Studies on insecticide susceptibility of Aedes aegypti (Linn) and Aedes albopictus (Skuse) vectors of dengue and chikungunya in Andaman and Nicobar Islands, India

Parasitology Research
Arun SivanP T Vidhya

Abstract

Dengue and chikungunya are important arboviral infections in the Andaman Islands. Competent vectors viz. Aedes aegypti and Aedes albopictus are widely prevalent. The most effective proven method for interrupting the transmission of these arboviruses is vector control, mediated through insecticides. Currently, DDT and temephos are the insecticides used for vector control in these islands. Lack of information on susceptibility necessitated assessing the susceptibility profile of A. aegypti and A. albopictus. F1 generation of adult and larvae were assayed, and LT50 and LT90 values were interpreted following the World Health Organization (WHO) protocol. Adults were found resistant to DDT-4 % while susceptible to dieldrin-0.4 %. Against organophosphates, both showed resistance to fenitrothion but susceptible to malathion-5 %. Both species showed resistance to carbamate and bendiocarb-0.1 % while susceptible to propoxur-0.1 %. Of the four synthetic pyrethroids, both were susceptible to deltamethrin-0.05 %, while resistant to permethrin-0.75 %, lambdacyhalothrin-0.05 % and cyfluthrin-0.15 %. Larvae of both species showed resistance to temephos at 0.02 mg/L but susceptible to malathion at 1 mg/L and fenthion at 0.05 mg/L. Currently, th...Continue Reading

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Citations

Oct 16, 2016·Pesticide Biochemistry and Physiology·Letícia B SmithJeffrey G Scott
Sep 16, 2015·PLoS Neglected Tropical Diseases·Leyanna GeorgeOlaf Horstick
Sep 21, 2017·Parasites & Vectors·Tobias SuterMaria Helena Neves Lobo Silva-Filha
Dec 2, 2017·Pest Management Science·Emanuelle GoellnerOnilda Santos da Silva
Jan 26, 2018·Journal of the American Mosquito Control Association·Kyndall C Dye-BraumullerGrayson C Brown

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