticide composition provided by the present invention has high toxicity to lepidopteran pests such as cotton bollworm, diamondback moth and corn borer, and can significantly reduce the dosage of chlorantraniliprole, tetrachlorantraniliprole and emamectin benzoate, thereby achieving reduced application and increased efficacy of pesticides and delaying the development of pest resistance; and the components in the insecticide composition are all low-toxic and low-residue compounds, which are easily degraded in the environment and will not cause pollution to the environment.

[0026] The present invention provides an insecticide preparation, wherein the preparation form of the suspension or aqueous emulsion can improve the deposition, diffusion and penetration performance of (1S, 2R, 4S)-1, 3, 3-trimethylbicyclo [2.2.1] heptane-2-yl-4-(tert-butyl) benzoate on the leaf surface, thereby further improving the efficacy. DETAILED DESCRIPTION

[0027] The invention provides an insecticide composition, comprising a component A and a component B, wherein the component A is (1S, 2R, 4S)-1, 3, 3-trimethylbicyclo [2.2.1] heptane-2-yl-4-(tert-butyl) benzoate, the component B is chlorantraniliprole, tetrachlorantraniliprole or avermectin benzoate, and the mass ratio of the component A to the component B is 1: (0.25-4).

[0028] The insecticide composition provided by the present invention comprises component A, and the component A is (1S, 2R, 4S)-1,3,3-trimethylbicyclo[2.2.1]heptane-2-yl-4-(tert-butyl)benzoate. The present invention has no special requirements on the source of the component A, and it is prepared by using commercially available products or by a preparation method well known to those skilled in the art. In the present invention, the (1S, 2R, 4S)-1,3,3-trimethylbicyclo[2.2.1]heptane-2-yl-4-(tert-butyl)benzoate has good biological activity, good control effect on lepidopteran pests (such as corn armyworm, striped stem borer, crucifer vegetable diamondback moth, sunflower bollworm, etc.), can delay the resistance of lepidopteran pests to other insecticides, and has the characteristics of high stability, long-term effect and low toxicity, can reduce the amount of medicine used, reduce environmental pollution and agricultural product residues, and meet the requirements of green pesticides. In the present invention, the structural formula of the (1S, 2R, 4S)-1,3,3-trimethylbicyclo[2.2.1]heptane-2-yl-4-(tert-butyl)benzoate is as follows:

[0029]

[0030] The insecticide composition provided by the present invention includes component B, and the component B is chlorantraniliprole, tetrachlorantraniliprole or emamectin benzoate. The present invention has no special requirements for the component B, and commercially available products well known to those skilled in the art can be used. In the present invention, the mass ratio of the component A to the component B is 1: (0.25-4), and can be specifically 4: 1, 3: 1, 2: 1, 1: 1, 1: 2, 1: 3, 1: 4. In the present invention, when the component B is chlorantraniliprole, the mass ratio of the component A to the component B is further preferably 1: 2 or 1: 4; when the component B is tetrachlorantraniliprole, the mass ratio of the component A to the component B is further preferably 2: 1, 1: 3 or 1: 4; when the component B is emamectin benzoate, the mass ratio of the component A to the component B is further preferably 2: 1, 1: 3 or 1: 4.

[0031] Chlorantraniliprole can effectively activate insect nicotinic acid (muscle) receptors, excessively release calcium ions in intracellular calcium stores, and cause insect paralysis and death. It has high activity against larvae of lepidopteran pests, a broad insecticide spectrum, and good lasting effect. The pesticide is slightly toxic, very safe for applicators, and also very safe for beneficial insects, fish and shrimp. The lasting effect can reach more than 15 days, and there is no residual effect on agricultural products. Chlorantraniliprole is a diformamide insecticide containing pyridylpyrazole independently developed in my country. It belongs to the o-formamidobenzamide nicotinic acid receptor modulator, which has preventive effect on a variety of pests, has super high activity against lepidoptera, good rapid effect, long lasting effect, and low toxicity to mammals. It can be widely used in crops such as rice, corn, vegetables and fruit trees. Emamectin benzoate is a low-toxic insecticide and acaricide of microbial origin, with the characteristics of high activity, broad insecticide spectrum, good compatibility, long lasting effect, and safe use. Its mode of action is mainly stomach poison, and it also has contact killing effect. Its insecticidal mechanism is to hinder the motor nerves of pests. It has extremely high activity against lepidopteran pests such as cotton bollworm, mites, coleoptera and homoptera pests, and it is not easy for pests to develop drug resistance, and it is safe for humans and animals.

[0032] (1S,2R,4S)-1,3,3-trimethylbicyclo[2.2.1]heptane-2-yl-4-(tert-butyl)benzoate is a new type of insecticide with insect growth regulating activity. When used alone, it has good control effects on lepidopteran insects such as cotton bollworm and diamondback moth, but there are still some differences compared with commercially available fast-acting insecticides. In order to further improve the application effect of (1S,2R,4S)-1,3,3-trimethylbicyclo[2.2.1]heptane-2-yl-4-(tert-butyl)benzoate in agricultural and forestry pest control, the inventors of the present invention combined the compound with commercial insecticides and explored the insecticide composition through in-depth research. In the insecticide composition, (1S,2R,4S)-1,3,3-trimethylbicyclo[2.2.1]heptane-2-yl-4-(tert-butyl)benzoate is compounded with chlorantraniliprole, tetrachlorantraniliprole or avermectin benzoate, which has a significant synergistic effect on lepidopteran pests.

[0033] The present invention has no special requirements on the preparation method of the insecticide composition, and the component A and the component B can be mixed.

[0034] The present invention provides an insecticide preparation, including a suspension or an aqueous emulsion. In the present invention, each component in the suspension and the aqueous emulsion is a commercially available product well known to those skilled in the art.

