| Kingdom: Monera | 
| Phylum: Proteobacteria | 
| Class: Gammaproteobacteria | 
| Order: Pseudomonadales | 
| Family: Pseudomonadaceae | 
| Genus: Pseudomonas | 
| Subject: Pseudomonas syringae pv. syringae van Hall 1902 | 
| Kingdom: Plantae | 
| Phylum: Magnoliophyta | 
| Class: Magnoliopsida | 
| Subclass: Rosidae | 
| Order: Rosales | 
| Family: Rosaceae | 
| Subfamily: Maloideae | 
| Genus: Prunus | 
| Subject: Prunus persica (L.) Batsch |