Regional evaluation of B.t. for spruce budworm control.
Contributors: United States. Cooperative State Research Service.; Canada/United States Spruce Budworms Program.
Series: Agriculture information bulletin -- no. 458.; Spruce budworms handbook
Publisher: U.S. Dept. of Agriculture, Forest Service, Cooperative State Research Service
Published: 1983
Place of publication: [Washington, D.C.]
Language: eng
Subjects: Spruce budworm -- United States -- Biological control.
Notes: "CANUSA, Canada United States Spruce Budworms Program"--P. ii.

"November 1983"--P. ii.

Includes bibliographical reference.