Infected plants are no longer marketable. After infection, the disease spreads rapidly on the plant.
Sclerotinia rot [Sclerotinia minor]
With waterlogging and wetness in general. The fungus overwinters by means of sclerotia in the soil or on dead crop residue. It can cause infections at any time during the growing season.
Pattern of damage
Wilting of the outer leaves first before moving inwards, rotting of the lower leaves and root collar (Picture 1). Infected tissue coated with a cottony white fungus mycelium, in which the 1 mm black sclerotia can be found (Picture 2).