Spruce budworms handbook : rating spruce-fir stands for spruce budworm damage in eastern North America.

Bibliographic Details
Corporate Authors:	United States. Cooperative State Research Service, Canada/United States Spruce Budworms Program
Format:	Government Document Book
Language:	English
Published:	[Washington, D.C.?] : U.S. Dept. of Agriculture, Forest Service, Cooperative State Research Service, 1985.
Series:	Agriculture handbook (United States. Department of Agriculture) ; no. 636.
Subjects:	Spruce > Diseases and pests > United States. Fir > Diseases and pests > United States. Spruce budworm > United States.

Description
Item Description:	"CANUSA, Canada/United States Spruce Budworms Program"--P. 2. "February 1985"--P. 2.
Physical Description:	22 pages : illustrations, 1 map ; 22 cm.
Bibliography:	Bibliography: pages 21-22.