Laminated root rot
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Laminated root rot a guide for reducing and preventing losses in Oregon and Washington forests. by James S. Hadfield

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Published by U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Region in [Portland, Or.] .
Written in English

Subjects:

  • Root rots.,
  • Trees -- Diseases and pests -- Washington (State),
  • Trees -- Diseases and pests -- Oregon.

Book details:

Edition Notes

ContributionsUnited States. Forest Service. Pacific Northwest Region.
The Physical Object
Pagination13 p. :
Number of Pages13
ID Numbers
Open LibraryOL17669898M

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Laminated Root Rot Coniferiporia sulphurascens Key Wildlife Value: Laminated root rot creates short-term snags of any size and all sizes of down wood, by killing or decaying the root system and butts of host trees. It can create trees with hollow butts, which may continue to provide habitat when they fall. Laminated Root Rot. Phellinus weirii (Murrill) R. L. Gilbertson (= Poria weirii (Murill) Murill) (=Inonotus weirii (Murrill) Kotl.& Pouzar. Basidiomycotina, Aphyllophorales, Polyporaceae. Hosts: Two forms of disease caused by Phellinus weirii are recognized, the Douglas-fir and cedar forms, based on cultural characteristics, symptomology, and host preference. root disease is a worldwide problem and occurs on hardwoods and softwoods alike, although different species occur in different regions and on different hosts. Hetero-basidion root and butt rot likewise occurs worldwide, mainly on members of the pine fam-ily (Pinaceae) but also on some hardwoods. Laminated root rot caused by P. sulphurascensCited by: 4. Laminated root rot poses a major threat to its most important host, second-growth Douglas-fir. The disease causes root decay, which can cause significant growth reduction, and makes trees susceptible to blow down and stem breakage (the latter is rare in coastal trees). Other information.

COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus. Laminated root rot is a typical root and butt rot. It leads to expanding centers of mortality. Small trees die standing, and bigger ones fall over. It is restricted in distribution to the Pacific Northwest and Inland Empire area, but it occurs on a variety of important conifers there and causes very significant losses (60 million cu. ft./yr. in. Laminated root rot: A guide for reducing and preventing losses in Oregon and Washington forests Unknown Binding – January 1, by James S Hadfield (Author) See all formats and editions Hide other formats and editions. The Amazon Book Review Author interviews, book Author: James S Hadfield. Laminated root rot. Laminated root rot is the most damaging root disease in Oregon from the stand-point of wood fiber produc-tion. Found in western and eastern Oregon, the disease is caused by the fungus Phellinus weirii. It affects all conifer species to some degree but is most damaging to Douglas-fir, grand and white fir, and mountainFile Size: 1MB.

  Laminated root rot causes trees to fall, which endangers roads, homes, campgrounds and people. The presence of the disease has led to tree removals and use changes recently at Lake Wenatchee, Millersylvania, Kopachuck and Lake Easton state parks. Resources are listed alphabetically by topic, including websites, publications, and videos, on over 40 different topics. Tip: use your browser’s “find” or “search” function to search for a keyword of interest. Three Key Resources: Washington State Consulting Forester and Silvicultural contractor Directory. Phellinus weirii is a plant pathogen causing laminated root rot in certain conifers, typically Douglas-fir and western redcedar. It is widespread in the Douglas-fir growing regions of British Columbia, Washington and Oregon.. Overview. Symptoms of fungal infection are readily recognized when timber is cut because a brown stain will appear on the butt : Hymenochaetaceae. Laminated root rot should be considered a “disease of the site”. That is, established mycelia of this fungus are essentially permanent, so the best course is to minimize losses by managing tree species that can be. expected to have better survival on infested sites. Laminated root rot is estimated to infest at least , acres inFile Size: KB.