CN117546858A - Insecticidal composition for preventing and controlling lepidoptera, hemiptera and thysanoptera pests and application thereof - Google Patents
Insecticidal composition for preventing and controlling lepidoptera, hemiptera and thysanoptera pests and application thereof Download PDFInfo
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- CN117546858A CN117546858A CN202311441797.4A CN202311441797A CN117546858A CN 117546858 A CN117546858 A CN 117546858A CN 202311441797 A CN202311441797 A CN 202311441797A CN 117546858 A CN117546858 A CN 117546858A
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- CXEGAUYXQAKHKJ-NSBHKLITSA-N emamectin B1a Chemical compound C1=C[C@H](C)[C@@H]([C@@H](C)CC)O[C@]11O[C@H](C\C=C(C)\[C@@H](O[C@@H]2O[C@@H](C)[C@H](O[C@@H]3O[C@@H](C)[C@H](NC)[C@@H](OC)C3)[C@@H](OC)C2)[C@@H](C)\C=C\C=C/2[C@]3([C@H](C(=O)O4)C=C(C)[C@@H](O)[C@H]3OC\2)O)C[C@H]4C1 CXEGAUYXQAKHKJ-NSBHKLITSA-N 0.000 claims abstract description 47
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P7/00—Arthropodicides
- A01P7/04—Insecticides
Abstract
The invention discloses an insecticidal composition for preventing and controlling lepidoptera, hemiptera and thysanoptera pests and application thereof, wherein the insecticidal composition comprises the active ingredients of HNPC-A18237 and emamectin benzoate, and the mass ratio of HNPC-A18237 to emamectin benzoate is 5-1:1-5. The insecticidal composition can be applied to control lepidoptera, hemiptera and thysanoptera pests, has obvious synergistic effect, is superior to single effective components in quick acting and lasting effect, reduces the drug resistance risk of pests to emamectin benzoate, widens the application field of HNPC-A18237, reduces the dosage and cost of medicaments, is beneficial to environmental protection, and is effective in controlling lepidoptera, hemiptera and thysanoptera pests of vegetables, rice, fruit trees and flowers.
Description
Technical Field
The invention relates to the technical field of pesticides, in particular to an insecticidal composition for preventing and controlling lepidoptera, hemiptera and thysanoptera pests and application thereof.
Background
HNPC-A18237 is a novel 1-pyridylpyrazole amide pesticide with excellent insecticidal activity, and the chemical name of the pesticide is 3-bromo-1- (3-chloropyridin-2-yl) -N- (2, 4-dichloro-6- (ethylcarbamoyl) phenyl) -N-methyl-1H-pyrazole-5-carboxamide. The chemical structural formula of HNPC-A18237 is shown in formula 1.
Chinese patent document CN111662269B discloses the preparation process, structural formula, physical properties and use of compound HNPC-a 18237. The HNPC-A18237 has wide insecticidal spectrum, can be used for preventing and controlling various pests on various crops such as rice, vegetables, oranges, flowers and the like, for example, armyworms (Mythimna separata) of lepidoptera, spodoptera exigua (Spodoptera exigua (Hubiner)), prodenia litura (Fabriius)), plutella xylostella (Plutella xylostella), cabbage caterpillars (Pieris rapae Linne), rice leaf rollers (Cnaphalocrocis medinalis (Guenee)), chilo suppressalis (Chilo suppressalis), aphids of hemiptera (Aphidodeida), whiteflies (Aleyrodidae), thrips of Thysanoptera and the like, has a certain touch-killing activity and systemic activity mainly by stomach toxicity, has a good quick-acting property, long lasting period, has a higher biological activity on first-stage or low-age larvae of lepidoptera pests, has a certain inhibition effect on hatching eggs of lepidoptera pests, and has a specific effect on the aphid sucking through the mouth-piercing. However, how the insecticidal effect of the HNPC-A18237 compounded with different compounds needs to be further studied.
