If you let the tree grow tall not only is it hard to pick.

Mar 16, Apple trees benefit from proper pruning, spring and summer. CORVALLIS, Ore. - You can prune an apple tree any time of the year without hurting it, but late winter, just before spring, is probably best. The worst of the cold weather is past, so you won't be subjecting the fresh cuts to severe icing, but you'll still be able to influence the tree's spring treepruning.clubted Reading Time: 3 mins.
If you have a struggling apple tree, you’ll want to prune it when the leaves start growing. This is because it’s easier to see which limbs are dead and which ones are alive. Prune dead limbs out of the tree anytime of year. You can easily spot dead branches during the spring and summer.
Prune out any of the branches that are growing vertically. These branches don’t produce fruit, don’t support the shape of the tree, and use nutrients that could. Prune apple trees when they're dormant and you have at least 2 weeks of dry weather after making your pruning cut.
Apple trees are pruned in later winter or early spring, before the tree begins bud break (when the leaf and fruit buds start to unfurl) in eastern areas of the United States. However, the best time to prune apple trees in the Pacific Northwest is during the summer when the tree enters into a second dormant phase. You should never prune an apple tree Estimated Reading Time: 6 mins.
Mar 05, Apple trees can be pruned anytime after the leaves have fallen, but it’s best to wait until the extreme cold days of winter have passed but before any new growth has started.
Sub-zero temperatures can cause the cuts not to close correctly, which can lead to black treepruning.clubted Reading Time: 2 mins.