Insecticide composition and application thereof

Abstract

The invention relates to the technical field of pesticides, and particularly discloses an insecticide composition and application thereof. The insecticide composition is prepared from fluxazole amide and emamectin benzoate in a mass ratio of (20: 1) to (1: 20). According to the present invention, the insecticidal advantages of the fluxazole amide and the emamectin benzoate are combined, such that the insecticidal effect is improved, the generation of the pest drug resistance is delayed, the pest drug resistance development chain is broken, and the service life of the insecticide is significantly prolonged so as to ensure the safety and the harvest of crops; fluxazole amide and emamectin benzoate in a specific ratio have a remarkable synergistic effect and can effectively aim at various pests, and the dosage of the insecticide is reduced. Meanwhile, the combination of the fluxazole amide and the emamectin benzoate can greatly improve the persistent effect of the insecticide, the medication frequency is remarkably reduced, the influence of a pesticide preparation on the environment, non-target organisms and the drug resistance of a controlled object is effectively reduced, and the composition has the characteristic of environmental friendliness and promotes ecological balance.

Description

Technical Field

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

[0002] my country is a large agricultural country, but due to the perennial occurrence of crop diseases, insect pests and weeds, a large amount of pesticides need to be produced and used every year. However, the long-term and large-scale use of chemical pesticides has brought great impacts on the environment and the resistance of non-target organisms.

[0003] Lepidoptera pests are a type of pests in the order Lepidoptera of the class Insecta that are serious hazards to crops, forests, garden plants, etc. The main species include the diamondback moth, cotton bollworm, beet armyworm, cutworm, and codling moth. Most lepidoptera pest larvae are herbivorous, feeding on leaves, stems, fruits, seeds, etc. of plants, robbing them of nutrients, causing branches and flowers to curl, and even the whole plant to wither or die. Currently, commonly used chemical drugs for the prevention and control of lepidoptera pests include organophosphates, pyrethroids, carbamates, biogenics, etc.

[0004] Tetranychus pests are also a common type of harmful organisms in agricultural production. They belong to the family Tetranychus of the order Acarina of the class Arachnida. The main species include the cinnabar spider mite, the two-spotted spider mite, the hawthorn spider mite, etc. They reproduce very quickly, mostly move and feed on the back of the leaves, pierce the mesophyll tissue with their mouthparts, and suck the juice in the cells. When there are too many spider mites on the leaves, they will spin silk to make webs, move and lay eggs in the webs, and in severe cases, the entire leaf will be covered with silk webs. Currently, the commonly used pesticides for the control of Tetranychus pests are mostly avermectins, pyridaben, spirocyclobutan, etc.

[0005] At present, the pesticide control of Lepidoptera and Tetranychus pests often has poor control effect stability and short duration, and it is difficult to achieve the expected control effect after repeated use. Moreover, the large-scale and repeated use of these pesticides will inevitably have an impact on the environment, non-target organisms, and pest resistance. A large amount of drug residues also affects the healthy consumption of crops to a certain extent. Therefore, it is an inevitable trend to study new pesticides with good environmental compatibility, low dosage, low residue, good control effect, and the ability to effectively prevent the spread of Lepidoptera and Tetranychus pests. Summary of the invention

[0006] In view of the above problems existing in the existing pesticides for controlling pests and diseases, the present invention provides an insecticide composition and its application, which has excellent control effect on Lepidoptera and Tetranychus pests with small dosage and low application frequency.

[0007] In order to achieve the above-mentioned object of the invention, the embodiment of the present invention adopts the following technical solution: In a first aspect, the present invention provides an insecticide composition comprising fluoxetine amide and avermectin benzoate in a mass ratio of 20:1 to 1:20.

[0008] Compared with the prior art, the insecticide composition provided by the present invention combines the insecticidal advantages of fluoxazolamide and emamectin benzoate by mixing the active components fluoxazolamide and emamectin benzoate (abbreviated as emamectin benzoate), improves the insecticidal effect, delays the development of pest resistance, breaks the pest resistance development chain, and significantly prolongs the service life of the insecticide, thereby ensuring the safety and harvest of crops; the specific ratio of fluoxazolamide and emamectin benzoate has a significant synergistic effect, can effectively target a variety of pests, and reduce the amount of insecticide used. At the same time, the combination of fluoxazolamide and emamectin benzoate can greatly enhance the lasting effect of the insecticide, significantly reduce the number of medications, and effectively reduce the impact of pesticide preparations on the environment, non-target organisms, and the resistance of control objects, which has environmentally friendly characteristics and promotes ecological balance.

