Diagnosis and Management

In this section, you’ll find links to descriptions and photos of Phytophthora ramorum symptoms, a list of currently known host plants, and how to diagnose, treat, and manage the disease.

Symptoms and Diagnosis

Hosts and Symptoms: An in-depth description of how Sudden Oak Death affects host plants.

Diagnosis Questionnaire: Step-by-step guide to diagnosing your plant or tree.

Sampling: Sampling procedures in preparation for lab testing.

Host & Associated Plant Photo Gallery: Extensive list of host plants and photos referenced by scientific and common names.


Planning and regulatory resources

Regulations: Information on federal, state, and international regulations on P. ramorum.

Response Planning: Sample invasive response plans and other resources for advanced preparation.

Restoration: Resources on selecting the right tree and other options for restoring damaged woodlands.


Treatment and Management

Best Management Practices: Customized BMPs for different user groups, in printable PDF form.

Treatments: Preventive measures that may protect plants.

Managing Sudden Oak Death: Swiecki, T.J and Bernhardt, E. A. 2013. Gen. Tech. Rep. PSW-GTR-242. 129 pages.

Sanitation and Reducing Spread: Helpful details and links on sanitation measures to reduce the risk of spreading the pathogen.

Area-specific resources

P. ramorum in the Urban Interface: List of resources for those who live and work in infested areas along the urban-wildland interface.

P. ramorum in Wildlands: Resources useful when addressing or managing P. ramorum or Sudden Oak Death in forests and wildlands.

P. ramorum in Nurseries: Information for nursery growers and regulators working in nursery environments.

P. ramorum in Oregon: The Oregon Sudden Oak Death Task Force’s Strategic Plan for managing P. ramorum in Oregon’s forests.

Native Plant and Tribal Resources: Information about Sudden Oak Death (Phytophthora ramorum) and native plants with an emphasis on those issues concerning tribes.