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  1. Aerial surveys for Swiss needle cast in Western Oregon.

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    Author(s): A. Kanaskie; M. McWilliams; J. Prukop; D. Overhulser; K. Sprengel
    Date: 2002
    Source: Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. [Brochure].
    Publication Series: Brochures
    PDF: View PDF  (597.0 KB)

    Description

    In the last decade, Swiss needle cast (SNC), caused by the native fungus Phaeocryptopus gaeumannii, has severely damaged Douglas-fir in the Coast Range of western Oregon. The primary impact of the pathogen on Douglas-fir (the only susceptible tree species) is premature loss of foliage, which results in significant reduction in tree growth. Recent reduction in volume growth from SNC in western Oregon likely exceeds 100 million board feet per year.

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Kanaskie, A.; McWilliams, M.; Prukop, J.; Overhulser, D.; Sprengel, K. 2002. Aerial surveys for Swiss needle cast in Western Oregon. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. [Brochure].

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