贪夜蛾(Laphygma exiguaHiibner)又名甜菜夜蛾。其幼虫杂食性,为害甜菜、棉、麻、茄果类、豆类及谷类等。为害花卉植物,过去未见有报道。去年,上海郊区龙华、梅陇、虹桥等地发现贪夜蛾大肆为害康乃馨的生长点、嫩头、花蕾和花,造成很大损失。据调查露地早熟切花,在8月中下旬,为害最重,株为害率达62％,至9月上旬,切花生产地,花蕾的被害率为14％,到9 Spodoptera frugiperda (Laphygma exiguaHiibner), also known as beet armyworm. Its larvae omnivore, harm beet, cotton, hemp, eggplant, beans and cereals. Damaged flower plants, no reports of the past. Last year, Longhua, Meilong, Hongqiao and other places in Shanghai’s suburb discovered the growth point, tender head, flower buds and flowers of the spider mite infesting carnations, causing great losses. According to a survey of open cut early maturing flowers, in late August, the most damaging, strain rate of 62%, to early September, cut flower production, flower buds were 14% to 9