Annual Bluegrass Weevils are serious pests of close-cut annual bluegrass. Adults are relatively small dark gray Beetles (about 1/8 inch), covered with a yellowish fine hair that falls away as the Weevil matures. Larvae are white, C-shaped grubs with a brown head that eat such plants as rhododendrons.
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Armyworms
Army worms are light brown to dark tan, mostly hairless Caterpillars (Moth larva) with yellow or brown stripes that run the length of their 1½ to 2-inch long bodies.
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Cutworms
Cutworms are large, up to 2-inch long, hairless caterpillars, the larvae of night-flying moths. Cut worms are a major pest to vegetable gardens, flowers and lawns in the United States. They curl into a "C" shape when disturbed.
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Grasshoppers
Grasshoppers are 1-to 2-inch long insects with powerful legs. They can be green, reddish-yellow or brown. In addition to their large hind legs, they have prominent jaws and fully developed wings. Grasshoppers are voracious feeders, consuming approximately one-half of their body weight per day.
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Sod Webworms
Sod Webworm is a pest especially of bluegrass lawns. The adult is gray-tan, small moth (½ to ¾ inches in length) that flies in an irregular zig-zag pattern over the turf, usually late in the day near dusk. Female moths can deposit as many as 200 eggs. The larvae themselves are ¼ to ¾ inch long gray or light brown caterpillars with black spots. They hide during the day in silky white tubes in the soil, and feed on the turf grass at night.