[0035] In the present invention, when the insecticide preparation is a suspension, it includes the following components in percentage by mass: 9-45% of active ingredient, 2-30% of a first dispersant, 0.5-20% of a first thickener, 0.01-20% of a first stabilizer, 1-5% of a first defoamer, 1-5% of a penetrant, 0.1-15% of an antifreeze agent, and the remainder of water; the sum of the percentage by mass of each component is 100%.

[0036] The mass percentage of the active ingredient in the suspension of the present invention is 9-45%, preferably 10-20%, more preferably 12-15%. In the present invention, the active ingredient is the insecticide composition described in the above technical solution, and component B in the active ingredient is preferably chlorantraniliprole or tetrachlorantraniliprole.

[0037] The mass percentage of the first dispersant in the suspension of the present invention is 2-30%, preferably 10-20%. In the present invention, the first dispersant is preferably one or more of sodium lignin sulfonate, sodium lignin iodate, sodium lauryl alcohol polyoxyethylene ether sulfate, sodium alkylnaphthalene formaldehyde condensate sulfonate, sodium dodecylbenzene sulfonate, sodium dodecyl sulfate, potassium oleate, sodium oleate, alkyl polyoxyethylene ether sulfonate, alkylphenol polyoxyethylene ether formaldehyde condensate, alkylphenol polyoxyethylene ether, polyoxyethylene polyoxypropylene ether block copolymer, pull-open powder, sodium salt of polyoxyethylene ester and dodecyl polyoxyethylene ether phosphate; when the first dispersant is a mixture of several, the present invention has no special requirements for the mixing ratio, and it can be mixed in any proportion. In an embodiment of the present invention, the first dispersant is preferably sodium lignin sulfonate.

[0038] The mass percentage of the first thickener in the suspending agent of the present invention is 0.5-20%, preferably 1-10%. In the present invention, the first thickener is preferably one or more of xanthan gum, hydroxymethyl cellulose, hydroxyethyl cellulose, methyl cellulose and polyvinyl alcohol; when the first thickener is preferably a mixture of several, the present invention has no special requirements on the mixing ratio, and any ratio can be mixed. In an embodiment of the present invention, the first thickener is preferably xanthan gum.

[0039] The mass percentage of the first stabilizer in the suspending agent of the present invention is 0.01-20%, preferably 2-10%. In the present invention, the first stabilizer is preferably one or more of catechol, butyl glycidyl ether, phenyl glycidyl ether, cresyl glycidyl ether, polyethylene glycol diglycidyl ether, epichlorohydrin, sodium sorbate, sodium benzoate, epoxidized soybean oil, linseed oil, anthraquinone, eugenol, citric acid, hydroxybenzoate and propyl paraben; when the first stabilizer is preferably a mixture of several, the present invention has no special requirements for the mixing ratio, and any ratio can be mixed. In an embodiment of the present invention, the first stabilizer is preferably catechol.

[0040] The mass percentage of the first defoamer in the suspension of the present invention is 1-5%, preferably 1-3%. In the present invention, the first defoamer is preferably one or more of silicone oil, silicone compounds, C10-C20 saturated fatty acid compounds, C8-C10 fatty alcohol compounds and 2-ethylhexanol; when the first defoamer is a mixture of several, the present invention has no special requirements for the mixing ratio, and it can be mixed in any proportion. In the present invention, the silicone compound is preferably organosilicon, such as trisiloxane and tetrasiloxane; the C10-C20 saturated fatty acid compound is preferably one or more of undecanoic acid, tridecanoic acid and pentadecanoic acid; the C8-C10 fatty alcohol compound is preferably decanol. In an embodiment of the present invention, the first defoamer is preferably silicone oil.

[0041] The mass percentage of the penetrant in the suspension of the present invention is 1-5%, preferably 1-2%. In the present invention, the penetrant is preferably an organosiloxane, and the organosiloxane is preferably a polysiloxane, including trisiloxane and / or tetrasiloxane.

[0042] The mass percentage of the antifreeze in the suspension of the present invention is 0.1-15%, preferably 5-12%. In the present invention, the antifreeze is preferably one or more of ethylene glycol, glycerol, propylene glycol, polyethylene glycol, sorbitol and urea, more preferably ethylene glycol.

[0043] The present invention has no special requirements for the water in the suspending agent, and water well known to those skilled in the art can be used.

[0044] In the present invention, the pH value of the suspending agent is preferably 5-9, more preferably 7.

[0045] In the present invention, when the insecticide preparation is an aqueous emulsion, it includes the following components in percentage by weight: 6-12% of active ingredient, 10-15% of organic solvent, 4-8% of emulsifier, 1-3% of surfactant, 5-10% of bentonite, 3-6% of second dispersant, 1-3% of second thickener, 1-3% of second stabilizer, 0.6-1% of palm oil methyl octanoate, 0.3-0.7% of second defoamer, 5-10% of coating material, and the remainder of water; the sum of the percentage by weight of each component is 100%.

[0046] The mass percentage of the active ingredient in the aqueous emulsion of the present invention is 6-12%, preferably 8-9%. In the present invention, the active ingredient is the insecticide composition described in the above technical solution, and component B in the active ingredient is preferably emamectin benzoate.

[0047] The mass percentage of the organic solvent in the aqueous emulsion of the present invention is 10-15%, preferably 10-13%. In the present invention, the organic solvent is preferably one or more of toluene, xylene and cyclohexanone, more preferably cyclohexanone.

[0048] The mass percentage of the emulsifier in the aqueous emulsion of the present invention is 4-8%, preferably 4-6%. In the present invention, the emulsifier is preferably one or more of sorbitan laurate, polyoxyethylene lauryl ether, polyoxypropylene lanolin ether, polyoxyethylene monopalmitate, polyoxyethylene sorbitan lanolin, polyoxyethylene monostearate and polyoxyethylene castor oil, more preferably polyoxyethylene castor oil.

