研究了二化螟对常用杀虫剂有机磷、沙蚕毒系、氨基甲酸酯和新药剂锐劲特、阿维菌素的敏感性和田间药效 ,同时比较了杭嘉湖地区二化螟对杀虫单的抗性差异并开展了杀虫剂混配试验。结果表明 :二化螟对锐劲特、阿维菌素及三唑磷的敏感性较高 ,而对灭多威、杀虫单、杀虫双等敏感性低 ;用药水平高的杭州地区 ,二化螟对杀虫单已产生了较高抗性 ,而安吉、嘉兴地区的抗性也正在发展之中 ;三唑磷与辛硫磷、阿维菌素 ,灭多威与水胺硫磷混配 ,对二化螟均具有增效作用 The susceptibility of Sesbania to perennial insecticides, organophosphates, Nereis, Nepatide, and the new agent Fenrethrin, Abamectin and field efficacy were studied. Pesticide resistance differences and carried out a pesticide mixture test. The results showed that the susceptibility of the stem borer to fipronil, abamectin and triazophos was high, while the sensitivity to methomyl, insecticide single and insecticidal double was low. In Hangzhou, where the drug level was high, Chilo suppressalis has produced a higher resistance to pest orders, while the resistance of Anji, Jiaxing area is also being developed; triazophos and phoxim, avermectin, methomyl and acetoside Mixed with the Stem Bore have synergistic effects