• Orange Hawkweed

  Orange hawkweed is a creeping perennial of low maintenance turf, roadsides and native areas. It can be an indicator of low soil fertility or slightly acidic soils. Hawkweed spreads by stolons and rhizomes creating colonies that form patches.

• Brown Patch

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

• Red Sorrel

  Red sorrel is a perennial weed of low-maintenance sites characterized by dry, infertile and often low pH soils. Red sorrel will survive at neutral pH but is usually not as prevalent because the turf will be more competitive under these conditions.

• Bermudagrass

  Bermudagrass is a warm-season perennial that spreads by stolons (above ground runners). Bermudagrass is a not widely considered to be cold tolerant, however, several selections exist that can overwinter in Michigan.

• Perennial Sowthistle

  Perennial sowthistle is common in roadside and low maintenance turf and somewhat less common in landscapes. It prefers slightly alkaline or neutral soils, fine-textured, rich soils. Perennial sowthistle will not thrive on coarse sandy soils.

• Slime Mold

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

• Take-All Patch

  Take all patch is an important disease on bentgrass, particularly newly established stands of creeping bentgrass turf. The disease first appears in late spring or early summer, as a patch of bronze or bleached turf.

• Creeping Bentgrass

  Creeping bentgrass is a spreading cool-season perennial grass that is commonly used for golf course greens, tees and fairways. Like other grasses, bentgrass can be considered a weed when it is present in another species.

• Necrotic Ring Spot

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

• Poison Ivy

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

• Dandelion

  Common dandelion is a simple perennial (no branching) with a basal rosette that has deeply lobed leaves that generally point back towards the center of the rosette. Probably the most common weed in maintained turf.

• Green Foxtail

  Green foxtail is a clumping annual grass that commonly invades Michigan turfs. Young plants can be difficult to distinguish from other grasses like crabgrass. Green foxtail produces a characteristic 'foxtail'-like seedhead.

• Prostrate Knotweed

  Prostrate knotweed is a supreme indicator weed. Knotweed is the earliest germinating of all the summer annual weeds. Due to its early germination timing, knotweed is able to claim resources and invade damaged areas before other desirable grasses begin to grow.

• 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.

• Chicory

  Chicory is a simple (unbranched) perennial with a jagged fleshy taproot. The coarsely-toothed basal leaves are 6-8" long and form a rosette.

• Melting Out

  Symptoms of melting-out resemble leaf spot symptoms and these two diseases are often grouped together. Melting out however is a cool-weather disease where leaf spot is a warm-weather disease.

• Large Crabgrass

  Large crabgrass is a common invader of manicured turf. Large crabgrass has hairs on all surfaces. It can be identified by its light green appearance and swollen, zig-zag nodes.

• 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.

• Creeping Woodsorrel

  Creeping woodsorrel is a spreading perennial weed with a reddish-purple color that frequently roots at the nodes.

• Goosegrass

  Goosegrass is a warm season summer annual grassy weed that predominates in exposed, trafficked conditions.