Pesticide composition and application thereof

Abstract

The invention belongs to the technical field of pesticides, and relates to a pesticide composition and application thereof. The pesticide composition comprises an active component A and an active component B, the active component A is a compound shown in a formula (I), and the active component B is one or more selected from acaricides. The pesticide composition can effectively prevent and control multiple phytophagous pest mites, especially two-spotted spider mites, has a synergistic effect in a certain proportion range, reduces the use cost, reduces the dosage, prolongs the lasting period and delays the development of drug resistance.

Description

[0001] The present application is a divisional application of the application No.CN2024108154139, the application date is 20240624, and the invention name is "a pesticide composition and its application". TECHNICAL FIELD

[0002] The present application belongs to the field of pesticides, and particularly relates to a pesticide composition and its application. BACKGROUND

[0003] Phytophagous mites are important pests of many agricultural crops worldwide, and if not controlled below economic thresholds, they can pose a threat to the production of food, feed, and fiber. In particular, mites of the families Tetranychidae, Tenuipalpidae, Cheyletidae, and Eriophyidae are important pests that directly feed on plants or transmit plant pathogens and viruses, damaging crops.

[0004] Leaf mites are an important group of agricultural pests, and about 100 species in this group are difficult to identify due to their small size. Global changes, pesticide resistance, and planting systems have made the damage caused by leaf mites increasingly severe. Common hosts of leaf mites include many economic crops such as Poaceae, Malvaceae, Leguminosae, Solanaceae, and Cucurbitaceae. We found that the most serious leaf mite infestation occurred in the genus Tetranychus, with the most common being Tetranychus truncatus, followed by Tetranychus pueraricola, Tetranychus kanzawai, Tetranychus urticae(red), and Tetranychus urticae(green). Important agricultural pests are particularly prone to developing pesticide resistance due to their short reproductive cycle, large reproductive output, low mobility, and high degree of inbreeding.

[0005] For a long time, chemical control methods have been used to control leaf mites in production, and the extensive use of chemical pesticides has made leaf mites one of the most resistant pests. Reasonable chemical pesticide compounding or mixing has the positive characteristics of expanding the insecticidal spectrum, improving the control effect, extending the application period, reducing the amount of pesticide used, reducing pesticide damage, reducing residues, and delaying the development of pest resistance. SUMMARY

[0006] To solve the above problems in the prior art, the present application provides a pesticide composition and its application. The pesticide composition can effectively control a variety of phytophagous mites, exhibit a synergistic effect within a certain proportion range, expand the mite-killing spectrum, reduce the use cost, reduce the amount of pesticide used, extend the effective period, and delay the development of pesticide resistance.

[0007] To solve the above problems, the present application provides the following technical solution: a pesticide composition, which comprises active ingredient A and active ingredient B, wherein the active ingredient A is a compound represented by formula (I):

[0008] the active ingredient B is selected from one or more of the following groups of acaricides: B1 heterocycles, B2 tetronic acids, B3 phenylacetic acid amides, B4 oxazoles, B5 pyrazole amides, B6 biphenyl hydrazines, B7 antibiotics, B8 organotins, B9 tetrazines, B 10 thiazolidines, B 11 sulfoxides, B 12 thioureas, B 13 sulfoxides, B 14 bridged ring amines, B 15 quinolines, B 16 quinazolines, B 17 pyridazinones, B 18 benzoyl ureas, B 19 methoxy acrylates, B 20 benzoic acid esters, B 21 pyrazoles, B 22 pyrroles, B 23 pyrimidines, B 24 naphthoquinones, B 25 pyridazines, B 26 pyrethrins, B 27 biological sources, B 28 non-systemic organic nitrogen compounds, B 29 other groups;

[0009] Further, the active ingredient B is selected from:

[0010] B1 heterocycles: chinomethionat, etoxin;

[0011] B2 tetronic acids: spirotetramat, spirodiclofen, spiromesifen, spiromate, tetranic acid, tetradifon;

[0012] B3 phenylacetic acid amides: cyflumetofen;

[0013] B4 oxazoles: diafenthioun, fluxametamide, isocycloseram;

[0014] B5 pyrazole amides: tebufenpyrad, clofentezine, pyflubumide, ethoxyfen, sulfoxypyrazone;

[0015] B6 biphenyl hydrazines: bifenazate;

[0016] B7 antibiotics: abamectin, emamectin benzoate, liuyangmycin, huaguangmycin, milbemycin;

[0017] B8 organotins: azocyclotin, fenbutatin oxide;

[0018] B9 tetrazines: clofentezine, fluencarzone;

[0019] B10 thiazolidinones: clofentazine;

[0020] B 11 sulfites: propargite;

[0021] B 12 thioureas: butocarboxim, diafenthiuron;

[0022] B 13 sulfoxides: flupentiofenox;

[0023] B 14 bridged amines: acynonapyr;

[0024] B 15 quinolines: flometoquin;

[0025] B 16 quinazolines: fenazaquin;

[0026] B 17 pyridazinones: pyridaben;

[0027] B 18 benzoylureas: hydroprene, flufenoxuron, flucycloxuron, bistrifluron;

[0028] B 19 methoxyacrylates: pyridaben, flumiclorac, flumetover;

[0029] B 20 benzoates: amidoflumet;

[0030] B 21 pyrazoles: acetoprole, vaniliprole, fipronil;

[0031] B 22 pyrroles: clofentezine, chlorfenapyr;

[0032] B 23 pyrimidines: pyridifen;

[0033] B 24 naphthoquinones: milbactoquin;

[0034] B 25 pyridazines: pyridazinone;

[0035] B 26 pyrethroids: lambda-cyhalothrin, deltamethrin, cypermethrin, bifenthrin, flubrocythrinate, bromofenprox;

[0036] B 27 biological sources: matrine, veratrine, azadirachtin, pyrethrum, rotenone, sabinene, oleuropein;

[0037] B 28 Non-systemic organonitrogens: amitraz, formetozate;

[0038] B 29 Other: at least one of mivorilaner, modoflaner, tigolaner, umifoxolaner, flonicamid, spinetoram, an insecticidal and acaricidal agent of mineral oil.

[0039] Further, the active ingredient B is selected from any one of spirotetramat, spiromesifen, etoxazole, clofentazine, cynamid, bifenazate, abamectin, clofentezine, hexythiazox, diafenthiuron, hydroprene, spirodiclofen, flufenoxuron, clofentezine, abamectin, amitraz, pyridaben, flonicamid.

