A pesticide composition containing cyantraniliprole and its use

Abstract

The application belongs to the technical field of pesticide insecticide, and discloses a pesticide composition containing brofenvalerate, which comprises active ingredient A, active ingredient B and active ingredient C; the active ingredient A is brofenvalerate; the active ingredient B is high-efficiency lambda-cyhalothrin; and the active ingredient C is any one of thiamethoxam or thiamethoxam. The pesticide composition can effectively prevent and control various underground pests and seedling stage pests, especially the underground pests and seedling stage pests of peanuts and corns, and can enhance the stress resistance of plants, reduce the amount of pesticide, prolong the effective period, and has no pesticide damage to crops.

Description

Technical Field

[0001] This invention belongs to the field of pesticide technology, and specifically discloses a pesticide composition containing bromocyanamide and its uses. Background Technology

[0002] Bromnipotentiamide is an o-aminobenzamide insecticide developed by DuPont. It effectively activates ryanodine receptors in insects, causing a continuous release of calcium ions from the striated and smooth muscle cells, resulting in a rapid decrease in intracellular calcium ions and paralysis and death of the pests. It has strong inhibitory insecticidal effects and good systemic properties, allowing it to be translocated within the plant.

[0003] Lambda-Cyhalothrin, also known as λ-trifluorocypermethrin, primarily works through contact and stomach poisoning. It controls pests by inhibiting nerve conduction in insects, and is mainly used to control aphids and other pests on crops such as cotton, cruciferous vegetables, fruit trees, and tea trees.

[0004] Neonicotinic insecticides are a class of highly effective, safe, and selective insecticides. They primarily work by selectively controlling nicotinic acetylcholinesterase receptors in the insect nervous system, blocking normal transmission in the central nervous system, thus causing paralysis and death in pests. Neonicotinic insecticides are effective against pests of the orders Homoptera, Hemiptera, Coleoptera, and Lepidoptera, and are safe for mammals and the environment. They can be used for foliar application, as well as for soil and seed treatment.

[0005] This invention rationally combines bromocyanamide, lambda-cyhalothrin, and any one of the neonicotinoid insecticides thiamethoxam or thiamethoxam to study its safety on crop emergence, its impact on seedling quality, and its control effect on plant diseases. The optimal ratio and dosage of the seed coating agent are determined, providing a scientific basis for screening safe and efficient seed coating agents and promoting their large-scale application in production. Summary of the Invention

[0006] Based on the above, the purpose of this invention is to provide a pesticide composition containing bromocyanamide, which can effectively control a variety of underground pests and seedling pests of plants, especially peanut and corn underground pests and seedling pests. It requires a small amount of pesticide, has a long-lasting effect, and does not cause phytotoxicity to crops, thus significantly improving crop resistance.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] A pesticide composition containing brofenoxam, the pesticide composition comprising active ingredient A, active ingredient B and active ingredient C, wherein active ingredient A is brofenoxam, active ingredient B is lambda-cyhalothrin, and active ingredient C is either thiamethoxam or thiamethoxam.

[0009] Furthermore, the mass ratio of active ingredient A to active ingredient B to active ingredient C is (1-20):(1-15):(1-20);

[0010] Furthermore, the mass ratio of active ingredient A to active ingredient B to active ingredient C is (1-15):(1-10):(1-15);

[0011] Furthermore, the mass ratio of active ingredient A to active ingredient B to active ingredient C is (1-10):(1-9):(1-10);

[0012] Further, the mass ratio of active ingredient A to active ingredient B to active ingredient C is 2:1:2, 2:1:6, 2:1:10, 1:1:1, 1:1:3, 1:1:5, 1:2:1, 1:2:3, 1:2:5, 6:1:2, 6:1:6, 6:1:10, 3:1:1, 3:1:3, 3:1:5, 3:2:1, 3:2:3, 3:2:5, 10:1:2, 10:1:6, 10:1:10, 5:1:1, 5:1:3, 5:1 :5, 5:2:1, 5:2:3, 5:2:5, 3:1:6, 3:1:9, 3:5:3, 3:5:6, 3:5:9, 1:3:1, 1:3:2, 1:3:3, 5:1:3, 5:1:6, 5:1:9, 5:5:3, 5:5:6, 5:5:9, 5:9:3, 5:9:6, 5:9:9, 7:1:3, 7:1:6, 7:1:9, 7:5:3, 7:5:6, 7:5:9, 7:9:3, 7:9:6, 7:9:9.

