I have a few apple trees that have done very well for me but as I am trying to get them to grow skyward (out of the reach of the deer) I have reached a time where a few of them have some decent branches that "need" to go. My concern is - in one case it will essentially remove half the top of the tree. I will wait until the tree is dorment to prune, but will the tree survive this heavy of a reduction? Tree is very healthy and is now on its 2nd full season in the ground - tree was planted as a 5 gallon container tree. I have never had to make this heavy of a cut on a tree and I am a little nervous about it.