u/Due-Horror-6727

Hello All, i live in SE Minnesota. We have lot of deer and when the new tree was planted, i was advised to have black pipe around the tree bark to protect from deer. I was foolish and didn’t do much research and i left the the black pipe all these years. Landscaper happened to notice it and asked me to remove them right away. Once removed, two trees have damage like attached. Both have full canopy. Is there anything i can do to save them? Can they recover?