The Laboratory and Semi-Field Larvicidal Effects of Essential Oil Extracted from Feronia limonia against Anopheles arabiensis Patton.

This study intended to evaluate the larvicidal activity of Feronia limonia leaf essential oil against the wild population of Anopheles arabiensis Patton larvae in laboratory and semi-field environments. Larvae mortality was observed after 12, 24, 48, and 72 hours of exposure. In laboratory condition, the essential oil showed good larvicidal activity against An. arabiensis (LC 50  = 85.61 and LC 95  = 138.03 ppm (after 12 hours); LC 50  = 65.53 and LC 95  = 117.95 ppm (after 24 hours); LC 50  = 32.18 and LC 95  = 84.59 ppm (after 48 hours); LC 50  = 8.03 and LC 95  = 60.45 ppm (after 72 hours), while in semi-field experiments, larvicidal activity was (LC 50  = 91.89 and LC 95  = 134.93 ppm (after 12 hours); LC 50  = 83.34 and LC 95  = 109.81 ppm (after 24 hours); LC 50  = 66.78 and LC 95  = 109.81 (after 28 hours); LC 50  = 47.64 and 90.67 ppm (after 72 hours). These results give an insight on the future use of F. limonia essential oils for mosquitoes control.