Soybeans were scouted at the V4 growth stage and stunted growth, stubby roots, and root rot were observed in spotty areas across the field.
This issue was confirmed by the NC State Plant, Disease and Insect Clinic to be injury from root-knot nematodes. Symptomology associated with root-knot nematodes in soybeans include non-uniform stunting, wilting, chlorotic patches, and galling found on the roots. In this environment, However, damaging numbers of root-knot nematodes were recovered from the sample submitted. Selecting a resistant variety is the most cost effective preventative measure.