Chlorfenapyr-containing acaricidal composition as well as preparation method and application thereof

Abstract

The invention relates to a chlorfenapyr-containing acaricidal composition as well as a preparation method and application thereof, and relates to the technical field of pesticides, the acaricidal composition comprises a first active component and a second active component, the first active component comprises chlorfenapyr, the second active component comprises acequinocyl, and the acaricidal composition is prepared from the first active component and the second active component. The mass ratio of the first active component to the second active component is (15: 1)-(1: 5). The acaricidal composition provided by the invention is reasonable in component, remarkable in synergistic effect, good in insecticidal effect, low in medication cost and safe to crops, can prevent and control mites such as tetranychus urticae, tetranychus cinnabarinus, panonychus citri and cotton spider mites, has a good prevention effect, and can delay the generation of drug resistance of pest mites.

Description

Technical Field

[0001] This application relates to the field of pesticide technology, and in particular to an acaricide composition containing chlorfenapyr, its preparation method and application. Background Technology

[0002] In the field of plant protection, chemical control technology has always been an important means of effectively controlling pests and diseases and ensuring a bumper harvest. Since the development of chlorfenapyr and dicofol, they have played an important role in agriculture due to their unique properties. Chlorfenapyr, developed by the American Cyano Corporation in 1985, is an insecticide, acaricide, and nematicide with a broad insecticidal spectrum and wide range of applications, and can be used to control various pests and mites on multiple crops. Dimethomorph, developed by DuPont in 1975, is a naphthoquinone contact (and stomach poison) acaricide and nematicide. Due to its low toxicity, safety, high efficiency, and unique mechanism of action, it is widely used abroad for controlling various mites on fruit trees and vegetables. With the development of agriculture, the requirements for pest and disease control are becoming increasingly stringent, and the rational use and development of pesticides have become key factors in ensuring agricultural production.

[0003] In the past, plant protection often relied on single pesticides to control mites. For example, chlorfenapyr was used to control various pests, including lepidopterans and homoptera, as well as mites. It works by being converted into insecticidal compounds by multifunctional oxidases within insects, acting on the mitochondria of insect cells to kill them. Another method involved using miticides like citrus pteridomastoides, spider mites, and leptospires. It was effective against the eggs, larvae, and nymphs of various mites, acting through contact and stomach poisoning. In addition, farmers would choose other types of acaricides based on experience and specific conditions, such as organophosphates, carbamates, and pyrethroids. While these conventional control methods could manage mite damage to some extent, long-term use has gradually revealed some problems.

[0004] Due to farmers' indiscriminate, excessive, and single-pesticide use during pest control, pesticide resistance levels in pests and diseases are rapidly increasing. The use of pesticides such as chlorfenapyr or tebufenozide alone leads to mites gradually developing resistance with increased application time and frequency, resulting in decreased pesticide effectiveness. To achieve the same control effect, farmers are forced to increase pesticide usage, which not only increases control costs but also puts greater pressure on the environment, thus requiring improvement. Summary of the Invention

[0005] In order to improve the insecticidal effect of pesticides, this application provides an acaricidal composition containing chlorfenapyr.

[0006] The present application provides an acaricide composition containing chlorfenapyr, its preparation method, and its application, using the following technical solution: In a first aspect, this application provides an acaricide composition containing chlorfenapyr, employing the following technical solution: A miticide composition containing chlorfenapyr, the miticide composition comprising a first active ingredient and a second active ingredient, the first active ingredient comprising chlorfenapyr, the second active ingredient comprising chlorfenapyrone, the mass ratio of the first active ingredient to the second active ingredient being 15:1 to 1:5.

[0007] By combining chlorfenapyr and miticide quinone, which have different mechanisms of action, the synergistic effect between the two is utilized to improve the overall acaricidal effect of the composition and broaden the acaricidal spectrum. This composition can effectively delay the development of pesticide resistance in mites, help reduce the number of times and amount of pesticides used in the field, thereby reducing pesticide costs, and shows good safety for crops.

[0008] Preferably, the mass ratio of the first active ingredient to the second active ingredient is 3:1 to 1:3.

[0009] By limiting the two active ingredients to the above-mentioned ratio range, chlorfenapyr and miticide quinone can better exert a synergistic effect when used together. This ratio range helps to further improve the overall acaricidal performance of the composition and shows better cost-effectiveness and crop compatibility in practical applications.

[0010] Preferably, the first and second active ingredients account for 1% to 90% of the total mass of the acaricide composition.

