Peronospora

Thesaurus

Noun

1.

Peronospora - genus of destructive downy mildews genus Peronosporafungus genus - includes lichen generafamily Peronosporaceae, Peronosporaceae - parasitic fungi: downy mildewsblue mold fungus, Peronospora tabacina - fungus causing a serious disease in tobacco plants characterized by bluish-grey mildew on undersides of leavesonion mildew, Peronospora destructor - fungus causing a downy mildew on onionsPeronospora hyoscyami, tobacco mildew - fungus causing a downy mildew on growing tobacco