Risk factors

Fungi of the genus Fusarium are wound and storage pathogens, as they penetrate tubers through wounds occurring in the course of harvesting operations, packing or transport and they develop further during storage. Until such time as wounds are completely healed, they may develop rapidly.

The optimum temperatures for tuber infection lie between 15 and 25°C.

Dry rots are also more frequent when farm hygiene (cleaning and disinfection, destruction of waste, etc.) is limited.