QuinKill Max Crabgrass and Weed Killer can be reapplied 2-3 weeks after first treatment. It is normal not to see a burn down just yet. This can tak at least 2 weeks to occur.
For broadcast applications mix 64 fl ozs of product per acre.
For Spot applications, mix 1.45 fl ozs per 1000 sq ft. The amount of water is determined on how much it takes to cover a 1,000 sq ft area.
One Pint controls up to 10,000 sq ft or 1/4 of an acre
One Quart controls over 20,000 sq ft or 1/2 of an acre
One Half Gallon controls over 40,000 sq ft or 1 acre
Use 1.5 oz (3 Tbsp) per gallon for spot treatment
You would want to keep pets out of the area while treating. Once QuinKill Max Crabgrass and Weed Killer has completetly dried, it is safe for them to return.
Per the product label on QuinKill Max Crabgrass and Weed Killer, if soil moisture is not sufficient prior to application irrigation may improve weed control. For best results, DO NOT water or irrigate for 24 hours after application. If rainfall does not occur in 2 to 7 days after application, irrigation of at least 1/2 inch is desirable.
Tenacity is typically the choice for a pre-emergent herbicide needed when seeding or overseeding a lawn, particular tall fescue or other cool-season grasses. For QuinKill Max, you will need to consult the chart on pages 15-16 of the product label for appropriate timing depending on the type of turfgrass. Some grasses are more tolerant of this herbicide than others.
QuinKill Max Crabgrass and Weed Killer has a three year shelf life from the date of purchase if stored in a cool, dry place away from extreme temperatures. Once mixed with water and surfactant it should be used within 24 hours of mixing
The Hi-Yield Crabgrass Weed Control and Dimension 2EW are primarly pre-emergent herbicides and will not control existing crabgrass. Dimension 2EW will have early post-emergent control of crabgrass, but only until about the second-tiller leaf stage. For better post-emergent control of crabgrass, we would suggest using Quinkill Max, which contains quinclorac. Quinclorac is the most popular post-emergent herbicide for crabgrass on cool-season turf. Be sure to use a surfactant such as Prime Source Duo Stick with QuinKill Max. This surfactant greatly helps reduce surface tension of applications to maximize absorption of the herbicide into the target plants. Post-emergents will work best on young, actively growing plants.
QuinKill Max Crabgrass and Weed Killer is very effective on Torpedograss. You would mix 1.5 oz ( 2 1/2 TBS) per gallon water. Be sure to make the application when temps are above 65 degrees and below 85 degress.
As with most herbicides like QuinKill Max 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 sqft, so you can apply 1.45 fluid ounces in 1 gallon for spot treating. QuinKill can kill common dandelions but does state on the label Tank mix partner or sequential application required. Did you use a methylated seed oil surfactant which is required for use with this product? If you did not use a MSO with the product that could be the reason for not having success. Also the active ingredient in QuinKill is a slow kill can take up to 6 weeks to kill sprayed weeds when used as directed.
Yes, QuinKill Max is safe to use on buffalograss.
QuinKill Max Crabgrass and Weed Killer is usually rainfast within a couple of hours, but should not be applied within 24 hrs of rainfall for best results.