Lawn Armyworm (Caterpillar)

Natural Habitat

Typically found in grassy areas, lawns, meadows, and agricultural fields.

Diet & Feeding

Strictly herbivorous; feeds primarily on various species of grasses and turf, but can also consume small crops.

Behavior Patterns

They are nocturnal feeders, hiding in the thatch or soil during the day. They are known for moving in large groups across landscapes (like an army) once they have depleted a local food source.

Risks & Benefits

They are considered a major pest to agriculture and landscaping due to their ability to quickly defoliate large areas of grass. They provide no significant direct benefit to humans but are a food source for birds and parasitic wasps.

Identified on: 2/19/2026