What temperature range is commonly associated with the occurrence of Gray Snow Mold?

Gray Snow Mold, caused by the fungus Typhula spp., typically thrives in cooler temperatures often associated with late fall and early spring. The temperature range of 32 to 45 degrees Fahrenheit is ideal for the development of this disease. At these temperatures, the conditions are conducive to the growth of the fungus, particularly when there is a layer of snow that can retain moisture and provide the habitat needed for the spores to develop and infect the turfgrass.

Understanding this temperature range is essential for pest management as it allows turf managers to anticipate the possible occurrence of Gray Snow Mold and implement preventive measures, such as appropriate winter fertilization techniques or managing thatch levels, to minimize disease incidence.