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Prime Source's Quinclorac 75 DF Select is a selective, post-emergent herbicide that can be safely applied to many types of turf to control a variety of broadleaf and grassy weeds. This crabgrass killer herbicide can be applied to both residential and non-residential turf. Quinclorac 75 DF Select can be applied from seven days prior to seeding and up to twenty eight days after selected weeds have emerged. The use of a methylated seed oil, such as Duo Stick Select is recommended to greatly enhance the effectiveness of the product.
The Quinclorac 75 DF Select is a herbicide that is used for cool season turfgrasses. It can be used for both residential and non-residential areas in a wide range of turf species. This herbicide is great to use for post emergence control of barnyardgrass, crabgrass, blackmedic, clover, dandelion, annual foxtail, common slander and thymeleaf speedwell.
For use in California: Biotypes of large and smooth crabgrass in California have shown varied response to this product. If control failure occurs following a full or split application, DO NOT reapply this product. Change to a herbicide with a different mode of action.
Product Documents
| Active Ingredient | Quinclorac 75% |
|---|---|
| Target pests |
Broad-leaf and Grassy Weeds, Crabgrass, Barnyard-grass, Foxtails, Clover, Daisy, Dandelion and others * See label for compete list |
| For use in |
Commercial & Residential: Multi-Family Buildings, Military Facilities, Parks, Airports, Roadsides, Schools and others * See label for complete list |
| Application |
0.162 - 0.367 oz. per 1000 square feet Do not mow two days before or after treatment * Use a Surfactant to Increase Effectiveness * See label for complete application instructions |
| Pet safe | Yes, if used as directed on Label |
| Formulation | Professional Product |
| NOT FOR SALE TO | AK, HI, NY |
| Shipping Weight | 1.15 lbs |
| Manufacturer | Prime Source (Mfg. Number: QUIN SEL) |
| UPC | 794504353860 |
| EPA Registration | 89442-25 |
Weeds Controlled or Suppressed by Quinclorac 75DF Select:
Barnyardgrass, Bindweed (field), Clover (hop), Clover (red), Clover (white), Crabgrass (large), Crabgrass (smooth), Daisy (English), Dandelion (common), Dollarweed, Foxtail (giant), Foxtail (green), Foxtail (yellow), Geranium (Carolina), Kikuyugrass, Black Medic, Morning Glory spp., Signalgrass (broadleaf), Speedwell (common), Speedwell (slender), Speedwell (thymeleaf), Torpedograss, Violet (wild).
Quinclorac Select 75 DF Herbicide may be applied post emergence to residential and nonresidential turfgrasses (refer to Table 1) for the control of many broadleaf and grass weeds. Examples of such sites include, but are not limited to: grounds or lawns around residential and commercial establishments, multi-family dwellings, military and other institutions, parks, airports, roadsides, schools, picnic grounds, athletic fields, houses of worship, cemeteries, golf courses and sod farms.
Quinclorac Select 75 DF Herbicide is absorbed by foliage and roots and translocated throughout the plant. The control symptoms exhibited by broadleaf weeds include leaf and stem curl or twisting, and chlorosis. Susceptible grasses demonstrate stunting, chlorosis, and gradual reddening followed by necrosis and death. Refer to Tables 1, 2 and 3 for turfgrass tolerance and susceptible weed species.
APPLICATION:
Note: Please see Product Label for complete list of Application Rates and Mixing Instructions.
| 5 stars | 3 | |
| 4 stars | 0 | |
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| 1 star | 0 |
This Product Works
By Patricia on 03/19/2021
Knocks out post emergent crab grass
By Mark on 08/19/2022
Does an amazing job for spot treatment of post emergent crab grass. Better to avoid this issue with pre-emergent treatment, but when all else fails Quinclorac takes care of the problem, with crab grass dying within 1-2 weeks of application.
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5 of 5 people found this review helpful
Works great
By Dave on 06/03/2022
Started out using this for crabgrass but have since been using it for spot treating weeds. It works great on both. I fought crabgrass for a long time until finding Quinclorac and now the rest of the weeds get the pleasure of meeting it too.
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1 of 1 people found this review helpful
Prime Source Quinclorac 75 DF Select Herbicide can be used on established bermudagrass, annual bluegrass, Kentucky bluegrass, buffalograss, tall Fescue, annual ryegreass, perennial ryegrass, and zoysiagrass.
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20 of 20 people found this answer helpful
No, Prime Source Quinclorac 75 DF Select Herbicide cannot be used on St. Augustine grass.
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10 of 11 people found this answer helpful
I need a professional strength post emergent herbicide as the commercially available herbicides at lowes and home depot wont kill foxtail. Professional sevices are price gouging us here in NY. I will buy this product asap if it is non regulated in NY. Thanks Robert
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2 of 2 people found this answer helpful
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2 of 2 people found this answer helpful
Prime Source Quinclorac 75 DF Select Herbicide should not be applied to centipedegrass per the product label.
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2 of 2 people found this answer helpful
Prime Source Quinclorac 75 DF Select Herbicide
Rating: 5 (3 Reviews / 9 Q&A)
