How to Manage Pests

Pests in Gardens and Landscapes


Bark, wood, and roots can be wounded or injured by people, animals, or adverse environmental conditions. Wounds can attract boring insects, serve as entry sites for disease-causing organisms, and lead to limb, root, or trunk failure or death. Injuries are caused by pruning, injections or implants, and by vehicles or equipment striking bark or compacting soil over roots. Deer, gophers, rabbits, mice, and other animals damage plants by gnawing bark and wood. Drought, frost, hail, ice, snow, and lightning also can cause injuries.


Prevent injuries to landscape plants by protecting landscapes. Remove and dispose of all recently dead wood and dying trees. Prevent injuries to roots and aboveground parts. Examine trees regularly to see that they are receiving proper cultural care.

Wound in tulip tree trunk
Wound in tulip tree trunk

Statewide IPM Program, Agriculture and Natural Resources, University of California
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Agriculture and Natural Resources, University of California

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