Canadian Forest Service Publications
Forest insect and disease conditions, Prince Rupert Forest Region, British Columbia, 1978. 1979. Doidge, D.F.; Koot, H.P. Fisheries and Environment Canada, Canadian Forest Service, Pacific Forest Research Centre, Victoria, BC. Information Report BC-X-194. 15 p.
Issued by: Pacific Forestry Centre
Catalog ID: 1863
Availability: PDF (download)
Spruce beetles killed trees over an estimated 16 000 ha. Counts of mountain pine beetle killed lodgepole pine doubled. Western balsam bark beetle continued to be a chronic problem in spruce-balsam stands. A hemlock sawfly defoliated western hemlock and alpine fir along the Skeena and Kispiox rivers.
A foliage disease caused severe browning of trembling aspen in the Houston area. "Winter drying" affected conifers in the Kitimat, Kalum and Nass valleys and lodgepole pine near Fawnie Mtn. Labrador tea rust affected 20-100% of the new foliage on Sitka spruce between Tlell and Masset.