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Low Temperature Damage to Turf
Injury to warm-season turfgrasses often occurs when temperatures drop below 20°F (-6.7°C). In general, major winter injury to turfgrass is caused by the following: 1) tissue desiccation, 2) direct low temperature kill, 3) diseases, and 4) traffic effects.
For example, damage from the 1989-90 freeze can probably be attributed to poor cultural practices which weakened turf and made it more susceptible to injury or death from low temperatures. Subsequent damage may also have resulted from effects of traffic on frozen turf.
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