Spruce budworms handbook
Subtitle: rating spruce-fir stands for spruce budworm damage in eastern North America
Contributors: United States. Cooperative State Research Service; Canada/United States Spruce Budworms Program
Series: Agriculture handbook -- no. 636; Agriculture handbook (United States. Dept. of Agriculture) -- no. 636
Publisher: U.S. Dept. of Agriculture, Forest Service, Cooperative State Research Service
Published: 1985
Place of publication: [Washington, D.C.?]
Language: eng
Number of pages: 22
Subjects: Spruce -- Diseases and pests -- United States; Fir -- Diseases and pests -- United States; Spruce budworm -- United States
Other titles: Rating spruce-fir stands for spruce budworm damage in eastern North America
Notes: "CANUSA, Canada/United States Spruce Budworms Program"--P. 2

"February 1985"--P. 2

Bibliography: p. 21-22