Adulticidal bioassay and repellency potentiality of fruits of Drypetes roxburghii on Culex quinquefasciatus and Anopheles stephensi  

Mallick Haldar K. , Chandra G.
Mosquito, Microbiology and Nanotechnology Research Units, Department of Zoology, The University of Burdwan, West Bengal, India
Author    Correspondence author
Journal of Mosquito Research, 2015, Vol. 5, No. 12   doi: 10.5376/jmr.2015.05.0012
Received: 04 Jul., 2015    Accepted: 29 Jul., 2015    Published: 26 Aug., 2015
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Preferred citation for this article:

Mallick Haldar K. and Chandra G., 2015, Adulticidal bioassay and repellency potentiality of fruits of Drypetes roxburghii on Culex quinquefasciatus and Anopheles stephensi, Journal of Mosquito Research, Vol.5, No.12 1-7 (doi: 10.5376/jmr.2015.05.0012)

Abstract

The present study was designed to evaluate adulticidal efficacy and repellency potentiality of crude and ethyl acetate extracts of mature fruits of Drypetes roxburghii (Wall.) Hurus., against the adult Culex quinquefasciatus Say and Anopheles stephensi Liston following appropriate protocols. In both the species of mosquitoes, mortality rate increased gradually with increased concentrations of ethyl acetate extract. LC50 and LC90 values of ethyl acetate extract were 109.62 ppm and 189.01 ppm for Cx. quinquefasciatus and 95.41 ppm, 181.96 ppm for An. stephensi respectively in adulticidal bioassay. An. stephensi was more susceptible to ethyl acetate extract than Cx. quinquefasciatus. Both crude and ethyl acetate extracts showed significant repellency potentiality. 99 % concentration of ethyl acetate extract conferred 100 % protection against biting activity of both the species of mosquitoes up to 120 minutes.

Keywords
Culex quinquefasciatus; Anopheles stephensi; Drypetes roxburghii; Ethyl acetate extract; Adulticide; Repellent
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