black ring

noun

, Plant Pathology.

1. a disease of grasses, characterized by black rings surrounding the stems and blighted seeds, caused by a fungus, Balansia strangulans.

Example Sentences

From the roof hung a gilded cage containing turtle doves, quite white, with a black ring round their necks.

From Project Gutenberg

On standing, a brown or black ring is developed where the liquids join, if any nitrate or nitrite is present.

From Project Gutenberg

And as the shadows lightened on the long dim flats, we saw in the distance the black ring of the stockade on its little elevation.

From Project Gutenberg

The large quills of the back and croup are from seven to twelve inches long, mostly with one central black ring.

From Project Gutenberg

It has a naked black ring round its eyes; the wings are black; the rest of the plumage white.

From Project Gutenberg