The Sublethal Effects Of Meperfluthrin And Transfluthrin On Aedes Albopictus (Skuse) And Aedes Aegypti Linnaeus
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Date
2017-06
Authors
Ang, Ching Yang
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Publisher
Universiti Sains Malaysia
Abstract
A laboratory study was conducted on the sublethal effects of meperfluthrin and transfluthrin on Aedes albopictus and Aedes aegypti. Several biological parameters of Ae. albopictus and Ae. aegypti were tested namely fecundity, fertility, pupation and emergence rate, sex ratio, blood feeding behavior and longevity. The LD50 value of meperfluthrin and transfluthrin obtained for Ae. albopictus was 0.0061 ng/mg and 0.0597 ng/mg, respectively. Whereas the LD50 value of meperfluthrin and transfluthrin obtained for Ae. aegypti was 0.0090 ng/mg and 0.0905 ng/mg, respectively. Parental batch of Ae. aegypti and Ae. albopictus treated with a sublethal dose of meperfluthrin showed a significant reduction in egg hatchability. A significant reduction in egg hatchability was also observed in the parental stage of Ae. albopictus treated with a sublethal dose of transfluthrin. However, no significant difference in the mean number of eggs deposited was observed in meperfluthrin and transfluthrin treated mosquitoes. Meperfluthrin and transfluthrin treated parental stage Ae. albopictus and Ae. aegypti also showed increased host seeking time. There were no significant differences in the engorgement time and total amount of blood meal for both the treated mosquito species. There was significant difference in the adult emergence rate of F1 Ae. aegypti and F1 Ae. albopictus after being treated with meperfluthrin. However, the F2 generation of both species of mosquitoes treated with meperfluthrin and transfluthrin did not show any significant difference in the adult emergence rate.
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Keywords
The sublethal effects of meperfluthrin , transfluthrin on Aedes albopictus