[0013] Furthermore, based on a total weight of 100 wt% of the pesticide composition, the active ingredient accounts for 1% to 80% of the pesticide composition;

[0014] Furthermore, based on a total weight of 100 wt% of the pesticide composition, the active ingredient accounts for 2% to 80% of the pesticide composition;

[0015] Furthermore, the pesticide composition further includes an adjuvant selected from one or more of the following: wetting agents, dispersants, emulsifiers, thickeners, disintegrants, antifreeze agents, defoamers, solvents, preservatives, stabilizers, warning colors, film-forming agents, synergists, and carriers.

[0016] The wetting agent is selected from one or more of the following: alkylbenzene sulfonates, alkylnaphthalene sulfonates, lignin sulfonates, sodium dodecyl sulfate, sodium dioctyl succinate sulfonate, α-olefin sulfonates, alkylphenol polyoxyethylene ethers, castor oil polyoxyethylene ethers, alkylphenol ethoxylates, fatty alcohol ethoxylates, sodium fatty alcohol polyoxyethylene ether sulfate, silkworm excrement, soapberry powder, soapberry powder, SOPA, detergents, emulsifiers 2000 series, and wetting and penetrating agents F; and / or

[0017] The dispersant is selected from one or more of the following: lignin sulfonates, alkyl naphthalene sulfonates formaldehyde condensates, naphthalene sulfonates, tristyrylphenol ethoxylate phosphates, fatty alcohol ethoxylates, alkylphenol polyoxyethylene ethers, alkylphenol polyoxyethylene ether methyl ether condensates sulfates, fatty amine polyoxyethylene ethers, glycerol fatty acid ester polyoxyethylene ethers, polycarboxylates, polyacrylic acids, phosphates, EO-PO block copolymers, and EO-PO graft copolymers; and / or

[0018] The emulsifier is selected from one or more of the following: calcium dodecylbenzenesulfonate, alkylphenol formaldehyde resin polyoxyethylene ether, phenethylphenol polyoxyethylene polyoxypropylene ether, fatty alcohol ethylene oxide-propylene oxide copolymer, styrene-phenol polyoxyethylene ether, castor oil polyoxyethylene ether, and alkylphenol ether phosphate; and / or

[0019] The thickener is selected from one or more of xanthan gum, organobentonite, gum arabic, sodium alginate, magnesium aluminum silicate, carboxymethyl cellulose, and silica; and / or

[0020] 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

[0021] Antifreeze is selected from one or more of alcohols, alcohol ethers, chlorinated hydrocarbons, and inorganic salts; and / or

[0022] Defoamer selected from C 10 -C 20 Saturated fatty acid compounds, silicone oil, silicone compounds, C8-C 10 One or more of the fatty alcohols; and / or

[0023] The solvent is selected from one or more of benzene, toluene, xylene, mesitylene, methanol, ethanol, isopropanol, n-butanol, dimethyl sulfoxide, dimethylformamide, cyclohexanone, hydrocarbon carbonates, diesel oil, solvent oil, vegetable oil, vegetable oil derivatives, and water; and / or

[0024] 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, Kathon, and 1,2-benzisothiazolin-3-one; and / or

[0025] The stabilizer is selected from one or more of the following: 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, silica, talc, montmorillonite, and starch; and / or

[0026] Warning colors are selected from one or more of the following: blue, green, red, and purple; and / or

[0027] Film-forming agents are selected from one or more of sodium carboxymethyl starch, cellulose derivatives (sodium carboxymethyl cellulose, sodium alginate, polyvinyl alcohol), and polyacrylic acid; and / or

[0028] Synergists are selected from synergistic phosphorus, synergistic ether; and / or

[0029] The carrier is selected from one or more of the following: ammonium salts, ground natural minerals, ground artificial minerals, silicates, resins, waxes, solid fertilizers, water, organic solvents, mineral oils, vegetable oils, and vegetable oil derivatives.

