Trees depend on bark to protect the inside of the trunk. Damage to the bark is more than an eyesore; it can be a life-or-death issue for your landscape trees.
Bark Damage Problems
Bark damage can lead to tree death, so it is not a minor problem. The bark serves an important purpose -- it protects the inner wood from insect and disease incursion. If the bark is missing, insects can more easily burrow into the wood.