The emamectin benzoate, namely 'emamectin benzoate', is a novel efficient semisynthetic antibiotic insecticidal acaricide synthesized from a fermentation product avermectin B1, has the characteristics of super-high efficiency, low toxicity (the preparation is near non-toxic), low residue, no public hazard and other biological pesticides, takes stomach toxicity effect as a main part, and mainly shows insecticidal effect by acting on insect GABA receptors. The chemical structural formula of the emamectin benzoate is shown as formula 2.
The emamectin benzoate is widely used for preventing and controlling various pests on crops such as vegetables, fruit trees, cotton and the like, has extremely high insecticidal activity on larvae of lepidoptera insects, but has relatively low insecticidal activity on other pests, and a large number of emamectin benzoate is repeatedly used in recent years, so that the lepidoptera insects have different degrees of drug resistance on the pesticides, the field use dosage of the pesticide is increased continuously, and the use cost is increased. Therefore, the search for an effective compound scheme has positive significance for solving the problem of drug resistance cost of emamectin benzoate and improving the drug effect.
The mixing of different pesticide varieties is an effective scheme for delaying the drug resistance of pests, but the compounding effect is different, and the research and development of the pesticide composition which is efficient, low in toxicity and friendly to the environment has important significance for the sustainable development of agriculture.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and particularly aims to solve the technical problems of reducing the drug resistance risk of pests to emamectin benzoate and widening the application field of HNPC-A18237, and provides an insecticidal composition for preventing and treating lepidoptera, hemiptera and thysanoptera pests, which has good prevention and treatment effect, quick response, good persistence, low drug resistance risk, low dosage and low cost, and application thereof.
In order to solve the technical problems, the invention adopts the following technical scheme.
An insecticidal composition for controlling lepidoptera, hemiptera and thysanoptera pests, wherein the insecticidal composition comprises the active ingredients of HNPC-A18237 and emamectin benzoate, wherein the chemical name of the HNPC-A18237 is 3-bromo-1- (3-chloropyridin-2-yl) -N- (2, 4-dichloro-6- (ethylcarbamoyl) phenyl) -N-methyl-1H-pyrazole-5-carboxamide, and the mass ratio of HNPC-A18237 to emamectin benzoate is 5-1:1-5.
The insecticidal composition for controlling lepidoptera, hemiptera and thysanoptera pests, preferably, the sum of the mass of HNPC-A18237 and the mass of emamectin benzoate accounts for 10-70% of the total mass of the insecticidal composition.
The insecticidal composition for controlling lepidoptera, hemiptera and thysanoptera pests is preferably one of an aqueous emulsion, a microemulsion, a suspending agent, an emulsifiable concentrate, wettable powder and water dispersible granules.
The insecticidal composition for controlling lepidoptera, hemiptera and thysanoptera pests preferably further comprises a pesticide auxiliary agent, wherein the pesticide auxiliary agent is one or more of capsule shell materials, dispersing agents, wetting agents, disintegrating agents, antifreezing agents, thickening agents, antifoaming agents, emulsifying agents, solvents, PH regulators, fillers and water.
The invention also provides an application of the insecticidal composition for controlling lepidoptera, hemiptera and thysanoptera pests as a general technical concept.
For the above-mentioned applications, preferably, the lepidopteran, hemipteran and thysanopteran pests are lepidopteran, hemipteran and thysanopteran pests of vegetable, rice, fruit or flower crops.
Compared with the prior art, the invention has the advantages that:
(1) The invention provides an insecticidal composition, the active ingredient is HNPC-A18237 and emamectin benzoate of 3-bromo-1- (3-chloropyridine-2-yl) -N- (2, 4-dichloro-6- (ethylcarbamoyl) phenyl) -N-methyl-1H-pyrazole-5-carboxamide, the invention discovers that HNPC-A18237 and emamectin benzoate are compounded to show obvious synergistic effect on the basis of indoor screening and field experiments, the invention is superior to single active ingredient in quick-acting property, lasting property and the like, the control effect can be effectively improved, the dosage of the active ingredient is reduced, the pollution of the medicament to the environment is reduced, the cost is reduced, and the invention can effectively control lepidoptera, hemiptera and thysanoptera pests of vegetables, rice, fruit trees and flowers and crops.
