Adult leafminers are black-bristled gray or black flies usually with yellow stripes about 1/10-inch long. Larvae leafminers are stubby, green translucent maggots about 1/8- inch long. Leafminer maggots feed between the upper and lower surfaces of leaves creating tunnels or mines that appear irregular and white or brown on the surface. Good Products for Pest […] More
Whiteflies look like very tiny white moths. Like their close relatives aphids, they suck juices from tender plant leaves. Whiteflies congregate in large numbers on the undersides of leaves and fly up in a cloud when disturbed. Whiteflies are found year-round in warm climates; in colder climates, they are seen in the summer. They thrive […] More
The adult imported cabbageworm is a white day-flying butterfly with one to four black spots on its wings and a wingspan of 1½ to 2 inches. The cabbageworm larvae are 1¼ inch velvety, light-green caterpillars with a fine yellow stripe down the back. Imported cabbageworm larvae chew ragged holes in the foliage of cabbage-family plants […] More
Weevils are oval, brownish-gray or black, flightless, hard-shelled beetles about ⅓-inch long with a pronounced snout. Weevil larvae are plump, white grubs up to ½-inch long with yellowish-brown heads. Adult weevils chew on leaf edges leaving small scalloped bite marks. Larvae are soil-dwelling and feed on plant roots. Weevil-chewed leaves do little harm to plants, […] More
Adult tarnished plant bugs are oval and small, just ¼ inch big. They are brown mottled with yellow, bronze, or reddish marks and each forewing is black-tipped with a yellow triangle. Tarnished plant bug nymphs are yellow-green and wingless, somewhat similar to adults in appearance. Tarnished plant bug eggs are yellow and long and curved. […] More
The squash vine borer is a wrinkled, cream-colored caterpillar with a brown head, about 1 to 2 inches long. The adult form of the vine borer is a narrow-winged olive-brown moth with a 1- to 1½-inch wide wingspan. The moth has fringed hind legs, a red abdomen with black rings, and translucent wings. It is […] More
Adult and young squash bugs suck the juices from leaves causing leaves to wilt, dry up, and turn brown. Squash bugs commonly attack plants in the cucumber and squash family. Adult female squash bugs lay eggs from spring through midsummer on the stems and undersides of leaves. The orange-yellow to bronze eggs are elliptical and […] More
Adult Mexican bean beetles are oval yellowish-brown to copper-colored beetles with 16 black spots on their wing covers. They are ¼-inch long and look something like a ladybug. Bean beetle larvae are fat yellowish or orange humpbacked grubs with long branching spines 5/16-inch long. Mexican bean beetle larvae and adults feed on snap beans, lima […] More
Tomato hornworms are green caterpillars up to 4½ inches long with a black horn protruding from the tail and eight V-shaped white marks along the side. A related hornworm is a tobacco hornworm with a red horn on the tail and seven white diagonal lines with a black border. Hornworms feed on leaves, stems, and fruit […] More
Slugs and snails are soft-bodied wormlike animals, members of the mollusk zoological group. Snails have coiled shells. Slugs have no shells. Slugs and snails chew irregular holes with smooth edges in leaves, stems, and ripening fruits of vegetables and other succulent plants. Control slugs and snails by handpicking, traps, and barriers. Good Products for Pest […] More
The cucumber beetle is an oblong greenish-yellow beetle with black spots or stripes on its wing covers. The cucumber beetle is about ¼ inch long. Cucumber beetles feed mainly on members of the cucurbit family—cucumbers, melons, and squashes—and also asparagus, early beans, corn, eggplant, peas, potatoes, and tomatoes. They attack seedlings feeding on young shoots […] More
Leafhoppers are wedge-shaped, slender, greenish, yellow, or brown translucent winged insects 1/10 to ½ inch long. Nymph leafhoppers are pale green wingless insects but otherwise look like adult leafhoppers. Leafhoppers have piercing mouthparts and suck the sap from many leafy crops such as lettuce and endive but they also attack potatoes and tomatoes. Good Products […] More
Stephen Albert