PEST ALERT: Sudden Oak Death
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.
Download and read the Sudden Oak Death fact sheet produced by the North Central Region Integrated Pest Management Center (Adobe Acrobat PDF, 259 kb).
Alerta Nacional de Plagas: Muerte Súbita del Roble por (Adobe Acrobat PDF, 440 kb)
USDA Phytophthora ramorum Educate to Detect (PRED) Program
Examples of existing state Phythophthora ramorum detection plans for homeowner plants:
Washington State University's web site includes a list of 5 triage questions for master gardeners to ask clientel with suspect plants in its SOD pdf file (Adobe Acrobat PDF, 268 KB).
The University of Maryland Sudden Oak Death web site includes a sample submission plan, as well as a kit that can be ordered from the Maryland Department of Agriculture.
Oak Mortality Task Force Master Gardener Simplified Question Key 2004 (Adobe Acrobat PDF, 76 KB) has a list of 14 questions for triage of suspect plants.
Illinois Sudden Oak Death/P. ramorum Blight Detection and Response Plan (March 2005) (Adobe PDF, 480 kb)
- Sudden Oak Death Nursery Training in Spanish
- California Oak Mortality Task Force
- Illinois Phytophthora ramorum website
- USDA Forest Service List of Funded Projects from the Pacific Southwest Research Station (Microsoft Word, 32 kb)
- Current and Continuing Sudden Oak Death Projects from the Pacific Southwest Research Station (Microsoft Word, 36 kb)
- Sudden Oak Death Purdue University
- Plant Pathlogy Lab State of Idaho Agriculture
- Brochure from the Georgia Forestry Commission (Adobe PDF, 1.2 MB)
- Click here to listen to an audio recording of the teleconference.
- Florida Response and Education Programs: The Southern Plant Diagnostic Network and Florida Department of Agriculture and Consumer Services
- View a video conference from Washington State University regarding Sudden Oak Death.
- General and specific information is available from the California Oak Mortality Task Force including a Master Gardener Training Manual and Best Management Practices Manuals.
- The related California Sudden Oak Death Monitoring pages track occurrences of SOD in CA.
- View up-to-date information about Sudden Oak Death in Oregon courtesy of Oregon State Extension.
- Regulated and associated hosts of Sudden Oak Death are located at the comprehensive SOD site from USDA APHIS. Program updates are also available, as well as a list of states with confirmed positive cases of Sudden Oak Death.
- Read a description of the National Plant Diagnostic Network, a USDA CSREES effort to coordinate plant diagnostic labs nationally.
- The Southern Plant Diagnostic Network has PowerPoint presentations as well as an on-line training conference for Master Gardeners. The Northeast Plant Diagnostic Network web site has various tools available including a Sudden Oak Death wall poster and a PowerPoint presentation.
- American Phytopathology Society's (APS) Sudden Oak Death Symposium Archive.
- National Ag Pest Information System (NAPIS) Sudden Oak Death (P. ramorum) page.
- Maryland Invasive Species Council web site.
- The Extension Disaster Education Network (EDEN) offers the history of Sudden Oak Death, along with other general information on this fungus.
- Washington State University Master Gardener Program web site.
- The APHIS web site has weekly program updates available for a general audience: http://www.aphis.usda.gov/ppq/ispm/sod/updates.html.
- http://www.fs.fed.us/foresthealth/briefs/2004_briefing_papers/Sudden_Oak_Death_Overview.htm which details the Phytophthora ramorum problem and the activities of USDA Forest Service, USDA APHIS, and USDA CSREES including the Land Grant Universities Extension Master Gardeners and the research projects. Unfortunately, it does not include the Phytophthora ramorum research programs of the USDA ARS or the USDA CSREES multistate research project, W 501.
- The USDA CSREES multistate rapid response research project, W501: Management of Phytophthora ramorum in U.S. Nurseries (at http://nimss.umd.edu/), which will be meeting October 4-5, 2004, in Corvallis, OR. Jennifer.Parke@oregonstate.edu, phone: (541) 737-8170, Botany and Plant Pathology Dept, Oregon State University, is chair of this multistate project.
- http://www.csrees.usda.gov/nea/plants/in_focus/hort_if_gardeners.html - is the USDA CSREES Web site url for the file we will be updating overtime.
- http://www.invasivespecies.gov/profiles/sod.shtml - excellent P. ramorum photo archives and up-to-date news articles archive.
- USDA ARS research projects on Phytophthora ramorum: Symptomatology and Host Range of the Sudden Oak Death Phytophthora. Sudden Oak Death in Small Fruit and Nursery Crops: Evaluating the Potential for Disease, Detection, and Control. Biology and Management of Soilborne Diseases and Soil and Root-Inhabiting Microorganisms.
Download the list of CAPS State Plant Health Director Contacts (Adobe Acrobat PDF, 56 KB).
National Plant Board Directory.
The National Association of State Foresters Directory.
State Master Gardener Coordinators Directory.
IPM Coordinators Directory.
PSEP Coordinators Directory.
PRED Program meeting minutes
Download the agenda and minutes from the August 10th teleconference to initiate state-based planning sessions.