Pesticide composition and application thereof

Abstract

The invention belongs to the technical field of pesticides, and discloses 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 the formula I: # imgabs0, the active component B is any one of pyflubumide, vaniliprole, cyflumetofen or flufenoxystrobin, and the mass ratio of the active component A to the active component B is 1: 40-40: 1. The pesticide composition disclosed by the invention has an obvious synergistic effect on common phytophagous mites of fruit trees, vegetables, ornamental plants, cotton and the like, and has an obvious control effect on pest mites.

Description

Technical Field

[0001] The invention belongs to the technical field of pesticides and discloses a pesticide composition and application thereof. Background Art

[0002] The compound of formula I is a miticide, which has excellent control effects on common plant pests. Its chemical name is (4'-chloro-6-fluoro-4-methyl-[1,1'-biphenyl-3-yl])(2,2,2-trifluoroethyl) sulfide, and its structural formula is as follows:

[0003]

[0004] Pyflubumide, CAS registration number: 926914-55-8, is a novel carboxanilide acaricide discovered and developed by Nippon Agrochemical Co., Ltd. It is the only acaricide with a carboxanilide structure and a novel inhibitor of respiratory chain mitochondrial complex II. The acaricide has a high control effect on herbivorous mites, including spider mite populations that are resistant to conventional acaricides. Its structural formula is shown below:

[0005]

[0006] Vaniliprole, CAS registration number: 145767-97-1, chemical name is 1-[2,6-dichloro-4-(trifluoromethyl)phenyl]-5-[(4-hydroxy-3-methoxyphenyl)methyleneamino]-4-(trifluoromethylthio)pyrazole-3-carbonitrile, its structural formula is as follows:

[0007]

[0008] Cyflumetofen, English name: cyflumetofen, CAS registration number: 400882-07-7, is a new type of benzoyl acetonitrile acaricide. Its mechanism of action is to form a hydroxyl structure through deesterification in the body, thereby interfering with and inhibiting mitochondrial protein complex II, hindering electron (hydrogen) transfer, destroying phosphorylation reactions, and paralyzing and killing harmful mites. Its structural formula is shown below:

[0009]

[0010] Flufenoxystrobin, English name: flufenoxystrobin, CAS registration number: 918162-02-4, is a methoxyacrylate compound, which has high fungicidal activity and obvious acaricidal activity, and has a good effect on common harmful mites. Its structural formula is as follows:

[0011]

[0012] Mites, especially herbivorous mites, are a type of pest worldwide, causing great losses to agricultural and forestry production every year. Therefore, the prevention and control of agricultural mites is particularly important. However, since mites are very easy to develop drug resistance, the existing commercially available miticides will reduce their effectiveness in a short period of time due to resistance. Therefore, how to use pesticides reasonably and effectively to control herbivorous mites has become a major issue in agricultural production. Summary of the invention

[0013] Based on the deficiencies of the prior art, the present invention provides a pesticide composition, which is used for preventing and controlling plant pests and mites, and can effectively delay the generation and development of pesticide resistance of the pests and mites, and prolong the use time of the pesticide.

[0014] In order to achieve the above object, the present invention adopts the following technical scheme: a pesticide composition, the pesticide composition comprises an active ingredient A and an active ingredient B, the active ingredient A is a compound of formula I, and the active ingredient B is any one of pyflubumide, vaniliprole, cyfluthrin or fluazifop-butyl;

[0015] Furthermore, the mass ratio of active ingredient A to active ingredient B in the pesticide composition is 1:40 to 40:1;

[0016] Furthermore, the active ingredient B is pyflubumide, and the mass ratio of the active ingredient A to the active ingredient B is 1:30 to 40:1;

[0017] Furthermore, the active ingredient B is pyflubumide, and the mass ratio of the active ingredient A to the active ingredient B is 1:20 to 32:1;

[0018] Furthermore, the active ingredient B is vaniliprole, and the mass ratio of the active ingredient A to the active ingredient B is 1:36 to 20:1;

[0019] Furthermore, the active ingredient B is vaniliprole, and the mass ratio of the active ingredient A to the active ingredient B is 1:28 to 10:1;

