瓜类白粉病是黄瓜、南瓜、西葫芦、冬瓜等蔬菜的常见病害。防治瓜类白粉病可采取以下方法:1.实行3年以上轮作或水旱轮作。及时整枝打叶,发现霉斑叶片应及时摘除,采收完果实后应将病株残叶清除到田外烧毁。 Melon powdery mildew is cucumber, pumpkin, zucchini, melon and other vegetables common diseases. Melon powdery mildew prevention and control can take the following methods: 1. The implementation of more than 3 years rotation or drought and drought rotation. Timely pruning leaves, mildew spot leaves should be promptly removed, after the harvest fruits should be removed to the field after the residual leaves burned.