If you haven’t already, it might be time to thin your apple trees. The window for thinning is after pollination and before your fruit reaches approximately one inch in diameter. You’ll want to break up any clusters until only one fruit remains. Typically, we recommend that you leave the middle fruit, as it will be the best candidate for full, healthy growth. A rule of thumb is to leave 6 to 8 inches between remaining fruits on each limb, but take into consideration the size and health of the bra