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): John T. Dobbs; Mee-Sook Kim; Nicklos S. Dudley; Tyler C. Jones; R. Kasten Dumroese; Phil G. Cannon; Robert D. Hauff; Ned B. Klopfenstein; Jane E. Stewart
    Date: 2019
    Source: In: Cleaver, C.; Palacious, P., compilers. Proceedings of the 65th annual Western International Forest Disease Work Conference; 2-6 October 2017; Parksville, BC, Canada. WIFDWC. p. 105-108.
    Publication Series: Scientific Journal (JRNL)
    Station: Pacific Northwest Research Station
    PDF: Download Publication  (524.0 KB)

    Description

    Koa (Acacia koa Gray) is an endemic, keystone species in Hawai’i’s forests. Koa is valuable economically (contributed $30 million to Hawai’i’s forestry industry in 2001), ecologically (habitat for many endangered birds and insects), and culturally (koa is the main wood used for making Hawaiian canoes). Mortality of koa trees due to koa wilt (caused by Fusarium oxysporum f. sp. koae; Foxy-koae) has been increasing, primarily in the low- to mid-elevation forests (Gardner 1980). Fusarium oxysporum (Foxy) is an important vascular wilt pathogen of many plant species worldwide (Leslie 2006). Foxy is highly variable and can be pathogenic or saprophytic without discernable, morphological differences. The origin of Foxy-koae strains that are virulent to koa in Hawaii is currently unknown.

    Publication Notes

    • You may send email to rmrspubrequest@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

    Dobbs, John T.; Kim, Mee-Sook; Dudley, Nicklos S.; Jones, Tyler C.; Dumroese, R. Kasten; Cannon, Phil G.; Hauff, Robert D.; Klopfenstein, Ned B.; Stewart, Jane E. 2019. Development of tools for early detection, monitoring and management of the koa wilt pathogen (Fusarium oxysporum f. sp. koae) in Hawaiíi. In: Cleaver, C.; Palacious, P., compilers. Proceedings of the 65th annual Western International Forest Disease Work Conference; 2-6 October 2017; Parksville, BC, Canada. WIFDWC. p. 105-108.

    Keywords

    koa, Acacia koa Gray, koa wilt pathogen, Fusarium oxysporum, Foxy-koae, detection, monitoring, management

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/58912