Table of Contents
Advances in Zoology
Volume 2014, Article ID 745015, 7 pages
Research Article

Pesticidal and Mosquitocidal Activities of Clausena excavata Burm. F. (Rutaceae) against Spodoptera litura (Fab.) (Noctuidae: Lepidoptera) and Aedes aegypti L., Anopheles stephensi Liston, and Culex quinquefasciatus Say. (Diptera: Culicidae)

Unit of Entomotoxicity, Department of Advanced Zoology & Biotechnology, Government Arts College (Autonomous), Nandanam, Chennai, Tamilnadu 600 035, India

Received 26 April 2014; Revised 23 July 2014; Accepted 23 July 2014; Published 10 September 2014

Academic Editor: Cleber Galvão

Copyright © 2014 Mathivanan Thangarasu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The aim of this paper is to evaluate the larvicidal and ovicidal activities of hexane, diethyl ether, dichloromethane, ethyl acetate, and methanol extract of Indian medicinal plant, Clausena excavata, at different concentrations against lepidopteran agricultural field pest, Spodoptera litura (Lepidoptera: Noctuidae), and Aedes aegypti, Anopheles stephensi, and Culex quinquefasciatus (Diptera: Culicidae). Twenty-five early fourth instar larvae of S. litura and A. aegypti, An. stephensi and C. quinquefasciatus were exposed to various concentrations and were assayed in the laboratory by using specific protocols. The 24 h LC50 and LC90 values of the C. excavata leaf extract was determined by probit analysis. The ovicidal activity were determined against S. litura and A. aegypti, An. stephensi, and C. quinquefasciatus and was assessed 120 hrs after treatment. Results of this study show that the selected Indian medicinal plant C. excavata may be a potential source of natural larvicidal and ovicidal activities against selected pest and vector mosquitoes.