[0009] Preferably, the mass ratio of the fluoxetine amide to avermectin benzoate is 10:1 to 1:10.

[0010] Further preferably, the mass ratio of the oxazolidinone amide to avermectin benzoate is 5:1 to 1:5.

[0011] The composition ratio of the above active components fluoxetine amide and emamectin benzoate can further improve the control effect of the insecticide and reduce the dosage of the insecticide.

[0012] In a second aspect, the present invention provides a pesticide preparation, comprising the insecticide composition.

[0013] Preferably, the pesticide formulation further comprises agriculturally acceptable adjuvants.

[0014] Further preferably, the mass ratio of the insecticide composition to the auxiliary material is 1:99~9:1.

[0015] Preferably, the auxiliary material includes at least one of an emulsifier, a dispersant, a wetting agent, a solvent, an antifreeze agent, a defoaming agent, a thickener, a disintegrant, a preservative or a filler.

[0016] In the present invention, the emulsifier can effectively improve the stability and dispersibility of the pesticide preparation; the dispersant helps to improve the uniformity and effectiveness of the pesticide preparation, ensuring its stable performance during use; the wetting agent can effectively reduce the surface tension, help the pesticide preparation to better adhere to the plant surface, and improve the efficacy; the solvent not only helps to dissolve the various components, but also improves the application effect of the pesticide preparation; the antifreeze can effectively reduce the risk of freezing of the pesticide preparation in a low temperature environment, ensuring its stability under various climatic conditions; the defoamer can effectively inhibit the formation of foam and improve the application effect; the thickener can improve the consistency of the pesticide preparation, enhance its adhesion and lasting effect; the disintegrant accelerates the disintegration of the pesticide preparation in the solvent through physical action, increases the release rate and suspension of the active ingredients, thereby improving the use effect of the pesticide preparation; the filler can not only increase the volume of the pesticide preparation, but also improve its physical properties; the preservative can effectively extend the shelf life of the product and ensure the safety of the pesticide preparation during storage and use.

[0017] Further preferably, the pesticide preparation comprises the following raw materials in percentage by weight: emulsifier 0-40%, dispersant 1%-10%, wetting agent 0-8%, solvent 5%-90%, antifreeze 0-10%, defoamer 0.1%-5%, thickener 0-10%, disintegrant 0-10%, preservative 0.1%-1%, filler 0.5%-10%, and the balance is the insecticide composition.

[0018] More preferably, the pesticide preparation comprises the following raw materials in percentage by weight: emulsifier 5%~30%, dispersant 3%~7%, wetting agent 1%~6%, solvent 20%~80%, antifreeze agent 4%~8%, defoamer 0.1%~2%, thickener 0.5%~5%, disintegrant 2%~6%, preservative 0.2%~0.8%, filler 1%~6%, and the balance is the insecticide composition.

[0019] Further preferably, the emulsifier includes at least one of phenethylphenol polyoxyethylene polyoxypropylene ether, alkylaryl polyoxyethylene polyoxypropylene ether, fatty acid polyoxyethylene ether, fatty alcohol polyoxyethylene ether or glyceryl laurate polyoxyethylene ether.

[0020] Further preferably, the dispersant includes a surfactant.

[0021] Further preferably, the dispersant includes at least one of alkylphenol polyoxyethylene ether phosphate, sodium lignin sulfonate or polycarboxylate.

[0022] More preferably, the dispersant comprises at least one of styrene-maleic anhydride copolymer or ethoxylated alcohol.

[0023] Further preferably, the wetting agent includes at least one of sodium alkylnaphthalene sulfonate, sodium dodecyl sulfate or secondary alkyl sodium sulfate.

[0024] Further preferably, the solvent includes at least one of water, methanol or ethanol.

[0025] Typically, water is industrial deionized water to ensure the purity and stability of the pesticide formulation.

[0026] Further preferably, the antifreeze agent includes at least one of ethylene glycol or propylene glycol.

[0027] Further preferably, the defoaming agent includes at least one of a silicone compound or an emulsified silicone oil.

