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The information accessed from this screen is based on the publication: Hunt R. S. and Wood C. S. 1978. Common Needle Diseases of Spruce in British Columbia. Forestry Canada, Forest Insect and Disease Survey, Forest Pest Leaflet No. 46 4p.
Needle and shoot blights are caused by a related group of fungi (Ascomycetes), which cause more damage to coniferous foliage in North America than any other group of fungi. Severe infection can result in significant growth reduction. The blights are widely distributed throughout the range of their hosts in British Columbia.
For more information, see the True Fir Blights Forest Pest Leaflet in the Canadian Forest Service bookstore.