Comparative Study of the Susceptibility and Residual Effectiveness of Airborne Spray Deposits of Fenitrothion 40 W.P. on Anopheles albimanus in Two Villages of Nicaragua in 1991

Abstract

The effect of application of fenitrothion 40 W.P. 2 g/m², was evaluated during 1991 in two localities situated in two different geographic and climatic regions, northern and the pacific coast of Nicaragua.
Susceptibility as well as bioassay tests were performed. The residual effectiveness of insecticide deposits from airborne sprays was also evaluated. Results indicate that deposits from air borne sprays of fenitrothion
40 W.P., was effective for control An. albimanus for up to 60 days after application. There was good susceptibility (95% mortality) of An. albmanus to fenitrothion 1.0% and the residual activity goes beyond 60 days after
application.

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