The Effectiveness of Zodia Leaves (Evodia Suaveolens Scheff) Oil as Aedes aegypti L Mosquito Repellent in Papua

Abstract

Dengue hemorrhagic fever (DHF) is a disease caused by infection with the dengue virus. It is controlled by using repellents that protect humans from mosquito bites. One of the repellents used by the community includes DEET chemicals but natural repellents used against mosquitoes such as the zodia plant are also needed. Zodia leaves (Evodia suaveolens Scheff) contain linalool and -pinene compounds as well as evodiamine and rutacarpine. Linalool functions by disrupting the nervous system in mosquitoes thereby causing convulsion and death. Therefore, this study aims to formulate and evaluate the zodia oil and test its effectiveness as a mosquito repellent (Aedes aegypti L) with repelling power method. The formulations were prepared with various concentrations of 25 %, 50 %, and 75 %. Based on the results,  the protective power of Formula I (25 %) for 0, 1st, 2nd, and 3rd hours, respectively, was 100%, 100 %, 89.28 %, and 92.85 %. Furthermore, Formula II (50 % concentration) showed a protective power of 100 %, 100 %, 90.90 % and 91.66 %, while the third Formula (75 % concentration) showed a protection power of 100 %, 100 %, 96.15% and 93.33%. Therefore, it was concluded that the three zodia oil formulas are effective as a repellent against Aedes aegypti L mosquitoes.