Quincept Herbicide
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$324.08

Buy 2 or more: $320.66 each

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Average Rating

2.5 out of 5 stars Rating: 2.7

3 Reviews | 5 Q&A

Product Overview

Quincept Herbicide provides post-emergent control of over 200 broadleaf and grassy weeds. It contains a powerful combination of 3 active ingredients 2,4-D, Quinclorac, and Dicamba which effectively control unwanted weeds such as dandelion, black medic, chickweed, plantain, knotweed, oxalis, clover, thistle, crabgrass, foxtail, barnyardgrass, signalgrass, and more. It is perfect for late season rescue for weed escapes or as a clean-up for areas that did not receive a pre-emergent herbicide application in the spring. This product can be absorbed by both roots and foliage and translocated throughout the plant and is recommended for use on residential and non-residential turfgrasses, including lawns or grounds around residential and commercial establishments, parks, airports, roadsides, schools, picnic grounds, athletic fields, cemeteries, golf courses, and sod farms. Ideal for broadcast spray or spot applications. Available in 2.5-gallon jug.

Available Sizes:

  • Quincept Herbicide – quart
  • Quincept Herbicide – 2.5 gallon

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.

Features and Specs

Active Ingredient 2,4-D - 13.24% Quinclorac - 8.25% Dicamba - 1.38%
Target pests Dandelion, chickweed, black medic, knotweed, plantain, oxalis, clover, cocklebur, thistle, large and smooth crabgrass
For use in Residential and non-residential turfgrasses (grounds or lawns around residential and commercial establishments, parks, airports, roadsides, schools, picnic grounds, athletic fields, cemeteries, golf courses and sod farms).
Pet safe Yes, if used as directed on label.
Formulation Liquid.
NOT FOR SALE TO AK, CA, HI, PR
NY, VT (Restricted To Licensed Applicators Only)
Special Features Perfect for late season weed treatments.
Shipping Weight 24.40 lbs
Manufacturer Nufarm
UPC 191662012767
EPA Registration 228-531

Details

DIRECTIONS FOR USE

It is a violation of Federal Law to use this product in a manner inconsistent with its labeling. Read entire label before using this product. Use strictly in accordance with label precautionary statement and directions.

Do not apply this product in a way that will contact workers or other persons, either directly or through drift. Only protected handlers may be in the area during application. Keep people and pets out of the area during application. For any requirements specific to your State or Tribe, consult the agency responsible for pesticide regulation.

USE RESTRICTIONS

Do not apply this product by air or through any type of irrigation equipment. Do not use on golf course greens, tees and collars. Do not use on lawns with desirable clovers or legumes or on ornamentals. Not for use on sod farms in Arizona. For use in New York by spot treatment only (spray individual weeds only; adjust the sprayer to coarse spray to minimize wind drift, apply to the center of the weeds and spray to lightly cover). For use-specific restrictions in application rates and number of applications, please see APPLICATION INSTRUCTIONS AND RESTRICTIONS section.

USE TIMING

Apply Quincept to actively growing weeds as a postemergence broadcast or spot spray. Follow-up applications may be required for dense infestations of broadleaf and grassy weeds. Under certain conditions, application of Quincept made to annual grasses at 2 to 4-tiller may not provide complete control.

NEWLY SEEDED AREAS:

The application of Quincept to grass seedlings is not recommended until after the third mowing.

NEWLY SODDED, SPRIGGED, OR PLUGGED AREAS:

The application of Quincept to newly sodded, sprigged, or plugged grasses should be delayed until 3 to 4 weeks after the sodding, sprigging, or plugging operations. Delay applications for 4 weeks after seeding and emergence of Kentucky Bluegrass, Perennial Ryegrass and Fine Fescues.

SEEDING:

Delay applications for 4 weeks after seeding and emergence of turf species listed on this label.

MOWING:

It is recommended to not mow for two days before or two days after application. Clippings for the first three mowings should be left in the application area. Do not use clippings as mulch or compost around flowers, ornamentals, trees, or in vegetable gardens.

IRRIGATION AND RAINFALL:

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 one-half inch is required.

Do not apply this product by air or through any type of irrigation equipment.

MIXING INSTRUCTIONS:

Begin with a clean spray tank. Fill the spray tank with one-half the required amount of clean water. Slowly add Quincept while agitating, then complete filling the tank with water. maintain continuous agitation until spraying is complete. If left standing for extended periods of time, re-agitate to assure uniformity of the spray mixture.

