A pesticide composition and its use

Abstract

The present invention belongs to the field of pesticide sterilization technology and discloses a pesticide composition and its use. The pesticide composition comprises active ingredient A and active ingredient B, wherein active ingredient A is cyclobutrifluram and active ingredient B is any one of tetramycin, jinggangmycin, shinazinomycin, or kasugamycin. The mass ratio of active ingredient A to active ingredient B is 1:48 to 1:52. The pesticide composition of the present invention has a significant synergistic effect against pathogens and is harmless to target crops and other organisms.

Description

Technical Field

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

[0002] The long-term and extensive use of chemical fungicides has led to increased pathogen resistance and increasingly severe excessive pesticide residues. From the perspective of green agricultural development in my country, biopesticides, with their low toxicity, low residue levels, good environmental compatibility, and resistance to developing resistance, play a positive role in reducing chemical pesticide use and safeguarding the quality and safety of agricultural products and the ecological environment. However, there are currently few registered biopesticides in my country, and in actual production, farmers' control effectiveness when using biopesticides alone is poor, hindering their application and promotion.

[0003] Chemical agents are the primary means of preventing and controlling plant diseases. Since biological agents and chemical agents have different mechanisms of action on pathogens, their synergistic use has greater room for development in the application of reducing the amount of chemical agents and increasing their effectiveness. However, due to the significant differences in the pharmacological effects of biological pesticides and chemical pesticides, strict requirements are placed on the time of application, temperature, method of application, and mixing and application technology. Therefore, the applicant conducted a large number of experimental studies on the compounding of Cyclobutrifluram with any one of tetramycin, jinggangmycin, shinazomicin, or kasugamycin to explore the optimal mass ratio of the compound combination, in order to provide an alternative agent for the current reduction and effectiveness of chemical agents for the prevention and control of plant diseases caused by Fusarium fungi. Summary of the Invention

[0004] Based on the above problems, the purpose of the present invention is to provide a pesticide composition with synergistic effects, especially having a high control effect on wheat scab, while reducing the dosage and slowing down the development of pathogen resistance;

[0005] Another object of the present invention is to provide a use of the pesticide composition or its formulation for preventing and controlling plant diseases;

[0006] Another object of the present invention is to use the pesticide composition and its preparation in preventing and controlling wheat scab.

[0007] In order to achieve the above object, the present invention adopts the following technical solution: a pesticide composition and its use, wherein the pesticide composition comprises an active ingredient A and an active ingredient B, wherein the active ingredient A is Cyclobutrifluram, and the active ingredient B is any one of tetramycin, jinggangmycin, shenqinmycin or kasugamycin;

[0008] Furthermore, the mass ratio of the active ingredient A to the active ingredient B is 1:48 to 1:52.

[0009] Furthermore, the active ingredient B is tetramycin, and the mass ratio of the active ingredient A to the active ingredient B is 1:32 to 48:1;

[0010] The active ingredient B is Jinggangmycin, and the mass ratio of the active ingredient A to the active ingredient B is 1:24 to 52:1;

[0011] The active ingredient B is shinazomib, and the mass ratio of the active ingredient A to the active ingredient B is 1:30 to 20:1;

[0012] The active ingredient B is kasugamycin, and the mass ratio of the active ingredient A to the active ingredient B is 1:40 to 20:1.

[0013] Furthermore, the active ingredient B is tetramycin, and the mass ratio of the active ingredient A to the active ingredient B is 1:24 to 32:1;

[0014] The active ingredient B is Jinggangmycin, and the mass ratio of the active ingredient A to the active ingredient B is 1:12 to 48:1;

[0015] The active ingredient B is shinazomib, and the mass ratio of the active ingredient A to the active ingredient B is 1:20 to 10:1;

[0016] The active ingredient B is kasugamycin, and the mass ratio of the active ingredient A to the active ingredient B is 1:30 to 10:1.

[0017] Furthermore, based on the total weight of the pesticide composition being 100%, the total weight of the active ingredient A and the active ingredient B accounts for 0.1% to 80% of the total weight of the fungicide composition.

