EPPO Global Database

Pseudomonas syringae pv. actinidiae(PSDMAK)

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Brown spots surrounded by yellow haloes are visible in spring on kiwifruit leaves.

Courtesy: Plant Protection Service of Emilia-Romagna region (IT).

In spring, vine branches and trunks affected by Pseudomonas syringae pv. actinidiae show cankers which usually ooze red exudates.

Courtesy: Plant Protection Service of Emilia-Romagna region (IT).

Browning of tissue under the cortex of vine branches (Actinidia chinensis).

Courtesy: Plant Protection Service of Emilia-Romagna region (IT).

Morphology of colonies grown for 5 days on King’s medium B, supplemented with antibiotics

Courtesy: E. Stefani, Dept. of Life Sciences, Reggio Emilia (IT)

Morphology of colonies grown for 5 days on NSA medium, supplemented with antibiotics

Courtesy: E. Stefani, Dept. of Life Sciences, Reggio Emilia (IT)

Bacterial exudate oozing from infected actinidia twig

Courtesy: Riccardo Bugiani (Plant Protection Service - Emilia-Romagna Region - IT)

Bacterial ooze due to infection on kiwiplant

Courtesy: Riccardo Bugiani (Plant Protection Service - Emilia-Romagna Region - IT)

Bacterial exudate oozing from infected actinidia twigs

Courtesy: Riccardo Bugiani (Plant Protection Service - Emilia-Romagna Region - IT)

Colonization of vascular tissues by Pseudomonas syringae pv. actinidiae can result in foliar wilting at the beginning of the season (A. chinensis cv. Hort 16 A).

Courtesy: Plant Protection Service of Emilia-Romagna region (IT).