[0040] In the present application, the mass ratio of the active ingredient A and the active ingredient B is not particularly limited, and is preferably 200:1 to 100:1 or any value between the above values;

[0041] Further, the mass ratio of the active ingredient A and the active ingredient B is 1:100 to 100:1;

[0042] Further, the mass ratio of the active ingredient A and the active ingredient B is 80:1 to 1:80;

[0043] Further, the mass ratio of the active ingredient A and the active ingredient B is 50:1 to 1:50;

[0044] Further preferably, the mass ratio of the active ingredient A and the active ingredient B is 45:1 to 1:45;

[0045] In a specific embodiment, the present application also lists the following specific combinations of active ingredient A and active ingredient B:

[0046]

[0047]

[0048] Further, the specific combination of active ingredient A and active ingredient B:

[0049] Component A Component B Preferred mass ratio Formula (I) Fenpyroximate 10:1～50:1 Formula (I) Spirodiclofen 20:1～1:20 Formula (I) Spiromesifen 20:1～1:20 Formula (I) Etoxazole 16:1～1:16 Formula (I) Ethoxamicaid 12:1～1:10 Formula (I) Clofentazine 16:1～1:10 Formula (I) Hexythiazox 20:1～1:6 Formula (I) Propargite 60:1～1:2 Formula (I) Avermectin 60:1～1:10 Formula (I) Moxidectin 20:1～1:20 Formula (I) Fenbutatin-oxide 24:1～1:12 Formula (I) Clofentezine 4:1～1:18 Formula (I) Chinomethionat 1:1～1:30 Formula (I) Bifenthrin 12:1～1:8 Formula (I) Spiromesifen 15:1～1:15 Formula (I) Pyridaben 15:1～1:30 Pesticide composition Preferred content sum 30:1～1:30 Compound of formula (I) + fenpyroximate 2 to 50 wt% 20:1～1:20 Compound of formula (I) + spirodiclofen 10 to 60 wt% 8:1～1:30 Compound of formula (I) + spiromesifen 2 to 80 wt% 20:1～1:20

[0050] Further, the specific combination of active ingredient A and active ingredient B:

[0051]

[0052]

[0053] Further, the sum of the content of the sex component A and the active ingredient B in the pesticide composition is 1-95wt% based on 100wt% of the total weight of the pesticide composition;

[0054] Further, the sum of the content of the sex component A and the active ingredient B in the pesticide composition is 1-90wt%;

[0055] In a preferred embodiment, the sum of the content of the compound of formula (I) and the active ingredient B in the pesticide composition is:

[0056]

[0057]

[0058] Further, the sum of the content of the compound of formula (I) and the active ingredient B in the pesticide composition is:

[0059] Compound of formula (I) + etoxazole 5 to 80 wt% Compound of formula (I) + etoxazole 5 to 80 wt% Compound of formula (I) + ethoxamicaid 5 to 75 wt% Compound of formula (I) + clofentazine 5 to 60 wt% Compound of formula (I) + clofentazine 5 to 80 wt% Compound of formula (I) + avermectin 5 to 60 wt% Compound of formula (I) + moxidectin 1 to 30 wt% Compound of formula (I) + fenbutatin-oxide 5 to 80 wt% Compound of formula (I) + clofentezine 5 to 40 wt% Compound of formula (I) + chinomethionat 5 to 80 wt% Compound of formula (I) + bifenthrin 20 to 80 wt% Compound of formula (I) + spiromesifen 5 to 80 wt% Compound of formula (I) + pyridaben 5 to 60 wt% Compound of formula (I) + spiromesifen 10 to 50 wt% Compound of formula (I) + clofentazine 100 to 50 wt% Compound of formula (I) + ethyl spirodiclofen 5 to 60 wt% Compound of formula (I) + clofentazine 5 to 85 wt% Compound of formula (I) + spiromesifen 10 to 50 wt% ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

[0060] Further, the pesticide composition further comprises an agricultural acceptable auxiliary ingredient in addition to the active ingredient, and the auxiliary ingredient is selected from one or more of wetting agents, dispersants, emulsifiers, thickening agents, disintegrating agents, antifreezing agents, antifoaming agents, solvents, preservatives, stabilizers, synergists or carriers;

[0061] The wetting agent is selected from one or more of alkyl benzene sulfonate, alkyl naphthalene sulfonate, lignin sulfonate, sodium dodecyl sulfate, dioctyl sodium sulfosuccinate, alpha olefin sulfonate, alkyl phenol polyoxyethylene ether, castor oil polyoxyethylene ether, alkyl phenol ethoxylate, fatty alcohol ethoxylate, fatty alcohol polyoxyethylene ether sodium sulfate, silkworm excrement, soap nut powder, soapberry powder, SOPA, detergent, emulsifier 2000 series and wetting penetrant F; and / or

[0062] The dispersant is selected from one or more of lignin sulfonate, alkyl naphthalene sulfonate formaldehyde condensate, naphthalene sulfonate, tristyryl phenol ethoxylate phosphate, fatty alcohol ethoxylate, alkyl phenol polyoxyethylene ether, alkyl phenol polyoxyethylene ether methyl ether condensate sulfate, fatty amine polyoxyethylene ether, glycerol fatty acid ester polyoxyethylene ether, polycarboxylate, polyacrylate, phosphate, EO-PO block copolymer and EO-PO graft copolymer; and / or

[0063] The emulsifier is selected from one or more of calcium dodecyl benzene sulfonate, alkyl phenol formaldehyde resin polyoxyethylene ether, phenethyl phenol polyoxyethylene polyoxypropylene ether, fatty alcohol ethylene oxide-propylene oxide copolymer, styryl phenol polyoxyethylene ether, castor oil polyoxyethylene ether and alkyl phenol ether phosphate; and / or

[0064] The thickening agent is selected from one or more of xanthan gum, organobentonite, gum arabic, sodium alginate, magnesium aluminum silicate, carboxymethyl cellulose, and white carbon black; and / or

[0065] The disintegrant is selected from one or more of sodium sulfate, ammonium sulfate, aluminum chloride, sodium chloride, ammonium chloride, bentonite, glucose, sucrose, starch, cellulose, urea, sodium carbonate, sodium bicarbonate, citric acid, and tartaric acid; and / or

[0066] The antifreezing agent is selected from one or more of alcohols, alcohol ethers, chlorinated hydrocarbons, and inorganic salts; and / or

[0067] The antifoaming agent is selected from one or more of C 10 -C 20 saturated fatty acid compounds, silicone oils, silicone compounds, one or more of C8-C 10 fatty alcohols; and / or

