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当前位置: 首页 > 文章 > 厚果鸡血藤种子提取物对两种蔬菜害虫的毒力 西南农业学报 2000,13 (2) 71-74
Position: Home > Articles > The toxicities of the extracts from seeds of Millettia pachycarpa to two insect pests of vegetable Southwest China Journal of Agricultural Sciences 2000,13 (2) 71-74

厚果鸡血藤种子提取物对两种蔬菜害虫的毒力

作  者：
姚松林;李凤良;王济虹
单  位：
贵州科学院生物研究所梵净山生态站;贵州省农科院植保所
关键词：
厚果鸡血藤;小菜蛾;菜青虫;毒力
摘  要：
在室内用点滴法测定了厚果鸡血藤（Ｍｉｌｌｅｔｔｉａ ｐｏｃｈｙｃａｒｐａ）种子乙醇、甲 醇和丙酮浸提物对小菜蛾（Ｐｌｕｔｅｌｌａ ｘｙｌｏｓｔｅｌｌａ）四龄幼虫、菜青虫（Ｐｉｅｙｉｓ ｒａｐａｅ） 四龄和五龄幼虫的毒力。结果表明厚果鸡血藤种子浸提物对这两种害虫均有较高的 毒力，并且以乙醇浸提物的毒为最高，甲醇次之，丙酮较弱，这为今后开发利用这 一杀虫植物资源提供了依据。
译  名：
The toxicities of the extracts from seeds of Millettia pachycarpa to two insect pests of vegetable
作  者：
YAO Song-lin, LI Feng-liang, WANG Ji-hong, (Ecological Observation Station of Fanjin Mountain, Institute of Bioing, Guizhau Academy of Sciences, Jiangkou 554400, China; Institute of Plant Protection, Guizhou Academy of Agriculture Sciences, Guiyang, 5500
关键词：
Millettia pachycatpa; Plutella xylostella; Pieris rapae; Toxicity
摘  要：
The toxicities of the extracts from seeds of Milettia pachycarpa to the fourth instal larvae of diamond back moth, Plutella xylostella, and to the fourth and fifth instar larvae of cabbage butterfly, Pieris rapae were reported in this paper. The experiment results showed that the extracts from of M. pachycarpa had marked contact toxic effects on those two pests. Using ethanol, methanol and acetone extracts against the fourth instar larvae of P. xylostella, the LD505 were 0. 3927 μg/larva, 0. 5546μg/larva and 0. 7608μg/larva respectively; against the fourth instar of p. rapae, the LD_(50) 5 were 0. 2354μg/larva, 0. 2611μg/larva and 0. 3974μg/larva respectively, and against the fifth instar larvae, the LD_(50)5 were 0.2585μg/larve, 0. 3099μg/larva and 0. 6313μg/larva respectively. It also indicated that the ethanol could extract the bioactive materials better than methanol and acetone do. The experiment results provided the scientific bases for further development and appliment of this pesticide plant.

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