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Dallisgrass

How to Get Rid Dallisgrass

Dallisgrass is a grassy perennial weed that is commonly confused with crabgrass. Even though they may look similar, the treatment for them is much different. Dallisgrass can be very hard to control and get rid of and the first and most important part is correct identification.

Characteristics

  • yellow green color with a white vein that runs down the middle of the leaf
  • stiff leaves (compared to softer crabgrass leaves) and a hairy base  
  • tend to grow in circles from the center in loose bunches 
  • flower head has 3-6 spikes
  • seeds are black compared to the whiter crabgrass seeds

Treatment

Selective Herbicides

  • MSMA is one of the most effective chemicals for treating dallisgrass but it is restricted for commercial use only.
  • There are several other selective herbicide chemicals that work but it depends on your grass and timing of application.
  • For warm season grasses such as bermudagrass and zoysiagrass, you want to use products such as:

Revolver, Monument 75 WG, Certainty, and Tribute Total

  • Tall fescue is a cool season grass that can be treated with:

Fusilade II, Ornamec 170, and Ornamec Herbicide + Aqua-Zorb Wetting Agent

 

Non-Selective Selective

  • With many grassy weeds, spot treatment with non-selective herbicides is as simple yet very effective method.
  • Only apply to trouble areas because these chemicals will kill any vegetation with which it contacts.
  • Glyphosate is a very effective chemical and is found in several products.
  • Apply when there is a low chance of rain to avoid runoff of chemical to other vegetation.
  • Recommended Products Gly Pho-Sel Pro Dry 75 SGEraser Max, and Roundup Quikpro

Prevention

  • Because it is a perennial grassy weed, it will be a little bit harder to treat with pre-emergent chemicals
  • Apply aggressively in spring or early summer before the seeds germinate
  • The seeds usually germinate when the soil temperature is in the 60-65 degree range
  • Recommended Products:   Dithiopyr 40 WSB, Dimension 2EW and Surflan Pro

 

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  1. Revolver Herbicide

    Starting at: $259.32

    Revolver Selective Herbicide may seem expensive but is effective on cool-season grasses at low use rates. The active ingredient is foramsulfron, a sulfonylurea type of active removes cool-season grasses from tolerant warm-season grasses. This post-emergent herbicide may be used to remove cool-season grasses from bermudagrass greens, tee boxes, collars and approaches surronding bermudagrass greens.

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  2. Target MSMA 6 Plus

    Target MSMA 6 Plus is a post emergent herbicide with 47.6% MSMA and a surfactant (wetting agent) combined. No additional surfactants are necessary. It is an excellent choice for crabgrass control as well as dallisgrass, johnsongrass, chickweed and other weeds.

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  3. Manuscript Herbicide + Adigor Adjuvant

    Manuscript Herbicide is a highly active post-emergent, systemic herbicide. It controls mature grasses such as tropical signalgrass, large and smooth crabgrass, bull paspalum, dallisgrass, bahiagrass, seashore paspalum, tropical carpetgrass, torpedograss and more in certain warm-season grasses on golf courses, sod farms, residential and commercial lawns, and sports turf. It works on bermudagrass, zoysiagrass and St. Augustinegrass turfgrass species.

    As a systemic herbicide, Manuscript is absorbed through the foliage. It translocates to the growing points of stems and leaves. It works fast on tough mixed grasses, regardless of growth stage, including mature weeds.

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  4. Ornamec 170 Grass Herbicide

    Ornamec 170 Grass Herbicide is a selective systemic weed killer, controlling perennial and annual grassy types of weeds. Ornamec 170 with 1.7 % Fluazifop-P-buytl with its combined surfactant is perfect for a small area to treat such as landscape beds. This post-emergent herbicide is applied as an "over the top" application for unwanted grasses without harming ornamental plants. Ornamec 170 stops such grasses as goosegrass, crabgrass, quackgrass, johnsongrass and many more.

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  5. Celsius WG Herbicide
    $135.00

    Celsius WG Herbicide, got it's name from "Celsius (°C) ", temperature degree. Celsius WG Herbicide can be applied when the weather is unbearably hot, even when temperatures exceed 90 degrees (reducing risk of phytotoxicity). As a post-emergent herbicide it works very well on southern grasses such as St. Augustine, without fear of damaging turf. Celsius WG is a selective herbicide providing a broad spectrum of weed control with it's three active ingredients. Learn More

  6. Tribute Total
    $385.95

    Tribute Total Herbicide

    Tribute Total by Bayer is a post-emergent, broad-spectrum herbicide to control 55 different broadleaf weeds. These include many annual and perennial grassy weeds including dallisgrass, purple and yellow nutsedge, and kyllinga. Use Tribute Total as an aid for removing cool season grasses that have been overseeded from Bermudagrass.

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  7. Certainty Herbicide
    $90.41

    Certainty Turf Herbicide is a selective herbicide for control of annual and perennial grass and broadleaf weeds in highly managed turf, ornamental and native grass sites. Certainty Turf Herbicide with 75.0% Sulfosulfuron, controls tough weeds in residential and commercial turf. Look to kill with certainty in warm season turf, sedges (both yellow and purple), Kyllinga and other undesirable grasses and broadleaf weeds.

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  8. Monument 75WG Herbicide

    Starting at: $289.90

    Monument 75WG herbicide is great for turf management, controlling major sedges and more than 40 listed weeds on turf. This broad spectrum herbicide keeps turf looking good soon after its application by inhibiting weed growth. Monument ensures a smoother transition to bermudagrass by removing over-seeded, cool-season grasses.

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  9. Fusilade II Herbicide

    Fusilade II Turf and Ornamental Herbicide

    Fusilade II is a convenient and perfect choice to kill unwanted grass without injuring desirable broadleaf plants, conifers, newly emerging ornamentals and recent transplants. Fusilade II Turf and Ornamental Herbicide is a post-emergent herbicide that works on selected unwanted annual and perennial grass weeds in landscape and turf areas. As a fast acting and systemic herbicide, it moves all the way to the roots, shoots, stolons, rhizomes and growing points of treated plants. Use Fusilade II in such areas as around trees, shrubs and groundcovers to get rid of unwanted grassy weeds.

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  10. Ornamec Herbicide + Aqua-Zorb Wetting Agent

    Gordons Ornamec Over-The-Top Grass Herbicide is a selective post-emergent systemic herbicide that will provide an excellent control over unwanted grasses in and around groundcovers, shrubs, trees, landscape beds, container yards and grower nursery fields. It is a specially formulated liquid herbicide that uses Fluazifop-P-butyl as its active ingredient to help control unwanted annual grasses and perennial grasses such as panicum, crabgrass, goosegrass, foxtail, sandbur, barnyardgrass, bermudagrass, quackgrass, torpedograss and johnsongrass. It also offers selective removal of bermudagrass without injury to tall fescue and zoysia turf. It can treat a majority of ornamentals on the label with over-the-top application. It may be used around newly-emerging plants as well as transplants and it guarantees fast and efficient action. Comes with a mini bottle of surfactant. Learn More

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