[0018] Furthermore, the fungicidal composition contains, in addition to the active ingredients, auxiliary ingredients permitted in pesticides, and the auxiliary ingredients are selected from one or more of wetting agents, dispersants, emulsifiers, thickeners, disintegrants, antifreeze agents, defoaming agents, solvents, preservatives, stabilizers, synergists, binders, fillers or carriers.

[0019] Further, the wetting agent is selected from one or more of alkylbenzene sulfonate, alkylnaphthalene sulfonate, lignin sulfonate, sodium lauryl sulfate, sodium dioctyl sulfosuccinate, α-olefin sulfonate, alkylphenol polyoxyethylene ether, castor oil polyoxyethylene ether, alkylphenol ethoxylate, fatty alcohol ethoxylate, fatty alcohol polyoxyethylene ether sodium sulfate, silkworm feces, soapberry powder, soapberry powder, SOPA, detergent, emulsifier 2000 series and wetting penetrant F; and / or

[0020] Further, 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 acids, phosphates, EO-PO block copolymers and EO-PO graft copolymers; and / or

[0021] Furthermore, the emulsifier is selected from one or more of calcium dodecylbenzenesulfonate, alkylphenol formaldehyde resin polyoxyethylene ether, phenylethylphenol polyoxyethylene polyoxypropylene ether, fatty alcohol ethylene oxide-propylene oxide copolymer, styrylphenol polyoxyethylene ether, castor oil polyoxyethylene ether and alkylphenol ether phosphate; and / or

[0022] Furthermore, the thickener 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

[0023] Furthermore, 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

[0024] Furthermore, the antifreeze agent is selected from one or more of alcohols, alcohol ethers, chlorinated hydrocarbons and inorganic salts; and / or

[0025] Further, the defoaming agent is selected from C 10 -C 20 Saturated fatty acid compounds, silicone oil, silicone compounds, C8-C 10 One or more of fatty alcohols; and / or

[0026] Furthermore, the solvent is selected from one or more of benzene, toluene, xylene, durene, methanol, ethanol, isopropanol, n-butanol, dimethyl sulfoxide, dimethylformamide, cyclohexanone, alkylene carbonate, diesel, solvent oil, vegetable oil (soybean oil, corn oil, rapeseed oil, palm oil, etc.), vegetable oil derivatives and water; and / or

[0027] Furthermore, 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, kasone and 1,2-benzisothiazolin-3-one; and / or

[0028] Furthermore, 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-methylphenol, triethanolamine oleate, epoxidized vegetable oil, kaolin, diatomaceous earth, bentonite, attapulgite, white carbon black, talc, montmorillonite and starch; and / or

[0029] Furthermore, the synergist is selected from phosphine, piperonyl butoxide; and / or

[0030] Further, 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;

[0031] Furthermore, the pesticide composition can be prepared into a pesticide-acceptable formulation, which is a solid formulation or a liquid formulation.

[0032] Furthermore, the solid preparation is a granule, a strip, a wettable powder, an oil-dispersible powder, an emulsion, a water-dispersible granule, an emulsion, a water-dispersible tablet, a soluble powder, a soluble tablet or a soluble granule, and the liquid preparation is a soluble solution, a soluble gel, an oil, a film-spreading oil, an emulsifiable concentrate, a latex, a dispersible liquid, an ointment, an aqueous emulsion, an oil emulsion, a microemulsion, a fat, a suspension, a microcapsule suspension, an oil suspension, a dispersible oil suspension or a suspoemulsion.

[0033] The present invention also discloses use of the above pesticide composition for preventing and controlling plant diseases.

[0034] Furthermore, the plant disease is wheat fusarium wilt.

[0035] The beneficial effects of the present invention are:

[0036] 1) The fungicidal composition of the present invention has a significant synergistic effect on plant pathogens within a certain range and has a significant preventive effect;

[0037] 2) The bactericidal combination of the present invention can effectively reduce the dosage of pesticides, reduce pesticide residues, and is safe for the environment. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the present invention more concise and clear, the present invention is described with the following specific examples, but the present invention is by no means limited to these examples. The embodiments described below are only preferred embodiments of the present invention and can be used to describe the present invention, and should not be understood as limiting the scope of the present invention.

