White Mold of Potato

White Mold of Potato

White mold is caused by the fungus Sclerotinia sclerotiorum.  The fungus can survive for several years in the soil as hard black bodies called sclerotia.  This fungus can also infect dry beans, canola, and over 400 other plant species.  

The use of protectant fungicides can increase the incidence of white mold in potatoes.

Fungicide choice, application method, and timing of application are important in managing white mold of potato.