Large oak trees
I have a large white oak that had a 2ft dia branch that broke off. Should i trim it flush with the trunk or leave it alone.
It is important to cut the stub but make sure you do it properly. Pay particular attention to the "branch collar". If you damage this - or don't cut the limb short enough - the wound will not heal. There are YouTube videos and a WikiHow on tree pruning to help you get it right. Do to the risk of oak wilt disease, pruning wounds on oaks must be immediately painted with a latex paint or tree-wound paint.