[0068] The solvent is selected from one or more of benzene, toluene, xylene, mesitylene, methanol, ethanol, isopropanol, n-butanol, dimethyl sulfoxide, dimethylformamide, cyclohexanone, alkylene carbonate, diesel oil, solvent naphtha, vegetable oil, vegetable oil derivatives, and water; and / or

[0069] The preservative is selected from one or more of propionic acid, sodium propionate, sorbic acid, sodium sorbate, potassium sorbate, benzoic acid, sodium benzoate, sodium p-hydroxybenzoate, methyl p-hydroxybenzoate, capsol, and 1,2-benzisothiazolin-3-one; and / or

[0070] The stabilizer is selected from one or more of disodium hydrogen phosphate, oxalic acid, succinic acid, adipic acid, borax, 2,6-di-tert-butyl-p-cresol, triethanolamine oleate, epoxidized vegetable oil, kaolin, bentonite, attapulgite, white carbon black, talc, montmorillonite, and starch; and / or

[0071] The synergist is selected from synergistic phosphorus, synergistic ether; and / or

[0072] The carrier is selected from one or more of ammonium salts, ground natural minerals, ground artificial minerals, silicates, resins, waxes, solid fertilizers, water, organic solvents, mineral oils, vegetable oils, and vegetable oil derivatives;

[0073] The carrier is a solid carrier or a liquid carrier;

[0074] The solid carrier includes minerals, plants, synthetic fillers, and inorganic salts;

[0075] The minerals include silicates, carbonates, sulfates, oxides.

[0076] The silicates are selected from at least one of kaolin, meerschaum, nacrite, montmorillonite, mica, vermiculite, pyrophyllite, talc; the carbonates are selected from at least one of calcium carbonate or dolomite; the sulfates are selected from at least one of ammonium sulfate, sodium sulfate, calcium sulfate; the oxides are selected from at least one of quicklime, magnesia, diatomite; the plants are selected from at least one of citrus pulp, corn cob core, chaff powder, rice husk, soybean straw powder, tobacco powder, walnut shell, sawdust; the synthetic fillers are selected from at least one of precipitated calcium carbonate hydrate, precipitated calcium carbonate, white carbon black; the inorganic salts are selected from at least one of potassium chloride or sodium chloride.

[0077] The liquid carrier comprises water and an organic solvent;

[0078] The water is preferably deionized water;

[0079] The organic solvent is selected from at least one of aromatic hydrocarbons, chlorinated aliphatic hydrocarbons, aliphatic hydrocarbons, alcohols, ethers, ketones, special solvents, vegetable oils and methylated vegetable oils;

[0080] The aromatic hydrocarbons are selected from at least one of benzene, xylene, trimethylbenzene, toluene; the chlorinated aliphatic hydrocarbons are selected from at least one of trichloromethane, dichloromethane, chloroform, carbon tetrachloride and polychloroethane; the aliphatic hydrocarbons are selected from at least one of petroleum distillate, cyclohexane, light mineral oil and paraffin wax; the alcohols are selected from at least one of methanol, ethanol, isopropanol, butanol, isobutanol, ethylene glycol, propylene glycol, glycerol, fatty alcohol; the ethers are selected from at least one of propylene glycol ethyl ether, propylene glycol methyl ether, petroleum ether; the ketones are selected from at least one of acetone, cyclohexanone, isofuroleone, N-methyl-pyrrolidone, N-octylpyrrolidone; the special solvents are selected from at least one of dimethylformamide, dimethyl sulfoxide, polyethylene glycol, hexanitrile; the vegetable oils are selected from at least one of peanut oil, soybean oil, flaxseed oil, castor oil, rapeseed oil; the methylated vegetable oils are selected from at least one of methyl ester of vegetable oil acid, methyl ester of animal oil acid, methyl laurate, methyl stearate, methyl tetradecanoate, methyl hexadecanoate, methyl octanoate, methyl octadecanoate, methyl coconut oil acid, mixed fatty acid methyl ester;

[0081] Further, the pesticide composition can be prepared into an agriculturally permissible formulation form selected from solid formulations and / or liquid formulations;

[0082] The solid formulations include powders, granules, spherules, tablets, strips, wettable powders, oil-dispersible powders, emulsifiable powders, water-dispersible granules, emulsion granules, water-dispersible tablets, soluble powders, soluble tablets or soluble granules;

[0083] The liquid preparation includes soluble liquid, soluble gel, oil, film oil, emulsion, latex, dispersible liquid, paste, water emulsion, oil emulsion, microemulsion, lipid suspension, microcapsule suspension, oil suspension, dispersible oil suspension, suspension emulsion, microcapsule suspension-suspension, microcapsule suspension-water emulsion or microcapsule suspension-suspension emulsion;

[0084] Further, the solid preparation is selected from wettable powder, water dispersible granule, soluble granule; the liquid preparation is selected from emulsion, water emulsion, suspension;

[0085] The preparation method of the suspension agent is as follows: according to the formula proportion of the embodiment, the effective component, the surfactant and other functional additives are sequentially placed in a reaction kettle, mixed uniformly with water, sheared at high speed, wet sand ground, and finally filtered to obtain the suspension agent product.

[0086] The preparation method of the emulsion is as follows: according to the formula proportion of the embodiment, the effective component is put into the carrier, and the surfactant and other functional additives are added and mixed uniformly in the stirring kettle to obtain the emulsion product.

[0087] The preparation method of the water emulsion is as follows: according to the formula proportion of the embodiment, the effective component is dissolved in the solvent to add the emulsifier to form a uniform oil phase, and the deionized water and the antifreeze agent are mixed together to form a uniform water phase; under high-speed shearing, the oil phase is added to the water phase to form the water emulsion product.

[0088] The preparation method of the microemulsion is as follows: according to the formula proportion of the embodiment, the effective component, the solvent, the emulsifier and the like are mixed uniformly to obtain an oil phase, the antifreeze agent and water are mixed uniformly to obtain a water phase, the oil phase is added to the water phase under stirring to mix uniformly, shearing is continued for 10 minutes, and the defoaming agent is added to mix uniformly to obtain small droplets with an oil phase particle of 0.01-0.1 μm, thereby obtaining the microemulsion product.

[0089] The preparation method of the wettable powder is as follows: according to the formula proportion of the embodiment, the effective component is added to the carrier, and the surfactant and other functional additives are added and mixed, and then the mixture is air-ground to obtain the wettable powder product.