[0011] Preferably, the first and second active ingredients account for 20% to 30% of the total mass of the acaricide composition.

[0012] The acaricide composition was prepared according to the above mass ratio, ensuring that the active ingredient can reach and maintain an effective concentration against mites after application. This content range helps to fully leverage the synergistic effect of the combination of chlorfenapyr and miticide quinone, ensuring crop safety while achieving good control effect and reasonable pesticide cost.

[0013] Preferably, the acaricide composition further includes auxiliary components, which include several of the following: emulsifiers, dispersants, wetting agents, solvents, antifreeze agents, defoamers, thickeners, disintegrants, synergists, preservatives, and fillers.

[0014] The above-mentioned components are all commonly used or permitted ingredients in pesticide formulations, and there are no special restrictions. The specific ingredients and dosages are determined through experiments according to the formulation requirements.

[0015] By introducing a series of functional auxiliary ingredients, it is ensured that the active ingredients chlorfenapyr and chlorfenapyrone can form a stable physicochemical system in the formulation, which helps the drug solution to spread, penetrate and remain on the target surface better during application, thereby promoting the bioavailability and efficacy of the active ingredients and improving the control effect on mites.

[0016] Preferably, the emulsifier can be any emulsifier known in the field of pesticide formulation, and the emulsifier can be one or more of the following: phenethylphenol polyoxyethylene polyoxypropylene ether, alkylaryl polyoxyethylene polyoxypropylene ether, fatty acid polyoxyethylene ether, fatty alcohol polyoxyethylene ether, glycerol laurate polyoxyethylene ether, styrene-phenol polyoxyethylene ether, castor oil polyoxyethylene ether, alkylphenol polyoxypropylene polyoxyethylene ether, styrene-phenyl polyoxyethylene ether, alkylphenol polyoxyethylene ether, sorbitan fatty acid ester polyoxyethylene ether, fatty alcohol polyoxyethylene ether sulfonate, alkylphenol polyoxyethylene formaldehyde condensate, calcium dodecyl sulfonate, alkylphenol polyoxyethylene ether succinate monoester sulfonate, alkylphenol polyoxyethylene phosphate, and alkylphenol polyoxyethylene ether sulfonated succinate.

[0017] Preferably, the dispersant can be any dispersant known in the field of pesticide formulation, such as alkylphenol polyoxyethylene ether phosphate, alkylphenol polyoxyethylene ether sulfate, phenethylphenol polyoxyethylene ether phosphate, polyoxyethylene polyoxypropylene ether block copolymer, sodium lignosulfonate, sodium methylene dinaphthalene sulfonate (dispersant NNO), calcium lignosulfonate, polycarboxylate, sodium methylene dinaphthalene sulfonate, sodium methylene dimethylnaphthalene sulfonate, polyvinylpyrrolidone, alkylamide taurate, sodium alkyl naphthalene sulfonate condensate, and sodium methylene dinaphthalene sulfonate formaldehyde condensate.

[0018] Preferably, the wetting agent can be any wetting agent known in the field of pesticide formulation, such as sodium alkylnaphthalene sulfonate, sodium dodecyl sulfate, sodium secondary alkyl sulfate, sodium dodecylbenzene sulfonate, fatty alcohol polyethylene glycol ether sulfate, fatty alcohol polyoxyethylene ether, nonylphenol polyoxyethylene ether, sorbitan fatty acid ester polyoxyethylene ether, alkylnaphthalene formaldehyde condensate, alkylnaphthalene sulfonate, and other wetting agents.

[0019] Preferably, the solvent can be any solvent known in the field of pesticide formulation, such as water, methanol, ethanol, N-methylpyrrolidone, N,N-dimethylformamide, N,N-dimethylacetamide, tetrahydrofurfuryl alcohol, toluene, xylene, dimethyl sulfoxide, tetrahydrofuran, cyclohexanone, n-butanol, isopropanol, solvent oil No. 100, No. 150, No. 180, No. 200, and soybean oil.

[0020] Preferably, the antifreeze agent can be any antifreeze agent known in the field of pesticide formulation, and the antifreeze agent can be one or more of ethylene glycol, propylene glycol, glycerol, diethylene glycol, urea, and inorganic salts.

[0021] Preferably, the defoamer can be any defoamer known in the field of pesticide formulation, and the defoamer can be one or more of silicone compounds, organosilicon defoamers, epoxidized soybean oil, emulsified silicone oil, and fatty alcohols.

[0022] Preferably, the thickener can be any thickener known in the field of pesticide formulation, such as xanthan gum, polyvinyl alcohol, sodium alginate, gum arabic, magnesium aluminum silicate, or bentonite.

[0023] Preferably, the disintegrant can be any disintegrant known in the field of pesticide formulation, such as ammonium sulfate, sodium carboxymethyl starch, urea, low-substituted hydroxypropyl cellulose, croscarmellose sodium, croscarmellose, sodium alginate, sodium bicarbonate, and sodium chloride, or one or more of these.

[0024] Preferably, the filler can be any filler known in the field of pesticide formulation, such as glucose, silica, kaolin, diatomaceous earth, light calcium carbonate, heavy calcium carbonate, attapulgite, soluble starch, urea, maltose, sucrose, citric acid, potassium carbonate, sodium carbonate, and anhydrous sodium sulfate.

[0025] Preferably, the preservative can be any preservative known in the field of pesticide formulation, such as Kathon, sodium benzoate, benzoic acid, potassium sorbate, or formaldehyde.

[0026] Preferably, the synergist includes one or more of the following: organosilicon compounds: polyether-modified trisiloxanes (such as the Silwet series); plant oils: mineral oil, orange peel essential oil, eucalyptus essential oil, etc.; azone compounds: laurocapram; phosphate esters: alkylphenol polyoxyethylene ether phosphate, fatty alcohol polyoxyethylene ether phosphate (such as the MAP series), triphenyl phosphite; and polymers: polyacrylic acid compounds, maleic acid copolymers (such as the Geropon series).

[0027] Preferably, the acaricide composition is formulated as a suspension, an emulsion, or a microemulsion.

[0028] The above formulations enable the acaricide compositions to better suit the behavioral habits of target organisms and the crop growth environment through different physical forms and application methods, thereby optimizing the delivery efficiency and duration of action of the active ingredients, and providing formulation-level support and guarantee for achieving the expected mite control effect.

[0029] Secondly, this application provides a method for preparing an acaricide composition containing chlorfenapyr, using the following technical solution: A method for preparing an acaricide composition containing chlorfenapyr includes the following steps: mixing a first active ingredient, a second active ingredient, and an auxiliary ingredient, adding water to make up the balance, dispersing, and sieving to obtain an acaricide composition containing chlorfenapyr.

[0030] The composition prepared through the above steps can conform to the behavioral habits of target organisms and the crop growth environment, thereby improving the delivery efficiency and duration of action of active ingredients, and thus enhancing the control effect of mites.

[0031] Thirdly, this application provides an application of an acaricide composition containing chlorfenapyr, using the following technical solution: the application of an acaricide composition containing chlorfenapyr in the control of mites such as two-spotted spider mite, carmine spider mite, citrus spider mite, and cotton spider mite.

[0032] Through the synergistic effect of chlorfenapyr and miticide, the drug can exert its efficacy against the physiological characteristics of different mites. Its multi-site action helps to deal with complex mite populations that may appear in the field, providing crops with broader mite protection support.

[0033] In summary, this application includes at least one of the following beneficial technical effects: 1. By combining chlorfenapyr and miticide quinone, which have different mechanisms of action, the synergistic effect between the two is utilized to improve the overall acaricidal effect of the composition and broaden the acaricidal spectrum. This composition can effectively delay the development of pesticide resistance in mites, help reduce the number of times and amount of pesticides used in the field, thereby reducing pesticide costs, and showing good safety to crops.

[0034] 2. By limiting the dosage ratio of the two active ingredients, chlorfenapyr and miticide quinone can better exert a synergistic effect when used together. This ratio range helps to further improve the overall acaricidal performance of the composition and shows better cost-effectiveness and crop compatibility in practical applications. Detailed Implementation

