Mortality of spruce and fir in Maine in 1976-78 due to the spruce budworm outbreak
By: Donald W. Seegrist and Stanford L. Arner.
Contributors: Arner, Stanford L.; Northeastern Forest Experiment Station (Radnor, Pa.)
Series: Research paper NE -- 491.
Publisher: U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station
Published: 1982
Place of publication: Broomall, Pa
Language: eng
Subjects: Spruce budworm -- Maine.; Spruce -- Maine.; Balsam fir.
Notes: Caption title.

"Canusa, Canada, United States Spruce Budworms Program."

"3 March 1981"--T.p. verso.

Bibliography: p. 3.