Use adequate rotations taking into account potential soil contamination and the other crop species cultivated in the field.
Plant in heated and well-prepared soil.
Use healthy seed tubers to ensure a homogeneous emergence and a low risk of sclerotia on the tubers at harvest.
Some cultivars might be less prone to sclerotia formation on tubers at harvest. Until now, current cultivars have not been adequately assessed.
Chemical protection of the tuber before planting is an additional guarantee of safety; soil treatment at planting is permitted in some countries.
Destroying haulms by uprooting them may reduce the formation of sclerotia. It is essential that the interval between haulm destruction and harvest should be as short as possible.
Other control measures such as biological control with antagonistic fungi (Verticillium, Trichoderma) are being studied as well as the use of green manure crops.
Crops
