How to Manage Pests

Pests in Gardens and Landscapes


The bark of young tree trunks and exposed limbs on older trees may be sensitive to sunburn. Sunburned bark is cracked, somewhat sunken, and is susceptible to attack by wood borers and wood-rot fungi.


Use tree wrap or paint trunks of young trees with whitewash or a white, interior water-based paint to protect them against sunburn.

Sunburned bark
Sunburned bark

Girdled plant
Girdled plant

Statewide IPM Program, Agriculture and Natural Resources, University of California
All contents copyright © 2017 The Regents of the University of California. All rights reserved.

For noncommercial purposes only, any Web site may link directly to this page. FOR ALL OTHER USES or more information, read Legal Notices. Unfortunately, we cannot provide individual solutions to specific pest problems. See our Home page, or in the U.S., contact your local Cooperative Extension office for assistance.

Agriculture and Natural Resources, University of California

Accessibility   Contact webmaster.