Infection occurs on all aerial plant parts but is most evident on flowers and stems. Infected tissue is grey or brown in colour and initially covered with a grey mouldy growth, especially under humid conditions. Flower infection results in flower drop, poor pod formation, seed shrinkage and seed infection. Stem infection results in premature ripening. There is also a seedling blight phase.
Premature ripening and seed shrinkage cause yield loss and seed discolouration causes quality losses.
