UC IPM Home > Homes, Gardens, Landscapes, and Turf > Trees and Shrubs > Arborvitae

How to Manage Pests

Pests in Gardens and Landscapes

More trees and shrubs

Arborvitae—Platycladus orientalis, Thuja occidentalis
Western red cedar—Thuja plicata
Family Cupressaceae (Cypress family)

Plant Identification

Arborvitaes are evergreen trees or shrubs, often shaped into cones or cylinders.  Leaves are yellowish green and needlelike.  Younger leaves are soft and feathery, while older leaves are more scalelike.  Arborvitaes produce small bluish green cones that turn a brownish color.

Optimum conditions for growth

Arborvitaes are often grown along walkways as hedges.  They grow well in areas with full sun but need partial shade in very hot climates.  Arborvitaes need regular or moderate amounts of water and do best in well-drained soils.   

Foliage of western red cedar
Needlelike leaves of western red cedar

Pests and disorders of Platycladus and Thuja spp.

Invertebrates

Diseases

Environmental disorders

Weeds

Vertebrates

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.

Acknowledgements Staff-only pages Subscribe (RSS) Contact UC IPM

Agriculture and Natural Resources, University of California

© Friday, 01-Dec-2017 16:06:20 PST Regents of the University of California Division of Agriculture and Natural Resources Nondiscrimination Statement

Accessibility   Contact webmaster.