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Effect of Copper on Lethal Dose and Pupation of Aedes albopictus (Diptera: Culicidae)  

Lee, Su-Mi (Department of Biology, Changwon National University)
Yoon, Su-Jin (Hankuk Institute of Life Science)
Shin, Byung-Sik (Department of Biology, Changwon National University)
Publication Information
Korean Journal of Environmental Biology / v.28, no.2, 2010 , pp. 64-68 More about this Journal
Abstract
The mosquito, Aedes albopictus is important vector of humen phatogen such as dengue fever. And Aedes albopictus has widly distribution in oriental regions. This study was conducted to investigate the biological effects of cooper on the development of the Asian tiger mosquitoes, Aedes albopictus (Skuse). Aedes albopictus was affected with pupation ratios, mortalities, and wing lengths of the 3th and 4th instars by exposure to different concentration $CuCl_2$ (0.0, 2.5, 25.0 and 50.0 ppm) for 24 h and 48 h depending on dose and exposure period. The lowest $LC_{50}$ (median lethal concentration) value of $CuCl_2$ was 18.1 ppm at the 3rd instars for 48 h exposure. The pupation ratio of the larvae exposed at 50.0 ppm for 48 h was 14% which was much lower than those exposed to other treatment groups Changes of adult wing length showed significant decreased by Cu treatment. In conclusion, the most prominent effects of high concentration and longer exposure period were to reduce in the survival and pupation rates of larvae and wing length of Ae. albopictus.
Keywords
Aedes albopictus; heavy metal; lethal dose;
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