downy mildew

1. (noun) any of various fungi of the family Peronosporaceae parasitic on e.g. grapes and potatoes and melons
Synonyms: false mildew
Related Words: Peronospora destructor, Peronospora hyoscyami, Peronospora tabacina, blue mold fungus, mildew, onion mildew, tobacco mildew



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