Syngenta has a range of fungicides for controlling a range diseases in pot & bedding plants.
Pot and bedding plants can be very sensitive to gray mold or Botrytis.
Botrytis is a very common fungus that produces a large number of spores. Botrytis preferably attacks weak plant tissue, such as dying plant material, (cut) wounds and petals. Spores can only infect germs and plant tissue if sufficient moisture is present at around 93% humidity.
Botrytis occurs year-round, but most infections occur in the autumn and spring, as soon as the humidity increases sharply and the crop can "beat". Botrytis can germinate at a temperature between 2 and 30°C. The rate depends on the temperature, at 20°C the spores germinate within 5 hours, but faster at higher temperatures.