关键词: 家蝇, 凯素灵, 奋斗呐, 敏感性

Abstract: The KT₅₀ and 24 hours death rate of 9 age stages of male and female domestic flies to K-otherin(0.25,2.5mg/m²)and Fendona(1,10mg/m²)membrane on glass were tested.The KT₅₀ values of 1 to 7 days old house flies wer eincreased evidently with age increast.The KT₅₀ values of older house flies were decreased slowly with age increase. Each KT₅₀ value of the same dealing male house floyes was less than the female's.The death rates of house flies which was dealed with 2.5mg/m² K-otherin and 10mg/m² Fendona were all 100%.The death rates of 10 to 46 days old house flies dealed with 2.5mg/m² were lowest and the death rates of house flies dealed with 1mg/m² Fendona increased with age increase the male death rates were more than female.