Mosquito Larvicidal Activity of the Essential Oils of Erechtites Species Growing Wild in Vietnam
AbstractMosquito-borne infections are a constant problem in Vietnam, and mosquito vector control is a primary approach to control these infections. Essential oils represent environmentally friendly alternatives to synthetic pesticides for mosquito control. The essential oils of two weedy species in Vietnam, Erechtites hieraciifolius and E. valerianifolius, have been obtained by hydrodistillation and analyzed by gas chromatography–mass spectrometry. The essential oils have been screened for mosquito larvicidal activity against Aedes albopictus, Ae. aegypti, and Culex quinquefasciatus. The essential oil from the aerial parts of E. hieraciifolius was rich in α-pinene (14.5%), limonene (21.4%), and caryophyllene oxide (15.1%), while E. valerianifolius essential oil was dominated by myrcene (47.8%) and α-pinene (30.2%). Both essential oils showed good larvicidal activity against Ae. albopictus (24-h LC50 10.5 and 5.8 μg/mL, respectively) and Ae. aegypti (24-h LC50 10.6 and 12.5 μg/mL, respectively). The essential oil of E. valerianifolius also showed good activity against Cx. quinquefasciatus larvae (24-h LC50 = 40.7 μg/mL). Thus, Erechtites essential oils may serve as low-cost vector control agents for mosquito-borne infections. View Full-Text
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Hung, N.H.; Satyal, P.; Hieu, H.V.; Chuong, N.T.H.; Dai, D.N.; Huong, L.T.; Tai, T.A.; Setzer, W.N. Mosquito Larvicidal Activity of the Essential Oils of Erechtites Species Growing Wild in Vietnam. Insects 2019, 10, 47.
Hung NH, Satyal P, Hieu HV, Chuong NTH, Dai DN, Huong LT, Tai TA, Setzer WN. Mosquito Larvicidal Activity of the Essential Oils of Erechtites Species Growing Wild in Vietnam. Insects. 2019; 10(2):47.Chicago/Turabian Style
Hung, Nguyen H.; Satyal, Prabodh; Hieu, Ho V.; Chuong, Nguyen T.H.; Dai, Do N.; Huong, Le T.; Tai, Thieu A.; Setzer, William N. 2019. "Mosquito Larvicidal Activity of the Essential Oils of Erechtites Species Growing Wild in Vietnam." Insects 10, no. 2: 47.