[目的]研究蒌蒿杀虫成分对菜粉蝶的生物学活性。[方法]在微波辅助加热条件下,以乙醇、乙醚、水、甲苯为溶剂对蒌蒿进行浸提,测定各溶剂提取物对菜粉蝶幼虫的拒食、胃毒、触杀和熏蒸活性。[结果]各溶剂提取物对菜粉蝶幼虫均表现出一定的拒食、胃毒、触杀和熏蒸活性,其中,以乙醇提取物的生物活性最强。[结论]该研究结果可为开发利用蒌蒿植物源杀虫剂提供参考。 [Objective] The research aimed to study the biological activity of insecticidal components of Chrysanthemum morifolium to Pieris rapae. [Method] The extracts of Artemisia selengensis were extracted with ethanol, diethyl ether, water and toluene as solvent under microwave-assisted heating condition to determine the antifeeding, stomach poisoning, contact killing and fumigation activity of each solvent extract on the cabbage larvae. [Result] Each solvent extract showed certain antifeeding, stomach poisoning, contact poisoning and fumigating activity to Cabbage butterfly larvae. Among them, ethanol extract had the strongest biological activity. [Conclusion] The results of this study can provide references for the development and utilization of plant-derived insecticides.