SedgeHammer Plus Herbicide - Questions & Answers

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  • Asked by C from Baton Rouge, La
    08/12/2013
    Q
    I notice that you recommend that Sedgehammer not be applied when temps are over 85F.
    Can it be safely applied in the early morning prior to the high afternoon temps to avoid damaging other plants?
    A
    You can safely apply Sedgehammer in the early morning to avoid damaging other plants, it is only during application do you want to avoid spraying when temps are above 85F
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    516 of 538 people found this answer helpful.
  • Asked by Ken
    04/16/2011
    Q
    After I mix 2 gallons of Sedgehammer, how long will it remain effective?
    I have my nutsedge down to a small area with only a dozen colonies so I mix 2 gallons and fill a one quart spray bottle for convenience. How long will the remaining liquid product remain effective?
    A
    Typically it is not recommended to leave any pesticide solution in a sprayer for more than two weeks at a time.  You should only mix what you plan on using.  If you want to leave the product in the sprayer for longer you should at least shake and agitate the sprayer every few days to keep the solution from separating.
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    363 of 389 people found this answer helpful.
  • Asked by George from Warminster Pa.
    08/02/2013
    Q
    When is the best time to apply Sledgehammer, before or after cutting your lawn?
    A
    We recommend to apply Sedgehammer two days after mowing your lawn. This will allow the weeds to be more open to absorbing the Sedghammer. You also want to wait at least 2 days before mowing your lawn after application.
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    356 of 366 people found this answer helpful.
  • Asked by Fred
    02/10/2013
    Q
    How long does Sedgehammer take to break down?
    I had a bad infestation of nut grass in a garden bed which I have since sprayed. How long before I can safely use it as a vegetable garden?
    A
    We checked with the manufacturer on this one and they told us that the product can stay active in the soil for up to 3 years and a veggie garden should not be planted in this area for at least 3 years.
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    345 of 357 people found this answer helpful.
  • Asked by Laurence
    07/11/2011
    Q
    What surfactant should I use with the Sedgehammer Herbicide?
    Is there a preference as to which type? I noticed there are varying types, Non-Ionic, DyneAmic. Please advise as I plan to purchase ASAP. Thanks
    A
    All the surfactants on our website are non-ionic which is the type of surfactant the manufacturer of SedgeHammer herbicide recommends for use with their product in the bottle size (1.33 oz). The 13.5 gram pack of SedgeHammer already includes a built-in surfactant.
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    270 of 284 people found this answer helpful.
  • Asked by Billy from Colt, Ar
    04/17/2015
    Q
    How long must sedgehammer be applied before being affected by rain
    A
    Sedghammer will be rainfast 4 hours after application. 
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    222 of 226 people found this answer helpful.
  • Asked by Steve from Jax. Fl.
    03/02/2013
    Q
    Does the temperature have any effect on SedgeHammer?
    A
    Yes, temperatures can have an effect on the Sedgehammer. You should only apply the product when the plants are actively growing (cold temps can prohibit growth) and should not be applied when temps are over 85F to avoid damaging beneficial plants.
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    181 of 197 people found this answer helpful.
  • Asked by Byron from Sarasota, Fl
    09/10/2013
    Q
    I purchased a 1.3 oz. bottle of sedgehammer, how many spoons to put in one gallon water
    gallon sprayer?
    A
    You want to mix one spoonful Sedgehammer into one gallon water.
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    179 of 195 people found this answer helpful.
  • Asked by Todd from Collierville, Tn
    08/08/2013
    Q
    I used Sedgehammer on nutgrass/nutsedge several days ago and it has yet to even begin to turn brown.
    Should I be concerned?
    A
    Most of our customers begin to see results in 5 to 7 days, as long as the product was applied correctly according to the label.  The product label does state that the product often works with one application, but depending on the size and age of the nutsedge a second treatment may be required 6 to 10 weeks after the initial treatment.
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    158 of 161 people found this answer helpful.
  • Asked by Daniel from Wrightstown
    07/06/2013
    Q
    How soon is SedgeHammer Herbicide safe?
    A
    It is safe for people and pets to be around the area Sedgehammer has been applied, after the treated areas have completely dried.
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    154 of 158 people found this answer helpful.
  • Asked by Nolberto from Delano, Ca
    08/26/2013
    Q
    How soon before and after applying Sedgehammer herbicide can I water my lawn?
    A
    According to the product label, SedgeHammer should is effective if no rainfall occurs within 3 hours, but best result are obtained with no rainfall or irrigation for at least 4 hours.
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    135 of 140 people found this answer helpful.
  • Asked by Jacqueline from Houston, Tx
    07/03/2014
    Q
    My dogs tend to chew on anything I spray, is it still safe to use Sedgehammer in my yard after it has dried?
    This is why I have such a sedge problem. I have found other organics that work on everything else, but the nut sedge is a pain!
    A
    It is safe for pets to be around the area Sedgehammer has been applied, after the treated areas have completely dried.  The small amount of active ingredient that is on the grass is not enough to harm a dog.
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    99 of 102 people found this answer helpful.
  • Asked by Courtney
    04/27/2011
    Q
    Can I use SedgeHammer to kill nutsedge right before sodding with St. Augustine?
    I have bare soil (with nutsedge) right now and am planning to sod in the next 7-10 days. Or do I need to place the sod and then wait 4-6 weeks and go over it with the SedgeHammer?
    A
    Per the label on Sedgehammer, you are not supposed to reseed or sod within 3 to 4 weeks of using Sedgehammer.  Therefore you have only a couple of options.  One, is to treat the sedgehammer and stun it with a glyphosate (round up) type product which allows you to reseed within 7 days with no issues.  Or, you can treat with Sedgehammer and wait 3 to 4 weeks before re sodding.  If you must sod in 7 to 10 days, then you should treat the nutsedge with a glyphosate product and then you can treat with sedgehammer later if any new nutsedge makes it through the sod you are applying.
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    95 of 104 people found this answer helpful.
  • Asked by Alex from Las Vegas, Nevada
    03/24/2018
    Q
    After treatment, how safe is Sedgehammer Herbicide on pets and kids?
    How long should I wait?
    A

