By Artyjimfred
United Kingdom 
my acer has a white mould on the leafs
18 Jul, 2011
Answers
I just noticed white mould on the leaves of my very large copper acer, it is also putting out new tiny bright leaves.
30 Jul, 2011
Sounds like powdery mildew, but these plants don't usually succumb to that. Any chance of a photograph?
19 Jul, 2011