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VOL. 9, ISSUE 6 (2024)
Larvicidal activity of four Spice plant Essential oils against Culex quinquefasciatus Say, 1823 (Insecta: Diptera: Culicidae)
Authors
Atiya Jamal, Sagata Mondal
Abstract
A study was conducted to assess the larvicidal potential of spice essential
oils from Piper nigrum (Black pepper), Murraya koenigii (Curry
leaf), Allium sativum (Garlic) and Allium cepa (Onion) against Culex
quinquefasciatus mosquito larvae under laboratory condition. Various
dilutions (12.5ppm, 25ppm, 50ppm, 75ppm, 100ppm, 150 ppm, 200ppm, 250ppm, 500ppm)
of commercially available steam distilled essential oil used to carry out
laboratory bioassays. The percentage of mortality of Culex quinquefasciatus was
calculated after 24, 48, 72 and 96 hours of exposure. Among the essential oils
tested Garlic, showed the highest larvicidal activity against larvae of Culex
quinquefasciatus (LC50 0.258 ppm and LC90 0.335 ppm)
on 24 hours of exposure. Black pepper, Curry leaf and Onion also showed
significant amount of larvicidal activity (LC50 0.288 ppm, 0.385 ppm,
0.361 ppm and LC90 0.471, 0.443, 0.416 respectively). As all the
essential oils show significant larvicidal effect, it can be concluded that
essential oils can combat Culex quinquefasciatus larvae. And thus, these
compounds may provide an alternative to synthetic insecticides as they are
environmentally safe insecticides.
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Pages:32-37
How to cite this article:
Atiya Jamal, Sagata Mondal "Larvicidal activity of four Spice plant Essential oils against <i>Culex quinquefasciatus</i> Say, 1823 (Insecta: Diptera: Culicidae)". International Journal of Entomology Research, Vol 9, Issue 6, 2024, Pages 32-37
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