Hi-Yield Atrazine Weed Killer - Questions & Answers

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  • Asked by James from Savannah, Ga. 31411
    07/25/2012
    Q
    How much Atrazine weed killer should be mixed per gallon?
    A
    According to the product label: You should mix 4.3 fl ozs of Hi Yield Atrazine per gallon of water for each 500 sq ft area.
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    496 of 551 people found this answer helpful.
  • Asked by Tlf from South Carolina
    03/14/2015
    Q
    It rained today, how long before i can apply Atrazine?
    A
    You should apply Atrazine when the ground is dry. This product will control both emerged weeds and weeds from seeds. Rain or water within 2 or 3 days of application may decrease the effectiveness on emerged weeds. However, for the control of weeds from seeds, rainfall or watering is necessary within 7 to 10 days after treatment.
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    233 of 252 people found this answer helpful.
  • Asked by Steve from Statesboro
    02/16/2013
    Q
    Can you mix a surfactant with Atrazine to help it contact weeds to boost its quick killing?
    A
    Hi-Yield Atrazine Weed Killer is already premixed with a surfactant and another surfactant does not need to be added to make the product more effective.
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    182 of 194 people found this answer helpful.
  • Asked by Randy from Peachtree City, Ga
    02/26/2013
    Q
    Can Hi-Yield Atrazine be used on Bermuda grass lawns?
    A
    Atrazine should only be used on St Augustine and centipede grasses only.
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    176 of 193 people found this answer helpful.
  • Asked by Stacy from Pearson, Ga
    04/08/2015
    Q
    After application of Hi-Yield Atrazine Weed Killer, how long do we need to wait to let pets out onto lawn?
    A
    Pets should not be in the treated area during the application of Hi-Yield Atrazine Weed Killer or while wet. Once the treated surfaces are completely dry, the pets can re-enter.
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    135 of 144 people found this answer helpful.
  • Asked by June from Winter Haven Fl
    09/25/2013
    Q
    Need directions for mixing Hi Yield Atrazine?
    mixing directions
    A
    The application rates vary, depending on what type of turf you are applying to. If you are applying to St. Augustine and Centipede lawns you would mix 4.3fl oz Hi Yield Atrazine into One gallon water to treat 500sq feet. Please follow the product label for application.
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    120 of 131 people found this answer helpful.
  • Asked by Frustrated from Southernbellesville
    02/20/2013
    Q
    Why do the instructions on Hi-Yield Atrazine Weed Killer state to only use this twice a year?
    My once-beautiful yard has been taken over by florida betany. It's the plague! Atrazine is the best herbicide I've found to kill it, but I've had to use it more often than twice a year, more like four times, twice in the Fall and twice early Spring.
    A
    The EPA gets to decide how often a chemical can be applied. They usually make this decision based on how long the product lasts in the environment, what kind of damage can be caused by over application and many other technical factors.
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    101 of 107 people found this answer helpful.
  • Asked by Robert from Canada
    05/29/2014
    Q
    Atrazine is extremely harmful!
    There is strong evidence that the widespread use of Atrazine is harmful to amphibians, bees, birds and humans, at any ppm/ppb level. Are you considering suspension of the sale of Atrazine?
    A
    We follow EPA recommendations and at this time they have not recommended suspension of sales on this active ingredient. Please let us know if you have any other questions. We are always happy to help!
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    94 of 118 people found this answer helpful.
  • Asked by Joe from Fl
    02/22/2017
    Q
    Does Hi-Yield Atrazine Weed Killer have to be watered in?
    A

    Hi-Yield Atrazine Weed Killer does not have to be watered in as the water mixed with the product will carry it through. It would be best to apply when the lawn is damp.

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    90 of 98 people found this answer helpful.
  • Asked by Ernie from Wilmington Nc
    04/27/2014
    Q
    What air or soil temerature are nec. to activate Atrizine for effective Spurge&Lespedenza; control in Centipede
    A
    Hi-Yield Atrazine Weed Killer should be used when air temperatures are between 65-90 degrees. Normally, the hotter it is the faster the burn down will be.  Although, do not apply Hi-Yield Atrazine Weed Killer when the temperature exceeds 90 degrees. 
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    89 of 94 people found this answer helpful.
  • Asked by Larry from Trenton, Fl
    07/05/2017
    Q
    How long does it take to see results when using Hi-Yield Atrazine Weed Killer?
    A

    The exact amount of time it will take to see results with Hi-Yield Atrazine Weed Killer can vary somewhat, depending on what type(s) of weeds you are treating.  Typically, Atrazine is a very slow-acting herbicide, and it can take up to 4-6 weeks after application to see full results. 

