Larvicidal Potentiality of Root Extracts of Annona reticulata Linn. Against the Filarial Vector Culex quinquefasciatus Say (Diptera: Culicidae)  

Subrata Mallick1, 2 , Goutam Chandra1
1. Department of Zoology, Mosquito, Microbiology and Nanotechnology Research Units, Parasitology Laboratory, The University of Burdwan, West Bengal, 713104, India
2. Department of Zoology, Maharajadhiraj Uday Chand Womens’ College, Burdwan, West Bengal, India
Author    Correspondence author
Journal of Mosquito Research, 2015, Vol. 5, No. 10   doi: 10.5376/jmr.2015.05.0010
Received: 27 May, 2015    Accepted: 28 Jun., 2015    Published: 10 Aug., 2015
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This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Preferred citation for this article:

Subrata Mallick. and Goutam Chandra., 2015, Larvicidal Potentiality of Root Extracts of Annona reticulata Linn. Against the Filarial Vector Culex quinquefasciatus Say (Diptera: Culicidae), Journal of Mosquito Research, Vol.5, No.10 1-7 (doi: 10.5376/jmr.2015.05.0010)

Abstract

Present study was undertaken to evaluate the mosquito larvicidal potentiality of root extracts of Annona reticulata Linn. (A. reticulata), family Annonaceae against filarial vector Culex quinquefasciatus Say, 1823 (Cx. quinquefasciatus). Petroleum ether, hexane, and ethyl acetate root extracts of the plant were examined to established their larvicidal potentiality against 3rd instar larvae of Cx. quinquefasciatus mosquito species. Crude and only ethyl acetate root extracts of the plant at different concentrations were examined on 1st - 4th instars larvae of Cx. quinquefasciatus. LC50 value of ethyl acetate extract after 24 h of exposure against 3rd instar larvae of Cx. quinquefasciatus were also examined on some non target organisms. Phytochemical analyses of the root extracts of A, reticulata were also investigated. 100% mortality were noticed at very low concentrations of petroleum ether, hexane, and ethyl acetate root extracts of A. reticulata against 3rd instar larvae of Cx. quinquefasciatus. LC50 and LC90 values of ethyl acetate root extract was lower than petroleum ether and hexane root extracts after 24, 48, and 72 h of exposure. Crude and ethyl acetate root extracts showed excellent larvicidal activity against Cx. quinquefasciatus mosquito species. 100% mortality was observed at very low concentration for crude and ethyl acetate root extracts. LC50 and LC50 values gradually decreased with time of exposure for crude and ethyl acetate root extracts of A. reticulata. No mortality and sluggishness were observed in control experiments as well as on examined non target organisms. Phytochemical analyses of root extracts of the plant revealed the presence of different secondary metabolites. So crude and ethyl acetate root extracts of A. reticulata can effectively be used for larval mortality against Cx. quinquefasciatus mosquito species at a very low concentration.

Keywords
Annona reticulata; Culex quinquefasciatus; Root extract; Larvicide
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