cucumber mildew

例句：

1. 1.The cucumbers were starting to show signs of mildew.
   黄瓜开始出现霉菌的迹象。
2. 2.The farmer sprayed the cucumbers with a fungicide to prevent mildew.
   农民用杀菌剂喷洒黄瓜以防止霉菌。
3. 3.The cucumbers are sensitive to moisture and can easily develop mildew if not stored properly.
   黄瓜对湿度敏感，如果储存不当很容易发生霉菌。