The Collaborative International Dictionary
Rot \Rot\, n.
Process of rotting; decay; putrefaction.
(Bot.) A disease or decay in fruits, leaves, or wood, supposed to be caused by minute fungi. See Bitter rot, Black rot, etc., below.
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[Cf. G. rotz glanders.] A fatal distemper which attacks sheep and sometimes other animals. It is due to the presence of a parasitic worm in the liver or gall bladder. See 1st Fluke, 2.
His cattle must of rot and murrain die.
--Milton.Bitter rot (Bot.), a disease of apples, caused by the fungus Gl[ae]osporium fructigenum.
--F. L. Scribner.Black rot (Bot.), a disease of grapevines, attacking the leaves and fruit, caused by the fungus L[ae]stadia Bidwellii.
--F. L. Scribner.Dry rot (Bot.) See under Dry.
Grinder's rot (Med.) See under Grinder.
Potato rot. (Bot.) See under Potato.
White rot (Bot.), a disease of grapes, first appearing in whitish pustules on the fruit, caused by the fungus Coniothyrium diplodiella.
--F. L. Scribner.
Wiktionary
n. A disease of grapevines, attacking the leaves and fruit, caused by the fungus ''Laestadia bidwellii''.
WordNet
n. a fungous disease causing darkening and decay of the leaves of fruits and vegetables
Wikipedia
Grape black rot is a fungal disease caused by an ascomycetous fungus, Guignardia bidwellii, that attacks grape vines during hot and humid weather. “Grape black rot originated in eastern North America, but now occurs in portions of Europe, South America, and Asia. It can cause complete crop loss in warm, humid climates, but is virtually unknown in regions with arid summers.” The name comes from the black fringe that borders growing brown patches on the leaves. The disease also attacks other parts of the plant,“all green parts of the vine: the shoots, leaf and fruit stems, tendrils, and fruit. The most damaging effect is to the fruit”.
Grape black rot affects many grape growers throughout the United States, therefore, it is important to understand the disease life cycle and environmental conditions to best manage the disease. Once infection takes place, different methods are available to control the disease.
Black rot is a name used for various diseases of cultivated plants caused by fungi or bacteria, producing dark brown discoloration and decay in the leaves of fruit and vegetables:
- A disease of the apple, pear and quince caused by a fungus ( Botryosphaeria obtusa or Physalospora cydoniae)
- A disease of grape vines caused by a fungus (Guignardia bidwellii), affecting the aboveground part of the vine, and favored by warm, humid weather; also called grape rot
- A disease of cabbage and related plants caused by a bacterium ( Xanthomonas campestris pv. campestris). Occurring around the world, it affects primarily the aboveground parts of plants. Vegetables in the crucifer family are susceptible, including broccoli, Brussels sprouts, cabbage, cauliflower, Chinese cabbage, kale, mustard, radish, rutabaga, and turnip. Many weeds may host this pathogen including Shepherd's Purse, wild mustard, and yellow rocket.Black Rot of Cabbage | Horticulture and Home Pest News. Integrated Pest Management at Iowa State University.
- A disease of the potato caused by a bacterium (Erwinia atroseptica)
- A disease of citrus plants caused by a fungus ( Alternaria citri )
- A disease of the sweet potato caused by a fungus ( Ceratostomella fimbriata)
Usage examples of "black rot".
Similarly, the door itself was a great hunk of weathered and peeling oak that apparently hung on two horse-head hinges that were crusted with black rot.
We had such a hard rain these past two year that the best soil got washed down to the river, and we got black rot in the rye stores, and it come up in the grain again this year.
Some of the hens had gotten frostbite, for they were tender in those unfeathered fleshy parts, and Crope feared the black rot might set in.
I was somewhat embarrassed by the honor paid to myself as the originator of a means of retarding the Black Rot, and could only feel that my inspiration had been merely a fortunate accident.
People get fits trying to keep up the show, when it's all rot, black rot, the automobiles, the buildings and the souls, and it doesn't make any difference, one way or another.
Most of the black rot from fee lake bottom had been washed away by the Duskrill flowing once more along the ravine, yet some of the decay still clung here and there to the rocks and crevices of the valley floor.