Adding adjuvants may cause slight leaf burn, but turf vigor is not reduced. Delaying applications when relative humidity and temperatures are high may help to avoid potential for leaf burn and turfgrass damage. Low mowing heights may also increase the possibility of turf injury. The addition of chelated iron or sprayable solution nitrogen fertilizer will reduce slight yellowing.

For best results, the addition of methylated seed oil is recommended when it meets all of the following criteria.

  • be non-phytotoxic
  • contain only EPA-exempt ingredients
  • provide good mixing quality in the jar test.
  • be successful in local experience

Including additives when tank mixing with emulsifiable concentrate (EC) products may cause phytotoxicity. Adding oil, wetting agent, or other appropriate surfactant to the spray may be used to increase effectiveness on weeds but doing so may reduce selectivity to turf resulting in turf damage. Clean and rinse spray equipment using soap or detergent and water, and rinse thoroughly before reuse for other sprays.

This product can be mixed with some liquid fertilizers or liquid iron materials. Because liquid fertilizers and liquid iron differ in pH, free ammonia content, density, salt concentration and percentage of water, a compatibility test is recommended prior to mixing in the application equipment. All regulations, either State or Federal, relating to the application of liquid fertilizers or liquid iron and this product must be strictly followed.

Quincept may be tank mixed with EPA-registered preemergent herbicides (if compatible) for extended residual control. It is the pesticide user's responsibility to ensure that all products in the listed mixtures are registered for the intended use. Users must follow the most restrictive directions for use and precautionary statements of each product in the tank mixture.

The following compatibility test should always be performed prior to full-scale tank mixing.

  1. Pour 18 ounces of water into a quart jar.
  2. Add 1 ounce of either the liquid fertilizer or liquid iron to be used.
  3. Add 1 ounce of this product.
  4. Close jar and shake well.
  5. Watch the mixture for several seconds after shaking and check again after 30 minutes.
  6. If the mixture does not show signs of separating, the combination may be used. If the mixture foams excessively, gels, separates or gets very thick, do not combine for field application.
  7. Compatibility may be improved by the use of a compatibility agent. Follow the previously outlined test procedures and add 1/6 ounce of the compatibility agent between steps (the compatibility agent must be added to the fertilizer or iron before adding this product).
  8. If the mixture does not separate, gel, foam or get very thick, it may be used for field application. Mix only the amount to be sprayed. Do not allow to stand overnight.
  9. Sprayer Cleaning: Clean application equipment thoroughly before and after application to prevent cross contamination. Use a strong detergent or approved spray tank cleaner and rinse thoroughly.

POSTEMERGENT BROADLEAF WEED CONTROL

Quincept will control or suppress the following list of broadleaf weeds. For best results, apply this product when weeds are actively growing and in early stages of growth. More mature weeds will be more difficult to control and may require a second application. mature, drought-stressed weeds will be more difficult to control so adequate soil moisture is preferred. Adverse or extreme environmental conditions such as poor soil conditions, high temperatures, drought, and cultural conditions may affect the performance of this product.

Do not broadcast apply this product above 90 degrees Fahrenheit. Spot treatments above 90 degrees Fahrenheit may result in some turf injury.

BROADLEAF WEEDS CONTROLLED:

Alder, Annual yellow sweet clover, Artichoke, Austrian fieldcress, Bedstraw, Beggartick, Biden, Bindweed, Bird vetch, Bitterweed, Bitter wintercress, Black-eyed Susan, Black medic, Black mustard, Black-seed plantain, Blessed thistle, Blue lettuce, Blue vervain, Boxelder, Bracted plantain, Brassbuttons, Bristly oxtongue, Broadleaf dock, Broadleaf plantain, Broomweed, Buckhorn, Buckhorn plantain, Bulbous buttercup, Bull nettle, Bull thistle, Burdock, Burning nettle, Bur ragweed, Burweed, Buttercup, Canada thistle, Carolina Geranium, Carpetweed, Catchweed bedstraw, Catsear, Catnip, Chickweed, Chicory, Cinquefoil, Common Chickweed, Common mullein, Common sowthistle, Corn chamomile, Creeping Jenny, Crimson clover, Croton, Cudweed, Curly dock, Curly indigo, Dandelion, Dead nettle, Dock, Dollar weed, Dogbane, Dogfennel, Elderberry, English daisy, Fall dandelion, False dandelion, False flax, False sunflower, Fiddleneck, Field bindweed, Field pansy, Fleabane (daisy), Flixweed, Florida betony, Florida pusley, Frenchweed, Galinsoga, Gralic mustard, Goathead, Goatsbeard, Goldenrod, Ground ivy, Gumweed, Hairy bittercress, Hairy fleabane, Hawkweed, Healall, Heartleaf drymary, Hedge bindweed, Hedge mustard, Hemp, Henbit, Hoary cress, Horsetail, Indiana mallow, Ironweed, Jewelweed, Jimsonweed, Kochia, Knawel, Knotweed, Lamsquarter, Lespedeza, Locoweed, Lupine, Mallow, Marshelder, Matchweed, Mexicanweed, Milk vetch, Milkweed bloodflower, Mugwort, Morningglory, Mousear chickweed, Musk thistle, Mustard, Narrowleaf plantain, Narrowleaf vetch, Nettle, Orange hawkweed, Oxalis, Oxeye daisy, Parsley-piert, Parsnip, Pearlwort, Pennycress, Pennywort, Peppergrass, Pepperweed, Pigweed, Pineywoods bedstraw, Plains coreopsis, Plantain, Poison hemlock, Poison ivy, Poison oak, Pokeweed, Poorjoe, Povertyweed, Prostrate spurge, Prostrate vervain, Puncture vine, Purslane, Ragweed, Red clover, Redroot pigweed, Red sorrel, Redstem filaree, Russian thistle, St. Johnswort, Scarlet pimpernel, Scotch thistle, Sheep sorrel, Shepherdspurse, Slender plantain, Smallflower galinsoga, Smartweed, Smooth dock, Smooth pigweed, Sneezeweed, Southern wild rose, Sowthistle, Spanishneedle, Spatterdock, Speedwell, Spiny amaranth, Spiny cocklebur, Spotted catsear, Spotted knapweed, Spotted spurge, Spurge, Spurweed, Stinging nettle, Stinkweed, Stitchwort, Strawberry clover, Sumac, Sunflower, Sweet clover, Tall nettle, Thistle, Tick trefoil, Toadflax, Trailing crownvetch, Tumble mustard, Tumble pigweed, Tumbleweed, Velvetleaf, Venice mallow, Veronica, Vervain, Vetch, Violet (wild), Virginia buttonweed, Virginia creeper, Virginia pepperweed, Wavyleaf bullthistle, Western clematis, Western salsify, White clover, White mustard, Wild aster, Wild buckwheat, Wild carrot, Wild four-o'-clock, Wild garlic, Wild geranium, Wild lettuce, Wild marigold, Wild onion, Wild parsnip, Wild radish, Wild rape, Wild strawberry, Wild sweet potato, Wild vetch, Willow, Witchweed, Woodsorrel, Woolly croton, Woolly morningglory, Woolly plantain, Yarrow, Yellow rocket, Yellowflower pepperweed.

POSTEMERGENT CONTROL OF GRASSY WEEDS

This product can provide control and suppression of certain grassy weeds. For best results, apply this product when weeds are actively growing and in early stages of growth. More mature grasses will be more difficult to control and may require a second application. Mature, drought-stressed grassy weeds will be more difficult to control so adequate soil moisture is preferred. Adverse or extreme environmental conditions such as poor soil conditions, high temperatures, drought and cultural conditions may affect the performance of this product. Do not broadcast apply this product above 90 degrees Fahrenheit. Spot treatments above 90 degrees Fahrenheit may result in some turf injury.

GRASSY WEED CONTROL

Barnyardgrass, Crabgrass (large), Crabgrass (smooth), Foxtail (giant), Foxtail (green), Foxtail (yellow), Signalgrass (broadleaf).

Under certain conditions annual grasses at the 2 to 4-tiller stage may not be completely controlled and a sequential application may be needed at 14 to 21 days.

APPLICATION INSTRUCTIONS AND RESTRICTIONS

ORNAMENTAL TURF AND SOD

Ensure that spray volumes are adequate to completely cover weeds, especially when dense weed infestation make it difficult to completely cover foliage of target weeds. Early applications of this product will not control weeds germinating later in the season so a second application may be necessary.

Broadcast Treatment: Apply at a rate of 7 to 8 pints/A (112 to 128 fl. oz./A) in a spray volume of 20 to 300 gal/A (0.5 to 6.9 gal/1,000 sq. ft.). Do not exceed 2 broadcast applications per year, excluding spot treatment. For sod, the minimum retreatment interval is 21 days. Do not apply greater than 16 pints of this product per acre per year.

Spot Treatment: Apply at a rate of 2.6 to 2.9 fl. oz. per 1,000 sq. ft. in a spray volume of 1 gal. Do not apply greater than 16 pints of this product per acre per year.

