Canadian Forest Service Publications
Sawfly defoliation of cottonwood in the Fraser Valley. 1994. Turnquist, R. Natural Resources Canada, Canadian Forest Service, Pacific Forestry Centre, Victoria, BC. FIDS Pest Report 94-04.
Available from: Pacific Forestry Centre
Catalog ID: 3504
Series: FIDS Report (CFS)
CFS Availability: PDF (download)
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