• Yellow Woodsorrel

  Yellow woodsorrel is a common summer annual in cool-season turf. Yellow woodsorrel is one of the latest germinating summer annual weeds. Often, infestations of oxalis can be associated with spring-timed broadleaf weed control applications.

• Wild Carrot

  One of the two most common weeds of Midwestern roadsides. Wild carrot (Queen Anne's-lace) is a biennial that forms a carrot-like taproot that allows it to survive the harsh, gravely, nutrient deficient conditions that it thrives in.

• Yellow Rocket

  Yellow rocket is a rosette-forming winter annual that is usually associated with bare, disturbed soil or new establishments (prefers nutrient-rich, medium-textured soils).

• Summer Patch

  Summer patch first appears in the warm weather of summer as yellow to bronze-colored, irregular-shaped patches ranging from 6 in. to 3 ft (15.3 cm to 1 m) in diameter.

• Fairy Ring

  Fairy rings tend to grow in circle shaped patterns through the organic matter in the soil, mat, and thatch, first appearing as dark green circular rings or arcs in the turf.

• Brown Patch

  Brown patch appears as circular patches, ranging from a few inches to several feet in diameter.

• Powdery Mildew

  Turf affected by the disease have a grayish white cast, with initial symptoms appearing as white patches on the leaf blade.

• Crown Rot Anthracnose

  Anthracnose can occur as both a foliar infecting and crown infecting disease.

• Field Horsetail

  Field horsetail is most often a weed of landscape beds and low-lying areas. Horsetail can survive in turf, but often will not persist with routine mowing.

• Prostrate Pigweed

  Prostrate pigweed is a native mat-forming summer annual weed that invades thin, damaged or under-fertilized lawns. It is common in areas with disturbed soils or neglected areas. Prostrate pigweed lacks the hairs common to redroot pigweed and has smooth leaves.

• Slime Mold

  Slime molds are non-pathogenic fungi that occasionally dwell on many different turfgrass species.

• Yellow Patch

  Yellow patch, also known as cool season brown-patch, is a Rhizoctonia pathogen similar to that of brown patch.

• White Clover

  White clover is one of the most common weeds of turfgrass. It is frequently included on lists of difficult-to-control weeds. White clover, as with all legumes, has the ability to survive under low soil nitrogen conditions. It can be identified by the three leaflets attached to one petiole.

• Creeping Speedwell

  Creeping speedwell is a low growing perennial that prefers shade, moist soils, good fertility and a low mowing height.

• Prostrate Spurge

  Prostrate spurge is a late-germinating, low growing, mat-producing summer annual. Spurge is very often found in un-irrigated bark mulch common to parking lot tree islands, crevices and boulevards.

• Poison Ivy

  Poison ivy is a trailing or climbing vine common to woodlots, naturalized areas, and property boundaries.

• Necrotic Ring Spot

  The pathogen attacks root systems in the spring and fall, and in the summer, infected plants begin to wilt in patches.

• Gray Leaf Spot

  Gray leaf spot is considered a problem on primarily perennial ryegrass and St. Augustinegrass. The disease first appears as tiny brown spots that enlarge and become oval or elongated.

• Redroot Pigweed

  Redroot pigweed is a summer annual broadleaf weed that is typically associated with new establishments and other areas of disturbed soil (compost piles, gardens).

• Yellow Nutsedge

  Yellow nutsedge is a persistent perennial weed of poorly drained soils. Yellow nutsedge is grass-like in its appearance with parallel leaf veination. The stem of nutsedge is triangular with leaves coming off each corner (three-ranked).