leaf rust disease

例句：

1. 1. The trees are showing signs of leafrust disease.
   这些树出现了叶锈病的迹象。
2. 2. To prevent the spread of leaf rustdisease, we need to regularly inspect andtreat the plants.
   为了预防叶锈病的传播，我们需要定期检查和治疗植物。
3. 3.The farmers have been working hard to controlthe spread of leaf rust disease in theirfields.
   农民们一直在努力控制田间叶锈病的蔓延。