I have a client that wants me to save their mountain ash in their front yard. There is a lot of dead stuff in the tree, and the last couple visits I'm finding large branches coming off. This tree is their only privacy from a high traffic highway, if possible i would like to save. There are some good limbs, so i was wondering if a revival is possible. Pictures: I have no clue on what action to take. I think it has fireblight. So far I have taken off a couple limbs that pose danger.