Actividad larvicida y efecto residual de piperidinas e insecticidas organofosforados en las proteínas de Aedes aegypti (Díptera: Culicidae)

Abstract

The purpose of this research was to determine the activity, susceptibility, and resistance of larvae on third instar of mosquito Aedes aegypti to insecticides known as Malathion, Chlorpyrifos, and Temephos, as well as to 16 piperidine derivates. To accomplish the purpose of this study, Piedecuesta strain (collected in the field) and Rockefeller strain were used. In both cases, the total proteins and cholinesterase rates were quantified. In the case of the larvae that had been previously exposed to sublethal concentration of the insecticides, residual cholinergic activity was determined, as well as the type of inhibition caused by the AChE. The results of the research showed that the wild-type strain was highly resistant to Malathion and Chlorpyrifos; it was also registered that 14 of the tested piperidines, by acting as mixed-type cholinergic inhibitors, are a promising alternative to control the populations of larvae due to their high toxicity.