Pseudomonas syringae van Hall, 1904
Rosmarinus officinalis, Belgium, prov. East Flanders, De Pinte © Dirk Duytschaever. The shrub is growing already for several years in the garden of the photographer.
the malignant growth erupts through the bark
Populus; Rosmarinus officinalis; Salix.
Ostry, Ramsted, Newcombe & Steenackers (2014a).