Yes, Quinclorac 75 DF Herbicide will damage your roses. You can spot-treat with Roundup and put down a pre-emergent like Hi-Yield Herbicide Granules to prevent the crabgrass from coming back. Another option for selective grass control around ornamental plants like roses is Grass Out Max
The manufacturer of Quinclorac 75 DF Herbicide suggests not storing diluted solution for more than 24 hours to avoid losing efficacy. It would not be tank mixed with Q4 as it contains quinclorac as well and does not need a surfactant.
Per the product label: You should be able to safely mix the Quinclorac 75 DF with 2,4-D, triclopry, MCPA, MCPP, Three way products or other broadleaf herbicides. to get a wider range of weed and weedy grass control with no issues. As with any chemical mixture, be sure to do a tank-mix test first to make sure no clumping or mixing issues occur and spot test a small area to be sure no undesirable effects occur from the mixture and use. Always follow the most restrictive label of the two for use and refer to each product label for complete instructions regarding tank mixing.
Quinclorac 75 DF Herbicide is labeled for Wild Violets at the rate of 0.367 oz per 1000 sq ft. Apply in atleast 1 gallon spray mix per 1000 sq ft to ensure thorough, uniform spray coverage. For best results, a methylated seed oil surfactant like Duo Stick should be tank mixed with the Quinclorac 75DF.
Quinclorac 75 DF Herbicide has a shelf life of about 3 years once opened if stored in a cool, dry place (away from extreme temperatures).
No, Quinclorac 75 DF is not for use on St. Augustine turfgrass.
Please view our St. Augustine Lawn Guide for information and recommendations.
Quinclorac 75 DF has a shelf life of about 3 years from the date of purchase when stored properly (out of direct sunlight and away from extreme temperatures in a cool, dry place).
Unfortunately, to reverse the effects of a product such as Prime Source Quinclorac 75 DF Select Herbicide it would need to be done immediately after the application.
Sometimes using an activated charcoal product and watering the area may help within the first couple of hours after the application. Otherwise, only time will tell the extent of the damage.For torpedograss, Quinclorac 75 DF Herbicide is advised to be applied at the rate of 0.245 oz in 1 gallon of water per 1000 sq ft doing 3 sequential applications at 14-21 day intervals. Per the product label, the addition of a Methylated Seed Oil Surfactant is needed for best results at the rate of 2 tbsp per gallon of water or 1.5 pints of MSO per acre.
The timing can vary when weeds will start to show signs of dying or when they will die off completey when applying a post emergent. This can vary due to the weather conditions, the type of weed it is, how established the weed is, the specific active ingredients and the rates applied. Generally we advise to allow 1 to 3 weeks to begin seeing results before any follow up applications.
Quinclorac 75 DF Herbicide should not be applied to a saturated lawn, but it can be applied 24 hours after rain. You should not water your lawn within 24 hours after applying, or apply when any rain is expected in the next 24 hours. You can refer to the manufacturer's product label for complete application instructions.
Prices of herbicides, including Quinclorac 75 DF Herbicide, fluctuate due to fair market value.
Unfortunately, we do not carry a herbicide that can control foxtail and crabgrass in a deer plot and Quinclorac 75 DF Herbicide is not labeled safe on Egyptian Wheat.
We can only recommend spot treating with a non-selective like Avenger or contacting your local extension office or department of agriculture.
Quinclorac 75 DF Herbicide targets large and smooth crabgrass when used as directed.
We apologize but we cannot ship to Canada or anywhere outside of the United States.
