Understanding Sod Webworms
Sod webworms are the larvae of lawn moths belonging to the Crambidae family. In the Houston area, the most common species is the tropical sod webworm (Herpetogramma phaeopteralis). These small, light brown moths lay their eggs in the grass, and the emerging caterpillars feed on the turf, causing significant damage.
Identifying sod webworm infestations can be challenging since the caterpillars are relatively small (about three-quarters of an inch) and often blend with the color of the grass. However, there are signs to look out for: