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Abstract
Entoleuca mammata (Wahlenb.) J.D. Rogers & Y.M. Ju (syn.
Hypoxylon mammatum (Wahlenb.) P. Karst.) causes the most damaging canker disease of quaking aspen (
Populus tremuloides Michx.) - Hypoxylon canker - in many areas of North America. A study by Anderson (1964) in the Lake States (Michigan, Minnesota and Wisconsin) estimated that Hypoxylon canker killed 1-2% of the aspen volume each year, which is equivalent to 31% of the net annual growth. The estimated yearly volume loss in Ontario (Canada) was 2 million m
3 (Pitt et al., 2001). Bigtooth aspen (
P. grandidentata Michx.) is occasionally infected but the disease is not nearly as damaging to this species as it is to quaking aspen.
Citation
Ostry, Michael E. 2013. Hypoxylon canker. In: Gonthier P.; Nicolotti, G., eds. Infectious forest diseases. Wallingfork, UK: CAB International: 407-419.