Incidence of insects, diseases, and other damaging agents in Oregon forests
By: Paul Dunham.
Contributors: Pacific Northwest Research Station (Portland, Or.)
Series: Resource bulletin PNW -- RB-257; Resource bulletin PNW -- 257
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station
Published: 2008
Place of publication: Portland, OR
Language: eng
Number of pages: 89
Subjects: Forest surveys -- Oregon -- Statistics; Forest insects -- Oregon -- Statistics; Trees -- Diseases and pests -- Oregon -- Statistics; Trees -- Wounds and injuries -- Oregon -- Statistics
Genres: Statistics
Description: This report uses data from a network of forest inventory plots sampled at two points in time, annual aerial insect and disease surveys, and specialized pest damage surveys to quantify the incidence and impact of insects, diseases, and other damaging agents on Oregon's forests. The number and volume of trees damaged or killed by various agents is summarized. Differences in the frequency and severity of damaging agents between various ownership categories and geographic regions of the state are investigated.
Notes: Cover title.

"November 2008."

Includes bibliographical references (p. 83-87).

Also available on the World Wide Web.