pear leaf worm

例句：

1. 1.The pear leaf worm is a common pest in the orchard.
   梨叶虫是果园中的常见害虫。
2. 2.The pear leaf worm has been causing damage to the trees.
   梨叶虫已经给树木造成了损害。
3. 3. To control the pear leaf worm, we need to identify and eliminate its breeding sites.
   为了控制梨叶虫，我们需要识别并消除它的繁殖场所。