What is a common sign of pest infestation in grass?

Yellowing leaves is a common sign of pest infestation in grass because pests can cause stress to the plant, leading to nutrient deficiencies and inadequate photosynthesis. When pests such as aphids, grubs, or chinch bugs feed on the grass, they can damage the cells and disrupt the plant’s ability to take in water and nutrients properly. This stress response often manifests as yellowing of the leaves, indicating that the grass is not healthy and may be struggling to thrive due to the pest pressure.

While other signs like wilting, stunted growth, and worm holes can also indicate issues with grass, they are not as directly linked to pest infestation as yellowing leaves. For example, wilting may occur due to poor moisture levels or drought conditions, while stunted growth might result from environmental factors or nutrient limitations unrelated to pests. Similarly, worm holes are more indicative of physical damage from specific insects but do not always signify a widespread infestation affecting grass health. Hence, yellowing leaves serve as a more universal indicator of pest-related problems in grasses.