Podosphaera fragariae

The fungus forms thin, white irregular patches on the leaves of its host. Podosphaera fragariae, like most Erysiphaceae, is highly host-specific and infects only a couple of genera. The species on American species of Potentilla and Fragaria is an undescribed member of the Podosphaera aphanis complex.^[1]

The fungus was formally described in 1887 by Harz with the basionym Oidium fragariae. The new combination Podosphaera fragariae was created by Bradshaw and Liu in 2025. It is a member of the Podosphaera aphanis complex of species and was formally considered conspecific with that species.^[1]