Compound pesticide composition, application and preparation thereof

Abstract

The invention discloses a compound pesticide composition, which contains N-benzoyl-N'-tert-butyl benzhydrazide and epimethylamino-4''-deoxyavermectin b1 benzoate. The invention further discloses application of the composite pesticide composition on prevention and treatment of crop lepidoptera pests comprising cnaphalocrocis medinalis, stem borer, cotton bollworm, plutella xylostella, beet armyworm and the like, and a compound pesticide based on the compound pesticide composition. The compound pesticide composition provided by the invention has a remarkable effect on the prevention and treatment of the lepidoptera pests, in particular to the cnaphalocrocis medinalis, and has the characteristics of being low in toxicity, residues and cost, and friendly to environment, so that the compound pesticide composition has broad prospects, great social and economic benefits and direct economic benefits.

Description

technical field [0001] The invention relates to a compound insecticidal drug composition, which belongs to the field of pesticides. Background technique [0002] Rice is the food crop with the widest and largest planting area in China. Its pests and diseases have the highest frequency of occurrence and the most serious damage, especially the occurrence of rice leaf rollers throughout my country's rice areas. According to statistics, the annual damage area is about 1.5 billion mu. Rice leaf rollers and stem borers are both Lepidoptera pests. In recent years, because the ecological conditions are favorable to the occurrence of rice pests, they have been rampant year after year, seriously threatening my country's food production and safety. Generally, the loss of rice is 5-10%, and the rice yield is reduced by 10-20% in a major occurrence year, and some heavy fields lose 40-50%, or even no harvest. At present, the control of rice leaf rollers still relies on chemical agents, ...

AI Technical Summary

Problems solved by technology

At present, the control of rice leaf rollers still relies on chemical agents, mainly organic phosphorus such as profenofos and chlorpyrifos, and biological agents such as abamectin and emamectin benzoate. These agents are quick-acting to young larvae. Good performance, low cost, rich drug resources, but poor long-lasting effect (about 5 days); poor control effect on larvae above the first instar, monosultap and dual-sultap have slightly better long-lasting effects (about 7 days), cost It is also low, but it is also very poor for the knockdown of larvae above the first instar. In addition, due to the long-term repeated use of the above-mentioned pesticides, the resistance of the pests is enhanced, and the effective dosage per mu is increasing year by year, and the control effect is still unsatisfactory.

The new drugs (such as Kangkuan, indoxacarb, etc.) newly launched by foreign pesticide companies are expensive