The term cabbage worm is primarily used for any of four kinds of lepidopteran whose

larvae A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. T ...

feed on cabbages and other

cole crops Cruciferous vegetables are vegetables of the family Brassicaceae (also called Cruciferae) with many genera, species, and cultivars being raised for food production such as cauliflower, cabbage, kale, garden cress, bok choy, broccoli, Brussels spr ...

. Favorite foods include broccoli, cauliflower, Brussels sprouts, collards, kale, mustard greens, turnip greens, radishes, turnips, rutabagas and kohlrabi. This small group of similar pest species is known to agriculturists as the cabbage worm compte butterflies (family Pieridae, type genus '' Pieris'', garden whites). * The small white (''P. rapae'') is a small, common, cosmopolitan butterfly whose caterpillar has fine, short fuzz and is bright green; it prefers cabbage, broccoli and cauliflower. A larger Old World form (''P. brassicae'') is called large white. A common North American form (''P. protodice'') is known as the southern cabbage butterfly. The

green-veined white The green-veined white (''Pieris napi'') is a butterfly of the family Pieridae. Appearance and distribution A circumboreal species widespread across Europe and Asia, including the Indian subcontinent, Japan, the Maghreb and North America. It i ...

(''P. napi'') occurs in Europe and North America. * The cabbage looper (''Trichoplusia ni'') is a member of the moth family

Noctuidae The Noctuidae, commonly known as owlet moths, cutworms or armyworms, are a family of moths. They are considered the most controversial family in the superfamily Noctuoidea because many of the clades are constantly changing, along with the othe ...

. The caterpillar is smooth and green with white stripes. 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. * The cabbage webworm (''Hellula undalis'') is a widely distributed webworm native to southern Europe or Asia that also injures cabbages and other vegetables in the Gulf states of the United States. * The

diamondback moth The diamondback moth (''Plutella xylostella''), sometimes called the cabbage moth, is a moth species of the family Plutellidae and genus ''Plutella''. The small, grayish-brown moth sometimes has a cream-colored band that forms a diamond along i ...

(''Plutella xylostella'' or, in some literature known by the synonym ''P. maculipennis'') is a member of the moth family

Plutellidae The Plutellidae are a family of moths commonly known as the diamondback moths, named after the diamondback moth (''Plutella xylostella'') of European origin. It was once considered to have three subfamilies: Plutellinae, Praydinae, and Scythrop ...

. The caterpillar is smooth and solid green in color. When disturbed, it thrashes and drops off the plant. The newly emerged larva is a

leaf miner A leaf miner is any one of numerous species of insects in which the larval stage lives in, and eats, the leaf tissue of plants. The vast majority of leaf-mining insects are moths ( Lepidoptera), sawflies (Symphyta, the mother clade of wasp ...

, entering the tissues of the leaf and consuming the

parenchyma Parenchyma () is the bulk of functional substance in an animal organ or structure such as a tumour. In zoology it is the name for the tissue that fills the interior of flatworms. Etymology The term ''parenchyma'' is New Latin from the word π ...

between the two outer layers of the leaf. Larger larvae make holes through the leaf, consuming all the tissue. The adult of the species is a small, elongated gray moth with whitish spots on the forewings that form two diamond shapes when the moth is at rest. The diamondback moth is primarily a

tropical The tropics are the regions of Earth surrounding the Equator. They are defined in latitude by the Tropic of Cancer in the Northern Hemisphere at N and the Tropic of Capricorn in the Southern Hemisphere at S. The tropics are also referred to ...

species, but is migratory, reaching

temperate zone In geography, the temperate climates of Earth occur in the middle latitudes (23.5° to 66.5° N/S of Equator), which span between the tropics and the polar regions of Earth. These zones generally have wider temperature ranges throughout ...

s in most years.

External links

Imported Cabbageworm info page
on the UF / IFAS Featured Creatures Web site
diamondback moth
on the UF / IFAS Featured Creatures Web site
cabbage looper
on the UF / IFAS Featured Creatures Web site Lepidoptera and humans Agricultural pest insects