[0039] Preparation Example 1: 12% Cyclobutrifluram·Tetramycin Soluble Solution (3:1)

[0040] Formula composition: 9% Cyclobutrifluram, 3% tetramycin, 15% ethanol, 12% fatty alcohol polyoxyethylene ether, 15% cyclohexanone, DMF to make up 100%

[0041] Preparation method: According to the formula ratio, the active ingredients are added to the solvent, and surfactants and other functional additives are added thereto, and the mixture is stirred and mixed evenly in a stirring mixing kettle to obtain a soluble liquid product.

[0042] Preparation Example 2: 14% Cyclobutrifluram·Tetramycin Suspension (6:1)

[0043] Formula composition: 12% cyclobutrifluram, 2% tetramycin, 2% sodium lauryl sulfate, 2% styrenated phenol polyoxyethylene ether phosphate, 2% naphthalenesulfonate formaldehyde condensate, 0.25% xanthan gum, 1% magnesium aluminum silicate, 4% propylene glycol, 0.01% potassium benzisothiazolinone, 0.5% silicone oil, and deionized water to make up the balance;

[0044] 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 and mixed evenly, and the suspension product is obtained by high-speed shearing, wet sand grinding, and finally homogenization filtration.

[0045] Preparation Example 3: 16% Cyclobutrifluram·Jinggangmycin suspension (1:3)

[0046] Formula composition: 4% Cyclobutrifluram, 12% Jinggangmycin, 2% alkylphenol polyoxyethylene ether phosphate, 1% lignin sulfonate, 3% alkylaryl polyoxyethylene ether polyoxypropylene ether, 0.25% xanthan gum, 5% ethylene glycol, 0.1% sodium benzoate, 0.5% silicone oil, and deionized water to make up the balance;

[0047] Preparation method: Same as Preparation Example 2.

[0048] Preparation Example 4: 24% Cyclobutrifluram·Jinggangmycin wettable powder (3:1)

[0049] Formula composition: 18% Cyclobutrifluram, 6% Jinggangmycin, 8% naphthalenesulfonate formaldehyde condensate, 4% Lakai powder BX, 1% polycarboxylate sodium salt, 1% sodium lauryl sulfate, kaolin makes up the balance;

[0050] Preparation method: According to the formula ratio, the active ingredient, dispersant, wetting agent and filler are mixed, stirred evenly in a stirring tank, and crushed and mixed evenly for multiple times in a jet mill to prepare the required wettable powder.

[0051] Preparation Example 5: 12% Cyclobutrifluram·Kasugamycin wettable powder (1:5)

[0052] Formula composition: 2% cyclobutrifluram, 10% kasugamycin, 2% naphthalenesulfonate formaldehyde condensate, 7% sodium ligninsulfonate, 3% kaokai powder BX, 2% ammonium sulfate, and kaolin as the balance.

[0053] Preparation method: same as Preparation Example 4.

[0054] Preparation Example 6: 15% Cyclobutrifluram·Kasugamycin Suspension (2:3)

[0055] Formula composition: 6% cyclobutrifluram, 9% kasugamycin, 1% fatty alcohol polyoxyethylene ether, 1% block polyether, 1% isomeric alcohol polyoxyethylene ether, 1% naphthalenesulfonate formaldehyde condensate, 3% styrenated phenol polyoxyethylene ether phosphate, 2% magnesium aluminum silicate, 0.2% carboxyethyl cellulose, 1% sodium benzoate, 5% ethylene glycol, 0.5% silicone oil, and deionized water to make up the balance;

[0056] Preparation method: Same as Preparation Example 2.

[0057] Preparation Example 7: 21% Cyclobutrifluram·Kasugamycin Water Dispersible Granules (5:2)

[0058] Formula composition: 15% Cyclobutrifluram, 6% Kasugamycin, 4% Naphthalenesulfonate formaldehyde condensate, 6% Ligninsulfonate, 2% Sodium lauryl sulfate, 5% White carbon black, 30% starch, kaolin as the balance.

[0059] Preparation method: According to the formula ratio, the active ingredient is added to the carrier, and surfactants and other functional additives are added thereto, mixed, and after air flow grinding, 10-25% water is added, and then kneading, granulation, drying, and screening are carried out to obtain a water-dispersible granule product; or the crushed powder is sprayed with water in a boiling granulator, granulated, dried, and then sieved to obtain the product.

