USDA-APHIS list of current host & associated plants (PDF)
Regulated Forest Hosts (PDF)
Regulated Host List
Associated Host List  Regulated Hosts (updated Feb 2010)
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.
# 30 May 2008 Cercis chinense - redbud changed to correctly read Cercis chinensis - Chinese redbud
(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); (April 2009) Food and Environment Research Agency (FERA)
(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) | 
