Cabbage Looper

Scientific Name: Trichoplusia ni

Order & Family: Lepidoptera: Noctuidae

Size: Caterpillars grow to about 30-40 mm (1.2-1.6 inches) in length.

Cabbage Looper

Natural Habitat

Found in gardens, agricultural fields, and greenhouses throughout much of the world, particularly North America.

Diet & Feeding

Feed on a wide variety of plants, especially cruciferous vegetables like cabbage, broccoli, kale, and cauliflower.

Behavior Patterns

Named for their 'looping' movement (inching like an inchworm); they are nocturnal feeders that often pupate on the undersides of host leaves.

Risks & Benefits

Considered a significant agricultural pest due to leaf damage; provides a food source for various birds, spiders, and parasitic wasps.

Identified on: 6/23/2026