1999年 9月下旬至 1 0月初 ,粘虫在铜鼓县部分一季晚稻成熟后期暴发 ,个别严重田块稻谷产量损失60 %以上。此次发生的粘虫有两种 ,即粘虫和劳代粘虫 ,以劳代粘虫为主 (占 60 %～ 80 %)。粘虫迁移时 ,所过之处的杂草均被取食一空 ,为历年罕见。今年一晚后期粘虫之所以暴发 ,主要 From late September to early January 1999, armyworm outbreaks occurred in the late season of late rice season in part of Tonggu County, with more than 60% loss of paddy output in some serious fields. The occurrence of the two kinds of armyworms, namely, armyworm and worker-generation armyworms, workers to armyworm-based (accounting for 60% to 80%). When the armyworm migrated, the weeds in the place where it was eaten were rare and were rare throughout the years. The reason why the armyworm outbreak later this year broke out, mainly