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MX934, Sudden Oak Death

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Sudden Oak Death

Editor's note
The following abstract describes a publication that is only available for purchase. A link to ordering information is on this page.

The causal agent of sudden oak death (SOD, also known as Phytophthora canker disease), Phytophthora ramorum, was first identified in 1993 in Germany and the Netherlands on ornamental rhododendrons. P. ramorum was isolated in June 2000 from dying trees in California. Since its discovery in North America, P. ramorum has been confirmed in forests in California and Oregon and in nurseries in California, Oregon, Washington, and British Columbia.

SOD is not involved in the oak decline event that is currently being observed in Arkansas and Missouri. To date, no positive SOD samples have been confirmed in Missouri.

Foliar lesions Foliar lesions on Rhododendron vaseyi infected by P. ramorum.

Keywords

  • Ambrosia beetles
  • Arrowwood
  • Bark beetles
  • Bark cankers
  • Bay laurel
  • Bigleaf maple
  • Blue oak
  • California black oak
  • California buckeye
  • California hazelnut
  • Camellia spp.
  • Canyon live oak
  • Cascara
  • Coast live oak
  • Coast redwood
  • Coffeeberry
  • Douglas fir
  • Foliar blights
  • Grand fir
  • Honeysuckle
  • Lilac
  • Madrone
  • Manzanita
  • Mountain laurel
  • Northern red oak
  • Oregon myrtle
  • Oregon white oak
  • Ornamental rhododendrons
  • Petiole lesions
  • Phytophthora canker disease
  • Phytophthora ramorum
  • Pieries spp.
  • Pin oak
  • Poison oak
  • Rhododendron spp.
  • Sapwood rotting fungus
  • Shreve’s oak
  • SOD
  • Stem lesions
  • Sudden Oak Death
  • Tanoak
  • Toyon
  • Vaccinium spp.
  • Valley oak
  • Victorian box
  • Western Starflower

Pages

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MX934, new April 2004


MX934 Sudden Oak Death | University of Missouri Extension