
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.
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.