Bacterial blight of aster caused by Pseudomonas syringae pv. tabaci in Brazil.
A natural occurrence of Pseudomonas syringae pv. tabaci causing leaf spot symptoms in nursery plants of Aster sp. was
observed in a commercial plantation located at Atibaia, State of São Paulo, Brazil, in 2002. The pathogen was identified
through biochemical, physiological, serological and pathogenicity tests. This bacterial strain was deposited at Phytobacteria
Culture Collection of Instituto Biológico (IBSBF) under access number 1662.