Notes: Root Diseases Cause Severe Mortality in White and Grand Fir Stands of the Pacific Northwest
Abstract:Forteen stands totaling 2,750 ha and comprised primarily of white or grand fir were examined for mortality caused by three root pathogens: Phellinus weirii, Armillaria mellea, and Fomes annosus. Trees judged to have been dead less than 20 years were tallied. These amounted to 4-55 percent of the trees, 8-39 percent of the basal area, and 7-33 percent of the volume. These data indicate that root diseases can be serious problems in white and grand fir stands and should be a major concern of foresters and scientists managing and studying these species. Forest Sci. 30:138-142.
Document Type: Miscellaneous
Affiliations: Plant Pathologists, Forest Pest Management, USDA Forest Service, Portland, OR 97208
Publication date: 1984-03-01
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- Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
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