Canadian Forest Service Publications

Fomes annosus stump colonization and fungus development in the California mixed-conifer type. 1976. Hunt, R.S.; Cobb, F.W.; Parmeter, J.R. Canadian Journal of Forest Research 6(2): 159-165.

Year: 1976

Issued by: Pacific Forestry Centre

Catalog ID: 1675

Language: English

Availability: Order paper copy (free)

Available from the Journal's Web site.
DOI: 10.1139/x76-020

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The pattern and rate of colonization of ponderosa pine (Pinus ponderosa Laws.) stumps and stump roots by Fomes annosus (Fr.) Karsten were determined by sampling inoculated stumps periodically. Colonization occurred in the sapwood and wood-bark interface. Downward growth was fastest in the wood-bark interface and large stump roots were completely colonized in less than 1.5 years. Comparisons were made among colonization patterns and rates in ponderosa pine, sugar pine (P. lambertiana Dougl.) and Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stumps. Conidiophores were observed only during the early periods of bark loosening and were produced in 'tubes' and beetle galleries of inoculated and non-inoculated stumps. Mycelial plaques formed during the later stages of bark loosening in both inoculated and non-inoculated stumps. Basidiocarps developed on inoculated stumps within 1.5 years and on older non-inoculated stumps.