[0090] The application of a pesticide composition in the prevention and control of phytophagous mites; according to the prevention and control method of the application, pests, mites and the like can be prevented and controlled more safely with less amount of pesticide; the harmful organism prevention and control agent composition of the application can be applied to the prevention and control method of harmful organisms, in particular the prevention and control method of the application. The harmful organism prevention and control agent composition of the application can be particularly suitable for the insecticidal and acaricidal use in agriculture and horticulture.

[0091] Further, the phytophagous mites are Tetranychidae, Eriophyidae and / or Cheyletidae mites;

[0092] Further, the phytophagous mites are Tetranychidae mites.

[0093] Further, the leaf mite is: Tetranychus cinnabarinus, Tetranychus citri, Tetranychus urticae Koch;

[0094] Further, the leaf mite is: Tetranychus urticae Koch;

[0095] Further, the pesticide composition and / or its preparation are applied to the pests or the medium where the pests grow in an effective dose.

[0096] The beneficial effects of the present application:

[0097] (1) The composition of the present application shows synergistic effect within the ratio range, the acaricidal effect is significantly improved compared with single agent, and has good quick-acting property and persistence;

[0098] (2) The effective components of the composition of the present application do not have cross-resistance problem, the different action modes and mechanisms of the pests are reasonably mixed, which can delay the generation of pest resistance and reduce the pesticide use amount;

[0099] (3) It is environment-friendly, safe and efficient, and has great economic and social benefits in popularization and application. DETAILED DESCRIPTION

[0100] In order to make the technical scheme, purpose and advantages of the present application clearer and more apparent, the present application is described in the following specific embodiments, but the present application can be realized in various forms and should not be limited by the embodiments described here.

[0101] Preparation example:

[0102] Preparation example 1:

[0103] 28% compound of formula (I)·bifenazate suspension (7:21)

[0104] 7% compound of formula (I), 21% bifenazate, 1% fatty alcohol polyoxyethylene ether, 0.5% alkylphenol polyoxyethylene ether, 3% phenylethyl phenol polyether phosphate ester salt, 3% alkylaryl polyoxyethylene polyoxypropylene, 1% magnesium aluminum silicate, 0.2% xanthan gum, 0.1% methylisothiazolinone, 5% ethylene glycol, 0.4% silicone defoaming agent, deionized water to make up the balance;

[0105] Preparation method: according to the proportion of the embodiment formula, the effective components, surfactants and other functional additives are sequentially placed in a reaction kettle, mixed with water, sheared at high speed, wet sand ground, and finally filtered to obtain the suspension product.

[0106] Preparation example 2:

[0107] 25% compound of formula (I)·ethomethoxazole suspension (15:10)

[0108] 15% of the compound of formula (I), 10% of etoxazole, 1% of dioctyl sodium sulfosuccinate, 4.5% of fatty alcohol polyoxyethylene ether phosphate, 1.5% of sodium polycarboxylate, 1% of magnesium aluminum silicate, 0.2% of xanthan gum, 0.01% of gum arabic, 0.1% of methylisothiazolinone, 5% of glycerol, 0.5% of silicone antifoaming agent, deionized water to make up the balance;

[0109] Preparation method: same as Preparation Example 1.

[0110] Preparation Example 3:

[0111] 21% of the compound of formula (I)·tetrasulpheton suspension (3:18)

[0112] 3% of the compound of formula (I), 18% of tetrasulpheton, 3% of phenylethyl alcohol polyether phosphate, 1% of sodium polycarboxylate, 4% of alkyl aryl polyoxyethylene polyoxypropylene ether, 1% of magnesium aluminum silicate, 0.25% of xanthan gum, 0.1% of methylisothiazolinone, 5% of ethylene glycol, 0.4% of silicone antifoaming agent, deionized water to make up the balance;

[0113] Preparation method: same as Preparation Example 1.

[0114] Preparation Example 4:

[0115] 25% of the compound of formula (I)·butoxycarboxim suspension (10:15)

[0116] 10% of the compound of formula (I), 15% of butoxycarboxim, 2% of phenylethyl alcohol polyether phosphate, 1% of naphthalene sulfonate formaldehyde condensate, 1.5% of fatty amine polyoxyethylene ether, 0.5% of sodium polycarboxylate, 1% of magnesium aluminum silicate, 0.2% of carboxymethyl cellulose, 0.05% of sodium sorbate, 5% of ethylene glycol, 0.4% of silicone antifoaming agent, deionized water to make up the balance;

[0117] Preparation method: same as Preparation Example 1.

[0118] Preparation Example 5:

[0119] 20% of the compound of formula (I)·spirodiclofen suspension (9:11)

[0120] 9% of the compound of formula (I), 11% of spirodiclofen, 2% of phenylethyl alcohol polyether phosphate, 1% of fatty amine polyoxyethylene ether, 1.5% of sodium polycarboxylate, 1% of naphthalene sulfonate, 0.1% of xanthan gum, 0.2% of carboxymethyl cellulose, 0.05% of sodium sorbate, 5% of ethylene glycol, 0.4% of silicone antifoaming agent, deionized water to make up the balance;

[0121] Preparation method: same as Preparation Example 1.

[0122] Preparation Example 6:

[0123] 16% compound of formula (I) + spirotetramat SC (12:4)

[0124] 12% compound of formula (I), 4% spirotetramat, 2.5% sodium dodecyl sulfate, 1% naphthalene sulfonate formaldehyde condensate, 3% styrene phenol polyoxyethylene ether phosphate, 1% magnesium aluminum silicate, 0.02% xanthan gum, 1% gum arabic, 5% ethylene glycol, 0.02% potassium benzoate, 0.4% silicone oil, deionized water to make up the balance;

[0125] Preparation method: same as Preparation Example 1.

[0126] Preparation Example 7:

[0127] 30% compound of formula (I) + ethyl acecarb 5 SC (18:12)

[0128] 18% compound of formula (I), 12% ethyl acecarb 5, 2.5% sodium dodecyl sulfate, 1% naphthalene sulfonate formaldehyde condensate, 3% styrene phenol polyoxyethylene ether phosphate, 1% magnesium aluminum silicate, 0.16% xanthan gum, 5% propylene glycol, 0.02% potassium benzoate, 0.4% silicone antifoaming agent, deionized water to make up the balance;

[0129] Preparation method: same as Preparation Example 1.

[0130] Preparation Example 8:

[0131] 18% compound of formula (I) + novaluron SC (4:14)

[0132] 4% compound of formula (I), 14% novaluron, 3% sodium dodecyl sulfate, 1.5% sodium lignosulfonate, 3% styrene phenol polyoxyethylene ether phosphate, 1% magnesium aluminum silicate, 0.16% xanthan gum, 5% propylene glycol, 0.02% potassium benzoate, 0.4% silicone antifoaming agent, deionized water to make up the balance;

[0133] Preparation method: same as Preparation Example 1.

