Canadian Forest Service Publications
The current spruce budworm situation in northeastern Ontario. 1970. Sippell, W.L.; Harnden, A.A. Government of Canada, Department of Fisheries and Forestry, Ontario Region, Sault Ste. Marie, ON. Information Report O-X-135. 13 p.
Issued by: Great Lakes Forestry Centre
Catalog ID: 8835
Availability: PDF (download)