peronospora destructor

Noun
  1. Fungus causing a downy mildew on onions (synset 113002061)
    is a type of: downy mildew, false mildew - any of various fungi of the family Peronosporaceae parasitic on e.g. grapes and potatoes and melons
    belongs to: genus peronospora, peronospora - genus of destructive downy mildews
    same as: onion mildew

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