A Canker of Douglas Fir Associated with Phomopsis Lokoyae

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A canker disease of young Douglas firs became epidemic in the northern Coast Ranges of California during 1930 because of a combination of climatic conditions unfavorable to the host and favorable to the disease. The epidemic had snbsided by 1931. It will recur again when similar conditions arise. The disease resembles a canker disease of Douglas firs in Europe, but it is apparently indigenous, or at least behaving as an indigenous disease. The damage resulting was negligible, most of the dying of Douglas fir and other species resulting from the protracted drought of 1929.

Document Type: Journal Article

Affiliations: Professor of Forest Pathology, Yale University and Principal Pathologist, U. S. Bureau of Plant Industry

Publication date: October 1, 1933

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  • The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.
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