[0030] Furthermore, the pesticide composition can be prepared into any agriculturally acceptable formulation, wherein the formulation is any one of seed treatment dry powder, seed treatment dispersible powder, seed treatment liquid, seed treatment emulsion, or seed treatment suspension.

[0031] Furthermore, the formulation is a seed treatment suspension.

[0032] The present invention also discloses the use of the pesticide composition described above in the control of plant pests.

[0033] Furthermore, the plants include corn, wheat, peanuts, rice and / or cotton; the pests are cutworms, grubs, aphids, corn borers, rice stem borers, wireworms, thrips and / or cutworms.

[0034] Furthermore, the plant is corn and / or peanut, and the pest is cutworm and / or grub.

[0035] Furthermore, the pesticide composition is applied at an effective dosage to plants, plant propagation materials or subsequently grown plant organs and cultivation media, cultivation materials or cultivation space.

[0036] The beneficial effects of this invention are as follows:

[0037] 1) The pesticide composition of the present invention can be used to control a variety of underground pests and seedling pests, reducing the dosage of pesticides used and making it safe for the environment and crops;

[0038] 2) The pesticide composition of the present invention effectively slows down the development of pesticide resistance in target pests. A single application in the field provides significant control and has a long-lasting effect. Detailed Implementation

[0039] To make the technical solution, objectives and advantages of the present invention clearer, the present invention is described with reference to the following specific embodiments. However, the present invention can be implemented in various forms and should not be limited to the embodiments described herein.

[0040] Formulation preparation example

[0041] Preparation method of seed treatment suspension: The active ingredients, adjuvants and water are mixed and stirred evenly under high shear according to the formula, and then sand milled for 2.5 hours to make the average particle size reach 1-5 micrometers. Finally, thickener, preservative and film-forming agent are added and shearing and stirring are continued to be uniform to obtain seed treatment suspension.

[0042] Preparation Example 1: 35% bromocyanamide·high-efficiency cyhalothrin·thiamethoxam seed treatment suspension (3:1:3)

[0043]

[0044]

[0045] Preparation Example 2: 35% bromocyanamide·high-efficiency cyhalothrin·thiamethoxam seed treatment suspension (3:1:3)

[0046] Components content bromocyanamide 15％ High-efficiency cyhalothrin 5％ Thiamethoxam 15％ Phenethylphenol polyoxyethylene polyoxypropylene ether 3％ Alkylphenol formaldehyde resin polyoxyethylene ether 4％ Sodium alginate 2％ Sodium carboxymethyl starch 1％ Xanthan Gum 0.1％ Rose red pigment 5％ Propylene glycol 5％ Magnesium aluminum silicate 1％ silicone defoamer 0.5％ Sodium benzoate 1％ Deionized water Make up the surplus

[0047] Preparation Example 3: 44% Bromoxynil·High-efficiency Cyfluthrin·Thiamethoxam Seed Treatment Suspension (5:1:5)

[0048]

[0049]

[0050] Preparation Example 4: 44% bromocyanamide·high-efficiency cypermethrin·thiamethoxam seed treatment suspension (5:1:5)

