8月上旬,吉林、辽宁、内蒙古南部、河北、北京、天津、山西等地三代粘虫相继暴发,如此大面积的粘虫为害为近20年罕见,对玉米、谷子、水稻等粮食作物生产安全造成了严重威胁。鉴于粘虫具有远距离迁飞、集中爆发和隐蔽性等为害特点,并且已到了玉米的生长后期,防治起来相对比较困难。面对突发虫灾,中国农科院植保所和农药厂领导高度 In early August, the armyworms of three generations of armyworms in Jilin, Liaoning, southern Inner Mongolia, Hebei, Beijing, Tianjin and Shanxi have been reported one after another. Therefore, the large-scale armyworm infestation is rare for nearly 20 years and the production safety of grain crops such as corn, millet and rice Caused a serious threat. In view of armyworms with long-distance migration, concentrated outbreaks and hidden characteristics such as damage, and has reached the late maize growth stage, the prevention and control is relatively difficult. In the face of sudden pest disaster, the Chinese Academy of Agricultural Sciences plant protection and pesticide plant leadership