(2) In the insecticidal composition, the action mechanisms of two effective components of HNPC-A18237 and emamectin benzoate are different, and the application of the insecticidal composition obtained by compounding HNPC-A18237 and emamectin benzoate can obviously delay or overcome the generation of drug resistance of pests, prolong the service life and be beneficial to comprehensive treatment of the pests.
(3) The insecticidal composition can simultaneously control a plurality of pests by once application, and the dosage of the composition is reduced by compounding the medicines, so that the cost is reduced, the pollution to the environment is lightened, the insecticidal composition is safe to crops, the use value is high, and the application prospect is good.
Detailed Description
The invention is further described below in connection with specific preferred embodiments, but it is not intended to limit the scope of the invention. The materials and instruments used in the following examples are commercially available, and the proportions in the following examples are mass percentages unless otherwise indicated.
The invention relates to an insecticidal composition for preventing and controlling lepidoptera, hemiptera and thysanoptera pests, which comprises the active ingredients of HNPC-A18237 and emamectin benzoate, wherein the chemical name of the HNPC-A18237 is 3-bromo-1- (3-chloropyridin-2-yl) -N- (2, 4-dichloro-6- (ethylcarbamoyl) phenyl) -N-methyl-1H-pyrazole-5-carboxamide, and the mass ratio of the HNPC-A18237 to the emamectin benzoate is 5-1:1-5.
Preferably, the sum of the mass of HNPC-A18237 and the mass of emamectin benzoate accounts for 10 to 70 percent of the total mass of the insecticidal composition.
Preferably, the formulation of the insecticidal composition is one of aqueous emulsion, microemulsion, suspending agent, emulsifiable concentrate, wettable powder and water dispersible granule.
Preferably, the insecticidal composition further comprises an agricultural chemical auxiliary agent, wherein the agricultural chemical auxiliary agent is one or more than two of capsule shell materials, dispersing agents, wetting agents, disintegrating agents, antifreezing agents, thickening agents, defoaming agents, emulsifying agents, solvents, PH regulators, fillers and water.
The insecticidal composition for controlling lepidoptera, hemiptera and thysanoptera pests can be applied to controlling lepidoptera, hemiptera and thysanoptera pests, especially lepidoptera, hemiptera and thysanoptera pests of vegetables, rice, fruit trees and flowers.
1. Combined virulence assay
Indoor toxicity test was performed on HNPC-A18237 and emamectin benzoate by blending 97% of HNPC-A18237 and 97% of emamectin benzoate. The co-toxicity coefficient method (CTC) proposed by Sun & Johnson (1960) was used to evaluate the combined effect.
The calculation formula of the co-toxicity coefficient is as follows
The theoretical toxicity index of the mixture (TTI) =the toxicity index of agent a×the percentage (%) of agent a in the mixture+the toxicity index of agent b×the percentage (%) of agent B in the mixture;
generally, a co-toxicity coefficient greater than 120 indicates a synergistic effect, less than 80 is antagonistic and between 80 and 120 is additive.
Example 1: HNPC-a18237 and emamectin benzoate combination to lepidopteran armyworm.
Test target: indoor tired rearing of armyworm three-instar larvae with the same size and physiological state.
The test method comprises the following steps: reference is made to the biological standard method NY/T1154.9-2008. The spray method is adopted: preparing a mother solution with a certain concentration from a reagent to be tested, diluting the mother solution into 6 concentrations with clear water for later use, and setting the clear water as a contrast. Cutting fresh corn seedling leaf into leaf segments of 80-90mm, placing into culture dish (diameter of 90 mm) with moisturizing filter paper, placing 4 leaf segments into each dish, selecting 4 hr-starved larvae of myxoma 3 years old into the culture dish, spraying at a spray tower for 4 times, covering, and placing in a viewing positionAnd (5) culturing in a room. After 72 hours, the death condition of the test insects is investigated and recorded, the death rate (%) is calculated, and the virulence regression equation, the correlation coefficient (r) and the middle Lethal Concentration (LC) are obtained according to a probability value analysis method 50 )。
TABLE 1 toxicity determination (72 h) of HNPC-A18237 and emamectin benzoate in different proportions against Lepidoptera armyworm
As shown in Table 1, HNPC-A18237 and emamectin benzoate in the mass ratios of 5:1, 3:1, 1:1, 1:3 and 1:5 showed significant synergism to the armyworm, LC 50 The values were 0.26mg/L, 0.22mg/L, 0.15mg/L, 0.13mg/L and 0.12mg/L, respectively, and the co-toxicity coefficients were 126.89, 136.67, 153.11, 144.31 and 149.25, respectively.
