Girdling of fruit trees may be caused by rodents, sun-scald, winter injury, disease, or mechanical injuries such as those resulting from cultivating. If girdling is not repaired, the damaged trees die. Girdling is the result of destruction of the bark and living tissue that connect the roots of a tree with the part that is above the injury. Repair consists of reestablishing the connection. Girdled trees often can be saved by bridge grafting or by inarching. To be successful, either type of repair must be made soon after injury. If girdling injury is entirely above ground or if it has not seriously damaged the main roots, it can be repaired by bridge grafting. If the roots are damaged so badly that pieces cannot be grafted on them, the trees must be repaired by inarching.