By Thomaslaing
United Kingdom 
i have a red rash of spots on my acer tree
21 Feb, 2011
Answers
could it be coral spot on some dead wood Bamboo?-- although some Acers have lovely unusual bark
21 Feb, 2011
Yes it could be, although they're not red, they're bright orange spots.
21 Feb, 2011
Since Acers are deciduous, I can only assume you mean red spots on the branches or trunk - photograph would be good.
21 Feb, 2011