Uncinula_tulasnei
Sawadaea tulasnei
Species of fungus
Sawadaea tulasnei is a form of powdery mildew[1] is a species of fungus in the family Erysiphaceae.[2][3][4][5][6][7][8]
This fungus attacks the leaves of the Acer platanoides (Norway maple) in North America,[1] and in Great Britain and/or Ireland, Acer palmatum (also known as the Japanese Maple or Smooth Japanese Maple).[2]