Kannathasan Krishnan, Senthilkumar Annadurai, Chandrasekaran Manivachagam, Venkatesalu Venugopalan
Department of Botany, Annamalai University, Annamalai Nagar 608 002 Tamil Nadu, India.
Parasitol Res. 2007 Nov;101(6):1721-3. doi: 10.1007/s00436-007-0714-5. Epub 2007 Aug 15.
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).
在实验室饲养的致倦库蚊四龄初期幼虫被用于用黄荆、三叶蔓荆、蔓荆和尖叶布惊的叶提取物进行杀幼虫试验。这四种植物的甲醇提取物具有不同程度的杀幼虫特性。三叶蔓荆提取物的杀幼虫活性最高(半数致死浓度(LC50)= 41.41 ppm),其次是蔓荆(LC50 = 76.28 ppm)、尖叶布惊(LC50 = 128.04 ppm)和黄荆(LC50 = 212.57 ppm)。