Foam surrounding a spittlebug Spittlebugs are the nymphs of insects called froghoppers. Adult froghoppers are small oval- to triangular-shaped insects ¼ to ½ inch in length. The adults can be green, tan, brown, or black. They can jump as much as 100 times their height, giving them the name froghoppers. They can also fly. Many
Squash vine borer 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.
Tarnished plant bug 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
Parsleyworm The parsleyworm is a very large, two-inch long, green caterpillar with yellow-dotted black bands across each body segment. It has a pair of orange horns that it can project to scare off enemies. The beautiful black-and-yellow swallowtail butterfly is the adult form of the parsleyworm. The parsleyworm eats the leaves and stems of carrot-family
Root weevil 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
Cutworms Cutworms are the larvae of several species of night-flying moths. The moths are brownish or gray with 1½-inch wingspans. The larvae are plump, gray or brown, hairless caterpillars often with shiny heads. Cutworms feed at night on young plants, usually severing the stem at or just below the soil line causing the plant to
Tomato hornworm 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 the tobacco hornworm with a red horn on the tail and seven white diagonal lines with a black border. Hornworms feed on leaves, stems
Snail feeding on lettuce leaf 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 can be as small as 1/8 inch to as large as 8 inches long. They can be gray, tan, green, black, yellow or spotted. The presence
Cabbage loopers Cabbage loopers are 1½ inches long caterpillars with two pale white stripes down the back, one on each side. Loopers have legs at the front and back and several more in the middle and so they move with a peculiar humpback or looping crawl. Loopers are the offspring of gray night-flying moths with 1½ to
Spotted cucumber beetle 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
