Definition that contains powdery mildew
- erysiphe genus of powdery mildews
- family erysiphaceae family of fungi parasitic mostly on leaves; includes powdery mildews
- class pyrenomycetes class of fungi in which the fruiting body is a perithecium; includes powdery mildews and ergot and Neurospora
- genus erysiphe genus of powdery mildews
- erysiphaceae family of fungi parasitic mostly on leaves; includes powdery mildews
- pyrenomycetes class of fungi in which the fruiting body is a perithecium; includes powdery mildews and ergot and Neurospora