A very good tree wrap it "Tree Armor". I am not sure that using duct tape is a good solution as it may suffocate the tree and restrict growth. We also use a natural product called Deer Repellent packs that uses a deer's natural instincts to keep deer away from trees, shrubs and other landscaping with great success. You can see these products here:
https://www.amazon.com/dp/B00DCCUP5S/
https://www.amazon.com/dp/B00DCCUP5S/
