E Effectiveness of Saga Tree Seed Extract (Adenanthera Pavonine) as Larvacide of Mosquito Aedes Aegypti
From 2009 to 2015, there was an increase in the number of cases of Dengue Fever in districts or cities. Aedes aegypti mosquito larvae have been resistant to Themephos Abate 1 SG in Surabaya, Palembang, and several regions in Bandung. This study aims to determine the effective concentration of tree saga seed extract against the death of Aedes aegypti mosquito larvae and determine the effectiveness of the concentration at the value of LC50 for 24 hours. This study was Experimental Laboratory using a complete randomized design method with 3 replications. Data from observations were analyzed with Analysis of Variance (ANOVA). A further test was carried out using the Smallest Significant Difference Test (LSD) at the confidence level of 0.05%. Determination of lethal concentrations was carried out with probit analysis. The results showed that saga tree seed extract at a concentration of 2%, 4%, and 6% was effective against the mortality of Aedes aegypti mosquito larvae. The mortality rate of Ae, aegypti at the concentration of 0.50% was 7%, the concentration of 1% was 10%, the concentration of 1.50% was 12.6%, the concentration of 2% was 13.33%, the concentration of 4% was 17% and the concentration of 6% was 19%. The LC50 value of saga seed ethanol extract in killing Aedes aegypti mosquito larvae was 4.806% with a 24-hour exposure time. That saga tree seed extract with a concentration of 0.50%, 1%, 1.50%, 2%, 4%, and 6% was effective against the mortality of Aedes aegypti mosquito larvae. The fastest mortality time of the larvae was at the concentration of 6% with the total mortality of 18.54%. The LC50 value of saga tree seed extract in killing Aedes aegypti mosquito larvae was 4.806% with a 24-hour exposure time.