Development and Characterization of Resistance to o-lsopropoxyphenyl Methyl-carbamate in the Mosquito Culex pipiens quinquefasciatus Say

Abstract

THE possibility of development of resistance to carbamate insecticides in mosquitoes, and the character of such resistance, are questions of profound importance in the vector control and eradication programmes of public health agencies. With the gradual elimination of organo-chlorine insecticides in many parts of the world due to development of resistance, attention has been directed to substitute insecticides, particularly in the organophos-phorous and carbamate groups^1,2. Resistance to certain organophosphorous insecticides has already appeared in strains of Culex and Aedes, especially in areas where these compounds have been used routinely as larvicides^1,3. This phenomenon has created even greater urgency for research into the resistance potential of mosquitoes to the carbamate insecticides.