A barrier material such as plastic laid over the affected ground prevents the dispersal of spores from germinating sclerotia. Many weeds are hosts to the white mold fungus when ornamental hosts are not present. Rotate away from susceptible crops for at least 3-4 years if white mold has been found in the garden. Store plant materials under cool, dry conditions in a clean storage area. Store only mature blemish-free plant material which has been properly harvested and cured.
Fungicides are available for some types of plants and situations.
They act to prevent infection and will not get rid of an existing infection or destroy the sclerotia in the soil. Contact your County Extension Agent or the Plant Pest Diagnostic Lab at NDSU for more information on currently available fungicides. Plants Susceptible to Sclerotinia scleroriorum. PP-899, June 1986 Reviewed July 1996 NDSU Extension Service, North Dakota State University of Agriculture and Applied Science, and U.S. Department of Agriculture cooperating. Sharon D. Anderson, Director, Fargo, North Dakota.