Hi-Yield Atrazine Weed Killer

$13.95

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3.5 out of 5 stars Rating: 3.5

12 Reviews | 35 Q&A

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Hi-Yield Atrazine Weed Killer quart (32 oz)

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Hi-Yield Atrazine Weed Killer

Hi-Yield Atrazine Weed Killer controls Henbit, Dollarweed, Chickweed, Clover, Sandspur and others listed on label. Hi-Yield Atrazine Weed Killer controls both emerged weeds and weeds from seed in St. Augustine and Centipedegrass. Hi-Yield Atrazine Weed Killer controls tough weeds.




Weeds Controlled or Suppressed: Annual Bluegrass (Poa annua), Chickweed (Commonand Mouseear), Crabgrass (suppression only), Cransbill, Cudweed, Dichondra, Florida Betony, Henbit, Knotweed, Lespedeza, Moneywort, Mustards, Narrowleaf Vetch, Parsley-Piert, Pennywort (Dollarweed), Sandspur, Smutgrass, Spurge, Spurweed, Swinecrest, Woodsorrel and various annual clovers.

Established St. Augustinegrass and Centipedegrass: This product may be applied during both dormant and growing seasons. Best results are usually obtained when applied in early Spring or dormant periods when weeds are small or have not emerged. Do not apply more than two treatments per year. This product controls Spurweed, Florida Betony, Annual Bluegrass and many other problem weeds in St. Augustinegrass and Centipedegrass turfs. 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, rainfallor watering is necessary within 7 to 10 days after treatment.

Spurweed: Control of Spurweed can best be obtained by applying when Spurweed has newly emerged(December and January.)

Florida Betony: This weed emerges in the Fall. Apply this product in mid to late October followed by a second application in mid to late February.

Dichondra, Moneywort: 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.

Rating Snapshot

5 stars   6
4 stars   1
3 stars   1
2 stars   1
1 star   3

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Average Customer Rating
3.5 out of 5 stars (12)

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  • 19 of 19 people found this review helpful:

    2 of 5 stars  Trying to kill Pennywort
    By Gary in Oak Ridge, TN on 05/30/2012
    Verified Purchase

    I sprayed the Atrazine as directed and it didnt kill the Pennywort. I waited a week and a half and sprayed some areas again and also some new areas. After another 2 weeks and a couple of rains I noticed some of the Pennywort was dead, but much of the grass around the sprayed areas was dead as well. In general, it killed more grass than Pennywort.

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  • 8 of 10 people found this review helpful:

    1 of 5 stars  ZERO
    By Paul in Canandaigua, NY on 05/28/2012
    Verified Purchase

    I might just as well have used water to kill the weeds. No result at all. it was a total waste of money. i ended up using round up from walmart.

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  • 8 of 8 people found this review helpful:

    3 of 5 stars  Not sure...
    By Chris in Hudson, FL on 03/08/2013
    Verified Purchase

    I mix a bottle of this with Tenacity on my St. Augustine Floratam lawn. The combination works great but it may be all Tenacity. BTW, Tenacity is awesome on Floratam lwans.

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  • 8 of 8 people found this review helpful:

    4 of 5 stars  Atrazine weed killer
    By O. in Norfolk,Va on 05/07/2014
    Verified Purchase

    In Norfolk,Va. I purchase atrazine to use on ST. Augustine grass. I followed the mixing instructions. The grass is growing and looking great.

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  • 6 of 7 people found this review helpful:

    5 of 5 stars  Weed Killer
    By Steve in Cape coral fl on 05/23/2014
    Verified Purchase

    Excellent product, shipping was fast and on time. Would purchase from this seller again.

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  • 5 of 6 people found this review helpful:

    1 of 5 stars  Atrazine
    By John in Florida on 12/29/2014
    Verified Purchase

    Doesn't seem to be working so well. Thought it worked on st. Augustine grass. weeds are still there and don't seem to be dying

    Expert Response   Expert response:
    It will be tough to use almost any post-emergent herbicide this time of year. Atrazine will provide the best control when weeds are young or just prior to weed emergence. If the weeds are not actively growing, then you will see limited results.

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  • 4 of 4 people found this review helpful:

    5 of 5 stars  Really a weed killer
    By Andres in Gainesville on 02/04/2015
    Verified Purchase

    After fighting with a pest control service for months without results, and my front grass getting worse, I decide to try Atrazine which they said they wouldn't apply. It worked nicely and even in the winter months I cant see any sign of getting back in the weeds. I took my pest control in my own hands and I hope to use many more products as time goes by.

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  • 2 of 4 people found this review helpful:

    5 of 5 stars  Speedy
    By Thomas in Youngstown on 04/03/2015
    Verified Purchase

    The speed of delivery was amazing! Fast online order I have ever recieved from any company. As far as the product I have used for years and love the results it gives.

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  • 1 of 1 people found this review helpful:

    5 of 5 stars  ATRAZINE KILLED THE WEEDS IN MY LAWN IN ABOUT THREE WEEKS ,I
    By James in GREENVILLE NC. on 06/01/2016

    ATRAZINE KILLED THE WEEDS AND ALSO SEEMED TO FERTILIZE THE SAINT AUGUSTINE AT THE SAME TIME.

