A few days ago, a large limb heavy with apples split off the main trunk of our apple tree. The branch did not completely break off so we cut off the limbs but left the main piece connected to the trunk and strapped it with bungee cords. (See images). How do we protect the rest of the tree? Should we cut the limb where it split or leave it strapped? Is there any protective ointment to put on the wound? Thank you, Debora