[0049] The mass percentage of the surfactant in the aqueous emulsion of the present invention is 1-3%, preferably 1-2%. In the present invention, the surfactant preferably includes anionic surfactant and nonionic surfactant, and the mass ratio of the anionic surfactant to the nonionic surfactant is preferably (65-72):(28-35), more preferably 65:35; the anionic surfactant is preferably one or more of α-olefin sulfonate, lignin sulfonate and tristyrylphenol polyoxyethylene ether phosphate, more preferably α-olefin sulfonate or tristyrylphenol polyoxyethylene ether phosphate; the nonionic surfactant is preferably one or more of polysorbate-80, alkyl glycoside, vinyl pyrrolidone and polyvinyl acetate, more preferably polyvinyl acetate.

[0050] The mass percentage of bentonite in the aqueous emulsion of the present invention is 5-10%, preferably 5-7.5%. In the present invention, the model of the bentonite is preferably TY-260.

[0051] The mass percentage of the second dispersant in the aqueous emulsion of the present invention is 3-6%, preferably 3-5%. In the present invention, the second dispersant is preferably one or more of aromatic sulfonates, acrylic acid-acrylate copolymers, cresol-formaldehyde condensate sulfonates, sodium salts of C4-C11 olefins and maleic anhydride copolymers, sodium salts of maleic anhydride-isobutylene copolymers, sodium salts of styrene-succinic anhydride copolymers, sodium salts of polymerized carboxylic acids, and alkyl pyrrolidone, and more preferably sodium salts of styrene-succinic anhydride copolymers or sodium salts of maleic anhydride-isobutylene copolymers.

[0052] The mass percentage of the second thickener in the aqueous emulsion of the present invention is 1-3%, preferably 1-2%. In the present invention, the second thickener is preferably one or more of hydroxymethyl cellulose, hydroxyethyl cellulose and hydroxypropyl cellulose, more preferably hydroxymethyl cellulose.

[0053] The mass percentage of the second stabilizer in the aqueous emulsion of the present invention is 1 to 3%, preferably 1 to 2%. In the present invention, the second stabilizer is preferably one or more of 2,6-tert-butyl-p-cresol, tert-butyl-4-hydroxyanisole and tert-butylhydroquinone, more preferably tert-butylhydroquinone.

[0054] The mass percentage of palm oil methyl octanoate in the aqueous emulsion of the present invention is 0.6-1%, preferably 0.6-0.8%. In the present invention, the palm oil methyl octanoate plays a synergistic role to improve the control effect of the active ingredient.

[0055] The mass percentage of the second defoamer in the aqueous emulsion of the present invention is 0.3-0.7%, preferably 0.4-0.5%. In the present invention, the second defoamer is preferably polyalkylsiloxane and / or tributyl phosphate.

[0056] The mass percentage of the coating material in the aqueous emulsion of the present invention is 5-10%, preferably 5-8%. In the present invention, the coating material preferably includes methyl methacrylate, attapulgite, N,N-methylenebisacrylamide and polyethylene glycol ether, and the mass ratio of methyl methacrylate, attapulgite, N,N-methylenebisacrylamide and polyethylene glycol ether is preferably (8-10):(5-6):(2-3):1, more preferably 10:6:2:1. In the present invention, the coating material is used to coat the active ingredient.

[0057] The present invention has no special requirements for the water in the aqueous emulsion, and water familiar to those skilled in the art can be used.

[0058] In the present invention, the suspension and aqueous emulsion formulations can improve the deposition, diffusion and penetration properties of (1S, 2R, 4S)-1, 3, 3-trimethylbicyclo [2.2.1] heptane-2-yl-4-(tert-butyl) benzoate and avermectin benzoate on the leaf surface, thereby further improving the efficacy.

[0059] The present invention provides a method for preparing the insecticide preparation described in the above technical solution. When the insecticide preparation is a suspension concentrate, the method comprises the following steps:

[0060] The active ingredient, the first dispersant, the first thickener, the first stabilizer, the first defoamer, the penetrant, the antifreeze agent and water are mixed and ball-milled to obtain the suspension.

[0061] The present invention has no special requirements for the mixing method, and a mixing method well known to those skilled in the art can be used. In the present invention, in order to ensure that the pH value of the suspending agent is 5 to 9, after the mixing, it is also preferred to measure the pH value of the obtained mixture; when the pH value of the mixture is not within the range of 5 to 9, it is also preferred to add a pH regulator to the mixture to adjust the pH value; the pH regulator is preferably one or more of sodium hydroxide, ammonia, acetic acid, citric acid and phosphoric acid. The present invention has no special requirements for the equipment for the ball milling, and a ball mill well known to those skilled in the art can be used; the ball milling time is preferably 2 to 3 hours, and the particle size of the suspending agent is preferably less than 5μm.

[0062] When the insecticide preparation is an aqueous emulsion, the preparation method comprises the following steps:

[0063] The coating material is heated to 85-95° C. to obtain a coating solution;

[0064] Preheating the active ingredient to 85-95° C., spraying the coating liquid on the surface of the preheated active ingredient to coat the active ingredient, thereby obtaining a coated agent;

[0065] The coating agent, the organic solvent, the second dispersant and the surfactant are mixed to obtain an oil phase;

[0066] The emulsifier, the second thickener, the second stabilizer, the second defoamer and water are mixed at 40-50° C. to obtain an aqueous phase;

[0067] The oil phase is added to the water phase, and the obtained mixture is mixed with bentonite and palm oil methyl octanoate and subjected to ultrasonic emulsification treatment to obtain the aqueous emulsion.

[0068] The present invention preferably adds the various components of the coating material into a sealed reactor for heating; the heating temperature is preferably 90° C. After the heating, the present invention also preferably disperses the heated material to obtain a coating solution; the speed of the dispersion treatment is preferably 400 to 450 r / min, and the time is preferably 10 to 14 min.

