Susceptibility to chemical insecticides of two Brazilian populations of the visceral leishmaniasis vector <i>Lutzomyia longipalpis</i> (Diptera: Psychodidae)

Abstract

Our results are the first record of significantly reduced susceptibility to the insecticides used in control of wild populations of Lu. longipalpis. They demonstrate the importance of evaluating chemicals against this species by conventional bioassay and microplate assays before and during spraying programmes.