Effectiveness of three systemic insecticides for Douglas-fir cone and seed insect control
By: Norman E. Johnson and Stanley W. Meso.
Contributors: Meso, Stanley.
Series: Weyerhaeuser forestry paper -- no. 10.
Publisher: Weyerhaeuser Forestry Research Center
Published: 1966
Place of publication: Centralia, Wash
Language: eng
Number of pages: 10
Subjects: Douglas fir -- Diseases and pests.; Douglas fir -- Seeds.; Systemic insecticides -- Research.
Notes: Bibliography: p. 10.