Armillaria ostoyae - Wikipedia
Armillaria ostoyae (synonym Armillaria solidipes) is a species of fungus , pathogenic to trees, in the family Physalacriaceae. In the western United States, it is the most common variant of the group of species under the name Armillaria mellea .
DecAID - Decayed Wood Advisor
Armillaria ostoyae creates short-term snags of any size and all sizes of down wood, by killing and decaying the root system and butts of host trees. Canopy gaps resulting from armillaria root disease expand slowly, resulting in a more diverse stand structure and at times a more diverse plant species composition, as resistant or non-host trees ...
Armillaria Root Disease - US Forest Service
Armillaria ostoyae creates short-term snags of any size and all sizes of down wood, by killing and decaying the root system and butts of host trees. Canopy gaps resulting from armillaria root disease expand slowly, resulting in a more diverse stand structure and at times a more diverse plant species composition, as resistant or non-host trees ...
Armillaria root rot - NRCan
Armillaria root disease is caused by several closely related species of Armillaria. Armillaria ostoyae is the most prevalent and destructive of the Armillaria spp.. The causal fungus of Armillaria root rot can remain alive for many years in rotting wood on the ground. Some root disease centers have been estimated to be more than 400 years in age.
Symptom development and mortality rates caused by Armillaria ostoyae …
Feb 15, 2021 · ostoyae-caused mortality of a particular host species is a direct measure of its resistance and ability to survive in the presence of A. ostoyae inoculum. On western redcedar, A. ostoyae infections resulted in callused lesions at the root collar
Using DNA-based techniques for the identification of Armillaria spp., we identified three genetically-distinct species groups that comprised the ca. 450+ Armillaria samples. The association of Armillaria species groups with habitat is …
pine species. Larches, most cedar species, whitebark and limber pines, cypresses, yews, sequoias, and redwoods are seldom damaged by Armillaria root disease. In some areas of interior western North America, decades of fire suppression have allowed highly susceptible species, such as Douglas-fir and true firs, to dominate
Epidemiology of Armillaria root disease in Douglas‐fir plantations …
Dec 11, 2009 · Results are presented from several studies on the epidemiology of Armillaria ostoyae in Douglas-fir plantations in the interior cedar-hemlock (ICH) biogeoclimatic zone of British Columbia....
Epidemiology of Armillaria root disease in Douglas‐fir plantations …
Feb 1, 2011 · Results are presented from several studies on the epidemiology of Armillaria ostoyae in Douglas-fir plantations in the interior cedar-hemlock (ICH) biogeoclimatic zone of British Columbia. Two plantations were monitored for mortality by A. ostoyae and other agents for 35 years after establishment.
high levels of Armillaria root disease present based on symptoms (i.e. foliar chlorosis, thinning crowns, reduced growth of current year's leader and resinosus on conifers) and signs (sub-cortical mycelial