[0051] Components content bromocyanamide 20％ High-efficiency cyhalothrin 4％ Thiamethoxam 20％ Isomeric tridecyl alcohol polyoxyethylene ether 2％ Alkylphenol formaldehyde resin polyoxyethylene ether 2％ Sodium lignosulfonate 3％ Polyvinyl alcohol 2％ Xanthan Gum 0.2％ Rose red pigment 7％ Glycerol 5％ Magnesium aluminum silicate 1％ silicone defoamer 1％ Kathon 2％ Deionized water Make up the surplus

[0052] Preparation Example 5: 45% bromocyanamide·high-efficiency cypermethrin·thiamethoxam seed treatment suspension (2:1:2)

[0053] Components content bromocyanamide 18％ High-efficiency cyhalothrin 9％ Thiamethoxam 18％ Alkylphenol polyoxyethylene ether phosphate 3％ naphthalenesulfonate formaldehyde condensate 2％ Polyacrylic acid 1％ Xanthan Gum 0.3％ Rose red pigment 5％ Ethylene glycol 5％ Magnesium aluminum silicate 1％ silicone defoamer 0.5％ Sodium benzoate 1％ Deionized water Make up the surplus

[0054] Preparation Example 6: 45% bromocyanamide·high-efficiency cypermethrin·thiamethoxam seed treatment suspension (2:1:2)

[0055]

[0056]

[0057] Control Example 1: 32% bromocyanamide·high-efficiency cyhalothrin seed treatment suspension (3:1)

[0058] Components content bromocyanamide 24％ High-efficiency cyhalothrin 8％ Fatty amine polyoxyethylene ether 3％ Alkylphenol polyoxyethylene ether phosphate salt 2％ Sodium lignosulfonate 2％ Sodium benzoate 1％ Xanthan Gum 0.1％ Rose red pigment 5％ Propylene glycol 5％ Magnesium aluminum silicate 0.5％ silicone defoamer 0.5％ Polyacrylic acid 1％ Deionized water Make up the surplus

[0059] Control Example 2: 40% bromocyanamide·thiamethoxam seed treatment suspension (1:1)

[0060] Components content bromocyanamide 20％ Thiamethoxam 20％ Fatty amine polyoxyethylene ether 5％ Alkylphenol polyoxyethylene ether phosphate salt 3％ Sodium lignosulfonate 3％ Sodium benzoate 2％ Xanthan Gum 0.2％ Rose red pigment 6％ Propylene glycol 5％ Magnesium aluminum silicate 0.5％ silicone defoamer 1％ Polyacrylic acid 1％ Deionized water Make up the surplus

[0061] Control Example 3: 32% high-efficiency cyhalothrin·thiamethoxam seed treatment suspension (1:3)

[0062] Components content Thiamethoxam 24％ High-efficiency cyhalothrin 8％ Fatty amine polyoxyethylene ether 3％ Alkylphenol polyoxyethylene ether phosphate salt 3％ Sodium lignosulfonate 3％ Sodium benzoate 1％ Xanthan Gum 0.2％ Rose red pigment 5％ Propylene glycol 5％ Magnesium aluminum silicate 0.5％ silicone defoamer 0.5％ Polyacrylic acid 1％ Deionized water Make up the surplus

[0063] Control Example 4: 40% bromocyanamide·thiamethoxam seed treatment suspension (1:1)

[0064] Components content bromocyanamide 20％ Thiamethoxam 20％ Phenethylphenol polyoxyethylene polyoxypropylene ether 4％ Alkylphenol formaldehyde resin polyoxyethylene ether 5％ Sodium dodecyl sulfate 2％ Sodium carboxymethyl starch 2％ Xanthan Gum 0.5％ Rose red pigment 5％ Propylene glycol 5％ Magnesium aluminum silicate 1％ silicone defoamer 1％ Sodium benzoate 2％ Deionized water Make up the surplus

[0065] Control Example 5: 36% high-efficiency cyhalothrin·thiamethoxam seed treatment suspension (1:3)

[0066]

[0067]

[0068] Indoor bioassay experiments:

[0069] Example 1: Indoor bioassay of grubs under different treatments

[0070] The experiment was conducted in accordance with NY / T 1154.6-2006 "Guidelines for Indoor Bioassay Tests of Pesticides - Insecticides Part 6: Insecticidal Activity Test - Immersion Method".

