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  • Turf

    MSU Extension’s focus on turfgrass management brings together faculty, specialists, and educators who work with both professional turfgrass managers and homeowners in managing turfgrass in an environmentally responsible manner.


  • Pesticide Applicator Training

    This course is designed for those who are studying to take the Michigan Department of Agriculture and Rural Development (MDARD) Restricted Use Pesticide (RUP)Exam or for those who need a refresher on safe pesticide handling. The course material follows the National Pesticide Core Manual. Those who complete the course can receive 12 RUP credits.

  • 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.

  • Goosegrass

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

  • 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.

  • Corn Speedwell

    Corn speedwell is an upright, clumping winter annual that produces small purple flowers in the spring. The lower, non-flower, portion of the plant has leaves that are round-to-oblong with rounded teeth on the margin in an opposite arrangement.

  • Yellow Hawkweed

    Yellow 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.

  • 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).

  • 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.

  • Common Mallow

    Common mallow most often establishes along culverts, fencelines and near foundations. Common mallow forms a clump whorled branches that do not root where they touch the ground.

  • 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).

  • Necrotic Ring Spot

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

  • Dollar Spot

    Dollar spot is characterized by round, bleached-out or straw-colored spots, ranging from the size of a quarter to the size of a silver dollar. Spots appear as sunken areas in the turf, especially low mown turfgrass.

  • Black Medic

    Black medic is a low-growing creeping weed that is well adapted to many lawn situations. In particular, black medic can be an indication of low soil nitrogen. It is most common to find medic in full sun , low maintenance situations. Black medic and white clover grow in similar situation and are often found growing together.

  • 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.

  • Smut

    The smut diseases are important on many Kentucky bluegrass cultivars and higher cut turfgrass.

  • 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.

  • Slime Mold

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

  • Common Chickweed

    Primarily a winter annual, common chickweed is frequently found growing in the mulch skirts of shade trees. In general, common chickweed prefers shaded sites with moist soils. The vegetation forms mounds that are 3-7 inches tall. The delicate white-to-pink flowers appear early in the spring. Plants can persist in protected areas well after flowering.

  • Heal All

    Heal All is a low growing, spreading, perennial of the mint family. It has very distinctive 'puckered' leaves with an opposite arrangement on square stems.

  • 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.