root knot

root knot ExamplesWord Origin noun Plant Pathology.

1. a disease of plants, characterized by galls or knots on the roots and stunted growth, caused by any of several nematodes of the genus Meloidogyne.

Origin of root knot First recorded in 1885–90 Examples from the Web for root knot Historical Examples of root knot

On light, sandy soils a fairly good crop may be made, but on such soils, wilt and root-knot are dangerous foes.

Agriculture for Beginners

Charles William Burkett

root knot in Science root knot

1. A disease of plants characterized by protuberant swellings on the roots caused by infestation with nematodes.