Botrytis cinerea, the agent of grey mould in cyclamen, attacks plants at all stages of development.
Climatic conditions for cyclamen growing 15ºC to 20°C (59ºF to 68ºF) are ideal conditions for the spread of this fungus.
Besides chemical controls, excellent results may be had with preventive measures such as:
- not too much nitrogen in the growing medium
- maintaining dry conditions
- good ventilation (above all at night)
- removal of blown flowers |