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Article: Sudden oak death.(PEST OF THE MONTH)
- Article from:
- Arbor Age
- Article date:
- August 1, 2007
CopyrightCOPYRIGHT 2007 Adams Business Media. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Sudden oak death, Phytophthora ramorum, or Phytophthora canker disease, is a fungus first identified in 1993 in Germany and the Netherlands on ornamental rhododendrons. First reported in California in 1995, it has killed tens of thousands of trees in California (primarily different species of oaks), but is now spreading to other areas of the country through the transportation of infected hosts.
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The name sudden oak death is used because of the rapid color change of leaves from green to brown. Phytophthora attacks roots in poorly drained ...