Several types of injury occur during construction. Those covered under other sections are grade changes and soil compaction. The other type of injury is mechanical injury to trunks. If the injury is minor, the tree will heal the wound with no difficulty. A major bark removal may kill some portion of the tree. Several wounds may girdle and kill a tree.
If you’ve ever unsuccessfully tried to get grass to grow in the small bare spots in your lawn, you probably made the mistake of not properly preparing the soil. Grass seed needs a lodging spot in order to hold itself in place and protect it against washing rain, drying sun and wind. Use your garden trowel or hoe to work up the upper layer of soil before laying down the seed. A power cultivator will enable you to prepare larger areas.