[0028] Further preferably, the thickener includes at least one of xanthan gum or polyvinyl alcohol.

[0029] Further preferably, the disintegrant comprises at least one of ammonium sulfate, sodium carboxymethyl starch, urea, low-substituted hydroxypropyl cellulose, cross-linked sodium carboxymethyl cellulose, cross-linked polyvinylpyrrolidone, sodium alginate, sodium bicarbonate or sodium chloride.

[0030] Further preferably, the preservative includes at least one of sodium citrate, kasone or sodium benzoate.

[0031] Further preferably, the filler includes at least one of white carbon black, magnesium aluminum silicate, bentonite or kaolin.

[0032] Preferably, the pesticide formulation comprises a suspending concentrate.

[0033] In a third aspect, the present invention provides a method for preparing the suspension concentrate, comprising the following steps: The insecticide composition is mixed with auxiliary materials and wet-milled to obtain a suspension.

[0034] Preferably, the particle size of the suspending agent is D 90 ≤5μm.

[0035] In a fourth aspect, the present invention also provides a use of the insecticide composition in controlling crop pests.

[0036] Preferably, the crop pests include at least one of Lepidoptera pests or Tetranychus pests.

[0037] Further preferably, the lepidopteran pests include at least one of the beet armyworm, the diamondback moth, the rice leaf folder, the rice stem borer or the fall armyworm.

[0038] Further preferably, the Tetranychus pests include Tetranychus urticae. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] Unless otherwise specified, the materials used in the present invention are all commercially available products.

[0041] Example 1 This embodiment provides an indoor toxicity test of an insecticide composition against Plutella xylostella.

[0042] The experiment adopted the leaf immersion method. Fresh, flat, and uncontacted cabbage leaves were selected and cut into Φ6 cm leaves with a hole puncher. The original drugs of the insecticide composition (fluoxetine and emamectin benzoate) were dissolved in DMSO to form a 10000 ppm mother solution, and then diluted with 0.1 v / v% Trition aqueous solution to prepare 7 concentrations according to different ratios as the treatment group; a 0.1 v / v% Trition aqueous solution was used as the control group. The leaves were placed in the insecticide composition with the corresponding concentration gradient, soaked for 15 seconds, taken out and dried, and placed in a Φ6 cm culture dish. Second-instar larvae of the same size were selected, and 10 larvae were placed in each culture dish. The culture dish was placed in an environment with a temperature of 25℃~26℃, a relative humidity of 50%~60%, and a light cycle of L:D=14:10, and the death situation was recorded after 72 hours to determine the LC of the agent. 50 value.

[0043] Mortality rate = number of dead insects / total number of insects × 100%; Adjusted mortality rate = (mortality rate of treatment group - mortality rate of control group) / (1-mortality rate of control group) × 100%.

[0044] The co-toxicity coefficient method was used to evaluate the combined effect of the insecticide combination on Plutella xylostella (with fluoxetine as the standard agent), and the results are shown in Table 1. A co-toxicity coefficient CTC>120 indicates a synergistic effect, a co-toxicity coefficient CTC=80~120 indicates an additive effect, and a co-toxicity coefficient <80 indicates an antagonistic effect.

[0045] Measured Toxicity Index (ATI) = (Standard Agent LC 50 / Test reagent LC 50 )×100; Theoretical toxicity index (TTI) of mixture = toxicity index of agent A × percentage of agent A in the mixture + toxicity index of agent B × percentage of agent B in the mixture; Co-toxicity coefficient of mixture (CTC) = (ATI / TTI) × 100.

[0046] Table 1 Indoor toxicity test results of insecticide compositions against Plutella xylostella Treatment Group LC 50 (mg / L) ATI TTI CTC Fluoxathiocarbamide (A) 0.159 100.00 / / Emamectin benzoate (B) 0.063 252.38 / / A:B=20:1 0.190 83.68 107.26 78.02 A:B=10:1 0.203 78.33 113.85 68.80 A:B=5:1 0.133 119.55 125.40 95.34 A:B=1:1 0.062 256.45 176.19 145.55 A:B=1:5 0.032 496.88 226.98 218.90 A:B=1:10 0.061 260.66 238.53 109.28 A:B=1:20 0.052 305.77 245.12 124.74 According to the results of indoor toxicity test on Plutella xylostella, when the mass ratio of fluoxetine to emamectin benzoate was 1:1, 1:5 and 1:20, the biological activity of fluoxetine to Plutella xylostella was synergistic. 50 The values ​​were 0.062mg / L, 0.032mg / L and 0.052mg / L, and the co-toxicity coefficients were 145.55, 218.90 and 124.74, respectively. Among them, the best effect was achieved when the mass ratio of fluoxazolidinone to emamectin benzoate was 1:5.

