ring rot


noun Plant Pathology.

a disease of potatoes, characterized by wilted foliage and rotting of the ring of vascular bundles in the tubers, caused by a bacterium, Corynebacterium sepedonicum.

Origin of ring rot

An Americanism dating back to 1900–05

British Dictionary definitions for ring rot

ring rot

noun

a virulent bacterial disease of potatoes occurring in the vascular ring of the potato tuber Also called: potato ring rot