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

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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)

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