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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. quikpro roundup box

    Roundup QuikPro Non-Selective Herbicide Box of Five 1.5-Ounce Packets. It is very effective against most green vegetation, including hard-to-control plants, such as brush, poison oak and thistle. It is also the herbicide of choice for use around homes and gardens.

    The Roundup QuikPro Herbicides kills very quickly because of the dual active ingredients : Glyphosate and Diquat.

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  2. Eraser Max Herbicide-Gallon

    Starting at: $27.25

    Eraser Max is a concentrated formula of glyphosate and imazapyr that is very effective against many weeds, vines, grasses and trees. A single application will kill weeds for up to a year. Eraser Max is for use outside on non-crop areas, bare ground for total vegetation control, and spot treatment for weeds, grasses, vines and trees. It is perfect for gravel paths, fence rows, around barns and farm buildings.

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  3. Gly Pho Sel Pro Dry 75 SG - 5 lbs

    Starting at: $24.70

    Agrisel's Gly Pho-Sel Pro Dry 75 SG with 75% glyphosate, is a multi-purpose total vegetation weed killer. Gly Pho-Sel Pro Dry is a high quality, fast acting and systemic granular that starts working within hours. It kills on contact, burns down, and kills the roots as well, providing quick total vegetation and weed control.

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