[0035] This application discloses an acaricide composition containing chlorfenapyr, its preparation method, and its application. Unless otherwise specified, all raw materials used in this application are commercially available. The following detailed description, in conjunction with examples, further illustrates this application: Raw material description: Chlorfenapyr (CAS No.: 122453-73-0), purchased from Shandong Yijia Agricultural Chemical Co., Ltd.; Acaricide quinone (CAS No.: 57960-19-7), purchased from Jiangsu Dayi Biotechnology Co., Ltd.; Sodium dodecyl sulfate (CAS No.: 122453-73-0), purchased from Shandong Yijia Agricultural Chemical Co., Ltd. Sodium dibutylnaphthalenesulfonate (CAS No.: 151-21-3), bentonite (CAS No.: 25417-20-3), bentonite (CAS No.: HY-01), purchased from Haoyuan Bentonite Factory, Fangzi District, Weifang City; propylene glycol (CAS No.: 57-55-6), n-butanol (CAS No.: 71-36-3), Tween-60 (CAS No.: 9005-67-8), purchased from Langfang Qianyao Technology Co., Ltd.; cyclohexanone (CAS No.: 108-94-1), epoxidized soybean oil (CAS No.: 151-21-3). Purchased from Changzhou Senlang Chemical Co., Ltd. (CAS No.: 8013-07-8); Ethylene glycol (CAS No.: 107-21-1); Polyvinyl alcohol (CAS No.: 9002-89-5); Purchased from Changzhou Longheng Building Materials Technology Co., Ltd.; Formaldehyde (CAS No.: 50-00-0); Agricultural emulsion 1601, Agricultural emulsion 500, and Agricultural emulsion 600; Purchased from Xingtai Xinlanxing Technology Co., Ltd.; Xylene (CAS No.: 1330-20-7); Isopropanol (CAS No.: 67-63). -0), triphenyl phosphite (CAS No.: 101-02-0), 240 g / L chlorfenapyr suspension were purchased from Jiangsu Longdeng Chemical Co., Ltd., soybean oil (8001-22-7) was purchased from Shandong Huling New Materials Co., Ltd., xanthan gum (CAS No.: 11138-66-2) was purchased from Henan Juteng Chemical Products Co., Ltd., organosilicon defoamer SAG-630 was purchased from Guangzhou Huiwangcheng Chemical Co., Ltd., and sodium benzoate (CAS No.: 532-32-1).

[0036] First, the synergistic effect of the mixture of chlorfenapyr and tebufenozide on the indoor mites Tetranychus davidii and Tetranychus carmine was evaluated using the co-toxicity coefficient method. The test method was based on "NY / T 1154.12-2008 Guidelines for Indoor Bioassay of Pesticides - Insecticides - Part 12: Tetranychus Slide Immersion Method".

[0037] First, female adult mites are collected in the field and bred indoors for future use.

[0038] Cut double-sided tape into pieces about 2cm long and attach them to one end of a glass slide. Then, select female adult mites of similar physiological condition raised indoors and attach their backs to the double-sided tape, being careful not to stick the mite legs, antennae, or mouthparts. Place 30 mites per slide and put them in a container lined with a damp sponge. Cover the container and incubate at 25±1℃. After 2 hours, examine under a microscope. If any individuals are dead or injured, remove them and replace with 30 mites. Place the slide in the prepared solution and shake for 5 seconds, then remove it and absorb excess solution with absorbent paper. Place the slide in a white porcelain dish lined with a damp sponge and cover with a translucent film. Place the porcelain dish containing the treated mites in a temperature of 25±1℃ and a photoperiod L:D = (16, 8) h for rearing and observation.

[0039] The mortality of the test mites was checked 48 hours after treatment, and the total number of mites and the number of dead mites were recorded. Each treatment was repeated 4 times, with the treatment sprayed with water serving as a blank control. The experimental data were statistically processed using DPS software to calculate the correlation coefficient, toxicity regression equation, lethal median concentration, etc., and the co-toxicity coefficient was calculated using the Sun Yunpei method.

[0040] The combined toxicity of the mixed formulation was expressed using Sun Yunpei's co-toxicity coefficient method: Actual toxicity index Theoretical toxicity index Cotoxicity coefficient The co-toxicity coefficient method was used to evaluate the combined effects of the compositions provided in this application against *Tetranychus two-spotted* and *Tetranychus carmine*. A co-toxicity coefficient >120 indicated a synergistic effect, a co-toxicity coefficient between 80 and 120 indicated an additive effect, and a co-toxicity coefficient <80 indicated an antagonistic effect. Tables 1 and 2 below show the results of the indoor combined effects of the mixture of chlorfenapyr and miticide quinone on *Tetranychus two-spotted* and *Tetranychus carmine*, respectively.

[0041] Table 1. Results of the indoor combined effect of chlorfenapyr and tebufenozide on two-spotted spider mites. Table 1 shows that when chlorfenapyr and miticide are mixed in a ratio of 15:1 to 1:5, they exhibit a certain synergistic effect on two-spotted spider mites in indoor environments. In particular, when the ratio of chlorfenapyr to miticide is 3:1, the co-toxicity coefficient is the largest and the synergistic effect is the most significant.

