Definitions

cabbage looper

cabbage looper

cabbage looper, moth larva, Trichoplusia ni, that feeds by night on the leaves of cabbage and related plants and is a serious agricultural pest. Like the inchworms (of another moth family), cabbage loopers lack walking appendages in the middle of the body and progress by drawing the rear end up to the front end and then straightening. A cabbage looper has a smooth green body with a white stripe along each side and reaches a length of 11/4 in. (3.2 cm). It pupates in a cocoon on the underside of a leaf. The adult moth is brown with a white spot on each wing. Cabbage loopers are classified in the phylum Arthropoda, class Insecta, order Lepidoptera, family Noctuidae.

The cabbage looper (Trichoplusia ni) is a member of the moth family Noctuidae. 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 and potato. The adult of the species is a nocturnal brown moth.

Trichoplusia ni is also used as an expression system in the field of molecular biology.

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