Plant insecticide

Abstract

The present invention relates to a compound pesticide with good effect for killing tea scale louse, green leafhopper, mites and aphis, etc. Said compound pesticide is made up by using organic solvent extracts of hot pepper, chinaberry root bark and willow-leaved smartweed through a certain preparation process. Besides, said invention also provides the concrete steps of said preparation process.

Description

technical field [0001] The invention relates to a plant-derived insecticide, in particular to a mixed insecticide which uses organic solvent extracts of plants such as capsicum, neem bark or fruit, and Polygonum capsicum as main raw materials. Background technique [0002] Research and development of biopesticides with low toxicity, easy decomposition in the atmosphere, soil, water, and crops, no residue, good environmental compatibility, high activity, and good safety are an important direction for the development of pesticides in the 21st century. The residues and resistance of chemical pesticides in use make the residues of harmful substances in vegetables, fruits, grains, tea and other foods too high, which seriously threatens human health. Extensive use of chemical pesticides pollutes the environment and food, causing serious harm to livestock, poultry and beneficial organisms, destroying biodiversity, and posing a great threat to human health. The result of long-term ...

AI Technical Summary

Problems solved by technology

[0007] So far, there is no compound insecticide based on three plants of pepper, neem bark or fruit, and Polygonum capsicum, or based on three plants of pepper, neem bark or fruit, and Polygonum