Abstract
Climate change has been proven to increase the vectorial capacity of disease carrying-arthropods, including Aedes aegypti, a crucial vector of several arthropod-borne viral diseases that affect humans all over the world. The control of mosquitoes is mostly performed through the use of chemical based-insecticides. However, the viability of this method has become a topic of debate, for instance, the continuous use of these chemicals tends to cause insecticide resistance. This study, therefore, aims to investigate the resistance of Aedes aegypti from South Sumatra to several insecticides. Several A. aegypti eggs were collected and reared until they became adult mosquitoes. Subsequently, the mosquitoes were subjected to insecticide susceptibility tests, using six different insecticides: 5% malathion, 0.05% deltamethrin, 0.75% permethrin, 0.05% lambda-cyhalothrin, 0.1% bendiocarb, and 0.15% cyfluthrin, based on the WHO protocol, for 24 hours of exposure. The results showed that the average mortality rate for 5% malathion, 0.05% deltamethrin, 0.75% permethrin, 0.05% lambda-cyhalothrin, 0.1% bendiocarb, and 0.15% cyfluthrin were 100%, 30.63%, 26.06%, 51%, 64.16% and 75.87%, respectively. Therefore, Aedes aegypti were concluded to be highly sensitive to 5% malathion.
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