black knot
|
noun Plant Pathology.
a disease of plants, especially of plums and cherries, characterized by black knotlike overgrowths on the branches, twigs, etc., caused by a fungus, Dibotryon morbosa.
RELATED CONTENT
Nearby words
- black iris, the,
- black isle,
- black japan,
- black kite,
- black knight,
- black land,
- black lead,
- black letter,
- black light,
- black liquor
Origin of black knot
An Americanism dating back to 1835–45
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for black knot
The fungus is also related to the black-knot fungus on the plum, but its life-history is not yet known.
The branches are very liable to disfigurement by the black-knot and the foliage by the tent-caterpillar.
Handbook of the Trees of New England|Lorin Low DameHappily, black-knot may be controlled by cutting out the diseased wood.
The Cherries of New York|U. P. Hedrick
black knot
noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012