---

期 刊 ：植物保护学报 1999年

关键词：苦槛蓝；菜青虫；生物活性；生理效应；

Keywords:Myoporum bontioides, Pieris rapae, bioactivity, physiological reaction,

摘 要 ：首次系统报道了苦槛蓝对菜青虫的拒食，毒杀作用和影响生长发育的作用。试验表明，１％苦槛蓝氯仿萃取物对菜粉蝶４龄，５龄幼虫的非选择性拒食率均在９４％以上，对４龄幼虫的ＡＦＣ５０，ＡＦＣ９５分别为０．１２％和０．７８％；处理后７２ｈ，４龄试虫的校正死亡率为８０．８％；处理后４ｄ，试虫的平均体重仅为对照的３６．７４％；经１％氯仿萃取物处理，４龄试虫羽化率仅为３．３３％，发育抑制率达８８．８９％。

Abstract:The significant antifeeding action and poisoning of the extracts of Myoporum bontioides leaves against Pieris rapae L. were first reported in this paper. The results indicated that chloroform extract shows higher level bioactivity than methanolic and petr

---