Sclerotinia sclerotiorum and Sclerotinia minor Symptoms Infection takes place on the leaves, fruits and stems near the soil line of plants susceptible to Sclerotinia disease. The infected area of the plant takes on a dark green or water-soaked appearance, becomes yellow or may appear light in colour. Subsequently white cottony mycelium spreads over the affected parts and black sclerotial bodies are produced on the plant surfaces and also in the pith cavity of the stem.
Infection spreads up the stem and is followed by severe tissue shredding.
The plant begins to wilt and eventually dies.