Vector control is a useful tool for elimination of lymphatic filariasis which is severely challenged by the emergence of resistance among the vector mosquitoes against used insecticides. Reports on status of insecticide susceptibility from different parts of the country are important for formulation of vector control strategy. The present study was aimed to assess the larval susceptibility of Culex quinquefasciatus to temephos and adult susceptibility to DDT, deltamethrin and malathion. Larvae and adult of F1 generation were used for insecticide bio-assay using standard WHO protocol. It was that the adult Culex quinquefasciatus population of the study areas were resistant to all three insecticides tested with corrected mortality well below the 90% (1.25 to 9.38% for DDT, 33.33 to 61.25% for deltamethrin and 13.75 to 50.63 % for malathion). High degree of temephos tolerance was recorded among the larval forms. Such study from other parts of the country is highly suggested.
