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).
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.
When using Quinclorac 75 DF, optimal control may not be achieved when treating crabgrass at the 2-4 tiller stage. Sequential applications may be necessary when treating during that stage. For best results, you should use a methylated seed oil with the Quinclorac 75 DF either before the 2nd tiller stage, or on mature crabgrass. The amount of time you will need to wait to reseed after applying Quinclorac 75 DF will depend on the type of seed you are using. Please refer to the seeding chart on p. 11 of the product label for specific timing.
Quinclorac 75 DF is not labeled for torpedo grass. However, Drive XLR8 would be a better option.
Quinclorac 75 DF should not be applied to exposed feeder roots of trees, ornamentals or within the dripline of trees and other ornamental species.
If the Marathon turgrass you have is a Tall Fescue seed blend then yes, Quinclorac 75 DF Herbicide would be safe to apply as Tall Fescue is a tolerant turfgrass per the product label. For spot treatment of weeds, it is recommended to use a MSO surfactant for better adhesion and faster burndown of weeds.
Quinclorac 75 DF Herbicide comes included with a measuring device that should assist with the precise amount, if you do not have the measuring cup, you will need a scale to measure it as it is done by weight and not volume as a dry product. Please refer to the product label for application rates and instructions, and use as directed.
The manufacturer of Quinclorac 75 DF Herbicide suggests not storing diluted solution for more than 24 hours to avoid losing efficacy.
The product label for Quinclorac 75 DF does not restrict applications during transition. However, since Quinclorac 75 DF may yellow hybrid Bermudagrass, and Bermuda in general is more sensitive during transition, we recommend that you wait until the Bermuda is fully green before applying this herbicide. Quinclorac will be most effective when air temperatures are around 60-85 degrees and there is good soil moisture, so those conditions may not exist until the Bermuda is fully green. You can add some chelated iron or liquid nitrogen fertilizer when using Quinclorac 75 DF on hybrid Bermuda to help reduce risk of discoloration, per the product label.
Quinclorac 75 DF Herbicide is not labled to kill chickweed. We do have alternative products here depending on your turfgrass type.
Per the product label, if soil is dry before a Quali-Pro Quinclorac 75 DF application, irrigation of the turfgrass may improve weed control. For best results, DO NOT water or irrigate for 24 hours following the application. Irrigate the treated turfgrass with atleast ½ inch of water 2 to 7 days after application if no rainfall is received within that period.
Depending on how many square feet the 4 gallons of mixed solution covered, you may need to do a repeat application for better weed control. Per the product label, the mix rate is 0.73 oz per 1000 sq ft or 1 tbsp per gallon of water.
No, Quinclorac 75 DF Herbicide is not labeled to be applied to Bahiagrass, carpetgrass, St. Augustinegrass, Centipededgrass, Dichondra or lawns or turf where desirable clovers are present.
Please review the product label for more information and the Restrictions Section on page 7 for more limitations.
Quinclorac 75 DF is not labeled to control spurge at all. We would recommend Q4 Plus Turf Herbicide instead with also contains quinclorac and 3 other actives for broader weed control.
Quinclorac 75 DF would harm ground cover, including Periwinkle. We would recommend Grass Out Max as it is safe to kill grassy weeds in flowers, shrubs, broadleaf crops or other broadleaf plants.
Since the Quinclorac 75 DF is not typically spread in a hydroseeder, we recommend reaching out to the manufacturer, Quali-Pro for more information. Their phone number is 800.242.5562.
No, Quinclorac 75 DF is not labeled to control chickweed or spurge.
Please review our How to Treat Chickweed Guide and How to Treat Spurge Guide for more information.
Quinclorac 75 DF is not labeled to control oxalis. We would need to know the type of turfgrass(warm/cool season) your lawn is in order to make a selective herbicide recommendation.
Monterey Spurge Power list oxalis as one of the weeds it will control in warm and cool season lawns. Please refer to the product label for more information.
According to the product label, mix 1.0 to 1.25 fl. oz. in 2 gallons to 5 gallons of water per 1,000 sq. ft for Bluegrass, Fescue, Rye, Bent (excluding golf greens and tees), Bahia, Bermuda, and Zoysia.
We would nto recommend tank mixing Quinclorac 75 DF Herbicide with EndRun. Quinclorac requires the use of a surfactant tobe effective while EndRun does not
Yes, you can add a colorant dye to Quinclorac 75 DF to help see where you have sprayed.
