Pengaruh Ekstrak-Metanol Daun Sirsak (Annona muricata Linn) terhadap Daya Tetas Telur, Mortalitas dan Perkembangan Larva Aedes aegypti Linn.

Abstract

The experiments about effects of methanol-extract of soursop leaf (Annona muricata Linn.) on the egg hatching ability, mortality and development of Aedes aegypti larvae has be done in Animal Physiology Laboratory of USU in February 2007 until August 2007. The experiments used Factorial Complete Random Method. The experiment comprise 2 test, that is the egg hatching ability test, and the larvae mortality test. The concentrations that was used for the both test are control, 0.02 %, 0.04 %, 0.06 %, 0.08 %, 0.1 %, and 0.12 %. The time for egg hatching ability was 24, 48 and 72 hours, and 24 hours for larvae mortality test. The result shows that the effects of methanol-extract of soursop leaf can inhibit the egg hatching ability and larvae development into pupae and adult until 100 %. The larvae mortality test shows that higher concentrations cause higher mortality of larvae with an inhibition of up to 98.75 % at the concentration of 0.12 % and inhibits larvae development to pupae and adult. Based on regression equation was known that LC 50 value for 24 hour is 0.0652 %.