[0134] Preparation Example 9:

[0135] 20% compound of formula (I) + spiromesifen SC (10:10)

[0136] 10% compound of formula (I), 10% spiromesifen, 0.5% sodium polycarboxylate, 3% alkyl aryl polyoxyethylene polyoxypropylene ether, 3% styrene phenol polyoxyethylene ether phosphate, 1% magnesium aluminum silicate, 0.16% xanthan gum, 5% propylene glycol, 0.02% potassium benzoate, 0.4% silicone antifoaming agent, deionized water to make up the balance;

[0137] Preparation method: same as Preparation Example 1.

[0138] Preparation Example 10:

[0139] 8% compound of formula (I) + triflumuron EC (3:5)

[0140] 3% compound of formula (I) + 5% triflumuron + 10% styryl phenol polyoxyethylene ether + 3% calcium dodecylbenzenesulfonate + 10% N-methyl pyrrolidone + 20% cyclohexanone + xylene to 100%;

[0141] Preparation method: the effective ingredient is added into the carrier according to the formulation ratio of the example, and the surfactant and other functional adjuvants are added into it, and then it is stirred and mixed uniformly in a stirring mixing kettle to obtain the EC product.

[0142] Preparation Example 11:

[0143] 6% compound of formula (I) + bifenenthrin EC (4:2)

[0144] 4% compound of formula (I) + 2% bifenenthrin + 12% styryl phenol polyoxyethylene ether + 3% calcium dodecylbenzenesulfonate + 10% N-methyl pyrrolidone + 18% cyclohexanone + xylene to 100%;

[0145] Preparation method: the same as preparation example 10.

[0146] Preparation Example 12:

[0147] 6% compound of formula (I) + abamectin EC (5.5:0.5)

[0148] 5.5% compound of formula (I) + 0.5% abamectin + 10% styryl phenol polyoxyethylene ether + 2% calcium dodecylbenzenesulfonate + 1% BHT + 10% N-methyl pyrrolidone + 20% cyclohexanone + xylene to 100%;

[0149] Preparation method: the same as preparation example 10.

[0150] Preparation Example 13:

[0151] 6% compound of formula (I) + hexythiazox EC (4.5:1.5)

[0152] 4.5% compound of formula (I) + 1.5% hexythiazox + 10% styryl phenol polyoxyethylene ether + 2% calcium dodecylbenzenesulfonate + 10% N-methyl pyrrolidone + 20% cyclohexanone + xylene to 100%;

[0153] Preparation method: the same as preparation example 10.

[0154] Preparation Example 14:

[0155] 25% compound of formula (I) + propargite aqueous emulsion (2:23)

[0156] 2% of the compound of formula (I), 23% of propargite, 20% of cyclohexanone, 2% of epoxidized soybean oil, 6% of alkylaryl polyoxyethylene polyoxypropylene ether, 1% of styrene phenol polyoxyethylene ether phosphate, 5% of glycerol, deionized water to make up the balance;

[0157] Preparation method: according to the proportion of the example formula, the active ingredient is dissolved in the solvent and the emulsifier to make a uniform oil phase, deionized water and antifreeze are mixed together to form a uniform water phase; under high-speed shearing, the oil phase is added to the water phase to form a water emulsion product.

[0158] Preparation Example 15:

[0159] 15% of the compound of formula (I)·azocyclotin water emulsion (7:8)

[0160] 7% of the compound of formula (I), 8% of azocyclotin, 20% of cyclohexanone, 6% of sorbitan oleate polyoxyethylene ether, 1% of fatty alcohol polyoxyethylene ether sulfate, deionized water to make up the balance;

[0161] Preparation method: the same as preparation example 14.

[0162] Preparation Example 16:

[0163] 8% of the compound of formula (I)·flumiclorac water emulsion (2.5:5.5)

[0164] 2.5% of the compound of formula (I), 5.5% of flumiclorac, 20% of cyclohexanone, 6% of sorbitan oleate polyoxyethylene ether, 1% of fatty alcohol polyoxyethylene ether sulfate, 5% of glycerol, deionized water to make up the balance;

[0165] Preparation method: the same as preparation example 14.

[0166] Preparation Example 17:

[0167] 8% of the compound of formula (I)·pyridaben microemulsion (3:5)

[0168] 3% of the compound of formula (I), 5% of pyridaben, 20% of cyclohexanone, 15% of styryl phenol polyoxyethylene ether, 3% of alkylaryl polyoxyethylene polyoxypropylene ether, 1% of fatty alcohol polyoxyethylene ether sulfate, 0.05% of silicone antifoaming agent, deionized water to make up the balance;

[0169] Preparation method: according to the proportion of the example formula, the active ingredient, solvent, emulsifier, etc. are mixed uniformly to prepare an oil phase, the antifreeze and water are mixed uniformly to prepare a water phase, the oil phase is added to the water phase under stirring to mix uniformly, continue to shear for 10 min, and then add the antifoaming agent to mix uniformly, so that the oil phase particles are small droplets with a size of 0.01-0.1 μm, and the microemulsion product is prepared.

[0170] Preparation Example 18:

[0171] 45% compound of formula (I) + flufenacet WP (10:35)

[0172] 10% compound of formula (I), 35% flufenacet, 2% fatty alcohol polyoxyethylene ether, 4% white carbon black, 7.5% sodium methyl naphthalene sulfonate formaldehyde condensate, 5% tea saponin, 2.5% sodium dodecyl sulfate, 10% expanded soil, kaolin to make up the balance;

[0173] Preparation method: according to the formulation ratio of the examples, the active ingredients are added to the carrier, and the surfactants and other functional adjuvants are added thereto, mixed, and then the wettable powder product is obtained after air flow crushing and mixing.

[0174] Laboratory toxicity test

[0175] The examples refer to the guidelines for pesticide laboratory bioassay test, part 13: leaf disc spray method NY / T 1154.13-2008; part 7: determination of combined action of mixtures NY / T 1154.7-2006.

