关键词: 右旋苯氰菊酯, 淡色库蚊, 家蝇, 德国小蠊, 击倒

Abstract: Applying the methods of soaking, dropping, spraying and thin film membrane technique the experiment on d-cyphenothrin against mosquito, housefly and B.germanica were carried out in laboratory. The result confirmed that the LC₅₀ of d-cyphphenothrin for the larve of C. pipiens was 0.0089ppm. The toxicity of the agent given is 1.9 and 7.1 times than that of permethrin and d-phenothrin. LD₅₀ of d-cyphenothrin was 0.0418μg/per individual for B.germanica, its toxicity is 3.3 and 5.7 times than that of permethrin and d-phenothrin, the kT₅₀ and the mortality of 24 hr. was superior to above mention two agents.According to the spraying technique the kT₅₀ and the mortality of 24hr.for C.pipiens, housefly and B. germanica were also superior to above mention two agents, therefore, The result showed that d-eyphenothrin possessed a very effective knockdown action and killing activity for C. pipiens, housefly and B. germanica.