Humans can injure plants in a variety of ways from lawn maintenance equipment like mowers and weedwackers to contact with trucks and vehicles. Children can climb and break limbs of trees, carve initials in bark. These injuries are often entry points for insects or pathogens. Large wounds can take many years to seal and are entry points for wood decay and other organisms.
Improper pruning, watering, fertilizing, mulching - most which are done in an attempt to increase plant health - can all be damaging if not done correctly. The best course is to have a professional arborist manage the health of your trees and shrubs before a little human damage turns into a bigger problem for your woody plants.
