Canadian Forest Service Publications
Impact du chancre hypoxylonien sur le tremble de 2 unités de gestion du Québec. 1982. Archambault, L. The Forestry Chronicle 58 : 139-142.
Issued by: Laurentian Forestry Centre
Catalog ID: 14252
CFS Availability: PDF (request by e-mail)
A survey was conducted in the management units of Portneuf and Grand-Portage, Québec to determine the impact of Hypoxylon canker (Hypoxylon mammatum (Wahl.)) on aspen (Populus tremuloides Michx.). In 78 forest stands (2340 stems) of Portneuf, sampling revealed 2.6% of stems (2.0% of volume) affected or dead. In the 82 Grand-Portage stands (2460 stems) 4.1% of stems (2.8% of volume) were affected or dead. Other analyses were carried out on the frequency of the disease in relation to stand characteristics.
Although annual losses which represent only a sixth of this evaluation are relatively low, we must emphasize that they are cumulative over the whole life of the stands. Moreover, the importance of the impact could increase if aspen was widely used.