Cutworms

Common Name: Black, Pale Western, Variegated

Genus: Agrotis ipsilon, Agrotis orthogonia, Peridroma saucia

Identification: see lifecycle

Lifecycle: They overwinter as partly grown or fully grown larvae. They start feeding in the spring and in early summer, when in the soil they change to pupae and the adult emerges in a few days. The females lay eggs on the stems of grasses, weeds, etc., and the eggs hatch in 2 days to 2 weeks. The larvae remain below the surface of the ground during the day and feed at night. Different species have one or several generations depending on the location.

Geographic Distribution: Cutworms can be found in all crop regions of the United States.

Damage and Treatment: The caterpillars eat off the plants just above the ground. Most of the plant is not consumed, merely being enough to cause it to fall over. They have a great capacity for doing a lot of damage. 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.

Alfalfa

Cauliflower

Cavalo Broccolo

Chinese Broccoli

Corn

Cotton

Dry Shelled Beans and Peas

Fruits Nuts Trees and Vegetables

Gourds

Head Lettuce

Kohlrabi

Potatoes

Small Grains

Sorghum

Soybeans

Succulent Peas & Beans

Sunflowers

Tobacco

Alfalfa Caterpillar Colias

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

Armyworm, Beet Spodoptera

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

Cucumber Beetle

Cupgrass Eriochloa gracilis, Eriochloa villosa

Dallisgrass

Diamondback Moth

Downy Mildew Pseudoperonospora

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

Johnsongrass seedling Sorghum

Kochia Kochia

Lambsquarters Chenopodium

Leafhoppers

Leafminer Liriomyza trifolii, Liriomyza sativa, Liriomyza huidobrensis

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

Lygus Bug Lygus

Melonworm

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

Northern Corn Rootworm Diabrotica longicornus barberi, Diabrotica virgifera virgifera

Nutsedges Cyperus rotundus, Cyperus esculentus

Panicum, Fall Panicum

Panicum, Texas Panicum

Pea Aphid

Pear Psylla Cacopsylla

Pennsylvania Smartweed Polygonum

Perennial Ryegrass

Phytophthora Blight Phytophthora

Pickleworm

Pigweed, Redroot Amaranthus

Pink Bollworm Pectinophora

Plant Bugs

Prickly Sida Sida

Purslane

Quackgrass

Ragweeds Ambrosia artemisiifolia, Ambrosia trifida

Root Maggots

Sandbur, Field Cenchrus

Shattercane Sorghum

Sheperdspurse

Sicklepod Cassia

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

Sprangletop

Spurge

Spurred Anoda Anoda

Squash Bug

Stink Bug Nezara viridula, Chlorockroa say, Euschistus consperus

Sweet Potato Silverleaf Whitefly Bemisia tabaci, Bemisia argentifolii

Swinecress

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 Radish

Wild Sunflower Helianthus

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

Yellow Nutsedge

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