Canadian Forest Service Publications
Forest insect and disease conditions, Nelson District, 1974. 1974. Morris, E.V.; Monts, J.S. Environment Canada, Forestry Service, Pacific Forest Research Centre, Victoria, BC. Information Report BC-X-112. 16 p.
Issued by: Pacific Forestry Centre
Catalog ID: 1473
Availability: PDF (download)
The major insect problems in the District in 1974 were the mountain pine beetle and black army cutworm. The mountain pine beetle caused extensive tree mortality in lodgepole pine stands in the Elk Creek - White River area, along Blackwater Ridge near Donald, and Goathide Creek in the West Kettle River drainage. Black army cutworms defoliated Engelmann spruce seedlings on 7000 acres (2800 ha) at Blackwater Creek near Donald.
Hemlock looper and filament bearer infestations collapsed. Larch casebearer and larch budmoth populations were down, with light defoliation of western larch trees in the southern areas. Tent caterpillars stripped deciduous stands in the Golden area.
Sulphur dioxide fumes from the Sullivan Mountain Mine damaged the foliage of trees near Kimberley.