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): N. R. Fonseca; L. M. S. Guimaraes; R. P. Pires; Ned Klopfenstein; M. -S. Kim; A. C. Alfenas
    Date: 2016
    Source: In: Ramsey, Amy; Palacios, Patsy, comps. Proceedings of the 63rd Annual Western International Forest Disease Work Conference; September 21-25 , 2015; Newport, OR. Olympia, WA: Washington Department of Natural Resources; Logan, UT: Utah State University, Quinney College of Natural Resources. p. 113-115.
    Publication Series: Paper (invited, offered, keynote)
    Station: Rocky Mountain Research Station
    PDF: View PDF  (1.0 MB)

    Description

    Powdery mildew diseases are caused by biotrophic fungi in the Erysiphales. These fungal pathogens are easily observed by the whitish powdery appearance caused by their colonization of the aerial surfaces on living plants (Stadnik & Rivera, 2001) (Figure 1). In Brazil, powdery mildew of Eucalyptus spp is increasing under the current nursery production systems, and the causal agents are generally recognized as the anamorphic stage, such as Oidium spp or Oidium eucalypti Rostrup. (Mucci et al., 1980). Unfortunately, pathogen identification is hampered by the absence of sexual reproductive structures in Eucalyptus powdery mildew pathogens of Brazil (Bedendo, 2011). Accurate identification of these powdery mildew fungi is essential for developing disease management practices, such as resistance-breeding and screening programs, which are dependent on the pathogen species or race. In addition, accurate identification of powdery mildew pathogens will enhance chemical control methods, because different species may respond differently to various fungicides that have specific modes of action.

    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

    Fonseca, N. R.; Guimaraes, L. M. S.; Pires, R. P.; Klopfenstein, N. B.; Kim, M. -S.; Alfenas, A. C. 2016. Ongoing molecular studies of Eucalyptus powdery mildew in Brazil. In: Ramsey, Amy; Palacios, Patsy, comps. Proceedings of the 63rd Annual Western International Forest Disease Work Conference; September 21-25, 2015; Newport, OR. Olympia, WA: Washington Department of Natural Resources; Logan, UT: Utah State University, Quinney College of Natural Resources. p. 113-115.

    Keywords

    forest disease, Eucalyptus, powdery mildew, biotrophic fungi

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/52096