fall army worm

例句：

1. 1.The army worm is a common pest in many agricultural areas.
   行军蚁是许多农业地区常见的害虫。
2. 2. The army worm's larvae can cause significant damage to crops.
   行军蚁的幼虫可以对农作物造成严重的损害。
3. 3. The army worm has been found to have a high resistance to some pesticides.
   研究发现行军蚁对某些农药具有很高的抗性。