Ovicidal activity of Pithecellobium dulce (Family: Fabaceae) leaf and seed extracts against fi lariasis vector mosquito Culex quinquefasciatus (Diptera: Culicidae)

Authors

  • Marimuthu Govindarajan Mohan Rajeswary, S. L. Hoti, Giovanni Benelli

Abstract

Mosquito-borne diseases with an economic impact create a loss in commercial and labor outputs, particularly in
countries with tropical and subtropical climates. Mosquito control is facing a threat because of the emergence of
resistance to synthetic insecticides. Insecticides of botanical origin may serve as suitable alternative biocontrol
techniques in the future. In view of recently increased interest in developing plant origin insecticides as an
alternative to chemical insecticide, in the present study ovicidal efficacy of different solvent leaf and seed extract
of Pithecellobium dulce against filariasis vector C. quinquefasciatus. The ovicidal efficacy of the crude leaf extracts
of P. dulce with five different solvents, such as benzene, hexane, ethyl acetate, methanol, and chloroform, was
tested against C. quinquefasciatus. Ovicidal activity was determined against C. quinquefasciatus mosquito to
various concentrations ranging from 100 to 600 mg/L under the laboratory conditions. Among five solvent tested
the maximum efficacy was observed in the leaf and seed methanol crude extract was found to be most effective
for ovicidal activity against vector mosquito. The extract of methanol exerted 100% mortality at 500-600 mg/L
against C. quinquefasciatus. From the result, it can be concluded the crude extract of P. dulce was a potential
candidate to develop newer and safer ovicides against C. quinquefasciatus.

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Published

27-11-2015

How to Cite

Mohan Rajeswary, S. L. Hoti, Giovanni Benelli, M. G. (2015). Ovicidal activity of Pithecellobium dulce (Family: Fabaceae) leaf and seed extracts against fi lariasis vector mosquito Culex quinquefasciatus (Diptera: Culicidae). Journal of Medicinal Herbs and Ethnomedicine, 1, 116–119. Retrieved from https://updatepublishing.com/journal/index.php/jmhe/article/view/2884

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