SOURCE:

S. Thomson

DISEASE:

Bacterial spot

HOST:

Plum

(Prunus domestica)

Dark brown necrotic lesions along main leaf vein. Lesions may drop off, leaving shot-hole effect.

PATHOGEN:

Xanthomonas arboricola pv. pruni

PATHOGEN SYNONYM:

Xanthomonas campestris pv. pruni