Classifications of Injuries commonly used in tree inventories.
| Mechanical injury |
| Branches |
| Utility or improper pruning damage |
| Breakage due to wind, snow, lightning or people |
| Trunk |
| Mower |
| Auto |
| Construction Vandalism Fire Lightning Roots |
| Sidewalk replacement Underground utilities Construction |
| Pest injury |
| Insects |
| Diseases |
| Decay/Cavity |
| Dieback |
| Mistletoe Rodents Bird |
| Environmental injury |
| Mineral deficiency |
| Leaf scorch |
| Herbicide damage |