I have a peach tree and it stopped growing and the leaves started to wilt, but then the tree grew new leaves and they looked great. However, the old leaves kept getting worse. They are now dropping about one a week and I was wondering if I should trim all the poor leaves off it and try to encourage new leaves to grow. I saw it done with a pepper plant before, but didn't know if it will work for a small peach tree.
Here is a picture of the tree. It is a couple of weeks old and the problem has gotten a little bit worse.