EPPO Global Database

Phytophthora ramorum(PHYTRA)

Distribution details in Ireland

Current pest situation evaluated by EPPO on the basis of information dated 2016: Present, restricted distribution
First recorded in: 2002
From CABI Disease map 978 (2013): Present, restricted distribution
EPPO Reporting Service (2003/133) : found since 2002-11 in Rhododendron at 6 locations and Viburnum at 3 locations.

According to Brennan et al. (2008): since 2003 more than 4000 samples were collected from nurseries, garden centres, public parks and forests. P. ramorum was detected in all years mainly on Rhododendron (including wild rhododendrons) and Viburnum. Positive samples: 8% (2003), 2% (2004), 19% (2005), 10% (2006), 16% (2007). Eradication and containment measures are being taken.

EPPO Reporting Service (2010/150) : detected in 1 Larix kaempferi tree in a forest, county Tipperary. Surveys will be carried out.

EPPO Reporting Service (2011/111) : detected in a single Picea sitchensis tree in a forest.
* Brennan J, Cummins D, Kearney S, Choiseul J, Cahalane G, Nolan S (2008) Investigating the threat of Phytophthora ramorum to Ireland; the current situation. Phytopathology 98(6 suppl.), S25.

* Henricot B, Prior C (2004) Phytophthora ramorum, the cause of sudden oak death or ramorum leaf blight and dieback. Mycologist 18(4), 151-156.

* NPPO of Ireland (2003-09, 2010-07, 2011-04).

* O'Hanlon R, Choiseul J, Corrigan M, Catarame T, Destefanis M (2016) Diversity and detections of Phytophthora species from trade and non-trade environments in Ireland. Bulletin OEPP/EPPO Bulletin 46(3), 594-602.
------- During surveys from 2003 to 2015 detected on 30 hosts.