Aphids

Common Name: Spotted Alfalfa aphid, Rosy apple, Blue aphid, Pea aphid, Cotton/melon aphid

Genus: Therioaphis maculata, Dysphis plantaginea, Acyrthosiphon kondoi, Acyrthosiphon kondoi, Acyrthosiphon pisum, Aphis gossypi

Identification: Most aphids are green, red or brown. Their soft, pear-shaped bodies can measure up to nearly 1/2-inch in length. They can be recognized by their small heads and long bodies, as well as a pair of cornicles (secreting tubes) that project from the back of their abdomen.

Lifecycle: Eggs that had been laid in the winter finally hatch in the spring, delivering numerous wingless female species. These females give birth to other wingless females until a generation of winged females returns to the original plant. In the fall, these winged females produce wingless males and egg-laying females, which mate, and begin the cycle again.

Geographic Distribution: Found throughout North America.

Damage and Treatment: Aphid damage can cause reduction of plant vigor and can sometimes stunt the growth of the plant. Deformation of the buds and flowers can occur, as well as the curling and puckering of leaves. Most importantly, aphids can serve as the transmitters of other plant diseases and disease-producing organisms. 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

Apples

Brussels Sprouts

Cauliflower

Cavalo Broccolo

Chinese Broccoli

Currant

Dry Shelled Beans and Peas

Elderberry

Fruits Nuts Trees and Vegetables

Gooseberry

Gourds

Head Lettuce

Huckleberry

Kohlrabi

Potatoes

Small Grains

Sorghum

Soybeans

Summer Squash

Tobacco

Winter Squash

Alfalfa Caterpillar Colias

Alfalfa Looper

Alfalfa Weevil Hypera

Amaranthes Amaranthus palmeri, Amaranthus hybridus, Amaranthus spinosus

Army Cutworm

Armyworm, Beet Spodoptera

Armyworms

Barnyardgrass Echinochloa

Bermudagrass

Bittercress

Black Nightshade

Black Vine Weevil

Bluegrass, Annual

Broadleaf Filaree

Broadleaf Signalgrass

Cabbage Looper Trichoplusia

Cabbage Webworm

Carpetweed

Cherry Fruit Fly

Chickweed

Clover

Codling Moth Cydia

Colorado Potato Beetle Leptinotarsa

Common Cocklebur Xanthium

Common Ragweed

Corn Borers

Corn Earworm

Corn Rootworm

Crabgrass Digitaria sanguinalis, Digitaria ischaemum, Digitaria ciliaris

Cucumber Beetle

Cupgrass Eriochloa gracilis, Eriochloa villosa

Cutworms Agrotis ipsilon, Agrotis orthogonia, Peridroma saucia

Dallisgrass

Dandelion

Diamondback Moth

Downy Mildew Pseudoperonospora

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

European Corn Borer Ostrinia

Fall Armyworm Spodoptera

Field Pennycress

Flea Beetles

Fleahoppers

Florida Pusley

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

Giant Ragweed

Goosegrass Eleusine

Grasshopper Melanoplus sanguinipes, Camnula pellacida

Green Peach Aphid Myzus

Greenhouse Whitefly

Hornworms

Imported Cabbageworm

Japanese Beetle

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

Long-Horned Beetle

Lygus Bug Lygus

Maggots

Melonworm

Morningglory

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

Plant Bugs

Plantain

Plum Curculio

Potato Flea Beetle

Prickly Sida Sida

Purslane

Quackgrass

Ragweeds Ambrosia artemisiifolia, Ambrosia trifida

Root Maggots

Sandbur, Field Cenchrus

Sap Beetle

Shattercane Sorghum

Sheperdspurse

Sicklepod Cassia

Silverleaf Whitefly Bemisia tabaci, Bemisia argentifolii

Southern Armyworm

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

Thistle

Thrips

Tobacco Budworm Helicoverpa

True Armyworm

Two-spotted Spider Mite

Velvetbean Caterpillar

Velvetleaf Abutilon

Venice Mallow Hibiscus

Whiteflies

Wild Mustard Brassica

Wild Radish

Wild Sunflower Helianthus

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

Yellow Nutsedge

Yellow Striped Armyworm

Beleaf Learn more...

Brigade 2EC Learn more...

Brigade WSB Learn more...

Brigadier Learn more...

Carbine Learn more...

Hero Learn more...

Mustang Learn more...

Mustang Max EC Learn more...

Steed Learn more...