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  • 1 of 1 people found this review helpful:

    5 of 5 stars  ATRAZINE KILLED WEEDS IN THREE WEEKS.
    By James in GREENVILLE NC. on 06/01/2016

    ATRAZINE KILLED ALL THE WEEDS IN MY LAWN ,AND SEEMED TO FERTILIZE THE SAINT AUGUSTINE AT THE SAME TIME.

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  • 1 of 1 people found this review helpful:

    5 of 5 stars  Good Product
    By Rich in SC on 07/07/2016

    Used Atrazine mostly to spray Chamberbitter (gripe weed) in centipede. Works very well.

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  • 0 of 1 people found this review helpful:

    1 of 5 stars  Fertilizing My Weeds
    By Djs in Broxton on 04/09/2016

    I have used atrazine products previously with positive results. This product was a disappointment. I followed the instructions as written and I thought that I had purchased weed fertilizer instead of weed killer. It did not kill any type of weed! I wish that I had simply mowed the centipede grass and left the weed choking to my centipede. Expensive lesson learned!

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Most Helpful Q&A's

07/25/2012 James from Savannah, Ga. 31411

QHow much Atrazine weed killer should be mixed per gallon?

AAccording 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.

74 of 75 people found this answer helpful.
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02/26/2013 Randy from Peachtree City, Ga

QCan Hi-Yield Atrazine be used on Bermuda grass lawns?

AAtrazine should only be used on St Augustine and centipede grasses only.

8 of 9 people found this answer helpful.
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05/29/2014 Robert from Canada

QAtrazine 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?

AWe 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!

7 of 12 people found this answer helpful.
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09/25/2013 June from Winter Haven Fl

QNeed directions for mixing Hi Yield Atrazine?
mixing directions

AThe 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.

6 of 6 people found this answer helpful.
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03/14/2015 Tlf from South Carolina

QIt rained today, how long before i can apply Atrazine?

AYou 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.

6 of 6 people found this answer helpful.
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Most Recent Customer Questions

10/30/2015 Anne from Virginia Beach, Virginia

QIs 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.

2 of 2 people found this answer helpful.
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09/26/2015 Ken from Pensacola, Fl

QIs the Hi-Yield Atrazine Weed Killer the best control for chamber bitter in my centipede lawn?

A

Hi-Yield Atrazine Weed Killer controls chamber bitter in a centipede lawn. Please refer to the product label for complete mixing and application instructions.

3 of 3 people found this answer helpful.
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09/14/2015 Debbie from Gray,ga

QIs 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. 

3 of 3 people found this answer helpful.
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04/08/2015 Stacy from Pearson, Ga

QAfter application of Hi-Yield Atrazine Weed Killer, how long do we need to wait to let pets out onto lawn?

APets 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.

3 of 3 people found this answer helpful.
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10/27/2014 Travis from Hopkins, Sc

QCan you mix Hi-Yield Atrazine Weed Killer with 2-4-D and a liquid fertilizer in the same broadcast sprayer?

AThese 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.

2 of 4 people found this answer helpful.
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04/21/2014 Al from Seven Lakes, Nc 27376

QI 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?

ARain 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.

2 of 2 people found this answer helpful.
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03/26/2014 John from Winnsboro, Sc

QCan Atrazine be used in sweet corn?

AYes, Hi-Yield Atrazine Weed Killer can be used around Corn. Atrazine is a chemical compound widely used as an herbicide in commercial crops and home lawn care. It is part of the triazine group of herbicides, the most widely used group of herbicides.

3 of 4 people found this answer helpful.
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02/20/2013 Frustrated from Southernbellesville

QWhy 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.

AThe 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.

4 of 5 people found this answer helpful.
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02/16/2013 Steve from Statesboro

QCan you mix a surfactant with Atrazine to help it contact weeds to boost its quick killing?

AHi-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.

4 of 4 people found this answer helpful.
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05/10/2012 Adam from Fairview, Pa

QCan I use Atrazine on Kentucky Bluegrass?
I want to kill Poa Annua and thought KBG would not be harmed if Hi-Yield Atrazine Weed Killer is safe on St. Augustine lawns.

AAtrazine is not labeled for use on Kentucky Blue Grass so we cannot recommend you use it for this type of application. Most products that are labeled for poa annua cannot be used on KBG. We recommend that you spot treat the poa annua using a non-selective herbicide such as Killz All Grass and Weed Killer. Your best option for poa annua is to use a pre-emergent herbicide in the Fall such as Hi-Yield Turf & Ornamental Weed & Grass Stopper with Dimension. It will prevent the poa annua seed from germinating into weeds. It will not kill existing weeds and it is safe to use on KBG. Apply the granules and water in after application. Repeat treatment in Spring to prevent other grassy and broad-leaf weeds in your yard.

3 of 5 people found this answer helpful.
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See all 35 questions »


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