Meaning of black rot

black' rot'

Pronunciation: [key]
— Plant Pathol. Plant Pathol.
  1. any of several diseases of fruits and vegetables, characterized by black discoloration and decay of affected parts, caused by fungi, as Guignardia bidwellii, or bacteria, as Xanthomonas campestris.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.