Spruce budworms handbook
Subtitle: how to distinguish between old and new egg masses of the western spruce budworm
Contributors: United States. Cooperative State Research Service; Canada/United States Spruce Budworms Program
Series: Agriculture handbook -- no. 623; Agriculture handbook (United States. Dept. of Agriculture) -- no. 623
Publisher: U.S. Dept. of Agriculture, Forest Service, Cooperative State Research Service
Published: 1984
Place of publication: [Washington, D.C.?]
Language: eng
Subjects: Western spruce budworm
Other titles: How to distinguish between old and new egg masses of the western spruce budworm
Notes: "CANUSA, Canada United States Spruce Budworms Program"--P. 2

"May 1984"--P. 2

Bibliography: p. 7