عنوان مقاله [English]
نویسندگان [English]چکیده [English]
In the summer of 2013, some bacterial isolates were obtained from walnut tissues with the symptoms of shallow bark canker in the Alborz province of Iran. Based on the phenotype and genotype features, the causal agent was identified as Brenneria nigrifluens. It was the first report of B. nigrifluens causing shallow-bark canker in walnuts in the Alborz province of Iran. The existence of this disease in the Alborz province can pose a latent threat to many walnut orchards in that province.