black rot

noun

, Plant Pathology.

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.

black rot

noun

1. any of various plant diseases of fruits and vegetables, producing blackening, rotting, and shrivelling and caused by bacteria (including Xanthomonas campestris ) and fungi (such as Physalospora malorum )

Word History and Origins

Origin of black rot¹

An Americanism dating back to 1840–50

Example Sentences

It is said to be the most effectual preventive of black rot, and to destroy the Phylloxera, the two worst enemies of the grape.

From Project Gutenberg

When raised in humid climates it is subject to the attacks of mildew and black-rot.

From Project Gutenberg

On the other hand the fungus troubles are serious, the black-rot having been especially destructive in some sections.

From Project Gutenberg

The species is very susceptible to mildew and black-rot, and like Californica is not resistant to phylloxera.

From Project Gutenberg

Second, foliage particularly susceptible to the attack of mildew and fruit susceptible to the attack of black-rot.

From Project Gutenberg