Double-striped armyworms are caterpillars known for feeding on grasses and turf plants. These insects can cause significant damage to lawns, pastures, and agricultural crops when large populations develop.
Quick Facts
- Scientific Name: Mythimna unipuncta
- Family: Noctuidae
- Habitat: Lawns, fields, and grassy areas
- Diet: Grass and cereal crops
- Status: Turf and crop pest
Identification
Armyworm caterpillars are typically green or brown with two light stripes running down the length of their bodies. They are known for moving in large groups while feeding, which is how they earned the name “armyworm.”
Adults are moths belonging to the group of moths that produce plant-feeding larvae.
Distribution
Double-striped armyworms are widely distributed across North America and other regions where grassy vegetation is abundant.
Life Cycle
Adult moths lay eggs on grasses. Larvae hatch and feed heavily on leaves before pupating in the soil.
Pest Status
Large infestations may cause patches of dead turf or damage cereal crops.
Prevention
- Maintain healthy turfgrass
- Monitor lawns for feeding damage
- Encourage beneficial predators
Control
Early detection and integrated pest management strategies help prevent severe armyworm damage.