Virginia buttonweed - mat forming summer perennial broadleaf. Leaves are opposite and flowers are white with 4 lobes. Reproduces by heavy seed production. No single application provides control. Multiple applications are necessary starting in late April all the way to October.

Control options: Weed Free Zone, Trimec, Avenue South in April. Repeated MSM Turf or Celsius during summer. Spot treatments of glyphosate; hand remove large mats and dispose. Do not allow buttonweed to form mats. Can kill turfgrass.

Torpedograss - creeping perennial grass with sharply pointed white rhizomes. Most difficult grass to manage in southern turfgrass. Reproduces from stem fragments and rhizomes. No good option in St. Augustinegrass or centipedegrass.

Control options: Drive and other quinclorac products (bermudagrass, zoysiagrass) multiple apps needed; multiple applications of sethoxydim temporarily suppresses in centipedegrass; glyphosate spot treatments (centipedegrass and St. Augustine). Totally renovate and re-sod lawn with zoysia grass.

Dallisgrass - course textured, clumping perennial with short rhizomes - membranous ligule. Very competitive in drought stressed turfgrass.

Control options: Sethoxydim - repeated applications (centipedegrass); spot treatments of glyphosate (bermudagrass, St. Aug). Labeled quantities of MSMA purchased before 2010 (bermudagrass and zoysiagrass).

Dollarweed - creeping perrennial broadleaf weed. Petiole in the center of leaf, "umbrella like". Prefers moist soil and thin turfgrass.

Control options: MSM Turf (very effective) or repeated applications of Weed Free Zone, Weed B Gon, Atrazine, weed & feed with atrazine. Improve control by tank-mixing atrazine + Weed Free Zone or Trimec type products (St. Aug, centipede, zoysia) - make applications from November to April.

Common bermudagrass - creeping mat-forming perennial grass that produces stolons and rhizomes. Reproduces vegetatively and by seeds. Very invasive grass that out-competes most turfgrass species. Weed infests St. Augustinegrass lawns mowed too short. Sometimes called "wiregrass".

Control options: Repeated applications of sethoxydim (centipedegrass); Repeated applications of fenoxaprop (zoysiagrass); spot treatments of glyphosate (St. Aug); repeated applications by a licensed applicator of Prograss + atrazine provides suppression (St. Aug). Raise mowing height to 3" (St. Aug).

Dichronda (ponyfoot) - creeping prostrate perennial that roots at the nodes. Leaves resemble a pony's foot. Grows in thin poorly managed turf.

Control options: Weed Free Zone, Weed B Gon, and other Trimec herbicides are effective (for all southern turfgrass). Observe heat precautions with above herbicides; Atrazine (St. Augustinegrass, zoysiagrass and centipedegrass). Atrazine + Trimec type herbicides when applied from November to April. Improve turf cultural practices such as proper fertility, aeration, and correct mowing heights.

Purple and yellow nutsedge, green kyllinga - rapidly spreading grass-like perennial weeds. Purple nutsedge has deep green dagger shaped leaves and underground tubers connected by chains. Yellow nutsedge has pale green sharply tapered leaves and underground tubers that do not form chains. Green kyllinga forms weak rhizomes.

Control options: purple and yellow nutsedge - Halosulfuron (Sedgehammer and others) - safe for all southern turf. Basagran effective on kyllinga and yellow nutsedge (all southern turf). Basagran does not work on purple nutsedge. Spot treatment with Vexis - all lawns.

Purple Nutsedge	Yellow Nutsedge	Green Kyllinga

Crabgrass and goosegrass - summer annual grasses infesting turfgrass statewide. Crabgrass germinates as early as late January in south Louisiana/early to mid-February in north Louisiana. Goosegrass often infests in compacted soils. Both species have membranous ligules. Goosegrass is more difficult to control.

Control options: preemergence herbicides in late winter (February/early March): dithiopyr, pendimethalin, (all southern turf). Postemergence: Drive (bermudagrass, and zoysiagrass) - quinclorac is not effective on goosegrass; sethoxydim (centipedegrass): Acclaim (zoysiagrass); spot treat with glyphosate (St. Augustinegrass).

Crabgrass	Goosegrass

Winter Broadleaves - begin germinating in late-September and are very common in thin turfgrass. Winter weeds flower in late flower in late winter and early spring are usually very heavy seed producers.

Control options: preemergence: September applications of dithiopyr, prodiamine; repeat in November. October application of atrazine (all southern turf).

Postemergence from November to April: Atrazine + Weed B Gon or Weed Free Zone - highly effective when applied November to April (all southern turf/dormant bermudagrass). atrazine (all southern turf/dormant burmudagrass, Weed B Gon, Weed Free Zone, Trimec, and other three-way herbicides, MSM (metsulfuron) - highly effective (all southern turf). Annual bluegrass - atrazine; - Late postemergence: Weed & Feed (most turfgrass species) in April. Difficult to control.

Wild Geranium	Sow Thistle	Lawn Burweed

Dandelion	White Clover

Indian Mock Strawberry

Common lespedeza - low growing, mat forming summer annual legume. Stems becoming woody as plant matures. Very difficult to control. Early to mid-summer applications are more effective than fall applications.

Control options: repeated apps of metsulfuron (MSM Turf) or Avenue South - all southern lawn grasses. Celsius (all southern turfgrasses except carpetgrass)