Composite pesticide used for prevention and control of harmful insect of rice

Abstract

A series of three composite insecticides for preventing and eliminating the pests of paddy rice has respective active components: 2-dimethylamino-1-sodium thiosulfonate-yl-propane, 0,0-diethyl-0-alpha-cyanobenzylideneamino thionophosphate, 0, (4-bromo-2-chlorophenyl) 0-ethyl-S-propylthiol phosphate, and 4'-epi-methylamino-4'-deoxyabamectin B1 benzoate.

Description

technical field [0001] The invention relates to a compound insecticide capable of preventing and controlling pests such as rice stem borers and rice leaf rollers. 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 borer and leaf roller all over the rice areas of my country. According to statistics, the annual damage area is about 1.5 billion mu . Rice stem borer and rice leaf roller are both Lepidoptera pests. Borers are moth-eating pests, which form dead cores at the tillering stage and white ears at the heading stage. In recent years, because the ecological conditions are favorable for the occurrence of rice pests, the pests have seriously threatened 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,...

AI Technical Summary

Problems solved by technology

Rice leaf roller damages rice leaves and forms white leaves, which affects rice photosynthesis, especially in the late growth period of rice, causing serious yield loss