[0071] Experimental target: The grub was the second instar larva of the large black grub (Holotrichia oblita F.).

[0072] Experimental instruments and equipment: electronic balance (sensitivity 0.1mg), pipette, insect cage, petri dish, graduated cylinder, filter paper, marker pen, stirring rod, stopwatch, beaker, paintbrush, tweezers, etc.

[0073] Experimental Design

[0074] 1) Test reagents: Thiamethoxam technical grade, purity: 98%; Clothianidin technical grade, purity: 96%; Cyantraniliprole technical grade, purity: 94%; Lambda-cyhalothrin technical grade, purity: 95%. All test reagents were provided by the R&D Center of Hailier Pharmaceutical Group.

[0075] 2) Preparation of reagents: Dissolve the above reagents in acetone, then dilute them with 0.1% Tween aqueous solution. Based on the activity of the reagents, set up 5 mass concentration gradients in equal proportion.

[0076] 3) Chemical treatment

[0077] Indoor bioassays were performed using the immersion method. Second-instar larvae of the large black-breasted scarab beetle of uniform growth were selected. After assessing the baseline population for each treatment, the target larvae were immersed in the drug solution for 10 seconds. Excess solution was then absorbed with filter paper, and the larvae were transferred to glass tubes containing fresh peanut leaves or a small amount of potato chunks as food. The tube openings were covered with a damp black cloth for rearing. Four replicates were performed for each concentration, with 15 larvae per replicate. A treatment without the drug was included as a blank control. The larvae were reared in an artificial climate chamber at 25±1℃, relative humidity of (70±10)%, and a photoperiod of 16h:8h (light:dark).

[0078] Data Survey

[0079] Investigate the mortality of test insects 48 hours after treatment with the pesticide. The criteria for judging the mortality of test insects are obvious shrinkage of the insect body or inability to crawl normally when punctured. Record the number of dead insects.

[0080] Data statistics and analysis:

[0081] Based on the survey results, the mortality rate and corrected mortality rate of the test insects for each treatment concentration were calculated according to the mortality rate calculation formula, in percentage (%).

[0082]

[0083]

[0084] If the control mortality rate is <5%, no correction is needed; if the control mortality rate is between 5% and 20%, correction should be performed according to the corrected mortality rate formula; if the control mortality rate is >20%, the trial needs to be repeated.

[0085] The expected value of the composition and its activity is calculated according to the following formula.

[0086]

[0087] In the formula:

[0088] X—The mortality rate when the dosage of drug 1 is P;

[0089] Y—mortality rate when drug 2 is administered at a dosage of Q;

[0090] Z—The mortality rate when the dosage of drug 3 is R.

[0091] To demonstrate the degree of synergy, the expected value is calculated based on the Colby method. When the measured value is greater than the expected value, it is determined that there is a synergistic effect.

[0092] The results of the indoor tests are shown in Tables 1 and 2.

[0093] Table 1. Results of indoor bioassay of grubs using a mixture of bromocyanamide, lambda-cyhalothrin, and thiamethoxam.

[0094]

[0095]

[0096] Table 2. Results of indoor bioassay of grubs using a mixture of bromocyanamide, lambda-cyhalothrin, and thiamethoxam.

[0097]

[0098]

[0099] Example 2: Indoor bioassay of different drug treatments on cutworms

[0100] The experiment was conducted in accordance with NY / T 1154.14-2008 "Guidelines for Indoor Bioassay Tests of Pesticides - Insecticides - Part 14: Leaf Dipping Method".

[0101] Test target: Agrotis ypsilon, third instar larvae, provided by the group's bioassay center laboratory.

