Oviposition deterrent and skin repellent activities of Solanum trilobatum leaf extract against the malarial vector Anopheles stephensi

J Insect Sci. 2005:5:15. doi: 10.1093/jis/5.1.15. Epub 2005 May 10.

Abstract

The leaf extract of Solanum trilobatum (Solanaceae) was tested under laboratory conditions for oviposition deterrent and skin repellent activities against the adult mosquito Anopheles stephensi. Concentrations of 0.01, 0.025, 0.05, 0.075 and 0.1% reduced egg laying by gravid females from 18 to 99% compared to ethanol-treated controls. In skin repellent tests, concentrations of 0.001, 0.005, 0.01, 0.015, and 0.02 % provided 70 to 120 minutes protection against mosquito bites, whereas the ethanol control provided only 2.2 minutes of protection. Both oviposition deterrent and skin repellent activity were dose dependent. The results suggest that the leaf extract of S. trilobatum is an effective oviposition deterrent and skin repellent against An. stephensi.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anopheles / drug effects*
  • Anopheles / physiology
  • Dose-Response Relationship, Drug
  • Female
  • Humans
  • Insect Control / methods
  • Insect Repellents* / chemistry
  • Insect Vectors / drug effects*
  • Insect Vectors / physiology
  • Malaria / prevention & control
  • Oviposition / drug effects*
  • Plant Extracts / chemistry
  • Plant Extracts / pharmacology
  • Plant Leaves / chemistry
  • Solanum / chemistry*

Substances

  • Insect Repellents
  • Plant Extracts