Journal of the American Mosquito Control Association · 2025
COMPARATIVE BEHAVIORAL RESPONSES OF Β-CARYOPHYLLENE AGAINST ANOPHELES MOSQUITO SPECIES, POTENTIAL VECTORS OF MALARIA IN THAILAND.
СтатьяСравнительное исследованиеПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод пока не подготовлен
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Lhaosudto Suthat, Sathantriphop Sunaiyana, Kongmee Monthathip, Karpkird Thitinun, Leepasert Theerachart, Ngoen-Klan Ratchdawan, Chareonviriyaphap Theeraphap
Аннотация
Insecticide-based mosquito control poses risks of environmental harm and resistance development. As a safer alternative, β-caryophyllene, a nontoxic compound derived from plants, was evaluated as a safer alternative for its excito-repellency against four Anopheles mosquito species. Using an excito-repellency assay, An. minimus showed the highest escape rates (100%) at 2.5% (contact) and 5% (noncontact) concentrations. An. harrisoni also exhibited strong responses at 7.5%, with 94.34% (contact) and 72.73% (noncontact) escape. In contrast, An. epiroticus showed minimal response (12-25.42%). Significant differences between contact and noncontact trials were noted only in An. minimus and An. harrisoni. No knockdown or mortality occurred. Kaplan-Meier analysis revealed faster escape in contact conditions, especially for An. minimus. Log-rank tests confirmed dose-dependent repellency effects. These findings suggest β-caryophyllene has promising potential as a natural spatial repellent against malaria vectors.