Billbugs and white grubs are Insects that damage turf grasses by feeding on the roots. Heavy infestations of billbugs and white grubs may kill grass or attract mammals, such as skunks, that damage grass when feeding on grubs.
Healthy lawns tolerate injury better than lawns in poor condition.
Time insecticide applications for when billbug adults are present. White grubs are best controlled when a maximum number of young grubs are present in the upper root zone. Billbugs and white grubs are serious pests of turfgrass in parts of Colorado. Both groups of Insects feed below ground and damage roots or the growing crown area of the plant. Infestations also may attract predators, such as skunks and raccoons, that dig and damage lawns in search of the Insects.