Field guide to the common diseases and insect pests of Oregon and Washington conifers /

Bibliographic Details
Main Author:	Goheen, Ellen Michaels
Corporate Author:	United States. Forest Service. Pacific Northwest Region
Other Authors:	Willhite, Elizabeth A.
Format:	Government Document Book
Language:	English
Published:	[Portland, Or.] : USDA Forest Service, Pacific Northwest Region ; [2006]
Series:	R6-NR-FID-PR ; 01-06.
Subjects:	Conifers > Diseases and pests > Oregon. Conifers > Diseases and pests > Washington (State) Forest insects > Oregon. Forest insects > Washington (State)

Evans: US Documents (Annex 5th floor)