BACTERIAL BLIGHT (BROWN STEM)
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Celery

SOURCE:
K. Pernezny
DISEASE:
Bacterial blight (Brown stem)
HOST:
Celery
(Apium graveolens)
Characteristic brown discoloration of petioles, which is more evident on inside of petiole close to the crown. Parenchyma tissues are firm and brown.
PATHOGEN:
Pseudomonas cichorii