The Susceptibility of fourth-stage Larvae of Anopheles gambiae to DDT and Dieldrin

Publisher Website
Google Scholar
Abstract
The validity of the MLD (Minimum Lethal Dose) as a practical concept for measuring toxicity, despite its obvious lack of precision, is discussed. Its use has justification.The 48-hour MLD of acetone-water suspensions and oil films of DDT and dieldrin for early fourth-stage larvae of Anopheles gambiae Giles have been measured.The results show A. gambiae to be relatively resistant to DDT.In acetone-water suspension dieldrin appears to be about six times as toxic as DDT. In oil solutions this difference is more marked, the ratio being in the neighbourhood of 20:1.

This publication has 1 reference indexed in Scilit: