Pesticide for control of rice leaf folder

Abstract

The invention relates to a pesticide for control of rice leaf folder. The pesticide comprises two active ingredients of emamectin benzoate and pyriproxyfen, and the weight ratio of emamectin benzoate to pyriproxyfen is 2:83. By use of effective doses of the emamectin benzoate, pyriproxyfen, a solid or liquid carrier, an assistant and other additives for processing the rice leaf roller or its habitats, the pesticide overcomes the defect of a short period of persistent effect in the prior art, shows an obvious synergistic effect, can process the rice leaf roller by a small dosage, can show excellent contact-kiling property, stomach toxicity and ovicidal effect, is long in period of persistent effect, and enhances quick killing activity on the rice leaf roller.

Description

technical field [0001] The invention relates to an insecticide for controlling the rice leaf roller, in particular to an insecticide for controlling the rice leaf roller which has contact killing, stomach toxicity and ovicidal effects. Background technique [0002] The rice leaf roller is the most important migratory pest that harms rice, and a small amount of it overwinters in areas south of 30°N latitude in China. The occurrence algebra in different places in one year is quite different due to the difference in the time of immigration. For example, 2-3 generations in northern Hebei and Shandong; 4-5 generations in Xinyang, Henan, the middle and lower reaches of the Yangtze River such as Hubei, Anhui, Jiangsu, Shanghai and northern Zhejiang; Guangxi has 6-7 generations; Lingshui County in Hainan Province has 10-11 generations. Due to the different immigration times of the rice leaf roller, there were many peaks, and the generation overlap phenomenon was obvious. In the p...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of insecticide for preventing and treating rice leaf roller, to overcome the defect of short dur