- This disease is caused by the fungus Helicobasidium purpureum.
- The disease has a wide host range, including various root crops and perennial weeds and may be a problem where potatoes are grown in vegetable rotations.
- The disease survives in soil as sclerotia or as mycelial mats.
- Infection of potato tubers includes superficial hyphae over the tuber surface, lesions on the skin and penetration of the skin, which can result in secondary soft rots.
Reducing the risk of infection
The risk of disease infection may be reduced by
- wide rotations of all susceptible crops
- early harvesting of susceptible crops.
Violet root rot notes
Violet root rot 2006 (Biology; symptoms; alternative hosts; reduction of risk)