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Original Article



Efficacy of commercial botanical pure essential oils of garlic (Allium sativum) and anise (Pimpinella anisum) against larvae of the mosquito Aedes aegypti

Sedthapong Laojun, Pongmada Damapong, Peerada Damapong, Wallapa Wassanasompong, Nantana Suwandittakul, Thavatchai Kamoltham, Tanawat Chaiphongpachara.




Abstract
Cited by 2 Articles

Aedes aegypti, also called the dengue or yellow fever mosquito, is a significant vector species of several viruses especially the dengue virus. Reducing Ae. aegypti population can directly reduce dengue outbreaks in the community. The research aim is to assess the efficacy of commercial botanical pure essential oils of garlic (Allium sativum) and anise (Pimpinella anisum) against Ae. aegypti larvae, the mortality of larvae was monitored after 24- and 48-h of exposure. The larvicidal activity of garlic oil after 24-h exposure was 0.005 ppm for LC25, 0.006 ppm for LC50, and 0.012 ppm for LC90, and after 48 h exposure was 0.004 ppm for LC25, 0.006 ppm for LC50, and 0.014 ppm for LC90. Meanwhile, the larvicidal activity of anise oil after 24-h exposure was 0.016 ppm for LC25, 0.023 ppm for LC50, and 0.043 ppm for LC90, and after 48-h exposure was 0.014 ppm for LC25, 0.020 ppm for LC50, and 0.037 ppm for LC90, whereas, Aedes larval mortalities increased with an increase in the concentration of garlic and anise essential oils after both 24- and 48-h exposure. The results of this study were clear evidence for the efficiency of commercial plant oil for dengue vector larval control, especially garlic essential oils.

Key words: Aedes aegypti, Essential oils, Allium sativum, Pimpinella anisum, Dengue virus.






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