[0102] Experimental steps:

[0103] 1) Test reagents: Thiamethoxam technical grade, purity: 98%; Clothianidin technical grade, purity: 96%; Cyantraniliprole technical grade, purity: 94%; Lambda-cyhalothrin technical grade, purity: 95%. All test reagents were provided by the Group's R&D Center.

[0104] 2) Reagent preparation: Dissolve the above test reagents in acetone, then dilute them with 0.1% Tween aqueous solution. Based on the reagent activity, set up 5 mass concentration gradients in equal proportion.

[0105] 3) Preparation of test materials: Select standard test insects with consistent physiological state; select cabbage leaves that have not been treated with pesticides, wash off the waxy layer on the surface of the cabbage leaves, dry them, and then use a punch to make the cabbage leaves into leaf discs for later use.

[0106] 4) Chemical treatment: Immerse the leaf disc in the test solution, remove it after 10 seconds, air dry it and place it in a petri dish containing moisturizing filter paper. Inoculate the test insects. Each treatment is repeated 4 times, with 20 test insects per repeat. A treatment without chemical treatment is set up as a blank control.

[0107] 5) Feeding and observation: The treated test insects were fed and observed under conditions of temperature (25±1)℃, relative humidity (75±5)% and photoperiod of 16L:8D. The results were checked after 72 hours. Those that did not react when touched with tweezers were considered dead. The total number of insects and the number of dead insects were recorded.

[0108] Data statistics and analysis:

[0109] Based on the survey results, the mortality rate and corrected mortality rate of the test insects for each treatment concentration were calculated according to the mortality rate calculation formula, in percentage (%).

[0110]

[0111]

[0112] If the control mortality rate is <5%, no correction is needed; if the control mortality rate is between 5% and 20%, correction should be performed according to the corrected mortality rate formula; if the control mortality rate is >20%, the trial needs to be repeated.

[0113] The expected value of the composition and its activity is calculated according to the following formula.

[0114]

[0115] In the formula:

[0116] X—The mortality rate when the dosage of drug 1 is P;

[0117] Y—mortality rate when drug 2 is administered at a dosage of Q;

[0118] Z—The mortality rate when the dosage of drug 3 is R.

[0119] To demonstrate the degree of synergy, the expected value is calculated based on the Colby method. When the measured value is greater than the expected value, it is determined that there is a synergistic effect.

[0120] The results of the indoor tests are shown in Tables 3 and 4.

[0121] Table 3. Results of indoor biota testing of cutworms with a mixture of bromocyanamide, lambda-cyhalothrin, and thiamethoxam.

[0122]

[0123]

[0124] Table 4. Results of indoor biota testing of cutworms with a mixture of bromocyanamide, lambda-cyhalothrin, and thiamethoxam.

[0125]

[0126]

[0127] field trials

[0128] Example 3: Effects of different pesticide treatments on corn emergence and growth.

[0129] The test reagents and their dosages are shown in the table below:

[0130] Table 5 Test reagents and dosages

[0131]

[0132] The test crop was maize (Xianyu 335), provided by the Group's Biotesting Center Laboratory.

[0133] Experimental Design:

[0134] 1) Seed treatment: Select large and plump corn seeds, mix them with seed dressing agent, dry them and set them aside. Use untreated seeds as blank control for indoor seed activity testing and field trials.

[0135] 2) Indoor seed vigor determination: The experiment was conducted according to GB / T 3543.5-1995 standard germination test. 400 seeds were selected from each treatment of coated seeds, with 100 seeds per replicate, for 4 replicates. The seeds were sown in a germination box (sand bed, constant temperature 25℃). Germination rate was counted on the 7th day of the experiment.

[0136]

[0137] 3) Field trials: Seeds from each treatment were sown in the field, with each plot measuring 30m². 2 Each treatment was repeated four times, with 200 seeds per replicate. Before sowing, artificial furrows were made, and seeds were sown individually.

[0138] 21 days after emergence, 10 seedlings were randomly selected from each replicate to measure physiological indicators such as plant height, number of roots, root activity, and peroxidase activity.

