Grass Out Max (Clethodim Herbicide) - Questions & Answers

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  • Asked by Vince from Downingtown, Pa
    04/15/2019
    Q
    Does Grass Out Max kill grass?
    Will this kill grass/lawn?
    A

    Yes, Grass Out Max is specifically designed to kill any and all grasses it is sprayed on.

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  • Asked by Dale
    04/23/2019
    Q
    Will Grass Out Max kill my newly planted almond tree
    A

    Grass Out Max (Clethodim Herbicide) should only be applied as directed on established almond trees.

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  • Asked by P. from Greentown, Pa
    05/05/2019
    Q
    Besides corn, what other food crop is in the grass family & Grass Out shouldn't be used?
    A

    Do not allow Grassout to contact desirable grass crops such as corn, rice, sorghum, small grains, or turf, as these and other grass crops will be injured or killed.  The complete list of tolerable plants you can use Grass Out Max (Clethodim Herbicide) over can be found on the label

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    0 of 1 people found this answer helpful.
  • Asked by Jimmy from Southern Wisconsin
    05/16/2019
    Q
    Will Grass Out Max harm snow on the mountain?
    A

    Grass Out Max does not list  "snow on the mountain" ground cover as tolerable on the label.   We would recommend that you contact the manufacturer, Agrisel at 877-247-4735.

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  • Asked by Matthew from Oxford, Ms
    05/25/2019
    Q
    How safe and effective is Grass Out Max on controlling grass in a wildflower garden?
    As wildflowers are not ornamental as such, as compared to, say, irises and shrubs, is this product safe to spray on wildflowers?
    A

    If you are using Grass Out Max around blooming flowers, then you should not use crop oil as your surfactant. We suggest testing a small area to check for tolerance if you are spraying around plants not listed as tolerant on the product label.

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  • Asked by Mary from San Bernardino, Ca
    06/06/2019
    Q
    Is Grass Out Max safe to use on dichondra?
    A

    Grass Out Max (Clethodim Herbicide) does not list dichondra as tolerable on the product label.  We would recommend testing over a small area first to see if any injury occurs.

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  • Asked by J from Myakka City, Fl
    07/01/2019
    Q
    Will Grass Out Max kill cogon grass?
    A

    Grass Out Max does list cogon grass on the label as controlled.  There is an article here with more information that may be helpful.

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  • Asked by Stormeo from Omaha, Ne
    08/15/2019
    Q
    Does Grass Out Max kill windmill grass??
    A

    Grass Out Max (Clethodim Herbicide) does not specifiy that it can be used for windmill grass so we cannot recommend it.  Tenacity Herbicide is labeled to treat for windmill grass and may be an option for you depending on your turf type.

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  • Asked by Bryan from Ripon, Wi
    08/23/2019
    Q
    Can Grass Out Max be used on a brassica food plot?
    A

    Yes, Grass Out Max is safe for applications to brassica per the product label instructions.

     

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    0 of 1 people found this answer helpful.
  • Asked by Wendy from Inman
    08/23/2019
    Q
    How many ounces of Grass Out Max (Clethodim Herbicide) per gallon?
    A

    Rates for Grass Out Max (Clethodim Herbicide) can vary depending on what and where you are treating.  Please refer to the product label for complete information. 

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    0 of 4 people found this answer helpful.
  • Asked by Keith from Tuscaloosa Alabama
    09/05/2019
    Q
    Can I use Grass Out Max on carrots?
    A

    Yes, Grass Out Max does list carrot on the label.

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  • Asked by Travis from Des Moines, Ia
    02/03/2020
    Q
    What type of herbicide can I use for beds with ornamental grasses and knock out roses?
    A

    Grass Out Max  is a selective post-emergent herbicide used to control annual and perennial grasses.   Grass Out Max will effectively kill more than 50 different grasses. It will not effect flowers, shrubs, broadleaf crops or other broadleaf plants. Please refer to the product Label for complete application instructions. 

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  • Asked by Dianna from Ames, Iowa
    03/30/2020
    Q
    What is the expectation to see efficacy with the product when applied per label?
    A
    Grass Out Max and all other pesticides we sell are expected to work when used as directed on the product label. Keep in mind that any EPA approved product must get approval that all details provided on the product label are accurate and truthful before a product can be registered or sold. If a product is not effective, then it will not have the target pest or weed on the label under the given instructions. Please let us know if you have questions about a specific weed or application.
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  • Asked by Joe from Peru, Il
    07/07/2020
    Q
    Is Grass Out Max safe for hostas and day lily?
    A

    Grass Out Max is a selective post-emergent herbicide used to control annual and perennial grasses. It is labeled for most landscape, home and garden, ornamental, agricultural and non-crop uses. The unique feature of Grass Out Max is that it will ONLY kill grasses and NOT affect flowers, shrubs, broadleaf crops or other broadleaf plants.  Yes, it is safe to use in hostas and day lily plants.
     

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    0 of 1 people found this answer helpful.
  • Asked by Kristi from Bogart
    01/27/2021
    Q
    Dilution of Grass Out Max (Clethodim Herbicide)
    You right .4 oz is that the same as 4 oz? I'm reading .4 ounce as 4/10 of an ounce.
    A

    If you are referring to the product label for Grass Out Max referencing 0.4 fl. oz. / 1000 sq. ft., then you are correct in that 0.4 oz. is less than 1 oz., and would be the equivalent of 4/10 oz.  

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  • Asked by Fred
    03/04/2021
    Q
    Can Grass Out Max (Clethodim Herbicide) be used on Christmas tree plantations?
    A

    Grass Out Max Herbicide can be used for post-emergent control of listed grasses on Christmas tree plantations. Be sure to review the product label for complete instructions. 

    Snapshot DG is a pre-emergent herbicide labeled for landscape ornamentals, Christmas tree plantations, container grown ornamentals, field grown ornamentals, groundcovers/perennials, non-bearing fruit and nut trees, non-bearing vineyards, non-cropland. Please see the label for complete application instructions. 

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  • Asked by Jan from Lewisburg, Tn
    03/20/2021
    Q
    How much Grass Out should I use per acre?
    I have 6 acre field
    A

    Grass Out Max per the product label rates vary depending on the target weeds. Please refer to the product label for complete instructions.
     

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  • Asked by Don from Tn
    04/15/2021
    Q
    How long does Grass Out Max last?
    A

    Grass Out Max (Clethodim Herbicide) is not labeled for use at all as it is used to control it so applying across the lawn has probably stunted/injured it if still dormant when it should be growing.  Only time will tell if it will recover or not, we apologize we could not provide a better answer.

     

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    0 of 1 people found this answer helpful.
  • Asked by Sandra from Oregon City, Oregon
    04/24/2021
    Q
    Can I use Grass Out Max to kill grass around my apple and pear trees?
    A

    If the trees are non-bearing fruit apple and pear trees, then yes, Grass Out Max (Clethodim Herbicide) can be used around the trees. 

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    0 of 1 people found this answer helpful.
  • Asked by John from Dallas Georgia
    04/29/2021
    Q
    I used Grass Out Max (Clethodim Herbicide) to treat for poa annua in my lawn which worked great however my lawn is now also brown? Did I kill my lawn also?
    A

    Grass Out Max targets grassy weeds like poa annu but also kills grasses including turfgrass. At this point only time will tell if the bermuda will recover. Product labels should always be reviewed and followed exactly to be sure they are used properly.

    For treating poa annua in bermuda you need to use a selective herbicide such as Image Kills Nutsedge for small areas, or Certainty or Negate for larger areas. Please review our How to Get Rid of Poa Annua Treatment Guide for more information. 

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    0 of 1 people found this answer helpful.
Displaying 121 to 140 (of 167 questions)