Joseph O'Brien, USDA Forest Service, Bugwood.org
Ramorum Blight ; Sudden Oak Death
Phytophthora ramorum

Ramorum Blight ; Sudden Oak Death (Phytophthora ramorum) is a fungal pathogen of oaks and laurals. It was first detected in California in 1995.

This 'water mold' thrives in moist, mild environs has laid waste to tan oaks in the northwest. Plants from nurseries in quarantine areas must be certified to be free of this disease. Don't move plants or soil to prevent spreading this disease.

Federal Quarantine and Regulated County Map

Visit the Phytopthora ramorum program page for more information about this pest.

 
Planned Surveys
Summaries of State Plant Protection Laws and Regulations
California   Florida   Indiana   Iowa   Louisiana   Mississippi   Missouri   Oklahoma   Oregon   Rhode Island   South Carolina   Tennessee   Wisconsin  
News

03/15/2013 - How to Keep Oak Trees Healthily Growing
01/07/2013 - Top Pest and Disease Threats Present in Britain
12/26/2012 - Selecting and Working with an Arborist
11/26/2012 - Approved Facilities for Hosts of Phytophthora ramorum
11/26/2012 - Coast Live Oak Resistance to Phytophthora ramorum
11/12/2012 - Ornamentals as physical barriers between blocks of plants susc...
11/12/2012 - Population Structure of the Sudden Oak Death Pathogen
11/01/2012 - Do Not Move Firewood and Pests
09/05/2012 - Outdoor fans urged to clean up to stop tree-disease spread in ...
08/15/2012 - Steam shown to kill Sudden Oak Death Organism
08/13/2012 - Survival of Phytophthora ramorum
08/06/2012 - A Technique for Determining Inoculum Threshold for the Spread ...
03/02/2012 - Landowners to get financial support to beat larch blight: Scot...
02/08/2012 - Disease eradication costs lives of 11000 trees
02/03/2012 - Fungus strikes down stately home's shrubs
02/02/2012 - 8 Species Added to P. ramorum Host List!!!
01/30/2012 - New Host Plants Added to Phytophthora ramorum Regulations
01/09/2012 - Oregons Worst Invasive Species Include Mussels and Hawkweed an...
10/03/2011 - Sudden Oak Death Detected Outside Quarantine
06/24/2011 - Buy it Where You Burn it Campaign Aims to Control Insects
06/24/2011 - OSU uses campground firewood as invasive species education tool
06/20/2011 - Updated USDA Regulations Effective June 27 Will Help Stem the ...
02/28/2011 - Ammendment to Federal Order Requiring Advance Notification for...
02/24/2011 - Purdue Plant and Diagnostic Laboratory
02/07/2011 - Advance Notification Requirement for Phytophthora ramorum
01/06/2011 - Comprehensive Report on Sudden Oak Death
Videos

Plant Plague - SOD
Related Pages

Maps

Planned Surveys for Phytophthora ramorum
Not all counties are required to report.
Close