Do not seed in summer unless absolutely necessary. Avoid overabundance of mulch. Avoid nitrogen deficiency, drought stress, and night watering. Remove dew in early morning. Creeping bentgrass, annual bluegrass and Kentucky bluegrass particularly susceptible.
Tall fescue is quite resistant.
Preakness, Princeton 104, NuStar, Unique, Banff, A-34, and Eagleton. Thoroughly water rings to avoid drought. Core aeration and application of wetting agents may help wetting of affected soils. Avoid piling snow in sensitive turfed areas. Remove tree leaves from turf before snow cover.