Coniferiporia weirii
| Coniferiporia weirii | |
|---|---|
| File:Phellinus weirii.jpg | |
| Fruit bodies | |
| Scientific classification Edit this classification | |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Hymenochaetales |
| Family: | Hymenochaetaceae |
| Genus: | Coniferiporia |
| Species: | C. weirii
|
| Binomial name | |
| Coniferiporia weirii (Murrill) L.W. Zhou & Y.C. Dai (2016)
| |
| Synonyms[1] | |
Coniferiporia weirii is a species of fungus. It is a plant pathogen that causes laminated root rot in certain conifers, typically Douglas-fir and western redcedar.[2] It is widespread in the Douglas-fir growing regions of British Columbia, Washington and Oregon.[3]
Description
[edit | edit source]Coniferiporia weirii root rot is recognized first by the symptoms it induces in its hosts. Reduced terminal growth is usually the first symptom to appear, followed by yellowing (chlorosis) and thinning of crowns. Reduced growth rate is an attribute of tree infection.[4] Particular attention is invited to the growth ring patterns visible in the images below.
Commercial losses
[edit | edit source]Losses due to the fungus are estimated at 4.4 million m3 (157 million ft3) of timber in the Northwestern United States and in British Columbia.[5]
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Moderately advanced infection
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Close up of infection at Apiary, Oregon
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Hollow log at stump level---An extreme case of infection
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View of long butt showing reduced rot a few feet up from the stump
References
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