beet armyworm

n. An armyworm (Spodoptera exigua) that feeds on the foliage of alfalfa, beets, soybeans, and other crops.

Thesaurus

Noun

beet armyworm - moth larva that eats foliage of beets and other vegetablesSpodoptera exiguagenus Spodoptera, Spodoptera - moths whose larvae are armywormscaterpillar - a wormlike and often brightly colored and hairy or spiny larva of a butterfly or moth

Beet Armyworm

(Spodoptera, or Laphygma, exiqua), an insect of the family Noctuidae, a serious pest of cotton, alfalfa, tomatoes, sugar beets, and many other agricultural crops. The wingspread is 26–34 mm; the fore wings are grayish brown, and the hind wings white. The beet armyworm is found in many areas of Africa, South Asia, and North America; in the USSR it is encountered in the Lower Volga Region, Transcaucasia, and Middle Asia (where there are from two to six generations per year). Development has no diapause. The moths appear in early spring and lay clumps of several dozen eggs on leaves; some species lay hundreds of eggs. The caterpillars hatch in four to 11 days.

The beet armyworm feeds on leaves, stripping them to the veins or gnawing large irregular holes. When they appear in enormous numbers, the caterpillars may penetrate stems and branches and damage the flowers, buds, and pods of cotton plants, as well as the fruits of tomatoes and the root crop of sugar beets. Not uncommonly, they destroy sprouts or sharply reduce the yield and lower the quality of crops. The beet armyworm pupates in the upper layers of the soil. Countermeasures include the application of modern agricultural techniques and the treatment of plantings with insecticides and biological preparations.

REFERENCE

Bogush, P. P. Malaia nazemnaia sovka v Turkmenistane i drugikh mestakh ee obitaniia. Ashkhabad, 1964.

P. P. BOGUSH

beet armyworm

beet armyworm

Beet Armyworm

Beet Armyworm

REFERENCE

beet armyworm

Synonyms for beet armyworm

noun moth larva that eats foliage of beets and other vegetables

Synonyms

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