Pseudomonas syringae subsp. savastanoi (ex Smith) subsp. nov., nom. rev., the bacterium causing excrescences on Oleaceae and Nerium oleander L.
The new taxon is proposed to include the olive, ash and oleander pathogens (pv. oleae, pv. fraxini and pv. nerii, respectively), which can be distinguished from one another on the basis of their pathogenicity and host range.