Canadian Forest Service Publications
A guide to common insect pests and diseases in spruce seed orchards in British Columbia. 1982. Ruth, D.S.; Miller, G.E.; Sutherland, J.R. Environment Canada, Canadian Forestry Service, Pacific Forest Research Centre, Victoria, BC. Information Report BC-X-231.
Available from: Pacific Forestry Centre
Catalog ID: 2184
CFS Availability: PDF (download)
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