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    Author(s): Kenelm W. Russell
    Date: 1989
    Source: In: Otrosina, William J.; Scharpf, Robert F., technical coordinators. 1989. Proceedings of the symposium on research and management of annosus root disease (<i>Heterobasidion annosum</i>) in western North America; April 18-21, 1989; Monterey, CA. Gen. Tech. Rep. PSW-GTR-116. Berkeley, CA: Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture; p. 153-158
    Publication Series: General Technical Report (GTR)
    Station: Pacific Southwest Research Station
    PDF: View PDF  (111 KB)

    Description

    Actual loss from annosus root disease infections in hemlock stands is difficult to determine. As political trends move toward protecting old-growth timber, greater market demand will be placed on second growth western hemlock. These stands must be kept healthy for maximum productivity. The paper compares the following 70-year rotation timber management scenarios: The first has a single juvenile spacing entry and low infection. The second has early spacing plus a commercial thinning with considerable crop tree wounding and high infection. Operational guidelines are presented for management of coastal western hemlock to minimize losses due to annosus root disease.

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    Citation

    Russell, Kenelm W. 1989. Management Strategies for Annosus Root Disease in Pacific Northwest Coastal Western Hemlock. In: Otrosina, William J.; Scharpf, Robert F., technical coordinators. 1989. Proceedings of the symposium on research and management of annosus root disease (Heterobasidion annosum) in western North America; April 18-21, 1989; Monterey, CA. Gen. Tech. Rep. PSW-GTR-116. Berkeley, CA: Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture; p. 153-158

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