[0069] In the present invention, the preheating is preferably performed in a coating device, and the preheating temperature is preferably 90° C. The present invention has no special requirements for the spraying method, and a spraying method well known to those skilled in the art can be used. After the spraying, the present invention also preferably dries the obtained material to obtain a coated pharmaceutical; the present invention has no special requirements for the drying conditions, and conventional conditions well known to those skilled in the art can be used.

[0070] In the present invention, the method of mixing the coating agent, organic solvent, second dispersant and surfactant is preferably: adding the organic solvent and second dispersant to a dispersion kettle for first mixing and dispersing to obtain a first dispersion; then adding the coating agent and surfactant to the first dispersion for second mixing and dispersing to obtain an oil phase. In the present invention, the rotation speed of the first mixing and dispersing and the second mixing and dispersing is preferably 450-550 r / min; the present invention has no special requirements for the time of the first mixing and dispersing and the second mixing and dispersing, as long as the components can be mixed evenly.

[0071] In the present invention, the temperature for mixing the emulsifier, the second thickener, the second stabilizer, the second defoamer and water is preferably 45° C.; and the mixing time is preferably 6 to 8 minutes.

[0072] The present invention has no particular requirements for the specific operation method of the ultrasonic emulsification treatment, and a method well known to those skilled in the art can be used. In the present invention, the time of the ultrasonic emulsification treatment is preferably 18 to 22 minutes.

[0073] The preparation method of the insecticide preparation provided by the invention has simple process, low production cost and is easy to realize large-scale production.

[0074] The present invention provides the application of the insecticide composition described in the above technical solution or the insecticide preparation described in the above technical solution in the control of lepidopteran pests. In the present invention, the lepidopteran pests preferably include cotton bollworm (Helicoverpa armigera), diamondback moth (Plutella xylostella) or corn borer (Pyraustanubilalis), and the crops involved include cotton, pepper, etc. The present invention has no special requirements for the method of application, and the application method familiar to those skilled in the art can be adopted. The insecticide composition or insecticide preparation provided by the present invention has high toxicity to lepidopteran pests such as cotton bollworm, diamondback moth and corn borer, has a significant synergistic effect, can significantly reduce the dosage of chlorantraniliprole, tetrachlorantraniliprole and avermectin benzoate, realize the reduction of pesticide application and increase of efficiency, and delay the development of pest resistance; and the components involved are all low-toxic and low-residue compounds, which are easy to degrade in the environment and will not cause pollution to the environment

[0075] In order to further illustrate the present invention, the insecticide composition and insecticide formulation provided by the present invention and their preparation and application are described in detail below in conjunction with examples, but they should not be construed as limiting the scope of protection of the present invention.

[0076] Example 1

[0077] This example provides a pesticide composition and its combined toxicity test against cotton bollworm larvae

[0078] Accurately weigh each original drug, component A is (1S, 2R, 4S)-1, 3, 3-trimethylbicyclo [2.2.1] heptane-2-yl-4-(tert-butyl) benzoate, component B is chlorantraniliprole, tetrachlorantraniliprole or avermectin benzoate, and the mass ratios between the components are shown in Table 1. Dissolve them in an appropriate amount of DMF to prepare a 10000 mg / L mother solution, dilute each original drug mother solution to the required concentration with 0.01% TritonX-100 solution, and use 0.01% TritonX-100 solution as a solvent control. The toxicity of each insecticide to the second-instar larvae of cotton bollworm was determined by the insect immersion method. The second-instar larvae of cotton bollworm were immersed in the liquid for 10 seconds and taken out, and the liquid on the surface of the test insects was dried with absorbent paper, and then transferred to the insect incubator. Each concentration was repeated 3 times, and each repeat was 30 test insects. The test insects were all raised individually. Rearing conditions: temperature 26±1℃, relative humidity 70±10%, photoperiod 14L:10D (i.e. 14 hours of light, 10 hours of darkness). After 48 hours, calculate the mortality rate and adjusted mortality rate according to formulas (1) and (2). If the mortality rate of the control group is between 5% and 20%, the adjusted mortality rate must be calculated; if the mortality rate of the control group is below 5%, it is expressed as the mortality rate; if the mortality rate of the control group is above 20%, the experiment fails. Calculate the median lethal concentration (LC50) of each agent for cotton bollworm larvae based on the mortality rate of cotton bollworm larvae and the concentration of the agent. 50 ).

[0079] Mortality rate (%) = (number of dead insects / total number of insects treated) × 100 (1)

[0080] Corrected mortality rate (%) = ((treatment mortality rate - blank control mortality rate) / (1 - blank control mortality rate)) × 100 (2)

[0081] The toxicity of the insecticide compositions with different ratios to cotton bollworm larvae for 48 hours is shown in Table 1.

[0082] Table 1 Toxicity of different insecticide combinations to cotton bollworm larvae (48 hours)

[0083]

[0084]

[0085] As shown in Table 1, the insecticide composition with the highest mortality rate on cotton bollworm larvae within 48 hours was selected for precise toxicity determination. The median lethal concentration of each active ingredient single agent and combination on cotton bollworm larvae is shown in Table 2.

[0086] Table 2 LC of each agent alone and in combination against cotton bollworm larvae 50 (48 hours)

[0087]

[0088] As can be seen from Table 2, the toxicity of each active ingredient to cotton bollworm larvae is relatively high. The LC value of active ingredient A to cotton bollworm larvae is 50 The LC value of chlorantraniliprole to cotton bollworm larvae is 543.119 mg / L. 50 The LC value of tetrachlorantraniliprole to cotton bollworm larvae is 24.393 mg / L. 50 The LC value of avermectin benzoate against cotton bollworm larvae is 2.834 mg / L. 50 It is 0.224mg / L.

