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Sudden Oak Death
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APHIS Revises Phytophthora ramorum Domestic Quarantine Relieving Regulatory Requirements for Certain Non-host Nurseries
Effective July 3, 2013, APHIS will no longer impose P. ramorum regulatory requirements for the interstate movement of non-host nursery stock from certain nurseries located in the regulated areas of California, Oregon, and Washington. Specifically, nurseries located in regulated areas that do not contain, and that do not ship nursery stock listed as proven host taxa or as associated plant taxa are no longer required to comply with 7CFR 301.92. APHIS will, however, continue to regulate all interstate shipping nurseries located in quarantine areas, including those that contain only non-host nursery stock.
APHIS is taking this action based on regulatory data obtained since 2004, which indicate no detections of P. ramorum in non-host nurseries. The reason for continued regulation of non-host nurseries located in quarantine areas that have no P. ramorum detections is based on the presence of P. ramorum in the surrounding natural environment, the inseparability of the areas for quarantine enforcement purposes, and the strategy for risk mitigation. This amendment to the regulations will assist both APHIS and State Regulatory Agencies to refocus their resources on nurseries located in quarantine areas and those high-risk nurseries where P. ramorum has been detected, while minimizing the burden on the nursery industry.
If APHIS revises the list of proven or associated plant host taxa to include new host plant genera/species, then nurseries in regulated areas that grow the new proven host taxa will be subjected to the regulations under 7 CFR 301.92. Regulated host nurseries may be eligible for unrestricted movement if they discontinue the growing, processing, handling or shipping of regulated or associated articles of nursery stock, and if inspection conducted in accordance with 7 CFR 301.92-11 reveals freedom from P. ramorum.
For additional details on the Federeal Phytophthora ramorum regulatory program, please contact your local inspector.
State SOD Quarantines (this link goes to a 120 KB PDF developed by the California Dept. of Food & Agriculture -- it applies to Oregon, California & Washington)
Sudden oak death (SOD) is a serious plant disease that attacks many types of plants and trees common to the Pacific Northwest, including azaleas, big leaf maples, huckleberry, California bay laurel, camellia, myrtles, honeysuckle, Pacific madrone, Douglas fir, rhododendrons, and vibernum. It does not affect humans and is not a food safety concern.
Sudden oak death is caused by a pathogen called Phytophthora ramorum. The pathogen is not a fungus or a bacterium, but a member of a unique group of organisms called Oomycetes. Oomycetes share some characteristics of fungi but are biologically different.
Symptoms of sudden oak death
Symptoms vary from plant to plant, and may include leaf spots, needle and tip blight, shoot-tip dieback, and canker formations. Many other plant pathogens cause the same symptoms. The only way to confirm the presence of sudden oak death is through laboratory testing.
California Oak Mortality Task Force [External Link]
Oregon Department of Agriculture [External Link]
California Department of Food and Agriculture [External Link]
Notification of Nursery Shipments [External Link]
Phytophthora ramorum - a guide for WA nurseries [PDF 426 KB]
Host List [PDF 172 KB]
California Oak Mortality Task Force (COMTF)Newsletter[External Link]
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