What is an indication of sod webworm activity in a lawn?

Larger than normal brown patches in the lawn are a clear indication of sod webworm activity. Sod webworms are known to create damage characterized by irregular brown patches, which appear as the grass begins to die in localized areas due to their feeding habits. As these pests consume the grass blades, the foliage turns brown and ultimately dies, leaving behind these distinct patches.

While droppings on the grass and wilting of grass blades can indicate issues with various pests or environmental stressors, they are not specifically linked to sod webworm activity. Additionally, sponginess of the soil might suggest other problems, such as compaction or high moisture content, rather than being a direct symptom of sod webworm infestation. Therefore, recognizing the specific symptom of larger brown patches is essential for identifying and managing sod webworm issues effectively.