QuinKill Max Crabgrass and Weed Killer is not labeled to control dallisgrass.
QuinKill Max Crabgrass and Weed Killer is labeled for use as spot application in established Bermuda turf as directed. As with most herbicides, the exact volume of water is not very important, you just need to be sure you are getting the correct amount of product on a specific area. Generally speaking 1 gallon covers 1000 sq ft, so you can apply 1.45 fluid ounces in 1 gallon for spot treating. It is recommended to apply with a methylated seed oil surfactant. It offers a kill to listed weeds and takes up to 6 weeks to kill sprayed weeds when used as directed.
QuinKill Max Crabgrass and Weed Killer is not labeled for plantain.
QuinKill Max Crabgrass and Weed Killer will kill grassy weeds like crabgrass, foxtail, signalgrass, torpedograss, and others listed on the product label. You may refer to the product label for a complete list.
QuinKill Max Crabgrass and Weed Killer is not labeled to be used where animals would graze. We would recommend waiting an entire season before any grazing if applied. Pastora is the only product we carry that can be used for large crabgrass in bermudagrass pastures but it is not labeled for home lawns. It would be best to keep horses from grazing in the area that is your lawn if you need to treat the crabgrass.
We do offer Trimec 992 that can be used for selective post control of many broadleaf weeds like SpeedZone. Always perform a tank mix test first and try in an inconspicuous area prior to full lawn application. Please refer to the product label for each herbicide that you will apply to your lawn for complete mixing and applications.
QuinKill Max Crabgrass and Weed Killer is labeled to eradicate crabgrass.
According to the QuinKill Max Crabgrass and Weed Killer product label, this product can safely be applied to common Bermudagrass, annual Bluegrass, Kentucky Bluegrass, Buffalograss, Tall Fescue, annual Ryegrass, perennial Ryegrass and Zoysiagrass. It should NOT be applied to Fine Fescue (unless part of a seed blend), Bahiagrass, Carpetgrass, St. Augustinegrass, Centipedegrass, Dichondra, or lawns or turf where desirable clovers are present.
We would recommend either the name brand Drive XLR8 or the low-cost generic Quinkill Max Crabgrass and Weed Killer. They are both great options to control Speedwell along with Crabgrass and is safe for Bermudagrass. These two herbicides have the same active ingredient, just made by different companies but provide the same level of results.
QuinKill Max Crabgrass and Weed Killer along with the Duo Stick Surfactant could be used to control torpedograss in bermuda as well as many other listed weeds.
QuinKill Max is not labeled to control Sisyrinchium. Atrazine is often used to control this plant in St. Augustine or Centipede turf. In other warm-season turf, you may have success with herbicides containing Trimec such as Fertilome Weed Free Zone. You can also always use a non-selective herbicide such as RoundUp QuikPro and just spot treat the areas where you find the blue-eyed grass.
Per the product label, "The use of QuinKill Max Crabgrass and Weed Killer before or after seeding or over-seeding a turf area will not significantly interfere with the turf grass seed germination and growth of those grass types identified as tolerant or moderately tolerant in Table 1. Consult Table 4 for timing of applications concerning any seeding, overseeding or sprigging situation".
QuinKill Max Crabgrass and Weed Killer is labeled to eradicate crabgrass. Some species of bentgrass are more tolerable than others. Please refer to the product label for more details on application and tolerance including Page 12.