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  1. Ground verification of aerial for Port-Orford-cedar root disease in Southwest Oregon.

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    Author(s): A. Kanaskie; M. McWilliams; D. Overhulser; J. Prukop; R. Christian; S. Malvitch
    Date: 2002
    Source: [Brochure]. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station
    Publication Series: Brochures
    PDF: View PDF  (401 KB)

    Description

    Port-Orford-cedar (POC) (Chamaecyparis lawsoniana) is limited in its natural range to southwest Oregon and northwest California. It is highly susceptible to the introduced root pathogen, Phytophthora lateralis, which causes a fatal root disease throughout most of its range. The disease is transmitted by movement of infested soil and water and is most common along stream courses and roadsides. Trees killed by the disease typically turn vivid reddish brown, which provides a good aerial signature.

    Publication Notes

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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.; Overhulser, D.; Prukop, J.; Christian, R.; Malvitch, S. 2002. Ground verification of aerial for Port-Orford-cedar root disease in Southwest Oregon. [Brochure]. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station

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