[0089] LC with component A: chlorantraniliprole mass ratio of 1:2 (recorded as formula 1) 50 The LC of component A: chlorantraniliprole mass ratio 2:1 (recorded as formula 2) was 12.226 mg / L, which was 44.4 times lower than that of component A alone and 2 times lower than that of chlorantraniliprole alone. 50 The LC of component A: avermectin benzoate mass ratio 2:1 (recorded as formula 3) was 0.542 mg / L, which was 1002 times lower than that of component A alone and 5.2 times lower than that of tetrachlorantraniliprole alone. 50 It is 0.032 mg / L, which is 16972 times lower than a single dose of component A and 7 times lower than a single dose of avermectin benzoate.

[0090] Example 2

[0091] This example provides a pesticide composition and its combined toxicity test against Plutella xylostella larvae

[0092] Accurately weigh each original drug, component A is (1S, 2R, 4S)-1, 3, 3-trimethylbicyclo [2.2.1] heptane-2-yl-4-(tert-butyl) benzoate, component B is chlorantraniliprole, tetrachlorantraniliprole or avermectin benzoate, and the mass ratio between the components is shown in Table 3. Dissolve them in an appropriate amount of DMF to prepare a 10000 mg / L mother solution, dilute each original drug mother solution to the required concentration with 0.01% TritonX-100 solution, and use 0.01% TritonX-100 solution as solvent control. The toxicity of each insecticide to the second-instar larvae of diamondback moth was determined by the insect immersion method. The second-instar larvae of diamondback moth were immersed in the liquid for 5s and taken out, and the liquid on the surface of the test insects was dried with absorbent paper, and then transferred to the insect incubator, with 3 replicates for each concentration and 30 test insects for each replicate. Rearing conditions: temperature 26±1°C, relative humidity 70±10%, photoperiod 14L:10D. After 48 hours, calculate the mortality rate and adjusted mortality rate according to formula (1) and (2) (see Example 1). If the mortality rate of the control group is between 5% and 20%, the adjusted mortality rate must be calculated; if the mortality rate of the control group is below 5%, it is expressed as the mortality rate; if the mortality rate of the control group is above 20%, the experiment fails. Calculate the median lethal concentration (LC50) of each agent for the diamondback moth larvae based on the mortality rate of the diamondback moth larvae and the concentration of the agent. 50 ).

[0093] The toxicity of the insecticide compositions with different ratios to the larvae of Plutella xylostella for 48 hours is shown in Table 3.

[0094] Table 3 Toxicity of different ratios of insecticide compositions to diamondback moth larvae (48 hours)

[0095]

[0096]

[0097] As shown in Table 3, the insecticide composition with the highest mortality rate on Plutella xylostella larvae within 48 hours was selected for precise toxicity determination. The median lethal concentration of each active ingredient single agent and combination on cotton bollworm larvae is shown in Table 4.

[0098] Table 4 LC of each agent alone and in combination against Plutella xylostella larvae 50 (48 hours)

[0099]

[0100] As can be seen from Table 4, the toxicity of each active ingredient to the larvae of Plutella xylostella is relatively high, and the LC value of active ingredient A to the larvae of cotton bollworm is 50 The LC value of chlorantraniliprole to cotton bollworm larvae is 730.259 mg / L. 50 The LC value of tetrachlorantraniliprole to cotton bollworm larvae is 17.148 mg / L. 50The LC value of avermectin benzoate against cotton bollworm larvae is 11.833 mg / L. 50 It is 1.127mg / L.

[0101] LC of component A: chlorantraniliprole mass ratio 1:4 (recorded as formula 4) 50 The LC of component A: chlorantraniliprole mass ratio 1:4 (recorded as formula 5) was 7.804 mg / L, which was 93.6 times lower than that of component A alone and 2.2 times lower than that of chlorantraniliprole alone. 50 The LC of component A: emamectin benzoate mass ratio 1:3 (recorded as formula 6) was 10.911 mg / L, which was 66.9 times lower than that of component A alone and 1.1 times lower than that of tetrachlorantraniliprole alone. 50 It is 0.987 mg / L, which is 739.9 times lower than that of a single dose of component A and 1.1 times lower than that of a single dose of avermectin benzoate.

[0102] Example 3

[0103] This example provides a pesticide composition and its combined toxicity test against corn borer larvae

[0104] Accurately weigh each original drug, component A is (1S, 2R, 4S)-1, 3, 3-trimethylbicyclo [2.2.1] heptane-2-yl-4-(tert-butyl) benzoate, component B is chlorantraniliprole, tetrachlorantraniliprole or avermectin benzoate, and the mass ratio between the components is shown in Table 5. Dissolve them in an appropriate amount of DMF to prepare a 10000 mg / L mother solution, dilute each original drug mother solution to the required concentration with 0.01% Triton X-100 solution, and use 0.01% Triton X-100 solution as solvent control. The toxicity of each insecticide to the second-instar larvae of corn borer was determined by the insect immersion method. The second-instar larvae of corn borer were immersed in the liquid for 5s and taken out, and the liquid on the surface of the test insects was dried with absorbent paper, and then transferred to the insect incubator, with 3 replicates for each concentration and 30 test insects for each replicate. Rearing conditions: temperature 26±1°C, relative humidity 70±10%, photoperiod 14L:10D. After 48 hours, calculate the mortality rate and adjusted mortality rate according to formula (1) and (2) (see Example 1). If the mortality rate of the control group is between 5% and 20%, the adjusted mortality rate must be calculated; if the mortality rate of the control group is below 5%, it is expressed as the mortality rate; if the mortality rate of the control group is above 20%, the experiment fails. Calculate the median lethal concentration (LC50) of each agent for corn borer larvae based on the mortality rate of corn borer larvae and the concentration of the agent 50 ).

[0105] The toxicity of the insecticide compositions with different ratios to corn borer larvae for 48 hours is shown in Table 5.

