Which of the following describes the impact of excessive thatch on turfgrass?

Excessive thatch can create an environment for pests because it provides a layer of organic material that can harbor insects and disease. When thatch becomes too thick, it can lead to poor air circulation and moisture retention issues in the turf, creating an ideal habitat for various pests. These pests include insects that may feed on the grass roots or foliage, leading to weakened turf health. Additionally, a thick thatch layer can prevent proper water absorption and reduce turf resilience, further promoting conditions that attract pest infestations.

In contrast, healthy thatch levels can provide some benefits, such as moisture retention; however, when excessive, those benefits can quickly turn into issues that lead to pest problems. Recognizing the balance needed for thatch in turf management is essential for maintaining a thriving turfgrass environment.