Example 2: HNPC-A18237 and emamectin benzoate are compounded to carry out combined toxicity determination test on lepidoptera plutella xylostella.
Test target: indoor tired breeding of cabbage plutella xylostella three-instar larvae with the same size and physiological state.
The test method comprises the following steps: reference is made to the biological standard method NY/T1154.14-2008. Immersion She Diefa was used. The cabbage is beaten into leaf discs by a puncher with the diameter of 18mm, the leaf discs are soaked in the liquid medicine to be tested for 10 seconds, then the leaf discs are put into a culture dish (with the diameter of 90 mm) filled with moisturizing filter paper, 5 leaf discs are put into each dish, after the leaf discs are naturally dried, 3-year larvae of plutella xylostella starved for 4 hours are selected into the culture dish, each dish is not lower than 10 heads, 4 times of repetition are carried out, after the treatment is finished, the dish cover is covered, and the leaf discs are put into an observation room for culture. After 72 hours, the death condition of the test insects is investigated and recorded, the death rate (%) is calculated, and the virulence regression equation, the correlation coefficient (r) and the middle Lethal Concentration (LC) are obtained according to a probability value analysis method 50 )。
TABLE 2 toxicity determination (72 h) of HNPC-A18237 and emamectin benzoate in different proportions for Lepidoptera Plutella xylostella
As shown in Table 2, HNPC-A18237 and emamectin benzoate in the mass ratio of 5:1, 3:1, 1:1, 1:3 and 1:5 show obvious synergism on plutella xylostella, and LC thereof 50 The values were 1.17mg/L, 0.95mg/L, 0.61mg/L, 0.50mg/L and 0.46mg/L, respectively, and the co-toxicity coefficients were 125.77, 132.82, 146.99, 139.37 and 140.19, respectively.
Example 3: HNPC-a18237 and emamectin benzoate combination test for combined virulence determination of hemiptera aphids.
Test target: the indoor tired breeding individuals are the broad bean aphids with the same size and physiological state and the 3-day-old Aphis praecox.
The test method comprises the following steps: reference is made to the biological standard method NY/T1154.6-2006. Adopts an insect immersing method: cutting off broad bean seedlings with 3-day-old Aphis aphis, soaking in the prepared medicinal liquid for 10 seconds, taking out, sucking the residual medicinal liquid around plants and insects with filter paper, inserting onto water-absorbing sponge, covering Ma Dengzhao, repeating for 4 times, and culturing in a viewing chamber. After 48 hours, the death condition of the test insects is investigated and recorded, the death rate (%) is calculated, and the virulence regression equation, the correlation coefficient (r) and the middle Lethal Concentration (LC) are obtained according to a probability value analysis method 50 )。
TABLE 3 toxicity determination (48 h) of HNPC-A18237 and emamectin benzoate and aphids of Hemiptera in different proportions
As shown in Table 3, HNPC-A18237 and emamectin benzoate were mixed in a mass ratio of 5:1, 3:1, 1:1, 1:3 and 1:5 to show significant synergy against aphids, LC 50 The values were 0.23mg/L, 0.22mg/L, 0.21mg/L, 0.28mg/L and 0.27mg/L, respectively, and the co-toxicity coefficients were 136.17, 148.51, 177.27, 154.79 and 168.28, respectively.
Example 4: HNPC-A18237 and emamectin benzoate combination test for combined virulence determination of Thysanoptera thrips.
Test target: and (3) indoor tired feeding cowpea thrips adults with the same size and physiological state of individuals.
