摘要
目的 :了解河北地区杀虫植物资源概况 ,寻找和开发本省植物性杀 (抑 )虫剂。方法 :丙酮和植物干粉按 6∶1的比例浸泡提取 ,提取液以水稀释 30倍和 10 0倍浸渍处理淡色库蚊Ⅲ～Ⅳ龄幼虫。结果 :以 30倍稀释液处理 ,造成蚊幼虫死亡率达 5 0 %以上的植物有 44种 ;以 10 0倍液浸渍 ,造成蚊幼虫死亡率 95 %以上的植物共 7种 ,其中茵陈蒿、薄荷提取液的死亡率达 10 0 % ;试验中发现一些植物提取液对蚊幼虫具有生长发育的抑制作用。结论 :杀虫植物所含成分对不同昆虫生物活性的敏感性不同 ,蒺藜、茵陈蒿、薄荷、佩兰、曼佗罗、艹律 草等植物 ,在防制蚊虫方面具有进一步开发利用的价值。
species of plants were collected mainly in Hebei province for selection of botanical insecticides. These plants were air-dried and ground, then extracted by acetone in a ratio of acetone/plant powder=6/1. In the tests of soaking 3-4 instar larvae of Culex pipiens pallens with 30-fold diluents of the plant extractions, 44 species of plants caused at least 50% mortality of the larvae. Treated with 100-fold diluents, 7 plants extractions caused more than 95% mortality of the larvae, and 2 of those, Memtha haplocalyx and Artemisia capillaris caused 100% mortality. In conclusion, some plants, such as Tribulus terresteis, Memtha haplocalyx, Artemisia capillaris, Eupatorium fortunei, Datura stramouium and Humulus scamdens , have value of development.
出处
《中国媒介生物学及控制杂志》
CAS
CSCD
2000年第1期27-29,共3页
Chinese Journal of Vector Biology and Control
基金
河北省自然科学基金! (编号3 962 90 )
关键词
淡色库蚊
杀虫植物
毒效作用
开发利用
Insecticidal plants
Toxicity
Selection
Culex pipients pallens
