Pseudomonas syringae van Hall, 1904

polyphagous

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

host plants

Populus; Rosmarinus officinalis; Salix.

references

Ostry, Ramsted, Newcombe & Steenackers (2014a).