Dispose of both parts in a leaf bag or similar container and thoroughly disinfect.
Cut large limbs where they connect to the trunk.
The best time to prune a crabapple tree is late winter or early spring when the tree is dormant. But you should wait until after the last frost has passed, which could vary based on the climate where you live.
Jul 20, The time for crabapple pruning is when the tree is dormant, but when the possibility of severely cold weather has passed. This means pruning should be done in late winter or early spring, depending on your local climate and temperatures.