Canadian Forest Service Publications
Forest insect and disease conditions, Prince Rupert Forest District, British Columbia, 1977. 1978. Doidge, D.F.; Koot, H.P. Fisheries and Environment Canada, Canadian Forest Service, Pacific Forest Research Centre, Victoria, BC. Information Report BC-X-174. 11 p.
Issued by: Pacific Forestry Centre
Catalog ID: 1861
Availability: PDF (download)
Spruce beetle infested an estimated 2000 ha in the Smithers Landing area, and mountain pine beetle showed the first indications of declining since 1969. The western balsam bark beetle complex continued to kill alpine fir, especially in McKendrick Pass and Telkwa River areas. The pine sawfly again defoliated shore pine on islands near Prince Rupert, and spruce aphid caused discoloration and needle drop of shoreline Sitka spruce on the Queen Charlotte Islands and on the adjacent mainland in the Prince Rupert area.
A foliage disease caused severe browning of poplars in the Hazelton area; sweet-fern blister rust was introduced via a provenance trial at Chist Creek, and a bud necrosis continued to be a major problem in spruce plantations.