[0020] Furthermore, the active ingredient B is cyflumetofen, and the mass ratio of the active ingredient A to the active ingredient B is 1:38 to 41:1;

[0021] Furthermore, the active ingredient B is cyfluthrin, and the preferred mass ratio of the active ingredient is 1:24 to 36:1;

[0022] Furthermore, the active ingredient B is fluazifop-butyl, and the mass ratio of the active ingredient A to the active ingredient B is 1:35 to 32:1;

[0023] Furthermore, the active ingredient B is fluazifop-butyl, and the mass ratio of the active ingredient A to the active ingredient B is 1:24 to 28:1.

[0024] Furthermore, the total weight of the pesticide composition is calculated as 100wt%, and the total weight of the active ingredient A and the active ingredient B accounts for 1wt% to 80wt% of the total weight of the agricultural composition;

[0025] Furthermore, the pesticide composition includes, in addition to the active ingredient, auxiliary ingredients permitted in pesticides;

[0026] Furthermore, the auxiliary component is selected from one or more of a wetting agent, a dispersant, an emulsifier, a thickener, a disintegrant, an antifreeze agent, a defoaming agent, a preservative, a stabilizer, a synergist, and a carrier;

[0027] Further, the wetting agent is selected from one or more of alkylbenzene sulfonate, alkylnaphthalene sulfonate, lignin sulfonate, sodium dodecyl sulfate, sodium dioctyl succinate sulfonate, α-olefin sulfonate, alkylphenol polyoxyethylene ether, castor oil polyoxyethylene ether, alkylphenol ethoxylate, fatty alcohol ethoxylate, fatty alcohol polyoxyethylene ether sodium sulfate, silkworm feces, saponin powder, soapberry powder, SOPA, detergent, emulsifier 2000 series and wetting penetrant F; and / or

[0028] The dispersant is selected from one or more of lignin sulfonate, alkylnaphthalene sulfonate formaldehyde condensate, naphthalene sulfonate, tristyrylphenol ethoxylate phosphate, fatty alcohol ethoxylate, alkylphenol polyoxyethylene ether, alkylphenol polyoxyethylene ether methyl ether condensate sulfate, fatty amine polyoxyethylene ether, glycerol fatty acid ester polyoxyethylene ether, polycarboxylates, polyacrylic acid, phosphates, EO-PO block copolymers and EO-PO graft copolymers; and / or

[0029] The thickener is selected from one or more of xanthan gum, polyvinyl alcohol, organic bentonite, magnesium aluminum silicate, and carboxymethyl cellulose; and / or

[0030] 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

[0031] The emulsifier is selected from one or more of fatty alcohol polyoxyethylene ether, fatty alcohol ethylene oxide-propylene oxide copolymer, phenylethylphenol polyoxyethylene polyoxypropylene ether, alkylphenol polyoxyethylene ether, fatty amine polyoxyethylene ether, alkylbenzene sulfonate, styrylphenol polyoxyethylene ether, fatty acid polyoxyethylene ester; and / or

[0032] The defoaming agent is selected from silicone oil, C 10 ~C 20 Saturated fatty acid compounds, C 8 ~C 10 One or more of fatty alcohol compounds or silicone compounds; and / or

[0033] The preservative is selected from one or more of sorbic acid, sodium sorbate, potassium sorbate, benzoic acid, sodium benzoate, sodium p-hydroxybenzoate, and methyl p-hydroxybenzoate; and / or

[0034] 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, epoxidized vegetable oil, and / or

[0035] The synergist is selected from synergist phosphite and synergist ether; and / or

[0036] The carrier is selected from one or more of kaolin, bentonite, attapulgite, light calcium carbonate, diatomaceous earth, and white carbon black; and / or

[0037] The solvent is selected from one or more of benzene, toluene, xylene, methanol, ethanol, isopropanol, n-butanol, diesel, N,N-dimethylformamide, cyclohexanone, ethyl acetate, N-methylpyrrolidone, propanol, butanol, ethylene glycol, diethylene glycol, ethylene glycol methyl ether, butyl ether, solvent oil, vegetable oil, vegetable oil derivatives and deionized water; and / or

[0038] The above auxiliary ingredients are all commercially available.

