I see. You have nothing to lose but you want to save the plant. I would spray it with milk every 2 weeks. Even though it looks dead, the milk is a good "food" for the microbes that live on the outside of the plant. Spray every surface that is exposed, leaves, bark, everything.
Actually, this entire reply, not just the quote, is exactly what I needed. My thanks for a full answer. Fortunately, caught the tree soon after it had been torn out, so branches are still pliable. Will loosen guy lines [threaded thru hose sections] to allow waggle room and will gladly experiment with the milk suggestion. Whodathunkit?