It is a disease caused by fungus, in which the root turns black and starts rotting. Infected plant growth stops. If control is not done in time, then husbands dry up. For its control, fullstop, 30 g in 15 liters of water. and Kilmite, 5 ml. and Punch, 10 grams. Or spray by mixing 1 tablet of booster. Spray it again after 6-7 days.