Rough bark of alder
- Latin name: Didymosphaeria oregonensis Goodd.
- French name: Chancre didymosphérien de l'aulne
- Division: Ascomycota
- Class: Pleosporales
Description
Micro-habitat(s)
Trunk
Distribution
Western Canada
Damage, symptoms and biology
The presence of this fungus appears to have little effect on the health or productivity of alder trees. Young trees are occasionally deformed and/or stunted when numerous cankers are present.
Other information
The infection of alder by Didymosphaeria oregonensis is thought to be restricted to young trees, and the cankers cease to grow after the bark thickens with age. The rough bark remains, however, on the trunks of mature trees.
Canadian Forest Service Publications
Information on host(s)
Main host(s)
Alders, mountain alder, red alder, Sitka alder, speckled alder
Photos
Canker caused by Didymosphaeria oregonensis on red alder Eric Allen