title: Differential larvicidal efficacy of four species of Vitex against Culex quinquefasciatus larvae.
abstract: The early fourth instar larvae of Culex quinquefasciatus, reared in the laboratory were used for larvicidal assay with leaf extracts of Vitex negundo, Vitex trifolia, Vitex peduncularis and Vitex altissima. The methanol extracts of the four species possessed varying levels of larvicidal nature. The highest larvicidal activity was found with the extract of V. trifolia (LC(50) = 41.41 ppm) followed by V. peduncularis (LC(50) = 76.28 ppm), V. altissima (LC(50) = 128.04 ppm) and V. negundo (LC(50) = 212.57 ppm).
authors: Department of Botany, Annamalai University, Annamalai Nagar 608 002 Tamil Nadu, India.
authors: Krishnan
authors: K
authors: Kannathasan
authors: Annadurai
authors: A
authors: Senthilkumar
authors: Manivachagam
authors: M
authors: Chandrasekaran
authors: Venugopalan
authors: V
authors: Venkatesalu
mesh_terms: D000818:Animals; D003465:Culex / Q000187:drug effects* / Q000254:growth & development*; D007306:Insecticides / Q000494:pharmacology*; D007814:Larva / Q000187:drug effects; D010936:Plant Extracts / Q000494:pharmacology*; D018515:Plant Leaves / Q000737:chemistry*; D020950:Vitex / Q000737:chemistry* / Q000145:classification
chemical_list: D007306:Insecticides; D010936:Plant Extracts
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