[0139] Physiological index determination methods: The experimental determination methods refer to Gong Fusheng's "Experimental Plant Physiology". Root activity was determined by the TTC method, and peroxidase activity was determined by the guaiacol method.

[0140] Table 6. Effects of different pesticide treatments on seed germination rate and seedling growth and development.

[0141]

[0142] The experimental results in the table above show that different seed coating agents had no significant effect on the germination rate of maize seeds and were safe for the crop. Coating treatment promoted maize growth; compared with the blank control, the seed coating agent of this invention significantly increased the plant height. In addition to aboveground growth, the seed coating agent of this invention also significantly promoted root development, significantly improved root activity, and enhanced the lodging resistance of maize. The peroxidase activity (POD) assay results showed that after seed coating treatment with the seed coating agent of this invention, the POD activity in the plant was significantly increased, indicating that the seed coating agent of this invention has an enhancing effect on POD in maize plants, accelerates the decomposition of hydrogen peroxide in maize, and improves the stress resistance of maize plants.

[0143] Example 4: Field efficacy trial of different pesticide treatments for controlling cutworms in maize

[0144] The experiment was conducted in accordance with GB / T 17980.72-2004 "Guidelines for Field Efficacy Tests of Pesticides (II) Part 72: Control of Underground Pests in Dry Land by Insecticides".

[0145] The experiment was conducted in a cornfield in Zhecheng County, Shangqiu City, Henan Province. The soil in the experimental field was sandy loam. Artificial irrigation was carried out after sowing. The soil fertility was moderate. The previous crop was wheat.

[0146] Experimental crop: Maize (Xianyu 335).

[0147] The test reagents and their dosages are shown in Table 7.

[0148] Experimental Methods: Before sowing, each treatment agent was thoroughly mixed with the seeds according to the dosage and then dried for later use. The experiment adopted a completely randomized design with a total of 12 treatments, each with 4 replicates. 100 seeds were sown in each plot. The experiment was conducted at the four-leaf stage of maize. The damage caused by grubs was investigated using a 5-point sampling method in a "Z" pattern. Five points were selected in each plot, and 10 plants were investigated at each point, for a total of 50 plants. The number of damaged plants was counted, and the damage rate and control efficacy were calculated.

[0149] Safety survey: From the time peanuts emerged after sowing to before harvest, the field growth of peanuts was observed irregularly, and no obvious symptoms of pesticide damage were found.

[0150] The method for calculating the effectiveness is as follows:

[0151]

[0152]

[0153] Table 7. Results of field efficacy trials of different pesticide treatments for controlling cutworms in corn.

[0154]

[0155] As can be seen from the field efficacy test in Table 7, the ternary compound pesticide of the present invention has a good control effect on cutworms in corn fields and reduces the incidence of diseased plants.

[0156] Example 5: Field efficacy trial of different pesticide treatments for controlling peanut grubs

[0157] The experiment was conducted in a peanut field in Yuanshang Town, Laixi City, Shandong Province. The field was a peanut field with continuous cropping, and underground pests of peanuts had been occurring frequently for several years. The soil, cultivation, and water and fertilizer management conditions were consistent across all experimental plots, with manual ridging as the method of preparation.

[0158] Peanut tested: Huayu 22.

[0159] Test subject: grubs.

[0160] Application time: Conventional seed treatment was applied 1 day before sowing, and the sowing date was May 6, 2021. The experimental plot was irrigated before sowing, and sowing began when the plot was ready for planting. Two peanut seeds were sown per hole, with a hole spacing of 16 cm and a row spacing of 40 cm, and then covered with soil.

[0161] Experimental Design: The experiment adopted a randomized block design, with each plot lasting 30m. 2 Each treatment was repeated 4 times.

[0162] Peanut emergence status: 50 holes were randomly selected from each plot, the peanut emergence status was recorded, the emergence rate was calculated, and the peanut growth was observed.

