To what does thatch contribute?

• A. Disease and insect problems
• B. Increased soil fertility
• C. Improved water retention
• D. Faster growth

Answer: (A)

Thatch is the layer of dead and living plant tissue that sits between the soil and the green growth. When this layer becomes thick, it creates a favorable microclimate for pests and pathogens and can trap moisture against the turf, reducing air and water penetration to the roots. That combination makes the grass more susceptible to diseases and insect problems, which is why the best choice is thatch contributing to disease and insect problems.