NON-TURF AREAS

Control of Annual and Perennial Plants:

Ensure that spray volumes are adequate to completely cover weeds, especially when dense weed infestations make it difficult to completely cover foliage of target weeds. Early applications of this product will not control weeds germinating later in the season so a second application may be necessary.

Broadcast Treatment: Apply at a rate of 7 to 8 pints/A (112 to 128 fl. oz./A) in a spray volume of 20 to 300 gal/A (0.5 to 6.9 gal/1,000 sq. ft.). Do not exceed 2 broadcast applications per year, excluding spot treatments, with a minimum retreatment interval of 30 days. Do not apply greater than 16 pints of this product per acre per year.

Spot Treatment: Apply at a rate of 2.6 to 2.9 fl. oz. per 1,000 sq. ft. in a spray volume of 1 gal. Do not apply greater than 16 pints of this product per acre per year.

Control of Woody Plants:

For control of woody plants, apply to both stems and foliage any time from the time foliage is completely matured until the time plants start to go dormant. All leaves, stems and suckers must be completely wet to the ground line for effective control. Regrowth may be anticipated on the more hardy species.

Broadcast Treatment: Apply at a rate of 7 to 8 pints/A (112 to 128 fl. oz./A) in a spray volume of 20 to 300 gal/A (0.5 to 6.9 gal/1,000 sq. ft.). Do not exceed 2 broadcast applications per year, excluding spot treatments. Do not apply greater than 16 pints of this product per acre per year.

Spot Treatment: Apply at a rate of 2.6 to 2.9 fl. oz. per 1,000 sq. ft. in a spray volume of 1 gal. Do not apply greater than 16 pints of this product per acre per year.

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  • 5 of 5 Stars

    Best product in the world

    By Rafael on 08/31/2019

    I used it one time and all my weeds were gone in two days. This is the best product in the world. I recommend it to everyone who can afford it.

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    8 of 8 people found this review helpful

  • 2 of 5 Stars

    Don't think I will purchase again

    By I on 08/26/2022

    Don't think I will purchase again I used the product exactly as the directions stated and it didn't kill a thing. The next time I spray, I'm going to up the volume of this product. Not satisfied at all with it.

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  • 1 of 5 Stars

    Is this a weed killer or a weed fertilizer?

    By Harald on 09/29/2023

    This product is terrible, applied 2 times with little to no effect on my weeds. DO NOT WASTE YOUR MONEY ON THIS PRODUCT! My wife swears that if you listen real close you can hear the weeds laughing at me.

    Expert ResponseExpert response:
    We apologize you did not achieve the intended results. We would welcome the opportunity to troubleshoot the application to help get you the results you need. Please contact us at your earliest convenience!

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Questions & Answers

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Sort Questions
Q
How long after applying the Quincept Herbicide can I overseed my lawn?
A

Per label, you can overseed 4 weeks after application of Quincept Herbicide.

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4 of 7 people found this answer helpful

Q
How many ounces of Quincept Herbicide should I use in a 30 gallon sprayer?
A

What rate Quincept Herbicide is applied at depends on the area you are treating and types of weeds, ie ornamental turf, non turf areas.  Please refer to the product label for your specific application.

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3 of 17 people found this answer helpful

Q
Is Quincept Herbicide the best herbicide for dollarweed control in Zoysia Grass?

Is Quincept the best recommended product for this? Any specific time that the treatment should be applied? ie. time of year or as needed when weeds are visible? Located in NC if that matters. Also, would a pre-emergent be helpful in controlling the dollarweed?

A

Quincept Herbicide does list dollar weed on the product label and zoysia is listed as moderately tolerable so it is an option for post emergent control.  It would be applied when the target weeds are actively growing and healthy.  You can use Ferti-Lome Broadleaf Weed Control with Gallery as a pre-emergent for pennywort/dollarweed. 

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Q
After spot spraying with Quincept Herbicide, I have significant brown patches/bare spots. What should I do?
A

Replanting seed in bare spots where you have killed weeds will fill in the spots. You should wait 4 weeks after your Quincept Herbicide application before seeding in the same area.

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Q
Can I apply Quincept Herbicide to Zoysia in the southeast in the fall (October)?
A
Quincept Herbicide can be used on Zoysiagrass in the fall if weeds are actively growing. Please see the label for full application instructions. 

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Quincept Herbicide 2.5 out of 5 stars Rating: 2.7 (3 Reviews / 5 Q&A)

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