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1 September 2017 Adulticidal Susceptibility Evaluation of Aedes albopictus Using New Diagnostic Doses in Penang Island, Malaysia
Junaid Rahim, Abu H. Ahmad, Hamdan Ahmad, Intan H. Ishak, Adanan Che Rus, Hamisu A. Maimusa
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Abstract

Insecticide-based vector control approaches are facing challenges due to the development of resistance in vector mosquitoes. Therefore, a proper resistance surveillance program using baseline lethal concentrations is crucial for resistance management strategies. Currently, the World Health Organization's (WHO) diagnostic doses established for Aedes aegypti and Anopheles species are being used to study the resistance status of Aedes albopictus. In this study, we established the diagnostic doses for permethrin, deltamethrin, and malathion using a known susceptible reference strain. Five field-collected populations were screened against these doses, following the WHO protocol. This study established the diagnostic dose of malathion at 2.4%, permethrin at 0.95%, and deltamethrin at 0.28%, which differ from the WHO doses for Aedes aegypti and Anopheles spp. Among the insecticides tested on the 5 wild populations, only deltamethrin showed high effectiveness. Different susceptibility and resistance patterns were observed with permethrin, malathion, and dichloro-diphenyl-trichloroethane (DDT) at 4%. This study may assist the health authorities to improve future chemical-based vector control operations in dengue-endemic areas.

Junaid Rahim, Abu H. Ahmad, Hamdan Ahmad, Intan H. Ishak, Adanan Che Rus, and Hamisu A. Maimusa "Adulticidal Susceptibility Evaluation of Aedes albopictus Using New Diagnostic Doses in Penang Island, Malaysia," Journal of the American Mosquito Control Association 33(3), 200-208, (1 September 2017). https://doi.org/10.2987/16-6607R.1
Published: 1 September 2017
JOURNAL ARTICLE
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