| 单词 | downy mildew |
| 释义 | downy mildew in British Englishnoun Compare powdery mildew1. a serious plant disease, characterized by yellowish patches on the undersurface of the leaves, caused by the parasitic fungi of the family Peronosporaceae, such as Peronospora destructor: affects onions, cauliflower, lettuce, etc 2. any of the fungi causing this disease downy mildew in American English US a disease of angiosperms characterized by the appearance of whitish or downy patches of fungus on the surfaces of plant parts, caused by various fungi (familyPeronosporaceae) |
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