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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。
The toxicities of alcohol, methanol and acetone extracts of Millettia pochycarpa seeds to the fourth instar and fourth instar larvae of Plutella xylostella were determined indoors by the instillation method. force. The results showed that the crude extract of Caulis Spatholobius had higher virulence to both pests and the toxicity of ethanol extract was the highest, followed by methanol and weaker acetone, which could be exploited in the future Insecticidal plant resources provided the basis.