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International Journal of Mosquito Research
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International Journal of Mosquito Research
Vol. 4, Issue 2, Part B (2017)

Larvicidal activity of Scutellaria violacea (Lamiaceae) leaf extracts against three important human vector mosquitoes: Aedes aegypti, Anopheles stephensi and Culex quinquefasciatus (Diptera: Culicidae) from Tamil Nadu, India

Author(s): K Subashini, R Sivakami and Dr. A Jeyasankar
Abstract: The present study was conducted to determine the larvicidal activity of Scutellaria violacea leaf extracts against Aedes aegypti, Anopheles stephensi and Culex quinquefasciatus. The larvicidal activity was determined against three vector mosquito species at the concentrations of 50, 100, 150, 200 and 250 ppm. Larval mortality was assessed after 24 hours. The leaf extracts of S. violacea was found to be more susceptible against the larvae of A. aegypti, A. stephensi and C. Quinquefasciatus respectively. Insecticidal susceptibility tests were carried out using standard method and the mortality was observed after 24-h exposure. All the tested crude extract showed moderate to good larvicidal and pupicidal activities. However, the maximum larval mortality was detected in ethanol extract against A. stephensi and C. quinquefasciatus (LC50 47.6 and LC95 225.3) and C. quinquefasciatus (LC5051.8 and LC95 218.4). These results suggested that the leaf extracts of S. violacea showed potential to be used as an ideal ecofriendly approach for the control of the A. aegypti, A. stephensi and C. quinquefasciatus
Pages: 108-110  |  927 Views  16 Downloads
How to cite this article:
K Subashini, R Sivakami and Dr. A Jeyasankar. Larvicidal activity of Scutellaria violacea (Lamiaceae) leaf extracts against three important human vector mosquitoes: Aedes aegypti, Anopheles stephensi and Culex quinquefasciatus (Diptera: Culicidae) from Tamil Nadu, India. International Journal of Mosquito Research. 2017; 4(2): 108-110.
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