The little white moths that fly out your lawn in the summertime are known as lawn moths. These little pests do not actually do any damage to your turf. It is their larvae, Sod Web Worms, that do the damage to your lawn. They are a surface feeding insect that will eat the blades of the grass leaving large areas of irregularly cropped grass and dead areas. Some of these spots recover on its own since the roots of the grass are still intact.