Which of the following is a common non-pest related problem in turfgrass?

Drought stress is a common non-pest related problem in turfgrass because it is primarily a climatic and environmental issue rather than a direct result of pest activity. When turfgrass experiences insufficient moisture, it can exhibit symptoms like wilting, browning, and reduced growth. This stress can significantly affect the overall health of the grass, leading to poor aesthetics and functionality in the landscape.

In contrast, insect damage, fungal infections, and weed infestations are all problems directly related to the presence of pests or competing plants. Insect damage results from the feeding habits of pests, fungal infections arise from pathogens attacking the grass, and weed infestations involve unwanted plant species competing for resources. Understanding these distinctions helps turf managers develop effective management strategies that address environmental stresses and pest pressures separately.