Establishing discriminating concentrations of indigenous plant-based insecticides against adult Aedes aegypti (L.) and Aedes albopictus Skuse (Diptera: Culicidae).
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引用次数: 0
Abstract
The increasing prevalence of insecticide resistance in Aedes mosquitoes necessitates development of alternative control methods. This study evaluated adulticidal efficacy of essential oils from Litsea cubeba, Syzygium aromaticum, and Cinnamomum porrectum against laboratory and field populations of Aedes aegypti and Aedes albopictus. Discriminating concentrations (DCs) were established using WHO tube tests. L. cubeba showed the lowest DCs (6.21% v/v for Ae. aegypti, 9.68% v/v for Ae. albopictus), followed by C. porrectum (9.70%, 15.55%) and S. aromaticum (19.40%, 24.33%). At these DCs, all oils demonstrated 98-100% knockdown and 99-100% mortality against field populations. Aedes albopictus required higher DCs than Ae. aegypti, suggesting species-specific susceptibility differences. Essential oils showed superior efficacy against field-collected Ae. aegypti compared to cypermethrin. Results indicate potential of these oils as effective botanical insecticides, particularly where conventional insecticide resistance occurs.
期刊介绍:
The Journal of Vector Ecology is an international journal published by the Society for Vector Ecology. It is concerned with all aspects of the biology, ecology, and control of arthropod and vertebrate vectors and the interrelationships between the vectors and the agents of disease that they transmit. The journal publishes original research articles and scientific notes, as well as comprehensive reviews of vector biology based on presentations at Society meetings. All papers are reviewed by at least two qualified scientists who recommend their suitability for publication. Acceptance of manuscripts is based on their scientific merit and is the final decision of the editor, but these decisions may be appealed to the editorial board. The journal began publishing in 1974 and now publishes on-line only.