Xanthomonas arboricola pv. corylina

On a layered hazel shoot in the process of rooting,
dieback after necrosis of a new lateral shoot.
L. Gardan - INRA, Angers (FR)

In orchard, on a 3-year-old hazel tree, dieback of
several 1- and 2-year-old shoots starting from localized
necrosis on buds or new lateral shoots.
INRA, Angers (FR)