[0106] Table 5 Toxicity of different insecticide combinations to corn borer larvae (48 hours)

[0107] Test drug mortality rate Component A: Chlorantraniliprole (4:1, composition concentration 10 mg / L) 45.56％ Component A: Chlorantraniliprole (3:1, composition concentration 10 mg / L) 45.56％ Component A: Chlorantraniliprole (2:1, composition concentration 10 mg / L) 60.00％ Component A: Chlorantraniliprole (1:1, composition concentration 10 mg / L) 46.67％ Component A: Chlorantraniliprole (1:2, composition concentration 10 mg / L) 53.33％ Component A: Chlorantraniliprole (1:3, composition concentration 10 mg / L) 57.78％ Component A: Chlorantraniliprole (1:4, composition concentration 10 mg / L) 68.89％ Component A: tetrachlorvinphos (4:1, composition concentration 15 mg / L) 42.22％ Component A: tetrachlorvinphos (3:1, composition concentration 15 mg / L) 45.56％ Component A: tetrachlorvinphos (2:1, composition concentration 15 mg / L) 46.67％ Component A: tetrachlorvinphos (1:1, composition concentration 15 mg / L) 50.00％ Component A: tetrachlorvinphos (1:2, composition concentration 15 mg / L) 51.11％ Component A: tetrachlorvinphos (1:3, composition concentration 15 mg / L) 54.44％ Component A: tetrachlorvinphos (1:4, composition concentration 15 mg / L) 46.67％ Component A: Emamectin benzoate (4:1, composition concentration 0.5 mg / L) 52.22％ Component A: Emamectin benzoate (3:1, composition concentration 0.5 mg / L) 53.33％ Component A: Emamectin benzoate (2:1, composition concentration 0.5 mg / L) 65.56％ Component A: Emamectin benzoate (1:1, composition concentration 0.5 mg / L) 52.22％ Component A: Emamectin benzoate (1:2, composition concentration 0.5 mg / L) 66.67％ Component A: Emamectin benzoate (1:3, composition concentration 0.5 mg / L) 73.33％ Component A: Emamectin benzoate (1:4, composition concentration 0.5 mg / L) 75.56％

[0108] As shown in Table 5, the insecticide combination with the highest mortality rate for corn borer larvae within 48 hours was selected for precise toxicity determination. The median lethal concentration of each active ingredient alone and the combination for corn borer larvae is shown in Table 6.

[0109] Table 6 LC of each agent alone and in combination against corn borer larvae 50 (48 hours)

[0110]

[0111] It can be seen from Table 6 that the toxicity of each active ingredient to corn borer larvae is relatively high. The LC value of active ingredient A to corn borer larvae is 50 The LC value of chlorantraniliprole to corn borer larvae is 583.192 mg / L. 50 The LC value of tetrachlorantraniliprole against corn borer larvae is 12.517 mg / L. 50 The LC value of emamectin benzoate against corn borer larvae is 17.063 mg / L. 50 It is 0.431mg / L.

[0112] Component A: chlorantraniliprole mass ratio 1:4 (recorded as formula 7) LC 50 The LC of component A: chlorantraniliprole mass ratio 1:3 (recorded as formula 8) was 8.803 mg / L, which was 66.2 times lower than that of component A alone and 1.4 times lower than that of chlorantraniliprole alone. 50 The LC of component A: emamectin benzoate mass ratio 1:4 (recorded as formula 9) was 13.463 mg / L, which was 43.3 times lower than that of component A alone and 1.3 times lower than that of tetrachlorantraniliprole alone. 50 It is 0.349 mg / L, which is 1671 times lower than that of a single dose of component A and 1.2 times lower than that of a single dose of avermectin benzoate.

[0113] Example 4

[0114] This example provides the preparation of insecticide composition formulations, including suspensions and aqueous emulsions.

[0115] (I) When the insecticide preparation is a suspension, it is composed of the following components in percentage by weight: 12% of active ingredient, 10% of a first dispersant, 1% of a first thickener, 2% of a first stabilizer, 1% of a first defoamer, 1% of a penetrant, 12% of an antifreeze agent, and the remainder is water; the pH value of the suspension is 7; wherein the active ingredient is a compound of (1S, 2R, 4S)-1,3,3-trimethylbicyclo[2.2.1]heptane-2-yl-4-(tert-butyl) benzoate and chlorantraniliprole or tetrachlorantraniliprole, the compounding ratio is 1:2 to 2:1, the first dispersant is sodium lignin sulfonate, the first thickener is xanthan gum, the first stabilizer is catechol, the first defoamer is silicone oil, the penetrant is trisiloxane, and the antifreeze agent is ethylene glycol.

[0116] The preparation method of the suspension is as follows:

[0117] The active ingredient, the first dispersant, the first thickener, the first stabilizer, the first defoamer, the penetrant, the antifreeze agent and water are mixed and ball-milled to obtain the suspension, wherein the ball-milling time is 2 hours and the particle size of the suspension is less than 5 μm.

[0118] (ii) When the insecticide preparation is an aqueous emulsion, it is composed of the following components in percentage by mass: active ingredient 9%, organic solvent 10%, emulsifier 4%, surfactant 1%, bentonite 5%, second dispersant 3%, second thickener 1%, second stabilizer 1%, palm oil methyl octanoate 0.6%, second defoamer 0.4%, coating material 5%, and water as the balance; wherein the active ingredients are (1S,2R,4S)-1,3,3-trimethylbicyclo[2.2.1]heptane-2-yl-4-(tert-butyl) benzoate and avermectin benzoate salt, with a mass ratio of 2:1; the organic solvent is cyclohexanone; the emulsifier is polyoxyethylene castor oil; the surfactant is α-olefin sulfonate and polyvinyl acetate (mass ratio is 65:35); the model of bentonite is TY-260; the second dispersant is styrene-succinic anhydride copolymer sodium salt; the second thickener is hydroxymethyl cellulose; the second stabilizer is tert-butylhydroquinone; the second defoamer is polyalkylsiloxane; the coating material is methyl methacrylate, attapulgite, N,N-methylenebisacrylamide and polyethylene glycol ether, with a mass ratio of 10:6:2:1.

