That scar is an artifact of a process called grafting, or fusing two separate pieces of wood into a new tree. From citrus to ...
Secure the bark with duct table wrapped around the tree trunk. Remove the tape within a year if it is still secure. If the bark has reattached itself to the tree, then it'll remain attached.
If you’ve recently purchased a fruit or nut tree — or if you already have one in your home landscape — take a close look at the trunk near the soil surface. You might see a faint scar where ...