Podosphaera (genus)
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Podosphaera macularis symptoms on hop (click on image to enlarge it)
Author(s): David Gent, USDA Agricultural Research Service
Source: IPM Images
Author(s): David Gent, USDA Agricultural Research Service
Source: IPM Images
Podosphaera Kunze 1823
The fungi of this genus are widespread and cause powdery mildew diseases on fruit trees and various other crops. The tiny fruiting bodies (chasmothecia) each contain a single ascus with 8 (sometimes 6) spores.
The conidia always contain fibrosin bodies. These are refractive protein inclusion bodies which have an elongated or cone-shaped structure and can help in the identification. Oidium species have been described as anamorph forms.
Currently, the following species of Podosphaera have been entered into the system:
