Hawthorn problem

QuestionsHawthorn problem
Gerry McGovern Staff asked 15 years ago

A Hawthorn (pink flowerng) about 13 years od. It did not thrive this year, leaves thin,flowers poor and the leaves are almost gone now. I attach a photo taken in mid August. See the burnt leaves and the fungus like growth on the branch. This fungus is now yellow and crumbly and covers most of the outer twigs and branches. Any ideas on what I could do?