[0039] Furthermore, the pesticide composition can be prepared into a solid preparation or a liquid preparation;

[0040] Further, the solid preparation is selected from powders, granules, pellets, tablets, strips, wettable powders, oil-dispersible powders, emulsion powders, water-dispersible granules, emulsion granules, water-dispersible tablets, soluble powders, soluble tablets or soluble granules;

[0041] The liquid preparation is selected from soluble solutions, soluble gels, oils, film-spreading oils, emulsifiable concentrates, latexes, dispersible solutions, ointments, aqueous emulsions, oil emulsions, microemulsions, lipid suspensions, microcapsule suspensions, oil suspensions, dispersible oil suspensions, suspoemulsions, microcapsule suspension-suspensions, microcapsule suspension-water emulsions or microcapsule suspension-suspoemulsions;

[0042] Furthermore, the solid preparation is a water-dispersible granule or a wettable powder, and the liquid preparation is selected from emulsifiable concentrate, aqueous emulsion, microemulsion, dispersible oil suspension or suspension.

[0043] The invention also discloses the use of the above pesticide composition for preventing and controlling phytophagous mites.

[0044] Furthermore, the phytophagous pest mite is any one or any combination of Tetranychus urticae, Tetranychus cinnabarinus, Panonychus citri, Tetranychus truncatus, Tetranychus villosa, Tetranychus citri or Tetranychus citri;

[0045] Furthermore, the phytophagous pest mite is two-spotted spider mite or cinnabarinus spider mite.

[0046] Beneficial effects of the present invention:

[0047] 1. The pesticide composition of the present invention has obvious synergistic effect, which can reduce the number of pesticide applications and the amount of a single dose used;

[0048] 2. The pesticide composition of the present invention can effectively slow down the generation and development of mite resistance and is safe for crops and the environment. DETAILED DESCRIPTION

[0049] In order to make the technical solutions, objectives and advantages of the present invention more clearly understood, the present invention is described with the following specific embodiments, but the present invention can be implemented in various forms and should not be limited by the embodiments described herein.

[0050] Preparation Example

[0051] Preparation Example 1: 18% Formula I compound·pyflubumide suspension (2:1)

[0052] Formula composition: 12% compound of formula I, 6% pyflubumide, 1% Guerbet alcohol polyoxyethylene ether, 2% succinate sulfonate, 2% alkylphenol polyoxyethylene ether phosphate, 2% alkylaryl polyoxyethylene ether polyoxypropylene ether, 1% polycarboxylic acid sodium salt, 0.2% xanthan gum, 1% magnesium aluminum silicate, 5% ethylene glycol, 0.2% sodium benzoate, 0.5% silicone oil, and deionized water to make up the balance;

[0053] Preparation method: According to the formula ratio, the active ingredients, surfactants and other functional additives are placed in a reactor in sequence, water is added to mix evenly, and the suspension product is obtained by high-speed shearing, wet sand grinding, and finally homogenization filtration.

[0054] Preparation Example 2: 24% Formula I compound·pyflubumide water dispersible granules (1:5)

[0055] The formula comprises: 4% of the compound of formula I, 20% of pyflubumide, 8% of lignin sulfonate, 3% of sodium dodecyl sulfate, 4% of naphthalene sulfonate formaldehyde condensate, 5% of white carbon black, 23% of starch, and kaolin makes up the balance.

[0056] Preparation method: according to the formula ratio, the active ingredient is added to the carrier, and the surfactant and other functional additives are added thereto, mixed, and after air flow grinding, 10-25% of water is added, and then the water-dispersible granule product is obtained by kneading, granulating, drying and sieving; or the crushed powder is sprayed with water in a boiling granulator, granulated, dried, and then sieved to obtain the product.

[0057] Preparation Example 3: 24% Formula I compound·vaniliprole suspension (1:3)

[0058] Formula composition: 6% compound of formula I, 18% vaniliprole, 1% fatty alcohol polyoxyethylene ether, 1% polycarboxylic acid sodium salt, 3% fatty alcohol polyoxyethylene ether sulfate, 2% alkyl aryl polyoxyethylene ether polyoxypropylene ether, 0.5% magnesium aluminum silicate, 0.2% xanthan gum, 5% ethylene glycol, 0.2% potassium benzoate, 0.5% silicone oil, and deionized water to make up the balance.