[0060] Preparation Example 8: 14% Cyclobutrifluram·Shenqinmycin Suspension (5:2)

[0061] Formula composition: 10% cyclobutrifluram, 4% shinazin, 1% isotridecyl alcohol polyoxyethylene ether, 1% naphthalenesulfonate formaldehyde condensate, 2% styrenated phenol polyoxyethylene ether phosphate, 2% alkyl aryl polyoxyethylene ether polyoxypropylene ether, 0.25% xanthan gum, 1% magnesium aluminum silicate, 5% propylene glycol, 0.2% potassium benzoate, 0.5% silicone defoamer, and deionized water to make up the balance;

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

[0063] Preparation Example 9: 18% Cyclobutrifluram·Shenqinmycin Suspension (1:5)

[0064] Formula composition: 3% Cyclobutrifluram, 15% Shenqinmycin, 3% alkylphenol polyoxyethylene ether, 4% alkylphenol polyoxyethylene ether phosphate, 1% polycarboxylic acid sodium salt, 0.25% xanthan gum, 5% ethylene glycol, 0.15% sodium benzoate, 0.5% silicone defoamer, and deionized water to make up the balance;

[0065] Preparation method: Same as Preparation Example 2.

[0066] Example 1: Indoor bioactivity test of pathogens treated with different agents

[0067] Experimental basis: The test was carried out in accordance with NY / T 1156.2-2006 Agricultural Industry Standard of the People's Republic of China "Guidelines for Indoor Bioassay Tests of Pesticides - Fungicides Part 2: Plate Method for Inhibition of Pathogen Mycelial Growth".

[0068] Test target: Wheat fusarium (Fusarium graminearum).

[0069] Test drugs: tetramycin technical, jinggangmycin technical, shenqinmycin technical, kasugamycin technical, cyclobutrifluram technical.

[0070] Preparation of pharmaceutical preparation: Dissolve the original drug in a suitable solvent and then dilute it with 0.1% Tween 80 aqueous solution to prepare the single-dose stock solution. Design different ratios according to the mixing purpose and the activity of the pharmaceutical preparation. Prepare each single dose and each group of mixed preparations into the required series of mass concentrations.

[0071] Experimental repetition: Each concentration of the test drug was repeated 4 times, and a 0.1% Tween 80 aqueous solution without drug was used as a blank control.

[0072] Drug treatment: Under aseptic operating conditions, add the pre-melted and sterilized PDA culture medium into a sterile conical flask according to the test treatment. Quantitatively aspirate 10 mL of each prepared treatment solution from low concentration to high concentration, add them to the above-mentioned conical flasks respectively, shake well, and then pour equal amounts into culture dishes to prepare drug-containing plates of corresponding concentrations.

[0073] Inoculation: Under sterile conditions, use a sterilized puncher to cut a bacterial cake from the edge of a pre-cultured wheat Gibberella colony, use an inoculator to inoculate the bacterial cake into the center of the drug-containing plate, cover it with a cap, and place it in a constant temperature and light incubator at 26°C for dark culture.

[0074] Data Analysis: Investigate the growth of pathogenic mycelia based on the growth of mycelia in the blank control culture dish. Measure the diameter of the colonies in centimeters (cm) using a ruler. Measure the diameter of each colony once using the cross-hatch method, average the values, and record the raw data for all replicates for each treatment.

[0075] Data statistics and analysis: Based on the survey results, calculate the mycelial growth inhibition rate of each treatment concentration on the target bacteria, the unit is percentage (%), and the calculation results are rounded to two decimal places.

[0076] D=D1-D2

[0077] Where:

[0078] D——colony growth diameter;

[0079] D1 - colony diameter;

[0080] D2——diameter of mushroom cake.

[0081]

[0082] Where:

[0083] I——hyphae growth inhibition rate;

[0084] D0——blank control colony growth diameter;

[0085] D T ——The growth diameter of the colony after treatment with chemicals.

[0086] Use DPS statistical analysis system to analyze and obtain the toxicity regression equation and EC 50 The activity of the test agent on the biological test material is evaluated by the value.

