Spruce budworm defoliation in Minnesota, 1954-1977
By: Glen Erickson and Arthur Hastings
Contributors: Hastings, Arthur R., joint author; North Central Forest Experiment Station (Saint Paul, Minn.); United States. Forest Service
Series: USDA Forest Service research note NC ; 243
Publisher: Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
Published: 1978
Place of publication: St. Paul, Minn
Language: eng
Subjects: Defoliation; Spruce budworm -- Minnesota
Notes: Bibliography: p. 4