[0047] Example 2 This example provides an indoor toxicity test of an insecticide composition against Spodoptera exigua.

[0048] The test method is similar to that of Example 1 (except that the diamondback moth is replaced by the beet armyworm), and will not be described in detail. The results are shown in Table 2.

[0049] Table 2 Indoor toxicity test results of insecticide compositions against beet armyworm Treatment Group LC 50 (mg / L) ATI TTI CTC Fluoxathiocarbamide (A) 0.088 100.00 / / Emamectin benzoate (B) 0.016 550.00 / / A:B=20:1 0.060 146.67 121.43 120.78 A:B=10:1 0.050 176.00 140.91 124.90 A:B=5:1 0.021 419.05 175.00 239.46 A:B=1:1 0.010 880.00 325.00 270.77 A:B=1:5 0.019 463.16 475.00 97.51 A:B=1:10 0.013 676.92 509.09 132.97 A:B=1:20 0.017 517.65 528.57 97.93 As shown in the results in Table 2, when the mass ratio of oxazolidinone to emamectin benzoate was 20:1, 10:1, 5:1, 1:1 and 1:10, the biological activity of Spodoptera exigua was synergistic, among which the mass ratio of oxazolidinone to emamectin benzoate was 5:1 and 1:1, and the best effect was obtained. 50 The values ​​were 0.021 mg / L and 0.010 mg / L, and the co-toxicity coefficients were 239.46 and 270.77, respectively.

[0050] Example 3 This example provides an indoor toxicity test of an insecticide composition against Asian corn borer.

[0051] The test method is similar to that of Example 1 (except that the diamondback moth is replaced by the Asian corn borer), and will not be described in detail. The results are shown in Table 3.

[0052] Table 3 Indoor toxicity test results of insecticide compositions against Asian corn borer Treatment Group LC 50 (mg / L) ATI TTI CTC Fluoxathiocarbamide (A) 1.308 100.00 / / Emamectin benzoate (B) 0.112 1167.86 / / A:B=20:1 0.917 142.64 150.85 94.56 A:B=10:1 0.264 495.45 197.08 251.40 A:B=5:1 0.119 1099.16 277.98 395.42 A:B=1:1 0.050 2616.00 633.93 412.66 A:B=1:5 0.078 1676.92 989.88 169.41 A:B=1:10 0.088 1486.36 1070.78 138.81 A:B=1:20 0.063 2076.19 1117.01 185.87 As shown in the results in Table 3, when the mass ratio of oxazolidinone to emamectin benzoate was 10:1, 5:1, 1:1, 1:5, 1:10 and 1:20, the biological activity of Ostrinia furnacalis was enhanced, among which the mass ratio of oxazolidinone to emamectin benzoate was 5:1 and 1:1, and the LC 50 The values ​​were 0.119 mg / L and 0.050 mg / L, and the co-toxicity coefficients were 395.42 and 412.66, respectively.

[0053] Example 4 This embodiment provides an indoor toxicity test of an insecticide composition against two-spotted spider mites.

[0054] The experiment adopted the leaf immersion method. Fresh leaves were cut from green bean seedlings and cut into Φ2.5cm leaves with a hole puncher. The original drugs of the insecticide composition (fluoxetine and emamectin benzoate) were dissolved in DMSO to 10000ppm mother solution, and then diluted with 0.1v / v% Trition aqueous solution to prepare 7 concentrations according to different ratios as the treatment group; a 0.1v / v% Trition aqueous solution was used as the control group. The leaves were placed in the insecticide composition with the corresponding concentration gradient and soaked for 15s, then taken out and dried, and placed in a Φ3cm culture dish containing 1v / v% agar with the back of the leaves facing up. Female adult mites of the same size were selected, and 10 female adult mites were placed in each culture dish. The culture dishes were placed in an environment with a temperature of 25℃~26℃, a relative humidity of 50%~60%, and a light cycle of L:D=14:10, and their mortality after 72h was recorded.

