The efficacy under standard concentration of Temephos and granule to Aedes aegypti lavae in laboratory

Abstract

This study was to determine the mortality rate of Aedes aegypti larvae with Temephos at lower concentation than standard recommendation in laboratory. The experimental test was observation on 24 hrs after exposure to all of 29 samples Temephos at concentration 0.25, 0.50 and 0.75 ppm. It was found that, the mortality rate of Aedes aegypti larvae average 69.45, 83.88 and 92.13%, respectively. Based on this evidence, the lower concentration at 25, 50 and 75% (0.75, 0.50 and 0.25 ppm) from standard recommendation of World Health Organization were still efficacy for larval control, if a mistaken occurring on use as same as these concentration. Further more for larval control at community level, should be advised with clear on use system and setting for surveillance Temephos quality.