Hello, running out of grow space on my backyard. So for the last few years I decided to plant my fruit trees using espalier method to maximize growing space. Here is my 6 years old espalier Cherimoya in the pot. I have been training it along with plum and peach trees and still learning. Question is what is the appropriate time to thin/prune the cherimoya branches. Should I do it in summer after fruit set or in the fall?