[0087] Sun Yunpei method: The synergistic effect of mixed drugs is evaluated based on the co-toxicity coefficient (CTC). A co-toxicity coefficient of CTC ≥ 120 indicates a synergistic effect; CTC ≤ 80 indicates an antagonistic effect; and 80 < CTC < 120 indicates an additive effect.

[0088] Calculation of the co-toxicity coefficient (CTC value) of the mixture:

[0089]

[0090] Where:

[0091] ATI - measured toxicity index of mixture;

[0092] S——EC of standard agent 50 , the unit is milligrams per liter (mg / L);

[0093] M——EC of the mixture50 , the unit is milligrams per liter (mg / L).

[0094] TTI=TI A ×P A +TI B ×P B

[0095] Where:

[0096] TTI – Theoretical Toxicity Index of Mixtures;

[0097] TI A ——Agent toxicity index;

[0098] P A ——The percentage of agent A in the mixture, in percentage (%);

[0099] TI B ——Toxicity index of agent B;

[0100] P B ——The percentage of agent B in the mixture, in percentage (%).

[0101]

[0102] Where:

[0103] CTC – Co-toxicity coefficient;

[0104] ATI - measured toxicity index of mixture;

[0105] TTI - Theoretical Toxicity Index of Mixture.

[0106] The test results are shown in the table below:

[0107] Table 1 Results of indoor toxicity test of Cyclobutrifluram and tetramycin against wheat fusarium

[0108]

[0109] Table 2 Results of indoor toxicity test of Cyclobutrifluram and Jinggangmycin against wheat fusarium

[0110]

[0111] Table 3 Results of indoor toxicity activity test of Cyclobutrifluram and shinonemycin against wheat fusarium

[0112]

[0113]

[0114] Table 4 Results of indoor toxicity test of Cyclobutrifluram and kasugamycin against wheat fusarium

[0115]

[0116] The results of the indoor tests show that (see Tables 1-4) that cyclobutrifluram, when combined with any of tetramycin, jinggangmycin, shinonemycin or kasugamycin, exhibits a good antibacterial effect against wheat fusarium spores at a certain mass ratio. The mass ratio of cyclobutrifluram to tetramycin was 1:32-48:1, and the co-toxicity coefficient against wheat fusarium sphaeroides was greater than 120, showing a synergistic effect, while at the mass ratios of 1:48 and 50:1, they showed an additive effect; the mass ratio of cyclobutrifluram to jinggangmycin was 1:24-52:1, and it showed a synergistic effect against wheat fusarium sphaeroides, while at the mass ratio of 1:48, it showed an additive effect; the mass ratio of cyclobutrifluram to shenqinmycin was 1:30-20:1, and it showed a synergistic effect against wheat fusarium sphaeroides, while at the mass ratio of 30:1, it showed an additive effect; the mass ratio of cyclobutrifluram to kasugamycin was 1:40-20:1, and it showed a synergistic effect against wheat fusarium sphaeroides, while at the mass ratios of 30:1-40:1, it showed an additive effect.

[0117] Example 2: Field efficacy test for controlling wheat scab

[0118] Test basis: The test was conducted in accordance with NY / T 1464.15-2007 "Guidelines for Field Efficacy Tests of Pesticides Part 15: Fungicide Control of Wheat Scab".

[0119] Test object: wheat fusarium wilt.

[0120] Experimental crop: wheat (Zhengmai 9023).

[0121] Experimental environmental conditions: The experiment was conducted in Qinnan Town, Yandu District, Yancheng City, Jiangsu Province. The soil in the experimental site was clay with medium to high soil fertility. Wheat fusarium head blight has occurred seriously over the years. The cultivation conditions in all experimental plots were uniform and consistent, in line with local good agricultural practices.

[0122] Plot arrangement: The plots of test agent, control agent and blank control were arranged in random blocks, and the experimental area of ​​each plot was 20m 2 , each treatment was repeated 4 times.

[0123] Application method and number of applications: The first application was carried out on May 2, 2022, and the second application was carried out 7 days later (May 9). Conventional spraying was carried out using a Gongnong-16 sprayer.

