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Creator:: William, R. D., Al-Khatib, Kassim, Oregon State University. Extension Service, Washington State University. Cooperative Extension, University of Idaho. Cooperative Extension System, and United States. Department of Agriculture
Abstract:: Controlling weeds that compete with Christmas trees is essential to producing quality trees. Weeds have several negative effects
Resource Type:: Technical Report
Full Text:: to the Pacific Northwest Weed Control Hand- book, published and revised annually by the Extension

Creator:: Proebsting, William M., Landgren, Chal G., Oregon State University. Extension Service, Washington State University. Cooperative Extension, University of Idaho. Cooperative Extension Service, United States. Department of Agriculture, and Pacific Northwest Cooperative Extension
Abstract:: Over the past 30 years, Christmas trees have become an intensively managed horticultural crop. During this period, higher standards and increasing competition have given the edge to growers who are progressive and highly motivated. Whether you’re a large or small producer, your trees must have consistently high quality for successful...
Resource Type:: Technical Report
Full Text:: Douglas-fir Christmas Trees -fr : _ OREGON PNW 227 A Pacific Northwest Extension Publication Oregon

Creator:: Oregon State University. Extension Service, Washington State University. Cooperative Extension, University of Idaho. Cooperative Extension Service, Burrill, L. C., and United States. Department of Agriculture
Abstract:: Revised August 1994. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Other
Full Text:: visible. Herbicides that may be used for tansy ragwort control are listed in the Pacific Northwest Weed

Creator:: Oregon State University. Extension Service, Washington State University. Extension, University of Idaho. Extension, Mallory-Smith, C., Burrill, L. C., Callihan, R. H. (Robert Harold), 1933-, Parker, R., Radtke, H., Pacific Northwest Cooperative Extension, and Coombs, Eric M.
Abstract:: Revised July 1997. Reprinted January 2001. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: tansy ragwort control are listed in the current Pacific Northwest Weed Control Hand- book and other

ScholarsArchive@OSU