[0163] Insect population density: At peanut harvest, 10 points were sampled in a "Z" pattern in each treatment plot. The excavated area at each point was 50cm long × 50cm wide × 30cm deep. The number of surviving insects was recorded.

[0164] Damage Index: At peanut harvest, samples were taken from 5 points in a "Z" pattern in each treatment plot, with 10 peanut plants surveyed at each point. The pods were graded using a 5-level grading standard.

[0165] Grade 0: Pods are intact and show no signs of damage;

[0166] Grade 1: The pericarp is damaged, but the kernel is intact;

[0167] Level 2: Less than half of the pods are damaged;

[0168] Level 3: 1 / 2 to 3 / 4 of the pods are damaged;

[0169] Level 4: More than 3 / 4 of the pods are damaged. Statistical analysis of the number of peanut pods damaged at each level.

[0170] From the time peanuts emerged after sowing to before harvest, their field growth was observed irregularly, and no obvious symptoms of pesticide damage were found.

[0171] Methods for calculating drug efficacy:

[0172]

[0173]

[0174]

[0175]

[0176] Table 8. Results of field efficacy trials of different pesticides for controlling peanut grubs.

[0177]

[0178]

[0179] As shown in Table 8, the ternary compound pesticides all exhibited significant control effects against peanut grubs. Compared with the blank control pesticide treatment, the disease index was reduced, demonstrating good insect control and pest prevention effects.

[0180] Indoor toxicity tests and field trials showed that the combination of bromocyanamide, lambda-cyhalothrin, and thiamethoxam or thiamethoxam described in this invention exhibits good control effects against underground pests such as cutworms and grubs. The pesticide composition or formulation obtained by this invention has significant efficacy, can significantly increase plant resistance, and is superior to single agents in delaying the development of resistance and prolonging pesticide retention. Furthermore, it is safe for crop seeds and exhibits good tolerance.

[0181] Although the present invention has been described in detail above with general description and specific embodiments, some modifications or improvements can be made to it based on the present invention, which will be obvious to those skilled in the art. Therefore, all such 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 containing cyantraniliprole, characterized in that, The pesticide composition comprises active ingredient A, active ingredient B and active ingredient C, the active ingredient A is cyantraniliprole, the active ingredient B is lambda-cyhalothrin, and the active ingredient C is clothianidin, the mass ratio of the active ingredient A, the active ingredient B and the active ingredient C is (1-10):(1-9):(1-10).

2. The pesticidal composition according to claim 1, characterized in that, The active ingredient accounts for 1% to 80% of the pesticide composition, based on the total weight of the pesticide composition being 100 wt%.

3. The pesticidal composition according to claim 2, characterized in that, The active ingredient accounts for 2% to 70% of the pesticide composition, based on the total weight of the pesticide composition being 100 wt%.

4. The pesticidal composition according to claim 1, characterized in that, The pesticide composition further comprises an auxiliary agent selected from one or more of wetting agents, dispersants, emulsifiers, thickening agents, disintegrating agents, antifreezing agents, antifoaming agents, solvents, preservatives, stabilizers, warning colors, film forming agents, synergists and carriers.

5. The pesticidal composition according to claim 1, characterized in that, The pesticide composition can be prepared into any one of the following formulation forms acceptable in agriculture: seed treatment dry powder, seed treatment dispersible powder, seed treatment liquid, seed treatment emulsion or seed treatment suspension.

6. The pesticidal composition according to claim 5, characterized in that, The formulation form is seed treatment suspension.

7. Use of a pesticide composition according to any one of claims 1 to 6 for controlling plant pests, characterized in that, The plants are corn and / or peanuts, and the pests are wireworms and / or grubs.

8. Use according to claim 7, characterized in that, The pesticide composition is applied to plants, plant propagation materials or plant organs grown later and cultivation media, cultivation materials or cultivation spaces in an effective dose.

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