    SedgeHammer Herbicide is safe for people and pets once dry, when applied as directed on the product label. You should keep children and pets out of the treatment area while you are spraying SedgeHammer or any other herbicides or insecticides until the application is completely dry, usually 1-2 hours.

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    90 of 92 people found this answer helpful.
  • Asked by Barbara from Bastrop, La
    02/14/2015
    Q
    How log should I wait to plant vegetables after I use the SedgeHammer Herbicide?
    A
    We checked with the manufacturer on this one and they told us that Sedgehammer can stay active in the soil for up to 3 years and a veggie garden should not be planted in this area for at least 3 years.
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    88 of 94 people found this answer helpful.
  • Asked by William from Lawrenceville, Ga
    02/11/2012
    Q
    Is SedgeHammer post emergent only? Is it effective as a pre emergent for nutsedge?
    A
    Sedgehammer is a post emergent nutsedge product only.  It will not prevent nutsedge from germinating.  Unfortunately pre-emergents do not control summer weeds like nutsedge.
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    87 of 96 people found this answer helpful.
  • Asked by Tee
    06/26/2011
    Q
    Does a measuring spoon come with the 1.33 oz bottle of Sedgehammer? If not, how would you measure .9 grams?
    A
    Yes, there is a measuring device in the box of the Sedgehammer 1.33 oz.
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    86 of 116 people found this answer helpful.
  • Asked by Cindy from Rancho Santa Fe Ca
    03/26/2015
    Q
    When applying Sedgehammer would it be better to water the area before applying?
    A
    There is no need to water before applying SedgeHammer, just make sure you getting good coverage on the sedge you are trying to treat while applying.
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    67 of 70 people found this answer helpful.
  • Asked by Jean
    04/28/2010
    Q
    I want to eliminate nutsedge. Can SedgeHammer Herbicide be applied to a new, Empire Zoysia sodded lawn?
    A
    Sedgehammer is great for the nutsedge, but it is not recommended to be used on a brand new lawn.  The real question would be how "new" is your lawn?  Sedgehammer should only be used once your "new" grass is established, usually after 2-3 months so the roots have time to really take root.  If this is the case and your lawn is established, then SedgeHammer would be great to use.  It is recommended that you use a surfactant with the SedgeHammer to help it stick to the nutsedge and be more effective.  We recommend Dynamic to use with the Sedgehammer. 
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    57 of 60 people found this answer helpful.
  • Asked by Anthony from Staten Island Ny.
    09/11/2013
    Q
    I have a small area to spray can I use only a half a packet with the water/sedgehammer?
    A
    We do not see why you could not break down the mixing ratio of Sedgehammer. However,this would be off label use, and  we do want to make sure you receive the best results, and we recommend speaking with Gowan  800-883-1844 for specific instructions.
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    52 of 57 people found this answer helpful.
Displaying 1 to 20 (of 269 questions)