Insecticidal combination containing o-phenylenediamine insecticide and pymetrozine

Abstract

The invention relates to an insecticidal combination containing o-phenylenediamine insecticide and pymetrozine. The insecticidal combination is characterized in that active components of the insecticidal combination are o-phenylenediamine insecticide A and pymetrozine, and the remaining are auxiliary components for preparing pesticide formulations. The weight part ratio of the active component o-phenylenediamine insecticide A to pymetrozine is (1-30):(5-35). The pesticide formulations capable of being prepared from the insecticidal combination comprise wettable powder, suspending agent, soluble liquid, emulsion in water and water dispersible granules. The total weight parts of the active components o-phenylenediamine insecticide A and pymetrozine account for 5-40% the total weight parts of the formulations. The insecticidal combination has an obvious synergistic effect, the insecticidal spectrum is expanded, the pesticide amount is reduced, the control effect is improved, residue is less, the duration is long, and the insecticidal combination is favorable for delaying pesticide resistance of pests and environmental protection.

Description

technical field [0001] The invention relates to the technical field of pesticide compounding, in particular to an insecticidal composition containing o-phenylenediamine insecticides and pymetrozine. Background technique [0002] The chemical structural formula of o-phenylenediamine insecticide A is as follows: [0003] , [0004] The insecticide is a new insecticide compound announced by Syngenta, and its mechanism of action is currently disclosed as a ryanodine receptor agent. There are no more experimental reports or publications, and there is no disclosure of field tests in the field of compounding. [0005] Pymetrozine, alias: pyrazinone, English name: pymetrozine, molecular formula: C 10 h 11 N 50 , chemical name: 4,5-dihydro-6-methyl-4-(3-pyridinemethyleneamino)-1,2,4-3(2H)-one, with high efficiency, low toxicity and high selectivity , friendly to the environment and other characteristics, in line with the current development direction of pesticides. Its struct...

AI Technical Summary

Problems solved by technology

However, after a large number of applications of pymetrozine in recent years, the insecticidal effect has declined significantly, which seriously affects the application prospect of this single agent.

[0008] Long-term use of a single insecticide will easily lead to insect resistance and increase the amount of pesticide used, leading to adverse consequences such as high toxicity, large dosage, large residues, and poor efficacy, and the field of action is relatively single

However, the research and development of pesticide compounds requires a long research and development cycle, and the work of screening compound structures is very complicated, which cannot be undertaken by ordinary research and development institutions.

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