BACTERIAL LEAF SPOT (BLIGHT)
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Poinsettia

SOURCE:
APS
DISEASE:
Bacterial leaf spot (Blight)
HOST:
Poinsettia
(Euphorbia pulcherrima)
Poinsettia with diseased stem. Woody stems may have a yellowed cortex and dark vascular tissues. The stem tip may curve with deformed terminal leaves.
PATHOGEN:
Curtobacterium flaccumfaciens pv. poinsettiae