Leafminer

Common Name: Serpentine Leaf Miner, Vegetables Leaf Miner, Pea Leafminer

Genus: Liriomyza trifolii, Liriomyza sativa, Liriomyza huidobrensis

Identification: see lifecycle

Lifecycle: In temperate areas the insect overwinters as a pupa in the soil. After emergence the shiny black fly emerges and oviposits white oval eggs at the leaf base or within leaf tissue. The eggs hatch in 4 days and the yellowish larvae mine into the leaves. The entire cycle takes 21 to 23 days.

Geographic Distribution: Most vegetable growing areas in the United States.

Damage and Treatment: The larvae feeding between the leaf surfaces leave winding mines or large blotches that decrease photosynthesis, promote disease and decay and make the produce unsaleable. 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.

Corn - Field

Fruits Nuts Trees and Vegetables

Gourds

Head Lettuce

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

Bermudagrass

Black Nightshade

Bluegrass, Annual

Cabbage Looper Trichoplusia

Codling Moth Cydia

Colorado Potato Beetle Leptinotarsa

Common Cocklebur Xanthium

Corn Earworm

Corn Silkfly

Crabgrass Digitaria sanguinalis, Digitaria ischaemum, Digitaria ciliaris

Cucumber Beetle

Cutworms Agrotis ipsilon, Agrotis orthogonia, Peridroma saucia

Dallisgrass

Downy Mildew Pseudoperonospora

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

Fall Armyworm Spodoptera

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

Goosegrass Eleusine

Green Peach Aphid Myzus

Greenhouse Whitefly

Imported Cabbageworm

Kochia Kochia

Lambsquarters Chenopodium

Leafhoppers

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

Lesser Cornstalk Borer

Lygus Bug Lygus

Melonworm

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

Nutsedges Cyperus rotundus, Cyperus esculentus

Panicum, Fall Panicum

Pear Psylla Cacopsylla

Pennsylvania Smartweed Polygonum

Phytophthora Blight Phytophthora

Pickleworm

Pigweed, Redroot Amaranthus

Plant Bugs

Prickly Sida Sida

Purslane

Quackgrass

Ragweeds Ambrosia artemisiifolia, Ambrosia trifida

Sap Beetle

Silverleaf Whitefly Bemisia tabaci, Bemisia argentifolii

Sprangletop

Squash Bug

Stink Bug Nezara viridula, Chlorockroa say, Euschistus consperus

Sweet Potato Silverleaf Whitefly Bemisia tabaci, Bemisia argentifolii

Tarnished Plant Bug Lygus

Tobacco Budworm Helicoverpa

Velvetleaf Abutilon

Venice Mallow Hibiscus

Waterhemp

Wild Mustard Brassica

Wild Sunflower Helianthus

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