[0042] Table 2 Results of the indoor combined effect of chlorfenapyr and tebufenozide mixture on Tetranychus carmine. Table 2 shows that when chlorfenapyr and miticide are mixed in a ratio of 15:1 to 1:5, they exhibit a certain synergistic effect on Tetranychus carmine in indoor environments. In particular, when the ratio of chlorfenapyr to miticide is 2:1, the co-toxicity coefficient is the largest and the synergistic effect is the most significant.

[0043] The present invention will be further described below with reference to the embodiments.

[0044] Example 1 The first active ingredient is chlorfenapyr, the second active ingredient is chlorfenapyrone, and the auxiliary ingredients include wetting agents, thickeners, antifreeze agents, and solvents. The wetting agents are sodium dodecyl sulfate and sodium alkyl naphthalene sulfonate (sodium dibutylnaphthalene sulfonate), the thickener is bentonite, the antifreeze agent is propylene glycol, and the solvent is n-butanol. The acaricide composition containing chlorfenapyr comprises the following components in weight percentage: chlorfenapyr 15%, chlorfenapyrone 5%, sodium dodecyl sulfate 4%, sodium dibutylnaphthalene sulfonate 3%, bentonite 1%, propylene glycol 4%, n-butanol 1%, and deionized water to 100% by weight. The above raw materials are mixed, sheared and dispersed at 2000 rpm for 30 min, milled using a sand mill, and filtered through a 100-mesh filter to obtain a 20% chlorfenapyr·chlorfenapyrone suspension.

[0045] Example 2 The first active ingredient is chlorfenapyr, the second active ingredient is chlorfenapyrone, and the auxiliary ingredients include emulsifiers, solvents, defoamers, antifreeze agents, thickeners, and preservatives. The emulsifier is dehydrated sorbitan fatty acid ester polyoxyethylene ether (Tween-60), the solvent is cyclohexanone, the defoamer is epoxidized soybean oil, the antifreeze agent is ethylene glycol, the thickener is polyvinyl alcohol, and the preservative is formaldehyde. The acaricide composition containing chlorfenapyr comprises the following components in the following weight percentages: chlorfenapyr 10%, chlorfenapyrone 10%, Tween-60 5%, cyclohexanone 4%, epoxidized soybean oil 2%, ethylene glycol 2%, polyvinyl alcohol 5%, formaldehyde 1.5%, and deionized water to 100% by weight. The above raw materials are mixed and stirred at 10,000 rpm for 15 minutes, then filtered through a 100-mesh sieve to obtain a 20% chlorfenapyr·chlorfenapyr aqueous emulsion.

[0046] Example 3 The first active ingredient is chlorfenapyr, the second active ingredient is chlorfenapyrone, and the auxiliary ingredients include emulsifiers, solvents, and synergists. The emulsifiers are alkylphenol polyoxyethylene ether (agricultural emulsion 1601), calcium dodecyl sulfonate (agricultural emulsion 500), and phenethylphenol polyoxyethylene ether (agricultural emulsion 600). The solvents are cyclohexanone, xylene, and isopropanol. The synergist is triphenyl phosphite. The acaricide composition containing chlorfenapyr comprises the following components in the following weight percentages: chlorfenapyr 20%, chlorfenapyrone 10%, agricultural emulsion 1601 5%, agricultural emulsion 500 6%, agricultural emulsion 600 5%, cyclohexanone 4%, xylene 2%, isopropanol 3%, triphenyl phosphite 1%, and deionized water to 100% by weight. After mixing and dissolving chlorfenapyr, miticide quinone, agricultural emulsion 1601, agricultural emulsion 500, agricultural emulsion 600, cyclohexanone, xylene, isopropanol, and triphenyl phosphite, deionized water was added to make up the remaining volume. While adding the deionized water, the mixture was stirred at 500 rpm and the addition was completed within 30 minutes. The mixture was then stirred at 200 rpm for 20 minutes. The mixture was then filtered through a 50-mesh screen to obtain a 30% chlorfenapyr·miticide quinone microemulsion.

[0047] Comparative Example 1 Comparative Example 1 used commercially available 240g / L chlorfenapyr suspension.

[0048] Comparative Example 2 Comparative Example 2 used 15% miticide quinone water emulsion.

