Armyworm, Beet

Common Name: Beet Armyworm

Genus: Spodoptera

Species: exigua

Identification: see lifecycle

Lifecycle: The insect overwinters as the pupa. The small adult moth, with 1 1/4-inch wingspan is grayish-brown in color. The female lays early in the spring in irregular masses of about 80 eggs each. They hatch in 2 to 5 days and the larvae feed for about 3 weeks. The mature green larvae have prominent dark lateral stripes. It pupates in the upper 1/4 inch of soil. There are normally 4 generations per season.

Geographic Distribution: Distributed throughout the Gulf Coast states and westward to the Pacific Coast.

Damage and Treatment: They are general feeders and attack foliage, stems and the roots of vegetable crops. Treatment should be made when insect populations and/or damage levels reach economic thresholds. Refer to local University Extension Pest Management Guidelines for specific state thresholds.

Cavalo Broccolo

Chinese Broccoli

Corn

Cotton

Dry Shelled Beans and Peas

Fruits Nuts Trees and Vegetables

Head Lettuce

Potatoes

Small Grains

Succulent Peas & Beans

Alfalfa Looper

Alfalfa Weevil Hypera

Amaranthes Amaranthus palmeri, Amaranthus hybridus, Amaranthus spinosus

Aphids Therioaphis maculata, Dysphis plantaginea, Acyrthosiphon kondoi, Acyrthosiphon kondoi, Acyrthosiphon pisum, Aphis gossypi

Army Cutworm

Armyworms

Barnyardgrass Echinochloa

Bermudagrass

Black Nightshade

Bluegrass, Annual

Boll Weevil Anthonomus

Broadleaf Filaree

Broadleaf Signalgrass

Cabbage Looper Trichoplusia

Cabbage Webworm

Carpetweed

Codling Moth Cydia

Colorado Potato Beetle Leptinotarsa

Common Cocklebur Xanthium

Corn Borers

Corn Earworm

Corn Rootworm

Crabgrass Digitaria sanguinalis, Digitaria ischaemum, Digitaria ciliaris

Cutworms Agrotis ipsilon, Agrotis orthogonia, Peridroma saucia

Dallisgrass

Diamondback Moth

Eastern Nightshade Solanum americanum, Solanum nigrum, Solanum ptycanthum, Solanum saccachoides

European Corn Borer Ostrinia

Fall Armyworm Spodoptera

Flea Beetles

Florida Pusley

Foxtail Species Setaria venticillata, Setaria faberi, Setaria viridis, Setaria glauca

Goosegrass Eleusine

Grasshopper Melanoplus sanguinipes, Camnula pellacida

Green Peach Aphid Myzus

Greenhouse Whitefly

Imported Cabbageworm

Jimsonweed Datura

Kochia Kochia

Lambsquarters Chenopodium

Leafhoppers

Leafminer Liriomyza trifolii, Liriomyza sativa, Liriomyza huidobrensis

Leafroller Archips rosanus, Archips argyrospila, Argyrotaenia velutinana, Choristorenra rosaceana

Lygus Bug Lygus

Nightshades Solanum americanum, Solanum nigrum, Solanum ptycanthum, Solanum saccachoides

Northern Corn Rootworm Diabrotica longicornus barberi, Diabrotica virgifera virgifera

Panicum, Fall Panicum

Panicum, Texas Panicum

Pea Aphid

Pear Psylla Cacopsylla

Pennsylvania Smartweed Polygonum

Perennial Ryegrass

Pigweed, Redroot Amaranthus

Pink Bollworm Pectinophora

Prickly Sida Sida

Purslane

Quackgrass

Ragweeds Ambrosia artemisiifolia, Ambrosia trifida

Silverleaf Whitefly Bemisia tabaci, Bemisia argentifolii

Southern Corn Rootworm Diabrotica

Southwestern Corn Borer Diatrea

Spider Mites Tetranychus urticae, Tetranychus turkestani, Tetranychus pacificus, Tetranychus cinnabarinus

Spotted Cucumber Beetle Diabrotica

Spurge

Stink Bug Nezara viridula, Chlorockroa say, Euschistus consperus

Sweet Potato Silverleaf Whitefly Bemisia tabaci, Bemisia argentifolii

Tarnished Plant Bug Lygus

Thrips

Tobacco Budworm Helicoverpa

Two-spotted Spider Mite

Velvetbean Caterpillar

Velvetleaf Abutilon

Venice Mallow Hibiscus

Western Corn Rootworm Diabrotica longicornus barberi, Diabrotica virgifera virgifera

Whiteflies

Wild Mustard Brassica

Wild Sunflower Helianthus

Wireworms Melanotus fissilis, Limonius spp. Many species in the order Coleoptera, family Elatoridae.

Yellow Nutsedge

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