[0176] Test agents: compound of formula (I) TC, spirotetramat TC, spirodiclofen TC, etoxazole TC, ethyl (2-chloro-5-(thfluoromethyl)-2,6-dinitrophenyl) acetate TC, cotonate TC, bifenazate TC, abamectin TC, clofentezine TC, hexythiazox TC, diafenthiuron TC, hydroprene TC, spirodiclofen TC, all of which are provided by the Group R&D Center;

[0177] Test target: two-spotted spider mite;

[0178] Select laboratory-reared, physiologically consistent nymphs. Temperature (25±1) °C. Relative humidity 65%±5%, light cycle 16 / 8h (L / D);

[0179] Select uniformly growing cucumber leaves, make 2cm diameter leaf discs with a puncher, place agar in a petri dish for moisture retention, place filter paper on the agar, place the leaf discs on the filter paper, 3 leaf discs per dish, inoculate the laboratory-reared nymphs onto the leaf discs, 10-15 per leaf disc.

[0180] Agent preparation: dissolve the TC in acetone, then dilute with 0.1% Tween-80 aqueous solution. Prepare single agent stock solutions, and according to the purpose of mixing, 5 groups of ratios are designed according to the activity of the agent. Each single agent and each group of mixed agents is prepared in 5 series of concentrations according to the method of equal ratio.

[0181] Dosing: The culture dishes were placed in the bottom tray of the Potter spray tower for spraying, with 1 ml of spray liquid. After 1 min of settling, the dishes were removed and transferred to the rearing conditions. Each treatment had no less than 4 replicates, and each dose had no less than 120 insects. A treatment without the pesticide (containing all organic solvents and emulsifiers) was used as a blank control.

[0182] Data statistics and analysis: The mortality of the insects was checked 48 h after treatment, and the total number of insects and the number of dead insects were recorded. Based on the investigation data, the corrected mortality of each treatment was calculated.

[0183] The calculation was performed according to the following formula, and the calculation results were rounded to two decimal places:

[0184]

[0185] In the formula:

[0186] P - mortality, in percentage (%);

[0187] K - represents the number of dead insects, in number;

[0188] N - represents the total number of insects in the treatment, in number.

[0189]

[0190] In the formula:

[0191] P1 - corrected mortality, in percentage (%);

[0192] P t - treatment mortality, in percentage (%);

[0193] P0 - blank control mortality, in percentage (%).

[0194] If the control mortality is < 5%, no correction is needed; if the control mortality is between 5% and 20%, correction should be performed; and if the control mortality is > 20%, the test needs to be redone.

[0195] The data were processed using the method of probability value analysis. IBM SPSS Statistics 20 statistical analysis system can be used to analyze the LC 50 values of the toxicity regression line and their 95% confidence limits, b values, and evaluate the activity of the test pesticide on the biological test material.

[0196] The co-toxicity coefficient (CTC value) of the mixed agent was calculated according to the following formula:

[0197]

[0198] In the formula:

[0199] ATI - Actual Toxicity Index of the mixture

[0200] S - LC of standard acaricide 50 in mg / L;

[0201] M - LC of mixture 50 in mg / L.

[0202] TTI = TI A * P A + TI B * P B

[0203] wherein:

[0204] TTI - Theoretical Toxicity Index of the mixture

[0205] TI A - Toxicity Index of A agent

[0206] P A - Percentage of A agent in the mixture, in %;

[0207] TI B - Toxicity Index of B agent

[0208] P B - Percentage of B agent in the mixture, in %.

[0209]

[0210] wherein:

[0211] CTC - Co-Toxicity Coefficient

[0212] ATI - Actual Toxicity Index of the mixture

[0213] TTI - Theoretical Toxicity Index of the mixture

[0214] A CTC of the mixture of more than 120 indicates a synergistic effect; a CTC of less than 80 indicates an antagonistic effect; a CTC of between 80 and 120 indicates an additive effect.

[0215] Test results: the compound of formula (I) as a single agent showed a high toxicity against T. urticae, with an LC 50The value is 10.907 mg / L, and the indoor toxicity of each single dose to control Tetranychus urticae Koch shows that lufenuron (15.318 mg / L) < chlorfenethol (12.659 mg / L) < diafenthiuron (11.680 mg / L) < spiromesifen (10.667 mg / L) < spirodiclofen (9.919 mg / L) < etoxazole (6.495 mg / L) < clofentezine (6.272 mg / L) < knick (6.255 mg / L) < spirotetramat (6.049 mg / L) < ethyl acetate (4.608 mg / L) < bifenazate (3.656 mg / L) < abamectin (0.454 mg / L).

[0216] The formula (I) compound and spirotetramat show synergistic effect in the range of 25:1-1:20; the formula (I) compound and etoxazole show synergistic effect in the range of 24:1-1:24; the formula (I) compound and ethyl acetate show synergistic effect in the range of 24:1-1:10; the formula (I) compound and knick show synergistic effect in the range of 32-1:16; the formula (I) compound and bifenazate show synergistic effect in the range of 20:1-1:18; the formula (I) compound and abamectin show synergistic effect in the range of 60:1-1:10; the formula (I) compound and clofentezine show synergistic effect in the range of 24:1-1:20; the formula (I) compound and chlorfenethol show synergistic effect in the range of 8:1-1:18; the formula (I) compound and diafenthiuron show synergistic effect in the range of 26:1-1:12; the formula (I) compound and lufenuron show synergistic effect in the range of 20:1-1:20; and the formula (I) compound and spirodiclofen show synergistic effect in the range of 12:1-1:30.

[0217] Table 1 Synergistic toxicity determination of the formula (I) compound and spirotetramat in different ratios to Tetranychus urticae (nymphs)

[0218]

[0219] Table 2 Synergistic toxicity determination of the formula (I) compound and spiromesifen in different ratios to Tetranychus urticae (nymphs)

[0220]

[0221]

[0222] Table 3 Synergistic toxicity determination of the formula (I) compound and etoxazole in different ratios to Tetranychus urticae (nymphs)

[0223]

[0224] Table 4 Joint toxicity test of compound of formula (I) with ethyl {2-[2-(4- chlorophenyl)-4,4-dimethyl-3-oxetanyl]ethyl}carbamate against Tetranychus urticae (nymphs) at different ratios

[0225]

[0226] Table 5 Joint toxicity test of compound of formula (I) with azocyclotin against Tetranychus urticae (nymphs) at different ratios

[0227]

[0228]

[0229] Table 6 Joint toxicity test of compound of formula (I) with bifenoxime against Tetranychus urticae (nymphs) at different ratios

[0230]

[0231] Table 7 Joint toxicity test of compound of formula (I) with abamectin against Tetranychus urticae (nymphs) at different ratios

[0232]

[0233] Table 8 Joint toxicity test of compound of formula (I) with clofentezine against Tetranychus urticae (nymphs) at different ratios

[0234]

[0235]

