关键词: 植物, 淡色库蚊, 幼虫, 毒效

Abstract: Objective To investigate the general situation of the plant which could kill the mosquito, and to search and empolder these plant in this area. Methods Extract liquor from plant which could kill the mosquito by water, acetone and ethanol respectively or ethanol. The late third-stage and the early fourth-stage Culex pipiens pallens larvae were treated by diluted extraction. Results There were 12 kinds of plant that induced the 50% mortality of larvae by 20 times diluted, and only 5 kinds of plant that induced the 80% mortality of larvae by 50 times diluted. The 5 kinds of plant were upeh anemone herb, Radix stemonae, Apocynaceae leaf, Polygonum flaccidum Meissn and Radix et Rhizoma Veratri, and their control efficiency reached 86%, 88%, 96%, 98% and 94%, respectively. Conclusion The plants mentioned above had good killing effect on the larvae of Cx.pipiens pallens, but it still needed to further study for their development and application.