[0059] Preparation method: Same as Preparation Example 1.

[0060] Preparation Example 4: 30% Formula I compound·vaniliprole water dispersible granules (5:1)

[0061] The formula composition is as follows: 25% of the compound of formula I, 5% of vaniliprole, 8% of sodium polycarboxylate, 2% of pull open powder BX, 5% of naphthalenesulfonate formaldehyde condensate, 5% of ammonium sulfate, and kaolin makes up the balance.

[0062] Preparation method: Same as Preparation Example 2.

[0063] Preparation Example 5: 20% Formula I compound·Cytofluanid suspension (1:1)

[0064] Formula composition: 10% compound of formula I, 10% cyfluthrin, 0.5% alkylphenol polyoxyethylene ether, 3% alkylphenol polyoxyethylene ether phosphate, 1% sodium lignin sulfonate, 1% sodium polycarboxylate, 0.25% xanthan gum, 5% glycerol, 0.1% sodium benzoate, 0.5% silicone oil, and deionized water to make up the balance.

[0065] Preparation method: Same as Preparation Example 1.

[0066] Preparation Example 6: 16% Formula I compound·Cytofluanid emulsifiable concentrate (15:1)

[0067] Formula composition: 15% compound of formula I, 1% cyfluthrin, 15% N-methylpyrrolidone, 15% cyclohexanone, 10% alkylphenol polyoxyethylene ether, 2% calcium dodecylbenzenesulfonate, 10% DMF, and methyl oleate makes up the balance.

[0068] Preparation method: according to the formula ratio, the measured active ingredients, solvents and co-solvents are added into a mixing kettle and stirred to dissolve, then an emulsifier is added, and the remaining solvent is used to make up the balance, and the mixture is stirred evenly in a stirring kettle, and filtered to obtain the emulsifiable concentrate required by the present invention.

[0069] Preparation Example 7: 16% Formula I compound·fluanidazole emulsifiable concentrate (3:1)

[0070] Formula composition: 12% of the compound of formula I, 4% of fluopicolide, 10% of EO / PO block copolymer, 15% of acetophenone, 8% of propylene glycol methyl ether, 2% of calcium dodecylbenzene sulfonate, and xylene makes up the balance.

[0071] Preparation method: Same as Preparation Example 6.

[0072] Preparation Example 8: 24% Formula I compound·fluanidazole suspension (1:5)

[0073] Formula composition: 4% compound of formula I, 20% fluopicolide, 1% fatty alcohol polyoxyethylene ether, 2% alkyl aryl polyoxyethylene ether polyoxypropylene ether, 2% succinate sulfonate, 4% alkylphenol polyoxyethylene ether phosphate, 1% magnesium aluminum silicate, 0.1% carboxyethyl cellulose, 1% sodium sorbate, 5% ethylene glycol, 0.5% silicone oil, and deionized water to make up the balance;

[0074] Preparation method: Same as Preparation Example 1.

[0075] The preparation examples prepared above have been tested and found to meet the quality and technical indicators required for the corresponding preparations, and the preparations prepared are qualified preparations recognized in the art.

[0076] Example 1: Indoor activity test of the compound pesticide composition against adult spider mites

[0077] Test basis: The test refers to NY / T 1154.12-2008 "Guidelines for Indoor Biological Activity Determination of Pesticides Insecticides Part 12: Spider Mite Slide Dipping Method".

[0078] Test target: Adult female two-spotted spider mite (Tetranychus urticae Koch).

[0079] Test agents: technical drug of the compound of formula I, pyflubumide technical drug, vaniliprole technical drug, butyroxithromycin technical drug, and flufenacet technical drug.

