Control measures

The most effective control measure is cultural and consists of limiting the presence of host plants in the rotation (potato, rape, leguminous plants, etc.) and reducing favourable microclimates (dampness at soil level and basal foliage). In the case of high risk of disease and intensive potato production, care should be taken to limit nitrogen fertilisation.

Potato cultivars susceptible to wind are more easily attacked.

Chemical control is another available control measure though with little effect on the primary soil inoculum, the resting sclerotia.

Preventative biological control can be used to treat the soil so as to reduce its infective potential prior to planting any susceptible crop.