What is Sudden Oak Death?

Sudden Oak Death is a tree disease caused by the plant pathogen Phytophthora ramorum. The disease kills some oak species and has had devastating effects on forests in California and Oregon. Read more about Sudden Oak Death.

Areas of Interest

P. ramorum in Wildlands The information in this section is geared toward land management, forestry and arboriculture professionals, including Best Management Practices. P. ramorum in Nurseries This section addresses P. ramorum issues critical to nurseries, independent growers, and related plant-care/plant propagation industries, including Nursery Diagnostic Guides. P. ramorum in the Urban Interface Look here for resources that address common homeowner questions, including diagnosing Sudden Oak Death and finding an arborist to work with.

News

The Fifth Sudden Oak Death Science Symposium is June 19 – 21, 2012

APHIS places new restrictions on importing P. ramorum host plants into the U.S. Read more…

Your ideas and opinions are requested for the 2012 P. ramorum Research Needs Assessment for nurseries and wildlands. Read more…

Read the entire current newsletter.

Help stop the spread of forest pests on firewood! Check out the website of the California Firewood Task Force.

“Can My Tree Catch the Flu?” – the Sudden Oak Death youth education program – is now an interactive animation. A full description and teacher materials are available here.

Upcoming Events

5/21 – 5/25 – “4th International Workshop for Phytophthora, Pythium, and Phytopythium” and International Web Symposium, “Oomycetes of Regulatory Concern in International Trade”

6/6 - SOD Treatment Workshop, UC
Berkeley Campus

6/19 – 6/22 – Fifth Sudden Oak Death Science Symposium

See the entire events calendar.