Exotic Pest Reporting
Joseph O'Brien, USDA Forest Service, Bugwood.org
Ramorum Blight ; Sudden Oak Death
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
This fungal pathogen has been identified by USDA-APHIS as a serious threat to US Agriculture and Natural Resources, and surveys have been planned for multiple states.
Visit the Phytophthora ramorum program page for more information about this pest.
Summaries of State Plant Protection Laws and Regulations
01/27/2014 - Phytophthora ramorum update
01/27/2014 - USDA revises sudden oak death regulations
01/08/2014 - Clean soil and water keep nursery plants healthy
09/04/2013 - Saving Our Forests From Exotic Pests and Diseases
06/24/2013 - While You Recreate, Help the Forest
05/31/2013 - Oak disease is here to stay
03/15/2013 - How to Keep Oak Trees Healthily Growing
01/07/2013 - Top Pest and Disease Threats Present in Britain