[0080] Test method: Select female adult mites that are raised indoors and have the same physiological state. Cut a 2 cm long double-sided tape and stick it to one end of a glass slide. Pick healthy female adult mites and stick them to the double-sided tape. 30 mites per slide. After treatment, put the mites into a container with a wet sponge, cover it, and place it at (25±1)℃. After 2 hours, conduct a microscopic examination, remove dead, injured, and inactive individuals, and make up 30 mites per slide.

[0081] The technical drug of the compound of formula I was dissolved with N,N-dimethylformamide, and pyflubumide technical drug, vaniliprole technical drug, butyric acid technical drug, and flutoxan technical drug were dissolved with acetone, and the above dissolved technical drugs were prepared into mother liquor, and then 0.1% Tween-80 aqueous solution was used to prepare 5 series of mass concentration gradients. The glass slide was immersed in the above reagents and gently shaken for 5 seconds, then taken out, and the excess liquid was absorbed with absorbent paper, placed in a white porcelain plate padded with a wet sponge, and covered with a plastic film with good light transmittance. Each treatment was repeated 4 times, and a treatment containing no reagent (containing all organic solvents and emulsifiers) was set as a blank control.

[0082] Feeding and observation: The treated mites were placed in (25±1)℃, light cycle L:D=(16:8)h for feeding and observation. After 48h of treatment, the mites were checked for death, and the total number of mites and the number of dead mites were recorded.

[0083] Data statistics and analysis:

[0084] Based on the survey data, the adjusted mortality rate of each treatment was calculated according to the following formula, and the calculation results were retained to two decimal places.

[0085]

[0086] Where:

[0087] P——mortality rate, in percentage (%);

[0088] K——indicates the number of dead insects, in units of heads;

[0089] N——represents the total number of insects treated, in heads.

[0090]

[0091] Where:

[0092] P 1 ——Adjusted mortality rate, expressed as percentage (%);

[0093] P t ——Treatment mortality rate, expressed as percentage (%);

[0094] P0 ——Blank control mortality rate, in percentage (%).

[0095] If the control mortality rate is less than 5%, no correction is required; if the control mortality rate is between 5% and 20%, correction should be made according to the correction mortality formula; if the control mortality rate is greater than 20%, the test needs to be repeated.

[0096] Analyze using the DPS statistical analysis system to find the LC 50 Value, to evaluate the activity of the test agent on the biological test material.

[0097] The co-toxicity coefficient (CTC value) of the mixture is calculated as follows:

[0098]

[0099] Where:

[0100] ATI——Actual Toxicity Index of Mixture;

[0101] S——LC of standard acaricide 50 , the unit is milligrams per liter (mg / L);

[0102] M——LC of the mixture 50 , the unit is milligrams per liter (mg / L).

[0103] TTI=TI A ×P A +TI B ×P B

[0104] Where:

[0105] TTI – Theoretical Toxicity Index of Mixtures;

[0106] TI A ——A: toxicity index of the agent;

[0107] P A ——The percentage of agent A in the mixture, in percentage (%);

[0108] TI B ——Toxicity index of agent B;

[0109] P B ——The percentage of agent B in the mixture, in percentage (%).

[0110]

[0111] Where:

[0112] CTC – Co-toxicity coefficient;

[0113] ATI——Actual Toxicity Index of Mixture;

[0114] TTI - Theoretical Toxicity Index of Mixture.

[0115] The co-toxicity coefficient of the combination CTC≥120 shows a synergistic effect; CTC≤80 shows an antagonistic effect; 80<CTC<120 shows an additive effect.

[0116] Related indoor activity tests are shown in the table below:

[0117] Table 1 Results of indoor activity test on adult spider mites with the compound of formula I and pyflubumide

[0118]

[0119]

[0120] Table 2 Results of indoor activity test on adult spider mites with compound of formula I and vaniliprole

[0121] Test drug <![CDATA[LC 50 (mg / L)]]> ATI TTI Co-toxicity coefficient (CTC) Compound (A) of formula I 4.9604 100.000 / / vaniliprole(B) 14.5643 34.059 / / A:B=1:36 10.9032 45.495 35.841 126.936 A:B=1:28 9.7864 50.687 36.332 139.508 A:B=1:15 8.9683 55.310 38.180 144.868 A:B=1:7 7.2233 68.672 42.301 162.341 A:B=1:3 5.5907 88.726 50.544 175.542 A:B=1:1 4.4619 111.172 67.029 165.856 A:B=5:1 3.6135 137.274 89.010 154.224 A:B=10:1 3.9441 125.768 94.005 133.788 A:B=20:1 4.0899 121.284 96.860 125.216 A:B=30:1 4.8366 102.560 97.873 104.789 A:B=40:1 5.6036 88.522 98.392 89.969