[0055] The co-toxicity coefficient method is the same as in Example 1 and will not be described in detail. The results are shown in Table 4.

[0056] Table 4 Indoor toxicity test results of insecticide compositions against Tetranychus urticae Treatment Group LC 50 (mg / L) ATI TTI CTC Fluoxathiocarbamide (A) 6.422 100.00 / / Emamectin benzoate (B) 0.776 827.58 / / A:B=20:1 4.120 155.87 134.65 115.77 A:B=10:1 4.182 153.56 166.14 92.43 A:B=5:1 2.898 221.60 221.26 100.15 A:B=1:1 0.243 2642.80 463.79 569.83 A:B=1:5 0.428 1500.47 706.31 212.44 A:B=1:10 0.635 1011.34 761.43 132.82 A:B=1:20 0.532 1207.14 792.93 152.24 As shown in the results in Table 4, when the mass ratio of fluoxetine to emamectin benzoate was 1:1, 1:5, 1:10 and 1:20, the biological activity of oxazolidinone was enhanced, among which the mass ratio of fluoxetine to emamectin benzoate was 1:1 and 1:5, and the LC 50 The values ​​were 0.243 mg / L and 0.428 mg / L respectively, and the co-toxicity coefficients were 569.83 and 212.44 respectively.

[0057] Application Example 1 This application example provides a suspension concentrate, which is composed of the following raw materials: 5g of fluoxetine amide, 5g of emamectin benzoate, 4g of polycarboxylate dispersant, 2g of non-ionic surfactant, 0.2g of xanthan gum, 10g of ethylene glycol, 0.5g of magnesium aluminum silicate, 0.2g of defoaming agent, 0.1g of preservative, and 100g of deionized water.

[0058] The preparation method of the above-mentioned suspension comprises the following steps: Mix all the raw materials evenly and grind them wet in a horizontal sand mill to an average particle size of D 90 =5μm, and obtain suspension.

[0059] Application Example 2 This application example provides a suspension concentrate composed of the following raw materials: 1 g of fluoxetine amide, 5 g of emamectin benzoate, 3 g of styrene-maleic anhydride copolymer, 1.5 g of ethoxylated alcohol, 2 g of polyvinyl alcohol, 5 g of propylene glycol, 0.5 g of magnesium aluminum silicate, 0.2 g of defoamer, 0.2 g of preservative, 1 g of bentonite, and 100 g of deionized water.

[0060] The preparation method of the above suspension is the same as that of Application Example 1 and will not be described in detail.

[0061] Application Example 3 This application example provides a suspension concentrate composed of the following raw materials: 25 g of fluoxetine amide, 5 g of emamectin benzoate, 3 g of sodium lignin sulfonate, 1 g of plant-derived surfactant, 2 g of sodium alginate, 0.4 g of sodium citrate, 0.5 g of magnesium aluminum silicate, 0.5 g of defoamer, 0.2 g of kason, 1 g of food-grade bentonite, and 100 g of deionized water.

[0062] The preparation method of the above suspension is the same as that of Application Example 1 and will not be described in detail.

[0063] Application Example 4 This application example provides a suspension concentrate, which is composed of the following raw materials in mass: 10g of fluoxetine amide, 1g of emamectin benzoate, 5g of phenethylphenol polyoxyethylene polyoxypropylene ether, 2g of alkylphenol polyoxyethylene ether phosphate, 0.1g of sodium dodecyl sulfate, 0.1g of defoaming agent, 1g of sodium carboxymethyl starch, 1g of white carbon black, 10g of methanol, and 100g of deionized water.

[0064] The preparation method of the above suspension is the same as that of Application Example 1 and will not be described in detail.

[0065] Application Comparative Example 1 This comparative application example provides a fluoxazolidinone suspension, which is similar to Application Example 1, except that emamectin benzoate is replaced with fluoxazolidinone of the same mass (i.e., the mass of fluoxazolidinone is 10 g). The remaining raw materials, contents, preparation methods, etc. are the same as those in Application Example 1 and will not be described in detail.

