PENGARUH EKSTRAK DAUN ZODIA (Evodia suaveolens) SEBAGAI LARVASIDA NABATI TERHADAP KEMATIAN JENTIK NYAMUK Aedes aegypti

Abstract

This study aims to determine the effect and effectiveness of vegetable larvicides from zodia leaf extract on the death of Ae. aegypti mosquito larvae. The completely Randomized Design (CRD) method was used with 6 treatments with concentrations of 0%, 2%, 4%, 6%, 8%, and 10% zodia leaf extract with 4 repetitions and 240 larvae samples (instar III or IV). The bioassay test was used to test the number of Ae. aegypti that died due to the concentration treatment given for 24 hours. The data were analyzed by using the Kruskal-Wallis hypothesis test (p-value < 0.05) and the Mann-Whitney comparison test. Correction with the Abbot formula was carried out because the larval mortality in the control treatment reached 7.5 percent. The percentage of test larvae mortality after Abbot correction showed that the concentration of 4% zodia leaf extract was classified as good as the larvicide of Ae. aegypti with 100 percent larval mortality. The Kruskal-Wallis test showed that there was an effect of zodia leaf extract on the number of larvae deaths of Ae. Aegypti with a p-value of 0.009. The Mann-Whitney test results showed that giving a concentration of 2% and 4% had an effect on larval mortality compared to the control treatment with a p-value of 0.014. While the treatment with a concentration of 2% compared to 4% obtained a p-value of 0.500, which means that the difference in concentration between the two did not affect the mortality of Ae. aegypti. Based on these results, the effectiveness of zodia extracts as larvicides of Ae. aegypti is recommended at a concentration of 2%.