近年来斜纹夜蛾在烟台市发生呈上升趋势。２００２年大暴发，多种果树苗木、蔬菜、农作物、牧草受害。其中三叶草受害较重，有的地块每平方米有幼虫３００多头，叶片几乎全部吃光，严重影响了绿化效果。１９９８～２００２年，笔者利用黑光灯诱测成虫，并对三叶草单一种植、三 In recent years, Spodoptera litura occurred in Yantai City, an upward trend. Outbreak in 2002, a variety of fruit trees, vegetables, crops, pasture victims. Clover which suffered heavy, and some plots of larvae per square meter has more than 300, almost all of the leaves eaten, seriously affecting the greening effect. From 1998 to 2002, the author used adult black light to induce adults and cultivated clover singlely