How to Manage Pests

Pests in Gardens and Landscapes

Quaking aspen

Quaking aspen
© 1995 Br. Alfred Brousseau,
Saint Mary's College of California

cottonwood, and aspen—Populus spp.*
Family Salicaceae (Willow family)

Plant Identification

Populus spp. are deciduous trees growing from 40 to 60 feet tall.

*Some species of Populus are invasive weeds. Other types of plants may be better choices when planting.

Optimum conditions for growth

Trees do best in full sun with regular deep irrigation. They grow rapidly and are best for low maintenance areas.

Populus alba
Populus alba

Pests and disorders of Populus spp.


Invertebrates (cont.)


Environmental disorders

Parasitic plants



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.