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Published on: May 24, 2020
Insecticidal Activity of Thymoquinone and Related Compounds Against Culex quinquefasciatus (Diptera: Culicidae)
Mariah L Scott1, Mary F Adams1, Joseph J Karchesy2
1Arbovirus Diseases Branch, Division of Vector-Borne Infectious Diseases, Centers for Disease Control and Prevention, 3150 Rampart Rd., Fort Collins, CO 80521 (gni6@cdc.gov; madams@what-wire.com; jvm6@cdc.gov).
Abstract:
Insecticides based on botanical sources have taken on increased attention due to differing modes of action from current insecticides in use and the view that they may be environmentally friendly. Thymoquinone, a component in the essential oil of incense cedar heartwood, has been shown to have insecticidal action against adult mosquitoes. This study evaluated relative toxicities of thymoquinone, selected derivatives of thymoquinone, hydroquinone, and arbutin to determine if any had similar or better activity. The intrinsic toxicities of hydroquinone and thymohydroquinone were not significantly different from thymoquinone, while libocedrol and arbutin were significantly less toxic.
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