Canadian Forest Service Publications

Infection des cimes blessées artificiellement chez l'épinette noire dans le Parc des Laurentides, au Québec. 1972. Lachance, D.; Morin, L.A. Phytoprotection 53(1) : 34-41.

Year: 1972

Issued by: Laurentian Forestry Centre

Catalog ID: 15426

Language: French

Availability: PDF (request by e-mail)

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In this study the tops of 100 living black spruce trees were removed and the residual stems exposed to natural infection for up to three successive years. Sampling after each of the three years showed little variation in the incidence of infected trees, but marked differences in the kind, frequency and number of the associated decay fungi. For example, Haematostereum sanguinolentum was present in 55.5% of the trees sampled after one year and only in 18.7% of those sampled after three years. Similarly, there were 40.7% of the trees with more than one decay fungus after one year of experimentation and only 6.3% after three years. There was a direct correlation between the number of trees with decay and the size of exposed stem sections. Fomes pini, a fungus responsible for a large part of the decay associated with such infection courts on black spruce, was not recovered from any of the trees sampled during the three years.