powdery mildew

views updated May 23 2018

powdery mildew Either a fungus of the order Erysiphales or a plant disease caused by such a fungus. The leaves, fruit, etc., of an infected plant bear characteristic powdery white patches of conidium-bearing mycelium; tiny black perithecia may also be visible. Many types of plant may be affected, usually each by its own particular species or strain of fungus.

powdery mildew

views updated Jun 11 2018

powdery mildew Either a fungus of the order Erysiphales or a plant disease caused by such a fungus. The leaves, fruit, etc. of an infected plant bear characteristic powdery white patches of conidium-bearing mycelium; tiny black fruit bodies containing haploid spores (perithecia) may also be visible. Many types of plant may be affected, usually each by its own particular species or strain of fungus.

More From encyclopedia.com