EPPO Global Database

Phytophthora ramorum(PHYTRA)

Distribution details in United States of America (Oregon)

Current pest situation evaluated by EPPO on the basis of information dated 2021: Present, restricted distribution
First recorded in: 2001
From CABI Disease map 978 (2013): Present, restricted distribution
EPPO Reporting Service (2002/020) . According to NAPPO Newsletter Sep 2002, found in 1 county only.

EPPO Reporting Service (2003/037) : further details.

EPPO Reporting Service (2003/134) : mating type A1 found for the first time in North America.

EPPO Reporting Service (2005/160) : 20 infested sites in Oregon in 2005.

Søndreli et al. (2015): EU1 lineage also present since 2015.
* 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.

* Grünwald NJ, Larsen MM, Kamvar ZN, Reeser PW, Kanaskie A, Laine J, Wiese R (2016) First report of the EU1 clonal lineage of Phytophthora ramorum on tanoak in an Oregon forest. Plant Disease 100(5), p 1024.

* Hansen, E.M.; Reeser, P.W.; Sutton, W.; Winton, L.M.; Osterbauer, N. (2003) First report of A1 mating type of Phytophthora ramorum in North America. Plant Disease, 87(10), p 1267

* NAPPO Annual Meeting, Banff, Alberta (Canada), 2001-10-15/19.

* NAPPO Phytosanitary Alert of 2001-08-13.

* LeBoldus JM, Sondreli KL, Sutton W, Reeser P, Navarro S, Kanaskie A, Grünwald NJ (2018) First report of Phytophthora ramorum lineage EU1 infecting Douglas fir and grand fir in Oregon. Plant Disease 102(2), p 455.

* Peterson EK, Hansen EM, Kanaskie A (2015) Temporal epidemiology of sudden oak death in Oregon. Phytopathology 105(7), 937-946.

* Søndreli KL, Kanaskie A, Navarro SM, Reeser P, LeBoldus JM. Characterizing the variation in aggressiveness and sporulation of the NA1 and EU1 lineages of Phytophthora ramorum in Oregon. Plant Pathology 70(6), 1342-1353.

* Sutton W, Hensen EM, Reeser PW, Kanaskie (2009) Stream monitoring for detection of Phytophthora ramorum in Oregon tanoak forests. Plant Disease 93(11), 1182-1186.
----- Regularly recovered from streams draining infested sites in Oregon forests.

UDDA-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 Present, few occurrences view...
Canada British Columbia Present, few occurrences view...