[0122] Table 3 Results of indoor activity test of compound of formula I and cyfluthrin against adult Tetranychus urticae

[0123]

[0124]

[0125] Table 4 Indoor activity test results of the compound of formula I and flufenacet against adult spider mites

[0126] Test drug <![CDATA[LC 50 (mg / L)]]> ATI TTI Co-toxicity coefficient (CTC) Compound (A) of formula I 4.9604 100.000 / / Fluopyram (B) 10.0782 49.219 / / A:B=1:35 8.0119 61.913 50.630 122.286 A:B=1:24 7.0394 70.466 51.250 137.494 A:B=1:12 6.186 80.188 53.125 150.940 A:B=1:5 4.9834 99.538 57.683 172.562 A:B=1:2 4.2229 117.464 66.146 177.583 A:B=3:1 3.0001 165.341 87.305 189.384 A:B=7:1 3.2524 152.515 93.652 162.852 A:B=14:1 3.5005 141.705 96.615 146.671 A:B=28:1 3.7521 132.203 98.249 134.560 A:B=32:1 3.9774 124.715 98.461 126.664 A:B=40:1 5.0419 98.384 98.761 99.617

[0127] It can be seen from the indoor activity test results in Tables 1-4 that compounding the compound of formula I with any one of pyflubumide, vaniliprole, cyflumetofen and fluazifop-butyl at an appropriate mass ratio exhibits excellent control effect on Tetranychus urticae. The mass ratio of the compound of formula I to pyflubumide is in the range of 1:30 to 40:1, which shows a synergistic effect on two-spotted spider mites, and the co-toxicity coefficient is greater than 120; the mass ratio of the compound of formula I to vaniliprole is in the range of 1:36 to 20:1, which shows a synergistic effect on two-spotted spider mites, and the co-toxicity coefficient is greater than 120. When the mass ratio is 1:3, the maximum co-toxicity coefficient is 175.542; the mass ratio of the compound of formula I to butyclomefone is 1:38 to 41:1, and the co-toxicity coefficient is greater than 120. When the mass ratio is 1:1, the maximum co-toxicity coefficient is 211.273; the mass ratio of the compound of formula I to flufenacet is 1:35 to 32:1, and the co-toxicity coefficient is greater than 120, which shows a synergistic effect.

[0128] Example 2: Field efficacy test of the compound composition against strawberry spider mites

[0129] Test reference: The test refers to GB / T 17980.17-2000 "Guidelines for field efficacy tests of pesticides (I) Acaricides for the control of leaf mites on beans and vegetables".

[0130] Test location: In the fruit and vegetable greenhouse in Shanghui Village, Linhai City, Zhejiang Province, the cultivation and management of each test plot are consistent, and the growth of strawberries is relatively uniform.

[0131] Test crop: Strawberry (Red Beauty).

[0132] Test target: The main harmful species are Tetranychus cinnabarinus and Tetranychus two-spotted.

[0133] Experimental design: The experiment set up 10 treatments, each treatment was repeated 4 times, and the plots were arranged randomly, with an area of ​​15m 2 Each plot was treated with water according to the experimental design on February 5, 2022. During the application time, a backpack electric sprayer was used to evenly spray the entire strawberry plant.

[0134] Survey statistics: 20 plants were randomly selected in each plot, and one leaf was marked on each plant. The number of surviving spider mites on the marked leaves was surveyed each time. A total of 4 surveys were conducted in the experiment, including one survey before spraying, and one survey at 3d, 7d, and 14d after spraying. The number of live mites was recorded, and the mite population reduction rate and control effect of each treatment area were calculated.

[0135] During the test, observe whether the pesticide has any phytotoxicity to crops and whether it has any adverse effects on other target organisms.

