Journal of Environmental Biology
pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP
Search the Journal web-site through Google:
Abstract - Issue Jan 2008, 29 (1) Back
Larvicidal activity of neem and karanja oil cakes against mosquito vectors, Culex quinquefasciatus (Say), Aedes aegypti (L.) and Anopheles stephensi (L.)
R. Shanmugasundaram, T. Jeyalakshmi, M.Sunil Dutt and P. Balakrishna Murthy*
Institute of Biotechnology and Toxicology, Padappai, Kancheepuram - 601 301,?
(Received: March 03, 2006 ; Revised received: November 10,2006 ;? Accepted: December 03, 2006)
Abstract: Larvicidal effect of neem (Azadirachta indica) and karanja (Pongamia glabra) oil cakes (individuals and combination) was studied against mosquito species. Both the oil cakes showed larvicidal activity against the mosquito species tested. The combination of neem and karanja oil cakes in equal proportion proved to have better effect than the individual treatments. The combination of the two oil cakes recorded an LC95 of 0.93, 0.54 and 0.77% against the mosquitoes, Culex quinquefasciatus, Aedes aegypti and Anopheles stephensi respectively. The increase in efficacy of the combination treatment over individuals in all the mosquito larvae tested was found to range about 4 to 10 fold in terms of LC50 and 2 to 6 fold in terms of LC95.
Copyright ? 2008 Triveni Enterprises. All rights reserved. No part of the Journal can be reproduced in any form without prior permission. Responsibility regarding the authenticity of the data, and the acceptability of the conclusions enforced or derived, rest completely with the author(s).