Bug Identifier
Yellow-striped Armyworm
Community identification

Yellow-striped Armyworm

Spodoptera ornithogalli

Order & Family
Order: Lepidoptera, Family: Noctuidae
Size
Caterpillars grow to approximately 35-45 mm (1.4-1.8 inches) long.
See this bug in the Encyclopedia

Natural Habitat

Agricultural fields, gardens, and meadows across North America, especially in the southern United States.

Diet & Feeding

Broad host range including crops like corn, cotton, tomatoes, and alfalfa, as well as various weeds and ornamental plants.

Behavior Patterns

Larvae are active both day and night, though they often hide in soil or debris during the hottest parts of the day. They undergo multiple instars before pupating in the soil.

Risks & Benefits

Considered a significant agricultural pest due to its ability to defoliate crops rapidly; however, they serve as a food source for various birds, predatory insects, and parasitic wasps.