[0066] Application Comparative Example 2 This comparative application example provides a suspension concentrate of emamectin benzoate, which is similar to Application Example 1, except that emamectin benzoate is replaced with deionized water of the same mass. The remaining raw materials, contents, preparation methods, etc. are the same as those in Application Example 1 and will not be described in detail.

[0067] Verification test According to GB / T 14825-2023, the suspending agents of Examples 1 to 4 were subjected to physical and chemical tests. The test structure is shown in Table 5.

[0068] Table 5 Physical and chemical test results of suspension in application examples Test indicators Testing requirements Application Example 1 Application Example 2 Application Example 3 Application Example 4 Suspension rate ≥90% ≥95% ≥95% ≥95% ≥95% pH 4~7 5.5 5.4 5.6 5.5 Residue after dumping ≤5% ≤5% ≤5% ≤5% ≤5% Long-lasting foaming ≤60mL ≤60 mL ≤60 mL ≤60 mL ≤60 mL Thermal storage stability qualified qualified qualified qualified qualified Cold storage stability qualified qualified qualified qualified qualified Field control effectiveness test: The experimental rice field area is about 1 mu, the variety is Quanyou 328, the sowing method is machine transplanting, the row spacing is 25cm×20cm, the growth is good, and rice is planted in adjacent plots around. The soil type of the experimental site is loam, the organic matter content is 3wt%, and the soil is fertile. During the experiment, normal water management was performed. When the pesticide was applied, the rice was in the tillering stage, and the rice stem borer eggs were in the peak hatching stage to the low-age larvae stage. The stem and leaf spray method was adopted, and the experiment was carried out using an SX-MD16H electric sprayer (Zhongbao Green Agriculture Technology Group), with a flow rate of 1.2L / min, and the water source was irrigation water. The test results are shown in Table 6.

[0069] Insect population reduction rate = (number of insects before application - number of insects after application) / number of insects before application × 100%; Prevention effect = (insect population reduction rate of treatment group - insect population reduction rate of control group) / (1-insect population reduction rate of control group) × 100%.

[0070] Table 6 Field control results of suspension concentrate against rice stem borer in application examples

[0071] According to the test results in Table 6, it can be seen that the suspension concentrates in Application Examples 1 to 4 all have good control effects. After being diluted 2000 times, the control efficiency is all above 70%, and they are significantly better than 10wt% fluoxetine suspension concentrate and 5wt% emamectin benzoate suspension concentrate.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An insecticide composition, characterized in that: It includes fluoxetine amide and avermectin benzoate in a mass ratio of 20:1 to 1:

20.

2. The insecticide composition according to claim 1, characterized in that: The mass ratio of the fluoxetine amide to avermectin benzoate is 10:1 to 1:

10.

3. A pesticide preparation, characterized in that: The insecticide composition comprises the insecticide composition according to claim 1 or 2.

4. The pesticide formulation according to claim 3, characterized in that: The pesticide formulation also includes agriculturally acceptable adjuvants.

5. The pesticide formulation according to claim 4, characterized in that: The mass ratio of the insecticide composition to the auxiliary material is 1:99-9:

1.

6. The pesticide formulation according to claim 4, characterized in that: The auxiliary material includes at least one of an emulsifier, a dispersant, a wetting agent, a solvent, an antifreeze agent, a defoaming agent, a thickener, a disintegrant, a preservative or a filler.

7. The pesticide formulation according to any one of claims 3 to 6, characterized in that: The pesticide preparation comprises the following raw materials in percentage by weight: emulsifier 0-40%, dispersant 1%-10%, wetting agent 0-8%, solvent 5%-90%, antifreeze 0-10%, defoamer 0.1%-5%, thickener 0-10%, disintegrant 0-10%, preservative 0.1%-1%, filler 0.5%-10%, and the remainder is the insecticide composition.

8. Use of the insecticide composition according to claims 1 and 2 in controlling crop pests.

9. Use of the insecticide composition according to claim 8 in controlling crop pests, characterized in that: The crop pests include at least one of Lepidoptera pests or Tetranychus pests.

10. Use of the insecticide composition according to claim 9 in controlling crop pests, characterized in that: The lepidopteran pests include at least one of beet armyworm, diamondback moth, rice leaf roller, rice stem borer or fall armyworm; The Tetranychus pests include two-spotted spider mites.

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