University of Florida

Looper (cabbage or soybean)

Trichoplusia ni or Pseudoplusia includens

  • Adult: grayish-brown moth, wing span 1 1/4 in, front wings marked near center with a figure 8-shaped, silver-white spot, active at night.
  • Egg: greenish-white, ridged but flattened laterally, found singly on upper or lower leaf surfaces of upper canopy leaves, hatches in 2-3 days.
  • Larva: pale green with white line along side of body, only 3 pair of prolegs, mature larva 1 - 1 1/4 in long, larval stage lasts 14-21 days.
  • Generation Time: 26-40 days.
  • Damage: young larvae feed on under surface of leaflets leaving upper epidermis intact ("windowpaned") Older larvae consume foliage and rarely fruit. Not commonly abundant on tomato in Florida.

Looper Pictures

Looper larva and egg

Image #42.

a) larva is pale green with only 3 pairs of prolegs;

b) egg is deposited singly and has finer ridges and is more flattened than tomato fruitworm egg.

looper larva in tomato
Image #17

larvae feed mostly on foliage but can damage fruit.