Root diseases in Oregon and Washington conifers
By: James S. Hadfield ... [et al.].
Contributors: Hadfield, James S.; United States. Forest Service. Pacific Northwest Region.
Publisher: USDA Forest Service, Pacific Northwest Region Forest Pest Management
Published: 1986
Place of publication: Portland, Or
Language: eng
Number of pages: 27
Subjects: Roots (Botany) -- Diseases and pests -- Oregon.; Root rots.; Conifers -- Diseases and pests -- Washington (State); Conifers -- Diseases and pests -- Oregon.
Notes: Shipping list no.: 86-1002-P.

"R6-FPM-250-86"-P. 1.

Includes bibliographies.