[0119] The preparation method of the aqueous emulsion is as follows:

[0120] The components of the coating material are added into a sealed reactor and heated at 90° C. After heating, the heated materials are dispersed to obtain a coating liquid;

[0121] Preheating the active ingredient to 90° C., spraying the coating liquid on the surface of the preheated active ingredient for coating, and drying the obtained material after spraying to obtain a coated agent;

[0122] The coating agent, the organic solvent, the second dispersant and the surfactant are mixed to obtain an oil phase; the mixing method is: adding the organic solvent and the second dispersant to a dispersion kettle for a first mixing and dispersion to obtain a first dispersion; then adding the coating agent and the surfactant to the first dispersion for a second mixing and dispersion to obtain an oil phase;

[0123] The emulsifier, the second thickener, the second stabilizer, the second defoamer and water are mixed at 45° C. to obtain an aqueous phase;

[0124] The oil phase is added to the water phase, and the obtained mixture is mixed with bentonite and palm oil methyl octanoate and subjected to ultrasonic emulsification treatment to obtain the aqueous emulsion.

[0125] Example 5

[0126] This example provides the field efficacy of insecticide formulations against cotton bollworms.

[0127] The experiment was arranged in the cotton field of the first company of the teaching experimental field of Shihezi University, Shihezi City, the Eighth Division of the Xinjiang Production and Construction Corps. The experimental field adopts medium-level fertilization, and the previous crop is cotton, which has been planted for many consecutive years. The cotton variety for the test is Huiyuan 720 (non-insect-resistant cotton), and the machine-picked cotton planting mode is adopted, with 6 rows per film, a row spacing of 66+10cm, a conventional wide and narrow row sowing mode, and the application period is the bud and boll stage. The cotton grows uniformly. The experimental design is shown in Table 7 (the agent in Table 7 is prepared according to the method of Example 4, and it is only necessary to adjust the type of active ingredient and the amount of active ingredient and water according to Example 4). On July 10, 2024, the agent was applied by spraying from the peak hatching period of cotton bollworm eggs to the second instar larvae. Five random points were selected in the middle of each plot, and 5 cotton plants with cotton bollworm eggs and larvae were fixed at each point, for a total of 25 plants. The number of larvae and eggs were recorded before the drug, and the number of larvae was recorded after the drug. At least 50 eggs were collected from cotton plants other than those investigated and brought back to be cultured under moisturizing conditions at room temperature. The hatching rate of eggs was determined at different times. During the last investigation after application, the bud and boll damage rate and bud protection effect should be counted. If there are fewer buds and bolls, the terminal bud damage rate and the terminal protection effect should be counted, that is, the total number of buds and bolls on the fixed plants and the number of damaged buds and bolls; the total number of plants and the number of plants with damaged terminal buds (refer to the Guidelines for Field Efficacy Tests of Pesticides (I): Insecticides for Control of Cotton Bollworm (GB / T 17980.5-2000)). The number of larvae and eggs on the fixed plants should be investigated before application, and the investigation should be conducted 1, 3 and 7 days after application. On the 7th day after application, the bud and boll damage rate or the terminal bud damage rate should be investigated at the same time. The efficacy of the pesticide should be calculated according to the following formulas ((3) to (11)):

[0128] Egg hatching rate (%) = (number of hatched eggs / total number of eggs) × 100 (3);

[0129] The insect population reduction rate on the first day (%) = (((the number of larvae before medication + the number of eggs before medication × the egg hatching rate one day after medication) - the number of larvae after medication) / (the number of larvae before medication + the number of eggs before medication × the egg hatching rate one day after medication)) × 100 (4);

[0130] The insect population reduction rate on the third day (%) = (((the number of larvae before medication + the number of eggs before medication × the egg hatching rate 3 days after medication) - the number of larvae after medication) / (the number of larvae before medication + the number of eggs before medication × the egg hatching rate 3 days after medication)) × 100 (5);

[0131] The insect population reduction rate on the 7th day (%) = (((the number of larvae before medication + the number of eggs before medication × the egg hatching rate 7 days after medication) - the number of larvae after medication) / (the number of larvae before medication + the number of eggs before medication × the egg hatching rate 7 days after medication)) × 100 (6);

[0132] Control effect (%) = ((insect population reduction rate in the pesticide treatment area - insect population reduction rate in the blank control area) / (100 - insect population reduction rate in the blank control area) × 100 (7);

[0133] Flower bud damage rate (%) = (cumulative number of damaged flower buds / total number of investigated flower buds) × 100 (8);

[0134] Bud protection effect (%) = ((bud damage rate in blank control area - bud damage rate in drug treatment area) / bud damage rate in blank control area) × 100 (9);

[0135] Terminal bud damage rate (%) = (number of damaged plants at growing points / total number of plants investigated) × 100 (10);

[0136] Top-protection effect (%) = ((top bud damage rate in the blank control area - top bud damage rate in the drug-treated area) / top bud damage rate in the blank control area) × 100 (11).

[0137] Table 7 Experimental design

[0138]

[0139]

[0140] Note: In Table 7, 3% component A·6% chlorantraniliprole suspension concentrate means that the mass percentage content of component A in the suspension concentrate is 3%, and the mass percentage content of chlorantraniliprole is 6%, and the others are similar.

[0141] The field control effects of insecticide preparations against cotton bollworm larvae are shown in Table 8.

[0142] Table 8 Field control effect of insecticide combination on cotton bollworm larvae

[0143]

[0144] Note: Different uppercase and lowercase letters in Table 8 indicate significant differences at the 1% and 5% levels.

[0145] As can be seen from Table 8, 3% Component A·6% chlorantraniliprole suspension, 10% Component A·5% tetrachlorantraniliprole suspension and 6% Component A·3% avermectin benzoate emulsion in water have better control effects on cotton bollworm, bud and top protection effects on cotton than single agents, showing excellent effects.

