Residual effect of Citrus sinensis and Syzygium aromaticum essential oils in association with temephos on Aedes aegypti Linn. larvae (Diptera: Culicidae) in laboratory

The increase of Ae. aegypti resistance to conventional insecticides and growing public concern about the environmental impact has resulted in development alternatives mosquito control. Thus, use essential oils (EOs) combination with larvicides may be a strategy used reduce phenomenon resistance. Controlling larvae for prolonged period is important interrupting transmission vector-borne viruses, as long lasting larvicidal formulations health agents visits consequent reduction global cost controlling spread. Previous studies have shown that synergistic interactions between temephos EOs exhibited increased lethality when compared alone. Therefore, goal this work was evaluate residual effects associations Citrus sinensis Syzygium aromaticum homogenized hydrogel impregnated ceramic supports on larvae. After application products 1,000 mL beakers, 25 were deposited each beaker every five days half beakers emptied 200 mL, original volume replaced new batches added. Mortality observed after 48 h larval exposure. There equivalence effect association temephos/EOs