Pest-control chemical for broccoli and preparation method of pest-control chemical

Abstract

The invention provides a pest-control chemical for broccoli and a preparation method of the pest-control chemical. The pest-control chemical comprises dried orange peel, Pseudolarix amailis bark, folium artemisiae argyi, dried chili, Artemisia apiacea, garlic, calamus, pyrethrin and Euphorbia helioscopia L.. The preparation method includes the steps of firstly, weighing the components according to weight, adding water with the weight being 5-10 times of the weight of the components, decocting at 80-100 DEG C for 30-50 minutes, cooling, and filtering to obtain filtrate; secondly, adding water into the filtration residues, decocting, filtering, repeating twice, and combining obtained filtrate; thirdly, concentrating the combined filtrate to obtain the pest-control chemical. The pest-control chemical has the advantages that the broccoli can be effectively prevented from being affected by pests during growth, the health and high-quality broccoli can be obtained, the pest-control chemical is safe and free of pollution, damage, caused by pesticide residues, on human health is avoided, food safety is increased, and the pest-control chemical is suitable for being used by farmers and good in application value and environment protection significance.

Description

technical field [0001] The invention relates to the technical field of agricultural pest control, in particular to a broccoli pest control agent and a preparation method. Background technique [0002] Broccoli is also called broccoli and green cauliflower. It is a high-quality vegetable with high nutritional value. It has the functions of health care and beauty. It is a high-end vegetable that is popular all over the world. In recent years, due to the increase in consumer demand and the adjustment of the agricultural industry structure, the planting area has increased year by year. With the development of the broccoli industry and the increase in the number of years of planting, various diseases have become more and more obvious. At present, when people control broccoli growth pests, generally The use of high-concentration pesticide spraying, although it can achieve a therapeutic effect, will pollute the environment, and the residual pesticide will also cause harm to humans ...

AI Technical Summary

Problems solved by technology

[0002] Broccoli is also called broccoli and green cauliflower. It is a high-quality vegetable with high nutritional value. It has the functions of health care and beauty. It is a high-end vegetable that is popular all over the world. In recent years, due to the increase in consumer demand and the adjustment of the agricultural industry structure, the planting area has increased year by year. With the development of the broccoli industry and the increase in the number of years of planting, various diseases have become more and more obvious. At present, when people control broccoli growth pests, generally The use of high-concentration pesticide spraying, although it can achieve a therapeutic effect, will pollute the environment, and the residual pesticide will also cause harm to humans or animals, and excessive use will affect broccoli plants, such as burning seedlings and other symptoms Therefore, it is of great significance and application value to research and develop an insecticide that can effectively prevent the influence of insect pests in the growth process of broccoli, cauliflower, etc., and has environmental protection performance.