First report of Pseudomonas syringae pv. aesculi in the Czech Republic
From 2008 to 2010, horse chestnut (Aesculus hippocastanum) trees growing in 216 locations in the Czech Republic were surveyed for the possible presence of bleeding canker disease (Pseudomonas syringae pv. aesculi – EPPO Alert List). Typical symptoms (rust-coloured liquid oozing from cracks in the bark and necrotic lesions in the phloem) were observed at 16 locations. Samples were collected from 5 of these locations for further testing (pathogenicity test, real-time PCR). The presence of Pseudomonas syringae pv. aesculi could be confirmed in 1 location (Měděnec) on 3 trees. This is the first report of Pseudomonas syringae pv. aesculi in the Czech Republic.
Mertelik J, Kloudova K, Pankova I, Krejzar V, Kudela V (2013) Occurrence of horse chestnut bleeding canker caused by Pseudomonas syringae pv. aesculi in the Czech Republic. Forest Pathology, doi:10.1111/efp.12021.