Symptoms may appear at any time after plants emergence. On leaves, the disease starts as small purple flecks, developing to dark brown lesion that could dry out the leaves. On stems, lesions are more elongated than on leaves and could potentially girdle the stems. Pods may also be affected later in the season infecting the seeds. Infected seeds may present either no symptoms or shrinkage and dark brown discoloration. Infected seeds can cause foot rot resulting in girdled stems, stunted plants, or plant death.

Reddish brown to black streaks appear on primary and secondary roots. These streaks coalesce at later stages, lower stem is often girdled. Red discoloration of the vascular system can be seen, especially near cotyledon attachment. Stunted growth, yellowing and necrosis appear on the basal foliage.

Initial symptoms are often seen on the first primary and lateral roots as honey brown discolorations. As the disease progresses the infected tissues often become soft and darker in color. Plants are easily pulled out of the ground, the cortex often sloughs off and remains behind in the soil leaving the vascular tissue strand attached to the plant. Stunting and wilting plants, yellowing from the bottom upward, and premature death can occur in severe cases.

Leaves turn light grayish, and powdery on the upper surface of lowest and oldest leaves. Pods are often malformed, small, poorly filled and fall off before they mature. Pod and & stems may turn purplish color. Small black specks, which are fruiting bodies of the fungus, develop in older lesions

Small,dark-green water soaked lesions on leaves and stipules. Leaflets turn yellowish and later brown and papery. Lesions on the pods are sunken and turn olive-brown. Discoloration in heavily infected seed

White cottony growth(mycelium) forms on stems and pods. This affected tissue may soften and become slimy. Low areas with increased moisture are often seen affected first. Lodging and bleaching of stems is common. Black hard bodies(sclerotia) are present within the mycelium, stem cavities, pods, and in or on the soil. Affected plants may wilt and die prematurely and contaminated crops could be rejected.