Grey mould
common symptoms are grey-brown lesions. The lesions occur on leaves, stems, fruits and flowers. On flowers, usually small round specks occur first, called [...] 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 [...] the content of the plant cells as nutrients. On the infected area, new spores are formed within a few days. Under circumstances unfavourable for germination