[0236] Table 9 Joint toxicity test of compound of formula (I) with hexythiazox against Tetranychus urticae (nymphs) at different ratios

[0237]

[0238] Table 10 Joint toxicity test of compound of formula (I) with diafenthiuron against Tetranychus urticae (nymphs) at different ratios

[0239]

[0240] Table 11 Joint toxicity test of compound of formula (I) with hydroprene against Tetranychus urticae (nymphs) at different ratios

[0241]

[0242]

[0243] Table 12 Joint toxicity test of compound of formula (I) with spirodiclofen against Tetranychus urticae (nymphs) at different ratios

[0244]

[0245] In the above-mentioned test, we determined the indoor toxicity data of the compound of formula (I) and spirotetramat, spiromesifen, etoxazole, ethyl azolcarb, cypofrifuram, bifenazate, abamectin, clofentezine, hexythiazox, diafenthiuron, hydroprene, spirodiclofen in the control of T. urticae, and also determined the indoor toxicity data of the compound of formula (I) and fluoroimide, azocyclotin, afoxolaner, bistrifluron and pyridaben, flonicamid in the control of T. urticae (nymphs), and the results showed that,

[0246] When the active ingredient B is fluoroimide, the LC50 thereof is 8.239 mg / L; when the mass ratio of the compound of formula (I) to fluoroimide is 30:1-1:30, the co-toxicity coefficients thereof are between 123.275 and 189.556, and the co-toxicity coefficients are all greater than 120, indicating that the two components all show synergistic effect in the range of 30:1-1:30, and the co-toxicity coefficient is the largest and the synergistic effect is the most obvious when the mass ratio of the compound of formula (I) to fluoroimide is 2:5. 50

[0247] When the active ingredient B is azocyclotin, the LC50 thereof is 60.378 mg / L; when the mass ratio of the compound of formula (I) to azocyclotin is 10:1-1:50, the co-toxicity coefficients thereof are between 133.227 and 190.462, and the co-toxicity coefficients are all greater than 120, indicating that the two components all show synergistic effect in the range of 10:1-1:50, and the co-toxicity coefficient is the largest and the synergistic effect is the most obvious when the mass ratio of the compound of formula (I) to azocyclotin is 3:4. 50

[0248] When the active ingredient B is afoxolaner, the LC50 thereof is 322.753 mg / L; when the mass ratio of the compound of formula (I) to afoxolaner is 1:6-1:100, the co-toxicity coefficients thereof are between 120.342 and 202.806, and the co-toxicity coefficients are all greater than 120, indicating that the two components all show synergistic effect in the range of 1:6-1:100, and the co-toxicity coefficient is the largest and the synergistic effect is the most obvious when the mass ratio of the compound of formula (I) to afoxolaner is 1:15. 50

[0249] When the active ingredient B is bistrifluron, the LC50 thereof is 80.256 mg / L; when the mass ratio of the compound of formula (I) to bistrifluron is 15:1-1:30, the co-toxicity coefficients thereof are between 143.741 and 194.617, and the co-toxicity coefficients are all greater than 120, indicating that the two components all show synergistic effect in the range of 15:1-1:30, and the co-toxicity coefficient is the largest and the synergistic effect is the most obvious when the mass ratio of the compound of formula (I) to bistrifluron is 3:5. 50

[0250] When the active ingredient B is pyridaben, the LC50 thereof is 0.018 mg / L; when the mass ratio of the compound of formula (I) to pyridaben is 1:1-1:100, the co-toxicity coefficients thereof are between 122.858 and 202.806, and the co-toxicity coefficients are all greater than 120, indicating that the two components all show synergistic effect in the range of 1:1-1:100, and the co-toxicity coefficient is the largest and the synergistic effect is the most obvious when the mass ratio of the compound of formula (I) to pyridaben is 1:10.​​​​50 The co-toxicity coefficients of the compound of formula (I) and pyridaben in the mass ratio of 20:1-1:20 were between 124.660-198.088, and the co-toxicity coefficients were all greater than 120, indicating that the two compounds showed synergistic effect in the range of 20:1-1:20. When the mass ratio of the compound of formula (I) and pyridaben was 3:5, the co-toxicity coefficient was the largest, and the synergistic effect was the most obvious.

[0251] When the active ingredient B was fluazinam, the LC 50 The co-toxicity coefficients of the compound of formula (I) and fluazinam in the mass ratio of 20:1-1:20 were between 121.479-192.062, and the co-toxicity coefficients were all greater than 120, indicating that the two compounds showed synergistic effect in the range of 20:1-1:20. When the mass ratio of the compound of formula (I) and fluazinam was 2:1, the co-toxicity coefficient was the largest, and the synergistic effect was the most obvious.

[0252] Field efficacy test

[0253] Field test for controlling Tetranychus urticae Koch

[0254] Test crop: cucumber;

[0255] Test object: Tetranychus urticae Koch;

[0256] Test site: cucumber planting field in Pingdu City, Qingdao City.

[0257] Test treatment: Each plot was arranged randomly in groups, 10 plants per plot, repeated 4 times, and the spraying equipment was a 16-liter HD-400 type knapsack sprayer from Singapore Linnong, spraying was uniform and meticulous, and the front and back of the fruit and leaves were sprayed wet.

[0258] Test time: Spraying on April 28, 2022, and only spraying once during the entire test process.

[0259] The weather was good on the test day and during the period. On the test day, the average daily temperature was 19°C, the maximum temperature was 26°C, the minimum temperature was 14°C, and the relative humidity was 70%.

[0260] Investigation method: 2 cucumber plants were investigated per plot, 25 leaves were randomly investigated each time, and the number of live mites on the front and back of each leaf was observed and recorded directly in the field without removing the leaves using a 10-fold insect magnifying glass; the mite population was investigated before spraying, and the number of live mites was investigated 3 days and 14 days after spraying.

[0261] Method for calculating efficacy: efficacy was calculated according to the following formula:

[0262]

[0263] During the experiment, the growth of cucumber in each treatment plot was observed to be good, and no phytotoxicity occurred in each treatment.

[0264] Test results:

[0265] Table 13 Test results of different test agents on T. urticae

[0266]

[0267] Note: The control effect (%) in the above table is the average value of each repetition.

[0268] According to the field investigation, no adverse reaction of leaves and tender branches to the agents occurred in each treatment, indicating that each treatment was safe to the growth of cucumber at the concentration used in the test.