[0136] The calculation formula is as follows:

[0137]

[0138]

[0139] The test results are as follows:

[0140] Table 5 Field efficacy test results of the composite composition against strawberry spider mites

[0141]

[0142] It can be seen from the field efficacy test that the pesticide composition of the present invention has a good control effect on strawberry spider mites, and each agent has a good quick-acting effect on strawberry spider mites and a long lasting effect. During the entire test process, no phytotoxicity was found to occur in the strawberry plants by the treatment agents, nor was there any adverse effect on other target organisms.

[0143] Although the present invention has been described in detail above with general descriptions and specific implementation schemes, it is obvious to those skilled in the art that some modifications or improvements can be made on the basis of the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention are within the scope of protection claimed by the present invention.

Claims

1. A pesticide composition, characterized in that: The pesticide composition comprises active ingredient A and active ingredient B, wherein the active ingredient A is a compound of formula I: The active ingredient B is any one of pyflubumide, vaniliprole, cyfluthrin or fluazifop-butyl.

2. The pesticide composition according to claim 1, characterized in that The mass ratio of active ingredient A to active ingredient B in the pesticide composition is 1:40 to 40:

1.

3. The pesticide composition according to claim 1, characterized in that The active ingredient B is pyflubumide, and the mass ratio of the active ingredient A to the active ingredient B is 1:30 to 40:1; the preferred mass ratio is 1:20 to 32:1; The active ingredient B is vaniliprole, and the mass ratio of the active ingredient A to the active ingredient B is 1:36 to 20:1; the preferred mass ratio is 1:28 to 10:1; The active ingredient B is cyflumetofen, and the mass ratio of the active ingredient A to the active ingredient B is 1:38 to 41:1; the preferred mass ratio is 1:24 to 36:1; The active ingredient B is flutofenac, and the mass ratio of the active ingredient A to the active ingredient B is 1:35 to 32:1; the preferred mass ratio is 1:24 to 28:

1.

4. The pesticide composition according to claim 1, characterized in that The total weight of the pesticide composition is calculated as 100 wt %, and the total weight of the active ingredient A and the active ingredient B accounts for 1 wt % to 80 wt % of the total weight of the agricultural composition.

5. The pesticide composition according to claim 1, characterized in that The pesticide composition includes not only active ingredients but also auxiliary ingredients permitted in pesticides.

6. The pesticide composition according to claim 5, characterized in that The auxiliary ingredients are selected from one or more of wetting agents, dispersants, emulsifiers, thickeners, disintegrants, antifreeze agents, defoaming agents, preservatives, stabilizers, synergists, and carriers.

7. The pesticide composition according to claim 1, characterized in that The pesticide composition can be prepared into a solid preparation or a liquid preparation.

8. The pesticide composition according to claim 7, characterized in that The solid preparation is selected from powders, granules, pellets, tablets, strips, wettable powders, oil-dispersible powders, emulsions, water-dispersible granules, emulsions, water-dispersible tablets, soluble powders, soluble tablets or soluble granules; The liquid preparation is selected from soluble solutions, soluble gels, oils, film-spreading oils, emulsifiable concentrates, latexes, dispersible solutions, ointments, aqueous emulsions, oil emulsions, microemulsions, lipid suspensions, microcapsule suspensions, oil suspensions, dispersible oil suspensions, suspoemulsions, microcapsule suspension-suspensions, microcapsule suspension-water emulsions or microcapsule suspension-suspoemulsions; Preferably, the solid preparation is a water-dispersible granule or a wettable powder, and the liquid preparation is selected from emulsifiable concentrate, water emulsion, microemulsion, dispersible oil suspension or suspension.

9. Use of the pesticide composition according to any one of claims 1 to 8 for controlling phytophagous mites.

10. The use according to claim 9, characterized in that: The herbivorous mites are any one or any combination of two-spotted spider mites, cinnabarinus spider mites, citrus truncate spider mites, hawthorn spider mites, citrus prototetranychus or prototetranychus; Preferably, the phytophagous pest mite is Tetranychus urticae or Tetranychus cinnabarinus.

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