Management guidelines for increasing populations of birds that feed on western spruce budworm.
Contributors: United States. Cooperative State Research Service.; Canada/United States Spruce Budworms Program.
Series: Spruce budworms handbook; Agriculture handbook -- no. 653.; Agriculture handbook (United States. Dept. of Agriculture) -- no. 653 [1986].
Publisher: U.S. Dept. of Agriculture, Forest Service, Cooperative State Research Service
Published: 1986
Place of publication: [Washington, D.C.?]
Language: eng
Number of pages: 19
Subjects: Spruce budworm -- Control -- United States.; Western spruce budworm -- Control -- United States.; Predation (Biology)
Notes: "CANUSA, Canada United States Spruce Budworms Program"--T.p. verso.

Shipping list no.: 86-867-P.

"August 1986"--T.p. verso.

Bibliography: p. 13-16.