Search Repository Universitas Fort De Kock

Dengue Haemorrhagic Fever (DHF) is one of several infectious diseases. Efforts should be made to protect themselves from the bite of themosquito vector Aedes aegypti by using a repellent made from natural
lemongrass (Cymbopogon Winterianus Jowitt) and soursop seeds (Annona muricata L). The purpose of this study was to determine the effectiveness of the two ingredients mentioned above as a natural respondent. This research is experimental with the independent variable concentration of citronella extract (concentration 75%, 60%, 45%, 30%, 15%) and soursop seed extract with concentrations of 20%, 40%, 60%, 80% and 100%. The sample of this study was Aedes aegypti mosquitoes 500. This study uses 5 repetitions for 6 hours of observation. The test used is the Anova test and the Independent Test T Test. The results showed the most effective concentration of fragrant lemongrass extract was a concentration of 75% with a total of 8 tails at the 5th hour with a protective power of 92.26%. Soursop seed extract at a concentration of 100%
with the number of larvae that died 5 observations had a protective power of 95.42%. Based on the results it was concluded that the fragrant lemongrass extract was effective against the protection power of Aedes aegypti mosquitoes with a concentration of 100%, so that the lemongrass can be recommended as a repellent.