These provide a food base from which fairy ring fungi can spread. The application of fungicides is not a recommended control option provided by turf pathologists The use of pesticides may increase the incidence of fairy rings by destroying saprophytic bacteria and fungi which compete with the fairy ring fungi. Drilling holes prior to applying fungicides in hopes of counteracting this problem is also reported as ineffective. Several researchers recommend fairy ring infected turf areas be fumigated. Depending on temperature, fumigation may be complete within two weeks.
Fumigants can be caustic, burning through clothing, skin and lungs.
Use with extreme care or hire a professional applicator. A second option involves removing the soil to a depth of one foot and wide enough to extend at least two feet on either side of the fairy ring. Replace this soil with non-infected soil and reseed or lay sod. If any of fairy ring fungus contaminated soil or sod is spilled on healthy grass during either of these processes, the fungus will start over in that location. A third option involves killing the sod and then rototilling the fairy ring infected area in several directions until the soil is thoroughly mixed.