genus Peronospora
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Related to genus Peronospora: Peronospora destructor
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| Noun | 1. |  genus Peronospora - genus of destructive downy mildews fungus genus - includes lichen genera family Peronosporaceae, Peronosporaceae - parasitic fungi: downy mildews blue mold fungus, Peronospora tabacina - fungus causing a serious disease in tobacco plants characterized by bluish-grey mildew on undersides of leaves onion mildew, Peronospora destructor - fungus causing a downy mildew on onions Peronospora hyoscyami, tobacco mildew - fungus causing a downy mildew on growing tobacco |
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