Acer disease brown dots

QuestionsAcer disease brown dots
Mary O'Shea Staff asked 15 years ago

Every year my trees develop this type of fungus? starts on trunk and extends to branches. White sticky spots with brown dot in centre until it covers the whole trunk and all branches. Nimrod spray takes it away, but it returns the next year. Also stops new growth until I manage to clear it. Any help would be appreciated.