Indan Journal of Medical Research Indan Journal of Medical Research Indan Journal of Medical Research
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REVIEW ARTICLE
Year : 2012  |  Volume : 135  |  Issue : 5  |  Page : 581-598

Plant extracts as potential mosquito larvicides


1 Department of Zoology, Bankura Christian College, Bankura, India
2 Mosquito & Microbiology Research Units, Parasitology Laboratory, Department of Zoology, The University of Burdwan, Burdwan, India

Correspondence Address:
Goutam Chandra
Professor, Department of Zoology, Mosquito & Microbiology Research Units, Parasitology Laboratory, The University of Burdwan, Burdwan 713 104, West Bengal
India
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Source of Support: None, Conflict of Interest: None


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Mosquitoes act as a vector for most of the life threatening diseases like malaria, yellow fever, dengue fever, chikungunya ferver, filariasis, encephalitis, West Nile Virus infection, etc. Under the Integrated Mosquito Management (IMM), emphasis was given on the application of alternative strategies in mosquito control. The continuous application of synthetic insecticides causes development of resistance in vector species, biological magnification of toxic substances through the food chain and adverse effects on environmental quality and non target organisms including human health. Application of active toxic agents from plant extracts as an alternative mosquito control strategy was available from ancient times. These are non-toxic, easily available at affordable prices, biodegradable and show broad-spectrum target-specific activities against different species of vector mosquitoes. In this article, the current state of knowledge on phytochemical sources and mosquitocidal activity, their mechanism of action on target population, variation of their larvicidal activity according to mosquito species, instar specificity, polarity of solvents used during extraction, nature of active ingredient and promising advances made in biological control of mosquitoes by plant derived secondary metabolites have been reviewed.


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