New hosts added to Phytophthora ramorum list

Effective March 1, 2012, the USDA Animal and Plant Health Inspection Service (APHIS) will add eight plants to the list of P. ramorum associated hosts.

The plants are: Ilex cornuta (Buford holly, Chinese holly, horned holly); Illicium parviflorum (yellow anise); Larix kaempferi (Japanese larch); Magnolia denudate (lily tree); Mahonia nervosa (creeping Oregon grape); Molinadendron sinaloense; Trachelospermum jasminoides (star jasmine, confederate jasmine); and Veronica spicata Syn. Pseudolysimachion spicatum (spiked speedwell).

As of March 1, 2012 any nurseries within the regulated and quarantined areas containing these newly listed plants must be properly inspected, sampled and tested in order to be able to move any plants interstate.

In addition, APHIS is moving Cinnamomum camphora from the associated host list to the proven and restricted host list based on new information received from the California Department of Food and Agriculture.

These changes bring the official U.S. P. ramorum host list to 137 plants.

Get more information, including the entire host list, here: http://www.aphis.usda.gov/plant_health/plant_pest_info/pram/downloads/pdf_files/SPRO_%20DA-2012-03.pdf