The test method comprises the following steps: reference is made to the biological standard method NY/T1154.6-2006. Adopts an insect immersing method: cutting cowpea leaves with adult thrips, soaking in the prepared medicinal liquid for 10 s, taking out, sucking the residual medicinal liquid around plant and insect with filter paper, placing into a culture dish (diameter of 90 mm) with moisturizing filter paper, sealing the mouth of the dish with preservative film, pricking holes with needle on the film for ventilation for 4 times, repeating, and culturing in observation room. After 72 hours, the death condition of the test insects is investigated and recorded, the death rate (%) is calculated, and the virulence regression equation, the correlation coefficient (r) and the middle Lethal Concentration (LC) are obtained according to a probability value analysis method 50 )。
TABLE 4 toxicity determination (72 h) of HNPC-A18237 and emamectin benzoate at different ratios on thrips thysanoptera
As shown in Table 4, HNPC-A18237 and emamectin benzoate in the ratios of 5:1, 3:1, 1:1, 1:3 and 1:5 showed significant synergy against thrips, LC 50 The values were 3.02mg/L, 2.36mg/L, 1.29mg/L, 1.05mg/L and 0.93mg/L, respectively, and the co-toxicity coefficients were 129.67, 134.56, 156.08, 141.25 and 146.20, respectively.
2. Field efficacy test
Test agent 1:15% HNPC-A18237. Emamectin benzoate (12+3) aqueous emulsion
HNPC-A18237 12%, emamectin benzoate 3%, triphenyl ethylphenol polyoxyethylene polyoxypropylene segmented copolymer (emulsifier) 10%, ethylene glycol (antifreezing agent) 2%, butyl acetate (solvent) 15%, ethylene glycol stearate (defoamer) 0.5% and water up to 100%, and then the 15% HNPC-A18237-emamectin benzoate aqueous emulsion is prepared by high-speed shearing and emulsification after mixing.
Test agent 2:12% HNPC-A18237. Emamectin benzoate (9+3) suspending agent
HNPC-A18237 9%, emamectin benzoate 3%, naphthalene sulfonate formaldehyde condensate (dispersing agent) 4%, sodium succinate sulfonate (wetting agent) 3%, polyvinylpyrrolidone (thickening agent) 0.1%, propylene glycol (antifreezing agent) 1%, simethicone (antifoaming agent) 0.1% and water up to 100%, and then grinding after mixing to obtain 12% HNPC-A18237 emamectin benzoate suspending agent.
Control agent 1:5% HNPC-A18237 emulsifiable concentrate
Control agent 2:5% emamectin benzoate microemulsion
Example 5: HNPC-A18237, emamectin benzoate and a pesticide effect test of the composition for preventing and controlling cabbage plutella xylostella in fields.
The test method comprises the following steps: the field efficacy test is strictly carried out according to the national standard of the people's republic of China (GB/T17980.13-2000). The soil cultivation level of the test field is medium, the stucco soil quality is good, and the drainage and irrigation are convenient. Each treatment was repeated 4 times with a random block arrangement. The number of insect population was investigated before administration, and once each of 1, 3 and 7 days after administration, 4 times in total. 5 points are marked randomly in each district, 2 plants and 10 plants are investigated at each point, the number of pests on the leaf of each plant of cabbage is respectively investigated, the number of living pests is counted, and the rate of reduction of insect population and the prevention and control effect are calculated.
Rate of reduction of insect population (%) = (number of insect population before treatment-number of surviving insect population after treatment)/number of insect population before treatment x 100;
control effect (%) = [1- (number of insects before treatment area × number of insects after treatment area)/(number of insects after treatment area × number of insects before treatment area) ] ×100.
Table 5HNPC-A18237, emamectin benzoate and results of field efficacy test of compositions thereof against cabbage plutella xylostella
Note that: the Duncan new complex pole difference test was performed and those with the same letters in the table indicated that the differences between treatments were not significant (lowercase p=0.05, uppercase p=0.01).
From Table 5, it can be seen that the pesticide composition of the present invention has a control effect on cabbage diamondback moth of over 60.02% 1 day after administration, which is significantly better than that of a single dose. The pesticide composition has the control effect on cabbage plutella xylostella of more than 74.83% after 3 days and 7 days of pesticide application, and is obviously superior to a single dose, which indicates that the pesticide composition is superior to a single dose in quick acting and lasting effect, is safe to cabbage and has no phytotoxicity.
