Author
Canada/United States Spruce Budworms Program
2
Canadian Forest Service. Science Branch
1
Canadian Forestry Service
1
Crawford, Hewlette S., 1931-
1
Forest Pest Management Institute (Canada)
1
Hildebrand, M. J
1
Jennings, Daniel T.
1
Juneau, André, 1943-
1
Laurentian Forest Research Centre
1
Moore, A
1
Morris, Oswald N.
1
Northeastern Forest Experiment Station (Radnor, Pa.)
1
Nova Scotia Department of Lands and Forests
1
Smirnoff, W. A.
1
Symposium: Microbial Control of Spruce Budworms and Gypsy Moths Windsor Locks, Conn.)
1
United States. Cooperative State Research Service
1