Wider row spacing of plants, use of wire trellis supports to raise foliage from the ground, and pruning of branches, are some ways to decrease humidity. Field trials using these methods are encouraging and control could be improved by using fungicides in combination with these practices. Crop rotation is a necessary practice for minimizing many diseases. However, it is not an effective for control of Sclerotinia diseases because of the longevity of soil borne sclerotia. In addition, tilling generally assures the presence of sclerotia at or near the soil surface.
Resistant cultivars are essentially nonexistent, but there are people working towards that goal.
Currently most work has been on beans and germ-plasm resistance. Results suggest that plant coverage rather than systemic movement of benomyl is important for good control. In addition, a separate study found that benomyl's effectiveness is often diminished because of microbial degradation of the compound in soil. Thus, TMTD may prolong the effectiveness of benomyl in soil. A reduction in apothecial emergence as a result of the combined treatment was observed in the field.