Distribution of Sitka spruce weevil eggs on leaders of open grown Sitka spruce in southwest Washington
By: Norman E. Johnson.
Series: Weyerhaeuser forestry paper -- no. 3.
Publisher: Weyerhaeuser Forestry Research Center
Published: 1965
Place of publication: Centralia, Wash
Language: eng
Number of pages: 11
Subjects: Sitka spruce -- Diseases and pests -- Washington (State); White pine weevil -- Washington (State); White pine weevil -- Eggs -- Washington (State)