Nonspecific root decline in Douglas-fir trees due to urban soils syndrome

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Citeable URL: https://ir.library.oregonstate.edu/concern/defaults/w6634861d

Descriptions

Attribute Name	Values
Creator	Torres, Peter
Abstract	Urban soils syndrome, the deterioration of soil at developed sites, acts as a primary disease agent, causing root system necrosis by physical damage to root tissue. This condition predisposes Douglas-fir trees to attack by fungal pathogens, including Armillaria ostoyae, brown rotters like Phaeolus schweinitzii, and a variety of minor pathogens. When colonized by minor pathogens, or when damaged by edaphic factors alone, the resulting diseased condition is a non-specific root decline. This paper examines the soil conditions that contribute to root disorders. The role of minor pathogens is explored. Nonspecific root decline is difficult to detect, for many affected trees appear nonsymptomatic until they uproot in a windstorm. Sampling techniques are discussed, and a hazard rating system is proposed to help with detection.
Resource Type	Research Paper
Date Available	2012-08-07T20:45:49+00:00
Date Issued	1997-06-16
Urheberrechts-Erklärung	Copyright Not Evaluated
Publisher	Oregon State University
Peer Reviewed	No
Language	English [eng]
Digitization Specifications	File scanned at 300 ppi (Monochrome) using Capture Perfect 3.0.82 on a Canon DR-9080C in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
Replaces	http://hdl.handle.net/1957/31943

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