近年来,由于受气候及种植业结构调整等因素的影响,我省蔬菜等作物上斜纹夜蛾发生为害加剧,局部成灾。有的年份有的地方出现了幼虫成群结队越过田埂、马路的现象,部分田块上的作物被殆食一空。2002年由于气候高温干旱,斜纹夜蛾在我省暴发为害具有以下特点:一是为害面积居高不下:全省 In recent years, due to climate and crop structure adjustment and other factors, the province of vegetables and other crops on Spodoptera exuvia aggravated, local disaster. In some places, some larvae appeared in droves and crossed the fields and roads. Some of the crops on the fields were almost completely eaten up. In 2002 due to the climate of high temperature and drought, Spodoptera exigua damage in our province has the following characteristics: First, the high damage area: the province