What types of grasses are primarily susceptible to Gray Snow Mold?

The primary susceptibility to Gray Snow Mold is well-established in creeping bentgrass and tall fescue. These grass types are particularly vulnerable due to their growth habits and environmental conditions they prefer. Creeping bentgrass, often used in golf courses and high-maintenance turf areas, thrives in cooler, moist conditions, which are perfect for the development of Gray Snow Mold pathogens, particularly in the winter months. Tall fescue, known for its adaptability and drought resistance, can also show susceptibility under the right conditions, especially when moisture is retained by snow cover.

In contrast, fine fescue and Kentucky bluegrass generally exhibit better resilience to this fungal disease. Annual bluegrass and Bermuda grass are less affected as well; Bermuda grass is a warm-season grass and not typically exposed to conditions conducive for Gray Snow Mold during winter. Perennial ryegrass and zoysia grass also tend to show less susceptibility to this specific mold compared to creeping bentgrass and tall fescue. Therefore, the association between creeping bentgrass and tall fescue with Gray Snow Mold highlights specific environmental conditions and grass types that allow for the disease's prevalence.