Toxicological Action of DDT on Three Species of Mosquito Larvae

Publisher Website
Google Scholar
Abstract
In tests by radiometric methods the amount of DDT picked up and its relation to the mortality of fourth-instar larvae of Anopheles quadrimaculatus Say,Aedes taeniorhynchus (Wide.), and Aedes aegypti (L.) varied with the exposure time and the concentration. Larvae did not excrete DDT except when exposed to concentrations above the minimum LC-100. The toxic action of DDT on quadrimaculatus larvae differed from that on aegypti. Resistance to DDT in a strain of taeniorhynchus was not related to the uptake or the excretion. Live quadrimaculatus larvae absorbed three times as much DDT as dead larvae; however, in a 24-hour test period the surviving larvae had about the same dose as the nonsurvivors.

This publication has 3 references indexed in Scilit: