Q4 Plus Turf Herbicide - Questions & Answers

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  • Asked by Sergio from Tucson, Arizona
    02/17/2017
    Q
    Is Q4 Plus Turf Herbicide selective for St. Augustine grass?
    I have a Sod farm , i want to kill weeds in my St. Augustine plantation, how will Q4 effect the St. Augustine variety?
    A

    Q4 Plust Turf Herbicide is not labeled safe for St. Augustine grass, the active ingredients in this product will burn the grass if it's applied to it. 

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    3 of 4 people found this answer helpful.
  • Asked by Chris from Mountain Home, Ar
    02/01/2017
    Q
    What liquid fertilizer can I add to Q4 Plus Turf Herbicide?
    I live in Arkansas(the northern transition area for grasses) and need to know what liquid fertilizer i can mix with Q4 so that I could possibly do an application in one spraying instead of two.
    A

    CoRon 18-3-6 Plus 0.5% Fe that can be used with Q4 Plus Turf Herbicide. These two products can be mixed together and applied at the same time. Be sure to do a small tank mix test first to ensure there is no clumping between the two products.

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    5 of 6 people found this answer helpful.
  • Asked by Christopher from Virginia Beach
    12/30/2016
    Q
    Will it be effective to spray Q4 Plus Turf Herbicide in January in tall fescue?
    I live in Virginia Beach, Virginia.
    A

    Q4 Plus Turf Herbicide is a post-emergent herbicide, so it will only be effective on existing plants that are actively growing. You should not use any post-emergent herbicides during winter temperatures or when weeds are dormant.

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    4 of 4 people found this answer helpful.
  • Asked by Chevo from Burke, Va
    10/11/2016
    Q
    How long after re-seeding my tall fescue lawn in Fairfax, VA may I apply Q4 Plus?
    I applied Drive xlr8 herbicide to my one acre tall fescue lawn in Fairfax, VA. 10 weeks ago, but it did NOT kill all my crabgrass. On 9/15/16, I core aerated, re-seeded, and applied McGill Compost to my lawn. The new grass is growing well, but I still have few weeds (crabgrass). Since it has been nearly 30 days since I re-seeded my tall fescue lawn, can I apply Q4 Plus Turf Herbicide to kill the remaining weeds? Our current temps are 50s at night to 60s to 70s during the day. BTW, I've already purchased and received the Q4 from your store. Thanks!
    A

    Per the product label for Q4 Plus Turf Herbicide you should delay application to grass seedlings until after the second or thrid mowing, or 28 days after emergence.

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    1 of 1 people found this answer helpful.
  • Asked by Jim from Cedar Rapids, Ia
    10/10/2016
    Q
    Why should I only use Q4 Plus Turf Herbicide twice a year?
    I was using T-Zone SE to spray my yard and switched to Q4 Plus to include getting rid of Crabgrass as well. I spray my entire yard with Q4 Plus in April and September. The label says ONLY two broadcast applications per year. The problem is the Ground Ivy (Creeping Charlie). The Q4 Plus kills 90-95% of it in April but by the time September comes around, it's all grown back. My question is why can't I spray three times a year? I would think spraying in April, July and September would probably eradicate the Ground Ivy eventually. I might take a couple years but only spraying twice a year is not going to win the battle. I believe the two applications a year is based on the 2-4D in the product.
    A

    Products such as Q4 Plus Turf Herbicide should only be applied the maximum amount of times listed on the product label.  This how often the manufacturer has determined it is safe for the environment to use them. As ground ivy is a winter weed, it is best controlled when products are applied in the Fall as they start to green up.  Another option is to simply pull it up in between applications, though this may take several months of doing so to gain complete control.

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    6 of 11 people found this answer helpful.
  • Asked by Bruce from Crozet, Va
    09/14/2016
    Q
    What is the shelf life of Q4 Plus Turf Herbicide in a garage?
    I made the mistake of storing Q4 in the garage. It is not effective this year as a result. Do I need to toss the remainder in the bottle or mix the solution with more product?
    A

    Q4 Plus Turf Herbicide should be stored in a cool dry place and not exposed to extreme temperatures, i.e. above 90 and below freezing.  If it was stored in less than optimal conditions, and you are noticing that it has separated in the bottle and with shaking will not go back into solution or it is not as effective, we would recommend replacing it.

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    4 of 4 people found this answer helpful.
  • Asked by Todd from Chicago, Il
    09/14/2016
    Q
    Why should the first three clippings be left on the turf after applying Q4 Plus Turf Herbicide?
    A

    Most insecticides containing the active ingredient Quinclorac, such as Q4 Plus Herbicide, will have similar labeling to allow the clippings from the first 3 mowings after application to remain on the turf. Since quinclorac stays active for many weeks and needs as much contact time on the target plants as possible, this helps to get the most effect from your sprays. Basically, we do not want to cut the grass and remove the product that we've just applied before it has had time to kill the target weeds.

    Another reason to allow clippings to remain is so that they are not mulched too quickly, potentially causing damage to desirable plants while the quinclorac may still be active enough to damage susceptible plants.

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    66 of 69 people found this answer helpful.
  • Asked by Jo from Concord, Nc
    09/11/2016
    Q
    How long after applying Q4 Plus can I replant ajuga?
    I spilled some on patio & washed down with garden hose instead of wiping up because if was approx 3+ ounces & spreading quickly. Unfortunately, I have ajuga planted beside. I kept watering it off of them. Will it keep spreading to the other mature plants? I pulled up the wilted ones. I know grass is one week but didn't see any ornamentals.
    A

    Q4 is not going to move through the soil and affect other plants that were not directly sprayed with the product.  If you have watered the area well and it did not contact others or their roots, they should be fine.  The label does state not to apply to ornamental landscape beds.  We would recommend contacting the manufacturer directly for timing of when you can apply in that area.  PBI Gordon can be reached at 800-821-7925.

     

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    3 of 5 people found this answer helpful.
  • Asked by Jo from Charlotte, Nc
    09/11/2016
    Q
    How long after spraying Q4 Plus Turf Herbicide can I plant?
    A

    Per the Q4 product label: Turf species listed on the label can be seeded into the treated areas 1 week after the application.

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    8 of 8 people found this answer helpful.
  • Asked by Athanasios from Annandale, Virginia
    09/07/2016
    Q
    Can I use Q4 and apply starter fertilizer at the same time ?
    A

    Yes, you can apply both Q4 Plus Turf Herbicide and starter fertilizer at the same time. Be sure you are following the product label instructions under "Cultural Tips" for restrictions around new turf and reseeding to avoid damaging desirable turfgrass.

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    11 of 11 people found this answer helpful.
  • Asked by Sherri from Saint Charles
    08/16/2016
    Q
    Can you use Q4 on desirable buffalo grass?
    T
    A

    We do not recommend applying Q4 Plus Turf Herbicide to buffalograss since there is no mention of tolerability on the product label.

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    1 of 1 people found this answer helpful.
  • Asked by Scott from New Jersey
    08/03/2016
    Q
    How long after applying Q4 Plus can I water?
    A

    You can water approx 6 hours after application of Q4 Plus Turf Herbicide. It is considered "rainfast" after this time.

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    17 of 18 people found this answer helpful.
  • Asked by Prn from Monroe, Mi
    06/09/2016
    Q
    What is the application rate of Q4?
    I have a 25 gallon tank sprayer and just purchased a gallon of Q4. How many ounces of Q4 per gallon of water do I use?
    A

    The application rate of Q4 Plus Turf Herbicide varies depending on what type of truf grass  you have. Cool Season Grasses: 2.6 - 3 oz. per 1,000 sq. ft. (7 - 8 pints per acre) Warm Season Grasses: 1.8 - 2.6 oz. per 1,000 sq. ft. (5 - 7 pints per acre) Please let us know if you have any more questions.

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    21 of 39 people found this answer helpful.
  • Asked by Paul from Chester, Nj
    05/24/2016
    Q
    How long does my new grass need to be established before I reapply Q4 Plus Turf Herbicide?
    Hello, I planted new grass near an area that I want to reapply Q4 plus. I planted my new grass approx 6 weeks ago and the last time I applied Q4 Plus was last Fall.
    A

    It is recommended that you wait until the second or third mowing or at least 28 days after emergence to re-apply Q4 Plus Turf Herbicide.

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    2 of 3 people found this answer helpful.
  • Asked by Jw from Leesburg, Ga
    05/11/2016
    Q
    Will Q4 Plus Turf Herbicide get rid of thistle in my Bermuda grass?
    A

    Q4 Plus Turf Herbicide will treat for Thistle in Bermuda. Keep in mind that yellowing may occur on the Bermuda. Be sure to apply during the cooler times of the day, morning or evening. 

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    6 of 6 people found this answer helpful.
  • Asked by Mark from Rose Hill, Ks
    03/07/2016
    Q
    How much Q4 Plus Turf Herbicide do I use per Acre in a lawn that is a mixture of Fescue and Bermuda?
    I have 2.5 acres. I will be using a 30 gallon sprayer. Please tell me how much to mix to treat my 2.5 acres. Primarily for foxtail and crabgrass. I am pulling my hair out trying to figure the correct ratio.
    A

    The mixing ratio of Q4 Plus Turf Herbicide varies with these 2 types of grasses.   For Fescue the amount is 7- 8 pints per acre (2.6 to 3.0 fl oz/1000 sqft) For Bermuda you use 5-7 pints per acre (1.8 to 2.6 fl oz/1000 sqft).  So for the mixture you could use the 7 pints/acre or 2.6 fl/1000 sqft

    As for the amount of water the label states the following and varies depending on the type of sprayer:

    For Conventional Spray Equipment: 50 to 220 gal/acre

    For Low Volume Spray Equipment: Equipment should be calibrated to apply at least 20 gallons per acre

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    5 of 9 people found this answer helpful.
  • Asked by Mike from Carson City, Nv
    02/02/2016
    Q
    How long can Q4 Plus Turf Herbicide sit as a mixed solution and maintain its efficacy?
    Mixed as per label, does it remain effective sitting in a bk pk sprayer to be used over the course of 4-5 days?
    A

    Q4 Plus Turf Herbicide should only be mixed when you are ready to apply the finished solution. You will want to use within 24 hours for the most effectiveness.

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    78 of 83 people found this answer helpful.
  • Asked by Chuck from Newton, Nc
    10/21/2015
    Q
    Can Q4 Plus Turf Herbicide be used to kill bermuda grass in a fescue lawn?
    A

    No, Q4 Herbicide is not labeled for bermudagrass control in fescue lawns. However, we would recommend Fusilade II because it can be used to remove bermuda grass from tall fescue and zoysia grass when used at reduced rates. Please be sure to read over the product label for complete use instructions prior to use.

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    18 of 22 people found this answer helpful.
  • Asked by Jim from Hamden, Ct
    10/06/2015
    Q
    How long before I can reseed after I have applied Q4 Plus Turf Herbicide?
    A

    If you will be reseeding the area, turf species listed on the product label can be seeded one week after the application of the Q4 Plus Turf Herbicide.

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    179 of 188 people found this answer helpful.
  • Asked by J.r. from Sanantonio Texas
    07/14/2015
    Q
    Will Q4 Plus Turf Herbicide harm a St.Augustine lawn?
    A

    The Q4 Plus Turf Herbicide product label states that it should not be applied to St. Augustine grass, so it is likely that it would be harmful to that type of grass.  If you can tell us what type of weed(s) you need to treat, we will be happy to recommend a product to use that would be safe to apply to St. Augustine grass.  

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    7 of 10 people found this answer helpful.
Displaying 201 to 220 (of 238 questions)