AGROTECHNOLOGY Cabagge Looper (Trichoplusia ni ) By T.G. Lynn - 05.11.2022 Life stages: eggs, larvae, pupae, adult moths.The cabbage looper is a sporadic pest of potatoes. Unlike cutworms, loopers feed on potato plants during the day. They arch into a loop as they crawl. Cabagge looper larva Feeding damage caused by the cabagge looper T.G. Lynn See Full Bio