Hi this is my first post and not sure if it is the right place for this or not. Anyway if its not, my apologies. So I have a mature James Grieve apple tree and as I was not sure or to be honest feart to do it my self, (so for want of a better word) I got a so called professional tree surgeon to prune and take it back as it was meant to be on a dwarf stock root sorry I digress to cut a long story short he came and done it when I was out and he certainly cut the tree back I was shocked and upset at the state of the tree. I asked him to take it back in height by one quarter he took it back by three quarter's or more with a chainsaw totally butchered it. When it started to grow back the new growth was as strait as a rule, and not strong, and now I think my tree has brown rot as the fruit all of it has dark ugly cracks and splits all over, it also now has canker. Should I just cut the tree down and burn it or is it saveable he did the same thing to my pear tree as well, also with similar results. I Cant publish photos at the moment. So can anyone help with this before I cut the tree down oh I did get wonderful fruit before this was done.