Damage symptoms
As the name suggests, grey mould’s (Botryotinia fuckeliana / Botrytis cinerea) most common symptoms are grey-brown lesions. The lesions occur on leaves, stems, fruits and flowers. On flowers, usually small round specks occur first, called ‘pocks’. These may or may not grow into larger grey-brown lesions. The symptoms on fruits, flowers and on various parts of potted plants often only become visible during and after cold storage. In lettuce, grey mould (Botryotinia fuckeliana / Botrytis cinerea)is part of the foot rot complex, which causes rotting of the foot and may cause death of the plants. In cucumber and tomato the fungus causes lesions on pruning wounds. These lesions may encircle the stem, so the part of the plant above the lesion wilts and dies.
In vegetables and strawberry, grey mould (Botryotinia fuckeliana / Botrytis cinerea)affects the fruit. In potted plants, the cuttings die due to carry-over infection from infected parent plants.
