Notes and Observation: Balsam Woolly Aphid on Grand Fir
Abstract:The balsam woolly aphid is now well established on grand fir throughout the Coast Range of Oregon and Washington. A southward extension of the insect's distribution of over a hundred miles is reported. Grand fir mortality is slow and difficult to detect, but widespread. As yet, feasible chemical or biological control measures do not exist and if the spread continues, white fir in California may be threatened.
Document Type: Miscellaneous
Affiliations: College of Forestry, University of Washington, Seattle
Publication date: August 1, 1966
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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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