What is a frost delay?
Golf course superintendents will delay the start of play when frost covers the playing surface. Frost is actually frozen dew. Because a grass blade is mostly water, it freezes as well when frost is present, making it very brittle. By walking on frost covered grass, the leaf blades break and cells rupture. The result is that the grass turns brown and eventually dies, making it susceptible to disease and weed infestation. Golf course superintendents do not like frost delays any more than golfers because the frost prevents them from undertaking maintenance activities.