See text 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]

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