Which statement is consistent with effective thatch management for heat mitigation?

Which statement is consistent with effective thatch management for heat mitigation?

• A. Thatch should always be removed completely in summer
• B. Some thatch can be retained to moderate heat stress
• C. Thatch has no effect on temperature
• D. Thatch removal is unnecessary

Answer: (B)

Thatch acts as an insulating layer between the soil and the sun, so the amount left in place directly influences soil temperature on hot days. Retaining a light to moderate thatch helps slow the rate at which the surface heats, protecting the root zone and helping to hold moisture, which reduces heat stress on the turf. If you remove all thatch in summer, the soil becomes bare and more exposed to heat, leading to higher temperatures and greater stress for roots. It’s not accurate to say that thatch has no effect on temperature, and claiming that removal is always unnecessary ignores the benefits of managing excessive thatch. Keeping some thatch to moderate heat stress is the most consistent with effective management.

Thatch acts as an insulating layer between the soil and the sun, so the amount left in place directly influences soil temperature on hot days. Retaining a light to moderate thatch helps slow the rate at which the surface heats, protecting the root zone and helping to hold moisture, which reduces heat stress on the turf. If you remove all thatch in summer, the soil becomes bare and more exposed to heat, leading to higher temperatures and greater stress for roots. It’s not accurate to say that thatch has no effect on temperature, and claiming that removal is always unnecessary ignores the benefits of managing excessive thatch. Keeping some thatch to moderate heat stress is the most consistent with effective management.