Effect of Larvicidal Extract N-Hexane Lime Leaves (Citrus hystrix) on Larva Instar III Mosquito (Culex quinquefasciatus)

Culex quinquefasciatus mosquitoes are a vector of transmission several types diseases, such as filariasis, Japanese encephalitis, and dirofilariasis. Larval control is the key strategy disease programs caused by vectors around world because it can prevent larvae to enter adult stage. Control mosquito that often used chemically controlled. Citrus hystrix natural plant contains chemical compounds have biological activity, flavonoids, carotenoids, limonoids. The present study aimed determine effect citrus leaf extract (Citrus hystrix) on mortality larva quinquefasciatus. method in current was laboratory experimental with design using completely randomized design. research plot carried out rearing quinquefasciatus, manufacture extract, larvicidal material, observation phase after treatment. Extract N-hexane omplet name has high toxicity essential oils, alkaloids, terpenoids, saponins, Limonoids. Optimal concentration extracts leaves lead larval vitro amounted 93.33% 4 hours 4000 ppm. lime vitro.