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    82 of 84 people found this answer helpful.
  • Asked by John from Tampa
    10/08/2017
    Q
    What is the safe application temperature using Hi-Yield Atrazine Weed Killer for st Augustine?
    I notice that you are not supposed to use on St Augustine when temps are above 85 deg. I also noticed that you recommended a July application to someone in central Florida. I find this confusing. How long after application must the temp stay below 85 after application to not damage st Augustine grass?
    A

    Hi-Yield Atrazine Weed Killer can be applied early in the morning before temperatures reach 90 degrees if it's expected to get this hot on the day of application.  You just do not want to apply during the time of high temperature because your desirable turfgrass is under more stress in high heat.

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    79 of 84 people found this answer helpful.
  • Asked by Debbie from Gray,ga
    09/14/2015
    Q
    Is Atrazine pet friendly?
    A

    Atrazine is safe to use on your yard as long as you keep pets out of the area while you do the application, and until the ground has had time to completely dry. 

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    78 of 89 people found this answer helpful.
  • Asked by Travis from Hopkins, Sc
    10/27/2014
    Q
    Can you mix Hi-Yield Atrazine Weed Killer with 2-4-D and a liquid fertilizer in the same broadcast sprayer?
    A
    These products may be mixed together following the instructions on each product label.  We do recommend a compatibility test if you have not done so previously. A compatibility test will check for changes in color, odor, and consistency. If any of these chemical changes are observed then a tank mixture would not be recommended.
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    70 of 81 people found this answer helpful.
  • Asked by Al from Seven Lakes, Nc 27376
    04/21/2014
    Q
    I applied atrazine to centipede lawn three weeks ago with little affect on the weeds.
    I used it last year and it worked fine. Unfortunately, it rained 36 hours after applying this year. Can i reapply another spraying now?
    A
    Rain or water within 2 or 3 days of application may decrease the effectiveness on emerged weeds. Yes, you can reapply the Hi-Yield Atrazine Weed Killer again and perferably do a spot spraying of the areas that need attention to lessen the likelyhood of damage to your lawn.
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    68 of 73 people found this answer helpful.
  • Asked by The from South Mississippi
    07/03/2017
    Q
    What's best to kill crabgrass in centipede?
    A

    As you probably know, Centipedegrass is a very sensitive species of turf so many products that eliminate the crabgrass and other weeds can also cause damage to your lawn. Hi Yield Atrazine is safe to be used on Centipede and it will suppress Crabgrass but may not completely eliminate it. It will also control a large variety of other broadleaf weeds. Tenacity is a great pre- and post-emergent herbicide that will control crabgrass along with many other types of weeds without harming your centipede lawn. Make sure to read the Tenacity label very carefully and mix exactly what is recommended as this is a strong product and mis-using it can cause temporary turf injury. When applying Tenacity it is highly recommended to use a temporary turf colorant like Turf Mark Blue to allow you to see where you are spraying. Overlapping your application of Tenacity can cause temporary whitening of the lawn as well, but the color will return in 3-4 weeks at most. Please let us know if you have any other questions.

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    55 of 59 people found this answer helpful.
  • Asked by William from Tampa Florida
    07/25/2013
    Q
    Is atrazene the best herbicide for weed control of st Augustine grass at this time of year
    A
    You sure can use Hi Yield  Atrazine to treat weeds in St. Augustine grass. Depending on what you are treating will dictate when to apply this product. For example, Apply this product in early April followed by a second applicationin July. Note:Applications for Spurweed or Florida Betony generally will give control or suppression of the other listed weeds. However, as a general rule, this product will give best control when applied to young tender weeds or just prior to weed emergence. Please follow the product label to application instructions.
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    48 of 56 people found this answer helpful.
  • Asked by G. from Castroville, Tx
    05/02/2017
    Q
    How do you mix Hi-Yield Atrazine Weed Killer?
    Lost label directions for atrazine and added sufactant, need mixing directions
    A

    The mixing rate for Hi-Yield Atrazine Weed Killer is 4.4 fl oz per gallon of water and will treat 1000 square feet. The rate of the surfactant is 1-2 teaspoons per gallon of water.

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    46 of 51 people found this answer helpful.
  • Asked by Steve from Statesboro
    02/12/2013
    Q
    Do you have to use 4 gallons of water with the 16 oz of product or can it be sprayed with say 2 gallons of water without damage?
    A
    It is very important to follow the directions on the product label or you do risk getting uneven coverage and damaging your lawn. If you only have a two gallon sprayer perhaps you can mix up 8.6 fl oz into two gallons of water cover 1,000 sq ft.
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    42 of 44 people found this answer helpful.
  • Asked by Anne from Virginia Beach, Virginia
    10/30/2015
    Q
    Is Hi-Yield Atrazaine Weed Killer safe on the Palmetto blend of St. Augustine grass?
    A

    There are no restrictions on what type of St. Augustine grass the Hi-Yield Atrazine Weed Killer can be used on. The mixing ratio is 4.4 fl. oz. per gallon of water.

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    40 of 46 people found this answer helpful.
Displaying 1 to 20 (of 127 questions)