Applied Entomology and Vector Control Laboratory, Department of Zoology, Faculty of Science, Dayalbagh Educational Institute (Deemed University), Agra, 282110, India.
Parasitol Res. 2009 Nov;105(6):1653-9. doi: 10.1007/s00436-009-1609-4. Epub 2009 Sep 18.
In view of the recently increased interest in developing plant-based insecticides as an alternative to chemical insecticides, this study was undertaken to assess the larvicidal potential of the various fruit wall extracts of Momordica charantia (cucurbitaceae) against two species of mosquito vectors, Anophels stephensi and Culex quinquefasciatus. Among the extracts tested, petroleum ether (LC(50) = 27.60; 17.22 ppm and 41.36; 15.62 ppm) extract was found more effective than carbon tetrachloride (LC(50) = 49.58; 16.15 ppm and 80.61; 27.64 ppm) and methanol (LC(50) = 142.82; 95.98 ppm and 1,057.49; 579.93 ppm) extracts towards anopheline and culicine larvae after 24 and 48 h of exposure respectively. Thus, all fruit wall extracts of M. charantia are toxic to both the larval species. M. charantia may, therefore, act as an effective biolarvicide against mosquitoes in the future.
鉴于人们最近对开发植物性杀虫剂作为化学杀虫剂的替代品越来越感兴趣，本研究旨在评估苦瓜（葫芦科）不同果皮提取物对两种蚊虫传播媒介（致倦库蚊和白纹伊蚊）的杀幼虫潜力。在所测试的提取物中，石油醚（LC（50）= 27.60；17.22 ppm 和 41.36；15.62 ppm）提取物比四氯化碳（LC（50）= 49.58；16.15 ppm 和 80.61；27.64 ppm）和甲醇（LC（50）= 142.82；95.98 ppm 和 1057.49；579.93 ppm）提取物对按蚊和库蚊幼虫更有效，分别在暴露 24 和 48 小时后。因此，苦瓜的所有果皮提取物对两种幼虫都有毒性。因此，苦瓜将来可能会成为一种有效的蚊虫生物杀虫剂。
