Phytophthora ramorum found on Quercus phillyraeoides in Ireland
In May 2010, the presence of Phytophthora ramorum (EPPO Alert List) was detected (by PCR) on Quercus phillyraeoides in Ireland. The infected sample had been collected from a Q. phillyraeoides tree (initially misidentified as Q. ilex) growing in a historical garden open to the public in county Wicklow (south of Dublin). The infected Q. phillyraeoides tree was destroyed by burning. Intensive sampling in the infected garden showed that 10 more plants were infected with P. ramorum (Kalmia, Michelia, Magnolia, Viburnum, Rhododendron, and Pieris). All infected plants have been destroyed. Monitoring of P. ramorum will continue in Ireland.
NPPO of Ireland (2010-07 and 2010-08).