Armyworm

Armyworm caterpillars are smooth-skinned with stripes running lengthwise down their bodies, varying in color from green to brown to black as they mature. They can be identified by the inverted Y-shaped marking on their head capsule. Mature larvae can reach up to 1.5 inches in length.

Homeowners in Myrtle Beach may notice rapidly defoliated lawns or garden plants. Check for ragged edges or skeletonized leaves on turfgrass and ornamental plants, as armyworms are voracious feeders. Large numbers of caterpillars may be observed migrating across lawns or paved surfaces in search of food.

MBPC offers targeted insecticide applications to control armyworm infestations on Grand Strand properties. Our SC Department of Pesticide Regulation-licensed technicians use products specifically formulated to eliminate armyworms while minimizing impact on beneficial insects. We recommend prompt treatment to prevent extensive damage to your lawn or garden.

Maintain a healthy lawn by providing adequate water and fertilization, as healthy turfgrass is more resistant to armyworm damage. Regularly inspect your lawn and garden plants for signs of armyworm activity, especially during late summer and early fall. Remove thatch buildup to reduce armyworm harborage.

Armyworms thrive in the warm, humid subtropical climate of coastal South Carolina. They are commonly found in lawns, pastures, and agricultural fields throughout the Grand Strand. Armyworm moths lay their eggs on grasses and other host plants, and the larvae feed on foliage.

Peak activity: Late Summer-Fall