any imperfect fungus of the genus Botrytis, having the conidia in grapelike bunches: a major cause of plant disease.
noble rot.
Historical Examples

Fungi: Their Nature and Uses Mordecai Cubitt Cooke
Disease in Plants H. Marshall Ward
Epidemics Examined and Explained: or, Living Germs Proved by Analogy to be a Source of Disease John Grove
Beautiful Bulbous Plants John Weathers
Journal of the Proceedings of the Linnean Society – Vol. 3 Various
The $100 Prize Essay on the Cultivation of the Potato; and How to Cook the Potato D. H. Compton and Pierre Blot

any of a group of fungi of the genus Botrytis, several of which cause plant diseases
(winemaking) a fungus of this genus, Botrytis cinerea, which causes noble rot


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