USDA-APHIS list of current host & associated plants (PDF)
Regulated Forest Hosts (PDF)
Regulated Host List
Associated Host List
 Regulated Hosts (updated March 2008)
These plant are naturally infected by P. ramorum, and have had Koch's postulates completed, documented, reviewed, and accepted. Further details on regulated plants and plant parts can be found at http://www.aphis.usda.gov/plant_health/plant_pest_info/pram/index.shtml Associated Plant Species
These plants are found naturally infected, and P. ramorum has been cultured and/or detected using PCR, but Koch's postulates have not been completed or documented and reviewed.
(1) Reported by CA Department of Food and Agriculture (CDFA)
(2) Reported by Oregon Department of Agriculture (ODA)
(3) Reported by Department for Environment, Food and Rural Affairs, UK (DEFRA)
(4) Reported by Everett Hansen, Oregon State University (OSU)
(5) Reported by David Rizzo, University of California, Davis (UCD)
(6) Reported by Matteo Garbelotto, University of California, Berkeley (UCB)
(7) Reported by Gary Chastagner, Washington State University, Puyallup, WA
(8) Reported by Plant Protection Service, Wageningen, Netherlands
(9) Reported by Canadian Food Inspection Agency, Canada (CFIA)
(10) Reported by Washington State Department of Agriculture, Olympia, WA *Unmanufactured wood and wood products, including firewood, logs, and lumber of species listed above and marked with an asterisk (*) are regulated. See 7 CFR 301.92. (back to top) | 
