HDC projects FV 337 and FV/PE 337a aims were to investigate tray sterilisation options for the control of plant diseases during propagation. Heat treatments and disinfectants were shown to be effective at controlling Olpidium brassicae (the vector of Lettuce big-vein disease) and clubroot. The times needed to control clubroot spores at different temperatures are detailed in this factsheet. The disinfectants Aquaform and Jet 5 were used in the studies therefore the times needed to control clubroot spores in different concentrations of these two disinfectants are also given.
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