Hi-Yield Atrazine Weed Killer

3.5 out of 5 stars 25 Reviews | 120 Q&A

Hi-Yield Atrazine Weed Killer

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Average Rating

3.5 out of 5 stars Rating: 3.6

25 Reviews | 120 Q&A

Product Overview

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.

Features and Specs

Active Ingredient: Atrazine 4%
Target pests: Henbit, Moneywort, Pennywort (Dollarweed), Chickweed (Common and Mouseear), Spurge, Annual Bluegrass (Poa annua), Dichondra, Knotweed, Cudweed, Florida Betony, Lespedeza, Mustards, Narrowleaf Vetch, Parsley-Piert, Sandspur, Smutgrass, Spurweed, Swinecrest, Woodsorrel and Various Annual Clovers
* Supresses Crabgrass
For use in: St. Augustine and Centipede grass
Application: 5 tsp. per quart of water per 100 sq. ft.
8.8 oz. per 2 gallons on water per 1,000 sq. ft.
* See label for complete application instructions
Pet safe: Yes, if used as directed on Label
NOT FOR SALE TO: CA, MN, NY, WA
Shipping Weight: 2.31 lbs
Manufacturer: VPG (Mfg. Number: 33430)
UPC: 732221334304
EPA Registration: 19713-567-7401

Details

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 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 controls Spurweed, Florida Betony, Annual Bluegrass and many other problem weeds in St. Augustinegrass and Centipedegrass turfs. This 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.

WARNING: This product can expose you to chemicals including Atrazine, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to https://www.P65Warnings.ca.gov

  
  • 2 of 5 Stars

    Trying to kill Pennywort

    By Gary 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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    42 of 44 people found this review helpful

  • 5 of 5 Stars

    Really a weed killer

    By Andres 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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    27 of 27 people found this review helpful

  • 1 of 5 Stars

    Atrazine

    By John 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 ResponseExpert 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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    25 of 28 people found this review helpful

  • 1 of 5 Stars

    ZERO

    By Paul 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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    24 of 30 people found this review helpful

  • 4 of 5 Stars

    Atrazine weed killer

    By O. 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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    20 of 20 people found this review helpful

See all 25 customer reviews

Questions & Answers

Have a question about this product?
  
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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345 of 380 people found this answer helpful

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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146 of 154 people found this answer helpful

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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105 of 116 people found this answer helpful

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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97 of 104 people found this answer helpful

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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67 of 76 people found this answer helpful

See all 120 customer questions

Hi-Yield Atrazine Weed Killer 3.5 out of 5 stars Rating: 3.6 (25 Reviews / 120 Q&A)

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