[0049] Preparation of 15% acaricide emulsion The active ingredient is acaricide quinone. Auxiliary ingredients include solvent, emulsifier, antifreeze, thickener, defoamer, and preservative. The solvent is soybean oil; the emulsifiers are calcium dodecyl sulfate (agricultural emulsion 500) and phenethylphenol polyoxyethylene ether (agricultural emulsion 600); the antifreeze is propylene glycol; the thickener is xanthan gum; the defoamer is silicone defoamer (SAG-630); and the preservative is sodium benzoate. A 15% acaricide quinone aqueous emulsion comprises the following components by weight percentage: acaricide quinone 15%, soybean oil 12%, agricultural emulsion 500 3%, agricultural emulsion 600 3%, propylene glycol 4%, xanthan gum 1%, silicone defoamer SAG-630 1%, sodium benzoate 1%, and deionized water to 100% by weight. The above raw materials are mixed and stirred at 10,000 rpm for 15 minutes, then filtered through a 100-mesh sieve to obtain the 15% acaricide quinone aqueous emulsion.

[0050] Comparative Example 3 Comparative Example 3 used water as a control.

[0051] Performance testing Field trials were conducted to verify the control effect of the samples in the field.

[0052] Experimental Methods: Field efficacy tests were conducted on the strawberry two-spotted spider mite using the samples prepared in Examples 1-3 and Comparative Examples 1-3. Each plot was 10 square meters, with four replicates per treatment. The plots were arranged in a randomized block design. Conventional spraying was used for application. One compound leaf was marked on each strawberry plant. The spider mite population was assessed before application and again at 3, 5, 7, 15, and 25 days after application. The mite population reduction rate and the control effect of the treatment were calculated. The experimental results are shown in Tables 3 and 4 below.

[0053] PT represents the mite population reduction rate in the drug-treated area; CK represents the mite population reduction rate in the blank control area.

[0054] Table 3. Field efficacy trial results of the combination of chlorfenapyr and tebufenozide for controlling two-spotted spider mite on strawberries. Table 4. Results of field efficacy trials of the combination of chlorfenapyr and tebufenozide for controlling two-spotted spider mite on strawberries. Tables 3 and 4 show that when the effective ingredient dosage in Examples 1-3 was 150 mg / kg, the control efficacy against strawberry two-spotted spider mites at 3, 5, 7, 15, and 25 days after application was higher than that of the single-agent control in the comparative examples. This indicates that the combination of chlorfenapyr and tebufenozide has a synergistic effect. Furthermore, all tested agents were safe for strawberry growth during the experiment, with no phytotoxicity observed and no harm to natural enemies.

[0055] In summary, the acaricide composition containing chlorfenapyr of the present invention has a significant synergistic effect. Compared with single agents, it can effectively reduce the amount of pesticide used, lower the cost of use, protect the environment, and delay the development of pesticide resistance in mites.

[0056] This specific embodiment is merely an explanation of this application and is not intended to limit it. Based on the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of this application. The technical scope of this application is not limited to the contents of the specification but must be determined according to the scope of the claims.

Claims

1. An acaricide composition containing chlorfenapyr, characterized in that: The acaricide composition includes a first active ingredient and a second active ingredient. The first active ingredient includes chlorfenapyr, and the second active ingredient includes chlorfenapyrone. The mass ratio of the first active ingredient to the second active ingredient is 15:1 to 1:

5.

2. The acaricide composition containing chlorfenapyr according to claim 1, characterized in that: The mass ratio of the first active ingredient to the second active ingredient is 3:1 to 1:

3.

3. The acaricide composition containing chlorfenapyr according to claim 1, characterized in that: The first and second active ingredients account for 1% to 90% of the total mass of the acaricide composition.

4. The acaricide composition containing chlorfenapyr according to claim 3, characterized in that: The first and second active ingredients account for 20% to 30% of the total mass of the acaricide composition.

5. The acaricide composition containing chlorfenapyr according to claim 1, characterized in that: The acaricide composition further includes auxiliary components, which include several of the following: emulsifiers, dispersants, wetting agents, solvents, antifreeze agents, defoamers, thickeners, disintegrants, synergists, preservatives, and fillers.

6. The acaricide composition containing chlorfenapyr according to claim 1, characterized in that: The acaricide composition is formulated as a suspension, an emulsion, or a microemulsion.

7. A method for preparing an acaricide composition containing chlorfenapyr as described in any one of claims 1-6, characterized in that: Includes the following steps: The first active ingredient, the second active ingredient, and the auxiliary ingredients are mixed, water is added to make up the balance, the mixture is dispersed, and sieved to obtain an acaricide composition containing chlorfenapyr.

8. The application of an acaricide composition containing chlorfenapyr prepared by the method described in claim 7 in the control of mites such as two-spotted spider mite, carmine spider mite, citrus spider mite, and cotton spider mite.

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