[0124] Investigation Method: Twelve days before harvest, the control efficacy was investigated. Samples were collected at five locations within each plot, with 100 ears surveyed at each location. The percentage of dead ear area to total ear area was used to grade the diseased ears, and the number of diseased ears and the total number of ears were recorded.

[0125] Grading method:

[0126] Level 0: The whole ear is disease-free;

[0127] Level 1: The dead ear area accounts for less than 1 / 4 of the whole ear area;

[0128] Level 3: The dead ear area accounts for 1 / 4 to 1 / 2 of the whole ear area;

[0129] Level 5: The dead ear area accounts for 1 / 2 to 3 / 4 of the whole ear area;

[0130] Level 7: The dead ear area accounts for more than 3 / 4 of the whole ear area;

[0131] Calculation method of drug efficacy:

[0132]

[0133]

[0134] The results of the field efficacy survey are as follows:

[0135] Table 5 Results of field efficacy tests on wheat scab

[0136] serial number Medicine name Active ingredient dosage (g / hectare) Disease Index Control effect (%) 1 14% Cyclobutrifluram·Tetramycin suspension (6:1) 3 1.54 92.10 2 15% Cyclobutrifluram·Kasugamycin suspension (2:3) 35 2.08 89.36 3 24% Cyclobutrifluram·Jinggangmycin wettable powder (3:1) 40 2.49 87.23 4 14% Cyclobutrifluram·Shenqinmycin suspension (5:2) 100 2.59 86.72 5 0.3% tetramycin aqueous solution 3 8.06 58.74 6 35% Cyclobutrifluram wettable powder 60 4.97 74.54 7 6% Kasugamycin wettable powder 36 6.02 69.17 8 1% shinazomib suspension 120 4.86 75.09 9 24% Jinggangmycin aqueous solution 40 7.39 62.14 10 Clear water control / 19.53 -

[0137] The test results in the table above demonstrate that the pesticide compositions of the present invention exhibit excellent control efficacy against wheat scab. The compound formulations of each preparation example achieved better control of wheat scab than the single-dose control. Wheat growth was observed periodically throughout the test, and no adverse effects were observed with the various pesticide treatments.

[0138] Indoor and field efficacy control tests show that the present invention, combining cyclobutrifluram with tetramycin, kasugamycin, jinggangmycin, and shinazomicin in a reasonable ratio, has a good control effect on wheat scab and has no adverse effects on wheat growth.

Claims

1. A pesticide composition, characterized in that The pesticide composition comprises an active ingredient A and an active ingredient B, wherein the active ingredient A is cyclobutrifluram, the active ingredient B is tetramycin, and the mass ratio of the active ingredient A to the active ingredient B is 1:32 to 48:

1.

2. The pesticide composition according to claim 1, characterized in that The mass ratio of the active ingredient A to the active ingredient B is 1:24-32:

1.

3. The pesticide composition according to claim 1, characterized in that Based on the total weight of the pesticide composition as 100%, the total weight of the active ingredient A and the active ingredient B accounts for 0.1% to 80% of the total weight of the pesticide composition.

4. The pesticide composition according to claim 1, characterized in that In addition to the active ingredients, the pesticide composition also contains auxiliary ingredients allowed in pesticides, and the auxiliary ingredients are selected from one or more of wetting agents, dispersants, emulsifiers, thickeners, disintegrants, antifreeze agents, defoaming agents, solvents, preservatives, stabilizers, synergists, binders, fillers or carriers.

5. The pesticide composition according to claim 1, characterized in that The pesticide composition can be prepared into a pesticide-acceptable formulation, which is a solid formulation or a liquid formulation.

6. The pesticide composition according to claim 5, characterized in that The solid preparation is a granule, a wettable powder, an oil-dispersible powder, a water-dispersible granule, a water-dispersible tablet, a soluble powder, a soluble tablet or a soluble granule; the liquid preparation is a soluble solution, a soluble gel, an emulsifiable concentrate, a dispersible liquid, an aqueous emulsion, a microemulsion, a fat agent, a suspension, a dispersible oil suspension or a suspoemulsion.

7. Use of the pesticide composition according to any one of claims 1 to 6 for preventing and controlling wheat scab.

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