root knot


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root knot

n.
A disease of plants caused by nematodes and characterized by galls on the roots.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

root′ knot`


n.
a disease of plants characterized by galls or knots on the roots and stunted growth, caused by any of several nematodes.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
Although current knowledge is uncertain, the Mexican marigold (Tagetes minuta) is sometimes used in an attempt to control root knot nematodes - wormlike animals found on the roots of some plants that can lead to stunted growth.
Comparison of sequences from the ribosomal DNA intergenic region of Meloidogyne mayaguensis and other major tropical root knot nematodes.
Hemeng, "Efficacy of selected nematicides for the control of root knot nematode, Meloidogyne spp.
Inoculum of root knot nematode was obtained from the nematode infected cucumber at farmer's field in Hisar Haryana, India.
Among these nematodes, the root knot nematodes (Meloidogyne spp.) are considered to becryptic enemies for crops compared to other plant parasitic nematodes that are polyphagous, endoparasites and sedentary vascular root feeders.
Chilli (Capsicum annuum L.) is attacked by root knot nematodes which reduce the yields significantly.
Several economically important species parasitize various plant species, but the root knot and cyst nematodes belonging to the Heteroderidae family are especially dangerous.
Additionally, MAJESTENE is labeled for a wide array of crops against multiple nematodes, including root knot, cyst, sting and lance and is approved for use in conventional and organic systems.
catenulata in concentration of 5 x [10.sup.6] spores / mL, is a potential agent for biological control of root knot nematodes in crops of beans [Vigna unguiculata (L.) Walp.] and infect 80% of the eggs of Meloidogyne spp.
Cause Fusarium or verticillium wilt or root knot nematodes.