本文报告用罐头瓶药膜法和点滴法对实验室饲养的3日龄未吸血印鼠客蚤为试验对象,测试了溴氰菊酯、滴滴畏、久效磷、磷胺、喹硫磷、倍硫磷半数致死量(LD_(50))和半数致死浓度(LC_(50))。结果以溴氰菊酯和喹硫磷的LC_(50)值较低,磷胺和滴滴畏的数值较高,LD_(50)以溴氰菊酯和倍硫磷毒力较强,磷胺和久效磷次之,雌雄个体差异不明显。 This paper reports the use of canned bottle membrane method and the drip method of laboratory-borne 3-day-old non-blood-sucking rat fleas as test subjects, deltamethrin, dicamba, monocrotophos, phosphate amine, quetiapine , The lethal dose of fenthion (LD_ (50)) and the lethal concentration (LC_ (50)). Results The LC 50 value of deltamethrin and quetiapine was lower, and the values ​​of phosphorus amine and dicamba were higher. LD 50 was more virulent to deltamethrin and thiomersal, And monocrotophos times, male and female individual differences are not obvious.