Aerial surveys for swiss needle cast in western Oregon
By: [project investigators, Alan Kanaskie ... [et al.]]
Contributors: Pacific Northwest Research Station (Portland, Or.); National Association of State Foresters
Publisher: Pacific Northwest Research Station, USDA Forest Service, Forestry Sciences Laboratory
Published: 2002
Place of publication: Portland, OR
Language: eng
Subjects: Swiss needle cast; Douglas fir; Diseases and pests; Aerial surveys in forestry
Other titles: West Coast forest health monitoring evaluation monitoring project
Notes: Cover title.

"National Association of State Foresters."

"1/02"--P. [8].