Septoria citrullicola

例句：

1. 1. The apple tree is showing signs of septoria citrullicola infection.
   苹果树显示出立枯病感染的迹象。
2. 2. The farmer has to deal with the challenge of septoria citrullicola in his crops.
   农民必须应对作物中立枯病的挑战。
3. 3. The disease spreads quickly through the soil, making it difficult for farmers to control.
   这种病通过土壤迅速传播，使得农民难以控制。