Abstract
The larvicidal activities of essential oils from the leaves of Artemisia vulgaris L., Cymbopogon flexuosus(Nees ex Steud.) Wats. and Piper tuberculatum Jacq. were evaluated using third-instar larvae of Aedes aegypti. The essential oils were obtained by hydrodistillation and analyzed by GC and GC-MS. The essential oil of P. tuberculqatum had the lowest LC50 value (106.3 ± 2.2 μg/mL), followed by that of A. vulgaris(114.1 ± 1.7 μg/mL) and C. flexuosus(121.6 ± 0.8 μg/mL). The results show that these essential oils may be potent sources of natural larvicides.
