Cultural practices are commonly used to avoid the spread of black rot in a field, and particularly within seed beds. Growers and seed companies are aware of the benefits of hot water seed treatment for control, but they are sometimes reluctant to use this approach. The reasons are twofold. First, it is not always effective, particularly with heavily infested seedlots. Second, some reduction in percent germination may result from hot water seed treatment.
White mold can sometimes be an important fungal disease of crucifers, especially cabbage.
No fungicides are registered for control of this disease on cabbage. Rotation, control of host weed populations, and insect control are the methods currently employed to minimize pest impact on the crop. The greatest economic losses associated with this disease occur when the white mold is spread between touching cabbage heads that are being held in pallet boxes during storage. An infestation of the disease Fusarium yellows has had devastating consequences for some growers of storage cabbage. No chemical controls are available.