Effect of western spruce budworm on douglas-fir cone production in western Montana
By: Allen B. Chrisman, George M. Blake, Raymond C. Shearer
Contributors: Blake, George M. 1932-; Shearer, Raymond C; Intermountain Forest and Range Experiment Station (Ogden, Utah); Canada/United States Spruce Budworms Program
Series: Research paper INT -- 308
Publisher: U.S. Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station
Published: 1983
Place of publication: [Ogden, Utah?]
Language: eng
Subjects: Western spruce budworm -- Montana; Douglas fir
Notes: "Canusa, Canada United States Spruce Budworms Program."

"March 1983."

Bibliography: p. 7