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Asian Journal of Biological Sciences
Year: 2012  |  Volume: 5  |  Issue: 4  |  Page No.: 201 - 208

Effect of Murraya paniculata Leaf Extract Against Culex quinquefasciatus Larva

Manop Kjanijou, Kanitta Jiraungkoorskul, Piya Kosai and Wannee Jiraungkoorskul    

Abstract: The mosquito-borne diseases are still the public health’s problems. So, in order to cope with these problems the development of ideal and novel natural product is essential for mosquito larvae’s control. The efficacy of mosquito larvicide of Murraya paniculata leaf aqueous extract was investigated by determining the median lethal concentration, LC50, within 24, 48, 72 and 96 h. Additional, the 25% 24 h LC50 of this extract against the Culex quinquefasciatus larva was investigated after 24 h exposure by using the histological analysis. The histology of the mid-gut was studied and it was found to be different from the normal larvae such as separation of the epithelial cells from the basement membrane, elongation protruded into its lumen, disruption of the microvilli, appearance several vesicles and cytoplasm masses. The results of this study suggested that the aqueous extract of this leaf had a larvicidal property and it could a used as a novel way to control and eradicate the mosquito’s larvae, without the use of harmful pesticides currently available in the market.

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