Sawadaea tulasnei

Sawadaea tulasnei is a species of powdery mildew in the family Erysiphaceae. It is found in Eurasia and North America, where it affects maples.

Description

The fungus forms dense, white sharp-edged patches on the leaves of its host. Sawadaea ''tulasnei affects multiple species in the genus Acer, but some hosts include Acer platanoides, A. macrophyllum, and A. tataricum. Some of these species can also be affected by other Sawadaea'' species.

Taxonomy

The species was first described by Fuckel in 1866 with the basionym Uncinula tulasnei. The species was transferred to the genus Sawadaea by Homma in 1937.