Studies on the efficacy of selected insecticides against Anopheles mosquitoes of village Goth Bhoorji (Sindh) Pakistan

Abstract

Anopheles subpictus mosquitoes were exposed to various diagnostic doses of three pyrethroids (Deltamethrin, Lambda-cyhalothrin, and Permethrin), one organophosphate (Malathion), and one chlorinated hydrocarbon (DDT), showed a range of mortalities in village Goth Bhoorji of district Mirpur Khas. Anopheles subpictus was resistant to two out of five insecticides in village Goth Bhoorji. Results of test done on Anopheles subpictus, against diagnostic dose of 4% DDT shown percentage mortality 100%. Anopheles subpictus, shown no resistance against 5% Malathion with mortality rate of 100%. Test results against 0.05% Deltamethrin diagnostic dose showed susceptibility in Anopheles subpictus with percentage mortality 100%. Wild caught female Anopheles subpictus showed percentage mortality 67.79% against 0.05% Lambda-cyhalothrin, while against 0.75% Permethrin the species were resistant with percentage mortality 67.54%.