| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,734,554,513 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
armyworm |
Also found in: Dictionary/thesaurus, Medical, Hutchinson | 0.06 sec. |
|
armyworm, larva of a moth, Pseudaletia unipuncta, found in North America E of the Rocky Mts. When numerous, armyworms move in hordes, traveling by night and devouring grasses, young grains, and some leguminous crops. The full-grown larva is about 2 in. (5 cm) long, dark gray with yellow and green stripes. There are usually two generations in a season, the larvae hatching from eggs in late spring and again in late summer. Pupation (see insect insect, invertebrate animal of the class Insecta of the phylum Arthropoda . Like other arthropods, an insect has a hard outer covering, or exoskeleton, a segmented body, and jointed legs. Adult insects typically have wings and are the only flying invertebrates. ..... Click the link for more information. ) is underground. The moth is grayish brown with a white spot on each fore wing. Armyworms are sometimes serious pests, especially in the second generation of the summer, which occurs when corn and wheat are maturing. Control methods include the use of poisoned bait and the digging of ditches and holes as traps. The armyworm can also be controlled by toxaphene insecticide, but this chemical is prohibited in most states. Armyworms are classified in the phylum Arthropoda Arthropoda (ärthrŏp`ədə) [Gr.,=jointed feet], largest and most diverse animal phylum. ..... Click the link for more information. , class Insecta, order Lepidoptera, family Noctuidae. armyworm [′är·mē‚wərm] (invertebrate zoology) Any of the larvae of certain species of noctuid moths composing the family Phalaenidae; economically important pests of corn and other grasses. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in | ? References in periodicals archive | |
|---|---|---|
Herculex XTRA is the stacked-trait product, which combines Herculex RW with Herculex I, providing protection against corn rootworm, European and southwestern corn borer, fall armyworm, black cutworm and western bean cutworm. One agricultural pest, the fall armyworm moth, blows from the south to the northeastern and north-central United States and bursts out in abundant populations in the new territory, according to Dingle. The Herculex I product is unique because it includes resistance to black cutworm, fall armyworm, southwestern corn borer and suppression of corn earworm in addition to European corn borer. |
| Encyclopedia |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|