African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12487

Full Length Research Paper

Larvicidal efficacy of Toddalia asiatica (Linn.) Lam against two mosquito vectors Aedes aegypti and Culex quinquefasciatus

Borah R.1*, Kalita M. C.1, Kar A.2 and Talukdar A. K.3
1Environmental Biotechnology Laboratory Department of Biotechnology, Gauhati University, Guwahati, Assam, India. 2Department of Botany, Gauhati University, Guwahti, Assam, India. 3Department of Chemistry, Gauhati University, Guwahti, Assam, India
Email: [email protected]

  •  Accepted: 16 February 2010
  •  Published: 30 April 2010

Abstract

The hexane, acetone and methanol extracts of mature fruits and leaves fromToddalia asiatica was investigated to establish its bio-control potentiality under laboratory condition against fourth instars larvae of Dengue vector, Aedes aegyptiand Filarial vector, Culex quinquefasciatus. Hexane extract of fruits of T. asiaticashowed highest larvicidal activity against both mosquito vector. LC50 value of hexane, acetone and methanol extracts of fruits against A. aegypti were 37.23, 50.69 and 125.55 ppm and against C. quinquefasciatus were 33.23, 82.20 and 215.19 ppm, respectively. Hexane, acetone and methanol extracts of leaves also showed potency against A. aegypti with LC50 values of 133.80, 177.20 and 79.48 and against C. quinquefasciatus with LC50 values of 164.53, 175.28 and 87.87 ppm, respectively .These results suggested that T. asiatica is promising as larvicide against both targeted mosquitoes.

 

Key words: Toddalia asiatica, larvicidal activity, Culex quinquefasciatus, Aedes aegypti.

Copyright © 2024 Author(s) retain the copyright of this article.

This article is published under the terms of the Creative Commons Attribution License 4.0

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