Thatch in turf grass is associated with which condition?

• A. It is conductive to turf grass disease
• B. It reduces weed growth
• C. It eliminates pests
• D. It improves drought resistance

Answer: (A)

Thatch creates a moist, warm, and poorly aerated layer between the soil and the grass canopy. That microclimate favors fungal and bacterial pathogens and provides a habitat for disease-causing organisms, making turf diseases more likely to develop and spread under those conditions. So, thatch is associated with disease in turf grass. The other statements don’t fit as well—thatch doesn’t inherently reduce weeds, eliminate pests, or improve drought resistance, and in many cases it can worsen stress by hindering water infiltration and gas exchange.