Eggplant Lacebug
Adult: Grayish to dark brown, mottled; flat, with transparent lacelike wings. 1/6 inch long. Nymph: Brown or black; spiny; without lacelike wings. Up to 1/10 inch long. Adults and nymphs feed in groups on underside of leaves. Leaves turn yellow ... [... more]
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Blister beetles
Many species. Gray, black, or striped. Slender, 1/2 to 3/4 inch long. Beet, chard, soybean, bean, corn, melon, peas, potato, radish, tomato and turnip. Beetles eat leaves. (Larvae feed on grasshopper eggs and are therefore somewhat ... [... more]
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Cabbage Webworm
Dull grayish yellow, fat, 5 brownish purple stripes down back. Up to 1/2 inch long. Bores into buds and stems killing young plants. Feeds under a protective web that it produces. Does little or no damage to spring crop. Cabbage webworm moths lay ... [... more]
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Garden Symphylan
White, fragile. 12 pairs of legs on adult (fewer legs on young); up to 3/8 inch long. Not classified as an insect. Found in moist soils that contain decayed plant material, particularly near greenhouses. Eats numerous tiny holes, or pits, into ... [... more]
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Beet Webworm
Yellow or green to almost black with a black stripe and numerous black spots on back. Up to 1 and 1/4 inches long. Eats leaves and buds of young plants. Rolls and folds leaves; ties them together with webs. Throughout United States; especially ... [... more]
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Red-Necked Cane Borer
Adult: Dark bronze or black beetle, shiny, copper red neck. Slender, about 1/4 inch long. Larva: White, flat head. Slender, up to 3/4 inch long. Adults eat margins of leaves. Larvae tunnel canes, causing spindle shaped swellings on ... [... more]
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Carrot Rust Fly
Adult: Shiny black or green with yellow hairs, legs, and head; black eyes. About 1/5 inch long. Larva: Yellowish-white, stiff, legless, up to 1/3 inch long. Eggs are laid in the crown of carrots. Carrot rust flies overwinter as pupae. First ... [... more]
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Potato Tuberworm
Some southern states and California; infestations localized. Larvae or pupae overwinter in tubers or in the soil. Moths appear in spring and may be seen at dawn or dusk when they are normally active or when plants are disturbed. Females lay ... [... more]
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Onion Maggot
Onion maggots overwinter as pupae in the soil. As temperatures rise in early spring pupae mature into adults and emerge from the soil. Females begin to lay eggs in less than two weeks. Females may lay about 200 eggs in less than two weeks in ... [... more]
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Rhubarb Curculio
The adult rhubarb curculio overwinters in plant debris or protected locations. In late spring adults become active and appear on leaves of rhubarb and alternate weed hosts, such as sunflower, dock, and thistle. Females lay eggs in plant stalks ... [... more]
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Rose Scale
Incrusts bark at base of canes; weakens or kills canes by feeding on sap. Prune out and destroy all heavily infested canes. Keep down weeds in the planting. Dormant oil or horticultural oil. Apply in late spring before leaves open. Spray when ... [... more]
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Bean Aphid
Adult and nymph: Dark green to bluish-black; up to 1/12 inch long; adults may be winged or wingless. Bean aphids cluster on stems and under leaves. Leaves curl and thicken, plants become yellow and unthrifty. Aphids spread virus of common bean ... [... more]
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