[0269] As can be seen from the field test results in Table 13, the compound of formula (I) and spirotetramat, spiromesifen, etoxazole, ethaziocarb, cypofrifrin, bifenazate, abamectin, clofentezine, hexythiazox, diafenthiuron, hydroprene, spirodiclofen, flumiclorac, zeta-cypermethrin, propargite, bistrifluron, pyridaben and fluazaindane showed good control effect on T. urticae on cucumber, and the control effects were significantly higher than those of the single agent. 3 days after application, the control effects of each compound were more than 80%, and the quick-acting property was good; 14 days after application, the control effects of each compound increased, and the control effects were more than 90%, showing good persistence.

[0270] Through indoor toxicity determination and test on cucumber in the field, the pesticide composition prepared by compounding the compound of formula (I) and spirotetramat, spiromesifen, etoxazole, ethaziocarb, cypofrifrin, bifenazate, abamectin, clofentezine, hexythiazox, diafenthiuron, hydroprene, spirodiclofen, flumiclorac, zeta-cypermethrin, propargite, bistrifluron, pyridaben and fluazaindane showed good control effect on phytophagous mites, especially T. urticae.

[0271] The pesticide composition or the preparation thereof prepared by compounding has significant control effect, is superior to the single agent in delaying the generation of drug resistance and prolonging the persistence of the drug, and does not cause phytotoxicity to crops, so that the production cost and use cost can be reduced, and the pesticide composition and the preparation thereof are safe to crops.

[0272] Although the present application has been described in detail in the foregoing description with general principles and specific embodiments, modifications or improvements can be made on the basis of the present application, which is obvious to those skilled in the art, and therefore, these modifications or improvements made without departing from the spirit of the present application are within the scope of the present application.

Claims

1. A pesticide composition, characterized in that: The pesticide composition includes active ingredient A and active ingredient B, wherein active ingredient A is a compound of formula (I): Active ingredient B is selected from one or more of the following acaricides: B1 heterocyclic compounds: pyridaben, azoxystrobin; B3 benzoyl acetonitrile derivatives: buflufenicol; B4 oxazoles: etoxazole, fluxametamide, isocycloseram; B5 pyrazole amides: pyridaben, pyflubumide, etoxazole, cyprodinil; B6 biphenylhydrazine derivatives: biphenylhydrazine esters; B7 antibiotics: avermectin, methylavermectin benzoate, liuyangmycin, huaguangmycin, mibamectin; B8 Organotin compounds: Triazole tin, Benzobutyltin; B9 Tetraazine: Tetramethrin, Fluoxetine; B 10 Thiazolidinediones: Thiamethoxam; B 11 Sulfites: Propylene; B 12 Thioureas: difenoconazole, dicofol; B 13 Sulfoxides: flupentiofenox; B 14 Bridged cyclic amines: acynonapyr; B 15 Quinoline derivatives: floctoquin; B 16 Quinazoline derivatives: Quinidazole; B 17 Pyridazinone derivatives: pyridaben; B 18 Benzoylurea derivatives: Lufenuron, Flufenoxuron, Flufenoxuron, Diflubenzuron; B 19 Methoxyacrylates: pyrimethanil, fluopyram, pyrimethanil; B 20 Benzoic acid esters: amidoflumet; B 21 Pyrazole derivatives: Acetaminophen, vaniliprole, fipronil; B 22 Pyrroles: Chlorfenapyr, Brofenoxam; B 23 Pyrimidine derivatives: pyrimethanil; B 24 Naphthoquinones: Acaricides; B 25 Pyridazine derivatives: pyridaben; B 26 Pyrethroids: cypermethrin, deltamethrin, cypermethrin, bifenthrin, flufenoxuron, and bromofenoxuron; B 27 Biologically derived substances: matrine, veratrine, azadirachtin, pyrethroids, rotenone, pine mites, olive shark; B 28 Non-systemic organic nitrogen compounds: bis(formamidin), monoformamidin; B 29 Other classes: at least one of the following insecticides and acaricides: mivorilaner, modoflaner, tigolaner, umifoxolaner, trifluralin, fluazinam, spinosad, and mineral oil.

2. The pesticide composition according to claim 1, characterized in that, The active ingredient B is selected from any one of etoxazole, etoxazole, cyprodinil, bifenazate, abamectin, tetradifon, thiamethoxam, difenouron, and lufenuron.

3. The pesticide composition according to claim 1, characterized in that, The mass ratio of active ingredient A to active ingredient B is 1:100 to 100:1; preferably 1:80 to 80:

1.

4. The pesticide composition according to claim 1, characterized in that, The compound represented by formula (I) has a mass ratio of 24:1 to 1:24 with etoxazole, a mass ratio of 24:1 to 1:10 with etoxazole, a mass ratio of 32:1 to 1:16 with cyprodinil, a mass ratio of 20:1 to 1:18 with bifenazate, a mass ratio of 60:1 to 1:10 with abamectin, a mass ratio of 24:1 to 1:20 with tetradifon, a mass ratio of 8:1 to 1:18 with thiamethoxam, a mass ratio of 26:1 to 1:12 with difenoconazole, and a mass ratio of 20:1 to 1:20 with lufenuron.

5. The pesticide composition according to claim 1, characterized in that, Based on a total weight of 100 wt% of the pesticide composition, the sum of the contents of the active ingredient A and the active ingredient B in the pesticide composition is 1 to 95 wt%. Preferably, the sum of the contents of the active ingredient A and the active ingredient B in the pesticide composition is 5 to 80 wt%.

6. The pesticide composition according to claim 1, characterized in that, In addition to the active ingredient, the pesticide composition also includes agriculturally acceptable auxiliary ingredients, which are selected from one or more of wetting agents, dispersants, emulsifiers, thickeners, disintegrants, antifreeze agents, defoamers, solvents, preservatives, stabilizers, synergists or carriers.

7. The pesticide composition according to claim 5, characterized in that, The pesticide composition can be prepared into an agriculturally permissible formulation, wherein the formulation is selected from solid and / or liquid formulations; Preferably, the solid formulation is selected from wettable powder, water-dispersible granules, and soluble granules; the liquid formulation is selected from emulsifiable concentrate, water emulsion, and suspension concentrate.

8. The application of the pesticide composition according to any one of claims 1-7 in the control of phytophagous mites.

9. The application according to claim 8, characterized in that, The phytophagous mites mentioned are spider mites; Preferably, the spider mite is *Tetranychus truncatus*, *Tetranychus carmineus*, *Tetranychus citrus*, or *Tetranychus two-spotted*.

10. The application according to claim 8, characterized in that, The pesticide composition and / or its formulation are applied at an effective dose to the mites that need to be controlled or to the medium in which they grow.

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