EPPO Global Database

Phytophthora ramorum(PHYTRA)

Distribution details in United States of America (Washington)

Current pest situation evaluated by EPPO on the basis of information dated 2014: Present, restricted distribution
From CABI Disease map 978 (2013): Present, no details
From NPPO: Present, few occurrences
EPPO Reporting Service (2003/079) : found in 4 rhododendrons at one nursery in King's county.

EPPO Reporting Service (2005/160) : 16 infested sites in Washington State in 2005.
* Dart NL, Chastagner GA (2007) Estimated economic losses associated with the destruction of plants due to Phytophthora ramorum quarantine efforts in Washington State. Plant Health Progress 8(1): 20.
------- Nursery.

* Davidson JM, Werres S, Garbelotto M, Hansen M, Rizzo DM (2003) Sudden oak death and associated diseases caused by Phytophthora ramorum. Plant Health Progress 4(1), 12.

* Elliott M, Rollins L, Bourret T, Chastagner G (2020) First report of leaf blight caused by Phytophthora ramorum on cherry laurel (Prunus laurocerasus) in Washington State, USA. Plant disease https://doi.org/10.1094/PDIS-07-20-1489-PDN
------- report of 2014

* Oak SW, Hwang J, Jeffers SN, Tkacz BM (2008) General Technical Report - Pacific Southwest Research Station, USDA Forest Service No.PSW-GTR-214, 59-64.

* Prospero, S.; Grunwald, N. J.; Winton, L. M.; Hansen, E. M. (2009) Phytopathology 99 (6), 739-749.
-------- In nurseries.

* NAPPO Pest Alert – Official notifications. Sudden Oak Death (SOD), Phytophthora ramorum, first detection in Washington State – 06/12/2003. http://www.pestalert.org

USDA-APHIS website
- Plant disease caused by Phytophthora ramorum. A national strategic plant for USDA (2005-09-15). http://www.aphis.usda.gov/ppq/ispm/pramorum/pdf_files/usdaprstratplan.pdf
- Pest detection and management programs – Phytophthora ramorum. Program update 2005-11-16. http://www.aphis.usda.gov/ppq/ispm/pramorum/updates/update11-15-05.pdf
California oak mortality task force website. http://nature.berkeley.edu/comtf/html/about_p__ramorum.html
Situation in neighbouring countries
Country State Status
Canada British Columbia Present, few occurrences view...
Canada Present, few occurrences view...