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.

Brown patch is a common turfgrass disease caused by the fungus species Rhizoctonia. Irregular, circular patches of dead grass leaves and stems appear in infected lawns and can be from a few inches to several feet wide. Fescue lawns are especially susceptible, but brown patch can infect both warm- and cool-season lawns. Most damage occurs in the warm summer months.

Copper Spot is a fungal disease that impacts Bentgrass lawns. It appears as small pinkish-orange to copper spots that are 1 to 3 inches wide and eventually enlarge and darken. Grass blades within the "spots" are dead; however, grass in the center of circles may recover, creating rings.

Dollar Spot is a fungal disease that appears as small tan blotches with darker brown borders, sometimes in an hourglass shape, on grass blades.  The grass will die in small, circular spots 4 to 12 inches wide. The smaller spots can fuse together into larger areas, reducing a lawn's aesthetic quality and causing a decline in turf vigor. It is most troublesome from early to late summer.

Red Thread is a fungal disease that affects turfgrass in cooler, more humid conditions, particularly in spring and fall. Red Thread gets its name from the pink to red antler-like structures (sclerotia) that form at the end of the infected grass blades. As the disease progresses, small (4 to 8 inches), circular dead patches with a pinkish or tan cast appear in the lawn. It most commonly affects Kentucky Bluegrass, Perennial Ryegrass, and Tall Fescue.

Summer Patch is a turfgrass disease caused by the fungus Magnaporthe poae. It causes grasses to form light green patches up to 24 inches wide that later turn a reddish-brown. Some patches may have circles of green grass in the center, sometimes called "frog eyes." Summer Patch is very dangerous for Kentucky Bluegrass, Annual Bluegrass and Creeping Red Fescue lawns.

Billbugs are turfgrass pests that damage lawns throughout the summer. Adult Billbugs are small weevils, about 1/3 inch long. They have a distinctive downward-sloping snout, and two-clubbed antenna atop their head. However, it is the white, legless Billbug Grub, or larvae that does the primary damage to turf.

Chinch Bugs are tiny black bugs with folded white wings. A chinch bug is about 1/5 of an inch long. Nymphs are born yellow, then turn red with a light-colored band across the abdomen.

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.

The adult European Crane Fly looks like a large mosquito with longer legs. Larvae are sometimes called "leatherjackets" because of their tough exterior. The adults are often called "Mosquito eaters”, but do not actually eat mosquitos.

Mole Crickets are thick, brown Grasshopper-like insects, roughly 1½ inches long, with shovel-like front legs that dig easily through soil. Mole Cricket damage to lawns and flowers is seen as tunnels through soil, eaten roots and dead turf.

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.

You will see whiteflies on plants as tiny (1/16 inch), white, four-winged, fly-like insects that usually congregate on undersides of leaves. White flies often swarm in clouds when disturbed.

Lawn Grubs, often called White Grubs, are the immature form of different Scarab Beetles, such as Japanese Beetles, June Bugs (Beetles) or European Chafers. These white, C-shaped creatures have soft bodies with legs near the head. Most Scarab Beetles have a one-year life cycle; June Beetles have a three-year cycle. Timing varies by beetle species and region, but generally adults emerge from the soil from mid May-August, and mate and lay eggs from 2-3 weeks thereafter.