Example 6: HNPC-A18237, emamectin benzoate and a pesticide effect test for preventing and controlling cowpea thrips in the field by the composition.
The test method comprises the following steps: the field efficacy test is strictly carried out according to the industry standard of the people's republic of China (NY/T1464.6-2007). The soil cultivation level of the test field is medium, the stucco soil quality is good, and the drainage and irrigation are convenient. Each treatment was repeated 4 times with a random block arrangement. The number of insect population was investigated before administration, and once each of 1, 3, 7 and 10 days after administration was investigated for 5 times. Sampling 5 points in each cell, investigating 2 strains in each point, fixedly selecting 3 beans in each strain, and investigating the number of live nymphs. Calculating the rate of reduction of insect population and the prevention and control effect. Rate of reduction of insect population (%) = (number of insect population before treatment-number of surviving insect population after treatment)/number of insect population before treatment x 100;
control effect (%) = (1- (number of insects before control area drug x number of insects after treatment area drug)/(number of insects after control area drug x number of insects before treatment area drug)) ×100.
Table 6 HNPC-a18237, emamectin benzoate and results of field efficacy test of compositions thereof against cowpea thrips
Note that: the Duncan new complex pole difference test was performed and those with the same letters in the table indicated that the differences between treatments were not significant (lowercase p=0.05, uppercase p=0.01).
From Table 6, it can be seen that the pesticide composition of the invention has a control effect on cowpea thrips of more than 81.12% 1 day after application, which is obviously better than that of a single dose. The pesticide composition has the control effect on cowpea thrips of more than 83.72 percent after 3 days, 7 days and 10 days after the pesticide is applied, and is obviously better than a single agent, so that the pesticide composition is better than a single agent in quick acting and lasting effect, is safe to cowpea and has no phytotoxicity.
The above description is only of the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. While the invention has been described in terms of preferred embodiments, it is not intended to be limiting. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present invention or equivalent embodiments using the method and technical solution disclosed above without departing from the spirit and technical solution of the present invention. Therefore, any simple modification, equivalent substitution, equivalent variation and modification of the above embodiments according to the technical substance of the present invention, which do not depart from the technical solution of the present invention, still fall within the scope of the technical solution of the present invention.
Claims (6)
1. The insecticidal composition for controlling lepidoptera, hemiptera and thysanoptera pests is characterized in that the active ingredients of the insecticidal composition are HNPC-A18237 and emamectin benzoate, wherein the chemical name of the HNPC-A18237 is 3-bromo-1- (3-chloropyridin-2-yl) -N- (2, 4-dichloro-6- (ethylcarbamoyl) phenyl) -N-methyl-1H-pyrazole-5-carboxamide, and the mass ratio of the HNPC-A18237 to the emamectin benzoate is 5-1:1-5.
2. The insecticidal composition for controlling lepidopteran, hemipteran and thysanoptera pests according to claim 1, wherein the sum of the mass of HNPC-a18237 and emamectin benzoate is 10% to 70% of the total mass of the insecticidal composition.
3. The insecticidal composition for controlling lepidopteran, hemipteran and thysanoptera pests according to claim 1 or 2, wherein the formulation of the insecticidal composition is one of an aqueous emulsion, a microemulsion, a suspension concentrate, an emulsifiable concentrate, a wettable powder and a water dispersible granule.
4. The insecticidal composition for controlling lepidopteran, hemipteran and thysanoptera pests according to claim 1 or 2, further comprising a pesticidal adjuvant, wherein the pesticidal adjuvant is one or more of a capsule shell material, a dispersing agent, a wetting agent, a disintegrating agent, an antifreezing agent, a thickening agent, a defoaming agent, an emulsifying agent, a solvent, a PH regulator, a filler and water.
5. Use of a pesticidal composition according to any one of claims 1 to 4 for controlling lepidopteran, hemipteran and thysanopteran pests.
6. The use according to claim 5, wherein the lepidopteran, hemipteran and thysanopteran pests are lepidopteran, hemipteran and thysanopteran pests of vegetable, rice, fruit or flower crops.
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