Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Franziska Rupp; Ebba K. Peterson; Joyce Eberhart; Jennifer L. Parke
    Date: 2017
    Source: Proceedings of the sudden oak death sixth science symposium. Gen. Tech. Rep. GTR-PSW-255. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station: 85-86.
    Publication Series: General Technical Report (GTR)
    Station: Pacific Southwest Research Station
    PDF: Download Publication  (167.0 KB)

    Description

    Phytophthora lateralis causes root rot of Port-Orford cedar (Chamaecyparis lawsoniana; POC) in native forests of northwest California and southwest Oregon and in landscape plantings of horticultural Chamaecyparis cultivars in the western US and Europe. In spring 2015, following observations of mortality amongst plant groups in two horticultural nurseries in Oregon, P. lateralis was isolated from the roots of two additional conifer species: Microbiota decussata and Juniperus communis. Species identification was confirmed by sequencing the ITS region using ITS4 and ITS6 primers. To substantiate the extended host range of P. lateralis, we conducted Koch´s Postulates with the recovered nursery isolates on potted Juniperus and Microbiota plants.

    Publication Notes

    • You may send email to psw_communications@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Rupp, Franziska; Peterson, Ebba K.; Eberhart, Joyce; Parke, Jennifer L. 2017. Host range determination and fungicide resistance assessment of Phytophthora lateralis isolates from horticultural nurseries in Oregon. In: Frankel, Susan J.; Harrell, Katharine M., tech. coords. Proceedings of the sudden oak death sixth science symposium. Gen. Tech. Rep. GTR-PSW-255. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station: 85-86.

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/54056