I have two cherry trees and the small one exhibited a lot of 'bleeding' of the bark areas early summer and now the leaves are looking very sad and yellow with the odd black spot. I had some gardening work done recently and the gardener dug up a massive root with lots of shoots and I am wondering if this has affected the growth of my tree. Good sized yellow/red cherries. The larger cherry tree is still very green and healthy looking and I am very concerned I have damaged the smaller one. Any advice?