[0146] Example 6

[0147] This example provides the field efficacy of the insecticide formulation against cotton bollworm in pepper fields.

[0148] The experiment was arranged in the second company of the teaching experimental field of Shihezi University, Shihezi City, the Eighth Division of the Xinjiang Production and Construction Corps (44°19′0″N, 86°0′47″E). The experimental field adopts medium-level fertilization and has been planting peppers for many years. The pepper variety for the test is Honglong 23. The planting mode of one film and 6 rows is adopted, the row spacing is 60+15cm, and the conventional sowing mode of wide and narrow rows is adopted. The growth of peppers is uniform. The soil type of the experimental site is loam, with medium fertility and a pH value of about 7.0. The experimental design is shown in Table 7. On July 1, 2024, a DJI T50 unmanned aircraft was used to apply the agent by spraying. The liquid application volume was 2L / mu, the flight speed was 5m / s, the flight height was 2.5m (from the top of the crop), and the spray width was 6m. Each treatment was repeated 3 times, and the area of ​​each repeated plot was 2 mu. The Z-shaped 5-point sampling method was used to sample peppers. Ten pepper plants were selected at each point. The number of fruit infestations at each sampling point was counted before application and 1, 3, 7, and 14 days after application. The fruit infestation control efficacy was calculated according to the following formula ((12)-(13)):

[0149] Fruit infestation rate (%) = (number of infested fruits / total number of fruits surveyed) × 100 (12);

[0150] Fruit infestation prevention effect (%) = ((fruit infestation rate in the blank control area - fruit infestation rate in the area treated with the pesticide) / fruit infestation rate in the blank control area) × 100 (13).

[0151] The control effects of the insecticide preparations on cotton bollworm in pepper fields are shown in Table 9.

[0152] Table 9 The efficacy of insecticide preparations against cotton bollworm in pepper fields

[0153]

[0154] As can be seen from Table 9, 3% Component A·6% chlorantraniliprole suspension, 10% Component A·5% tetrachlorantraniliprole suspension and 6% Component A·3% avermectin benzoate emulsion have good control effects on cotton bollworm in pepper fields, and their fruit control effects are better than those of a single agent, showing excellent effects.

[0155] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An insecticide composition, characterized in that: The invention comprises component A and component B, wherein component A is (1S, 2R, 4S)-1, 3, 3-trimethylbicyclo[2.2.1]heptane-2-yl-4-(tert-butyl) benzoate, and component B is chlorantraniliprole, tetrachlorantraniliprole or avermectin benzoate, and the mass ratio of component A to component B is 1:(0.25-4).

2. The insecticide composition according to claim 1, characterized in that When the component B is chlorantraniliprole, the mass ratio of the component A to the component B is 1:2 or 1:

4.

3. The insecticide composition according to claim 1, characterized in that When the component B is tetrachlorantraniliprole, the mass ratio of the component A to the component B is 2:1, 1:3 or 1:

4.

4. The insecticide composition according to claim 1, characterized in that When the component B is emamectin benzoate, the mass ratio of the component A to the component B is 2:1, 1:3 or 1:

4.

5. An insecticide preparation, characterized in that Including suspension or water emulsion, when the insecticide preparation is a suspension, it includes the following components in percentage by weight: active ingredient 9-45%, first dispersant 2-30%, first thickener 0.5-20%, first stabilizer 0.01-20%, first defoamer 1-5%, penetrant 1-5%, antifreeze 0.1-15%, and water as the balance; When the insecticide preparation is an aqueous emulsion, it includes the following components in percentage by weight: 6-12% of active ingredient, 10-15% of organic solvent, 4-8% of emulsifier, 1-3% of surfactant, 5-10% of bentonite, 3-6% of second dispersant, 1-3% of second thickener, 1-3% of second stabilizer, 0.6-1% of palm oil methyl octanoate, 0.3-0.7% of second defoamer, 5-10% of coating material, and the balance of water; The active ingredient in the suspension and the aqueous emulsion is the insecticide composition according to any one of claims 1 to 4.

6. The insecticide preparation according to claim 5, characterized in that When the insecticide preparation is a suspension, component B in the active ingredient is chlorantraniliprole or tetrachlorantraniliprole; when the insecticide preparation is an emulsion in water, component B in the active ingredient is emamectin benzoate.

7. The insecticide preparation according to claim 5, characterized in that The coating material comprises methyl methacrylate, attapulgite, N,N-methylenebisacrylamide and polyethylene glycol ether, and the mass ratio of the methyl methacrylate, attapulgite, N,N-methylenebisacrylamide and polyethylene glycol ether is (8-10):(5-6):(2-3):

1.

8. The method for preparing the insecticide preparation according to any one of claims 5 to 7, characterized in that: When the insecticide preparation is a suspension, the method comprises the following steps: The active ingredient, the first dispersant, the first thickener, the first stabilizer, the first defoamer, the penetrant, the antifreeze agent and water are mixed and ball-milled to obtain the suspension; When the pesticide preparation is an aqueous emulsion, the method comprises the following steps: The coating material is heated to 85-95° C. to obtain a coating solution; Preheating the active ingredient to 85-95° C., spraying the coating liquid on the surface of the preheated active ingredient to coat the active ingredient, thereby obtaining a coated agent; The coating agent, the organic solvent, the second dispersant and the surfactant are mixed to obtain an oil phase; The emulsifier, the second thickener, the second stabilizer, the second defoamer and water are mixed at 40-50° C. to obtain an aqueous phase; The oil phase is added to the water phase, and the obtained mixture is mixed with bentonite and palm oil methyl octanoate and subjected to ultrasonic emulsification treatment to obtain the aqueous emulsion.

9. Use of the insecticide composition according to any one of claims 1 to 4 or the insecticide preparation according to any one of claims 5 to 7 in controlling lepidopteran pests.

10. The use according to claim 9, characterized in that: The lepidopteran pests include cotton bollworm, diamondback moth or corn borer.

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