What is "cabbage looper"

n. ''Trichoplusia ni'', a noctuid moth.

The cabbage looper (Trichoplusia ni) is a member of the moth family Noctuidae. It is found throughout the southern Palaearctic ecozone, all of North America, parts of Africa and most of the Oriental, parts of Europe (primarily South Europe) and Indo- Australian region. In the United Kingdom, where the adult is primarily a (sometimes numerous) immigrant but breeding is rare, the species is also known as the Ni Moth. The name derives from the forewing marking, which resembles the lowercase Greek letter ni.

The caterpillar, a measuring worm, is smooth and pale green with white stripes and is one of a many species called cabbage worm. It is called a "looper" because it arches its body as it crawls, inchworm-style. This species is very destructive to plants due to its voracious consumption of leaves. It is not restricted to cole crops; other plant hosts include tomato, cucumber, thyme, collard greens, and potato. The adult of the species is a nocturnal brown moth.