• The first symptom of the disease in the field is drooping of the plants followed by sudden death. The leaves may also turn yellow and drop off prematurely.
• Pod formation is severely affected. In collar regions of the wilted plants, necrosis and discolouration can be seen.
• The diseased plants can be pulled out from the easily than the healthy ones.
• When the diseased stem is cut, there is a dark brown,discolored band around the vascular system. Infection occurs directly through the root hairs.
• The fungus survives for indefinite periods in the soil.

Management

• Treating the seeds with Carbendazim (2 g/kg of seed) protects the seedlings during the initial stages of growth.
• Soil drenching with Copper oxychloride 0.25%.