Susceptibility status of mosquitoes in Egypt in commonly used insecticides

The present study investigated the susceptibility levels of mosquito population [Anopheles and Culex] to different insecticides in Ismailiya Governorate. The results of these tests carried out on An. coustani population [larvae and adults] indicated that no severe selection occured among the population at Abu Adrub area. The population was still susceptible to malathion, fenitrothion, temefos, chlorpyrifos and propoxur, but resistant to DDT and dieldrin insecticides. Larvae and adults of Culex antennatus in Abu Adrub, as well as, Culex sp. larvae at Kantara - West showed physiological resistance to all insecticides tested except temefos and propoxur