Hi-Yield Atrazine Weed Killer Help - Questions and Answers

Hi-Yield Atrazine Weed Killer

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Hi-Yield Atrazine Weed Killer

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Asked by Joseph from Winter Garden, Fl

03/12/2023

Q

Does Hi-Yield Atrazine Weed Killer kill creeping beggarweeds in St Augustine grass?

A

Hi-Yield Atrazine Weed Killer does not list Creeping Beggarweed on it's label. We would recommend using Blindside Herbicide instead.

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Asked by Mike from Newtown

04/02/2023

Q

Can I apply Hi-Yield Atrazine Weed Killer immediately after seeding?
I am pretty sure I can, but wanted to be certain. Can this be applied immediately after broadcasting Switchgrass seed? Big Bluestem?

A

Hi-Yield Atrazine Weed Killer or any other post-emergent should not be applied until grass is established. Generally until the lawn has been mowed 3 times. Atrazine also states to not seed until 6 months after application as it is also a pre-emergent. It is only for use on Centipede and St Augusti…
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Hi-Yield Atrazine Weed Killer or any other post-emergent should not be applied until grass is established. Generally until the lawn has been mowed 3 times. Atrazine also states to not seed until 6 months after application as it is also a pre-emergent. It is only for use on Centipede and St Augustine turfgrasses.

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Asked by Pam from Jackson, Ms

05/16/2023

Q

Is there a way to neutralize Hi Yield Atrazine once sprayed?
I sprayed my lawn and now my Forest Pansy Redbud looks like it is dying. Maybe I got too close to the tree? It has Pinestraw around the base that was not sprayed so it was not sprayed up next to the trunk. But maybe too close? And this may not even be the problem with the redbud

A

Unfortunately, there is little that can be done to counteract the effects once Hi-Yield Atrazine has been applied to species other than Centipede or St. Augustine grass. The only way to neutralize it is to apply activated charcoal if it's within a few hours if you are able to locate one …
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Unfortunately, there is little that can be done to counteract the effects once Hi-Yield Atrazine has been applied to species other than Centipede or St. Augustine grass. The only way to neutralize it is to apply activated charcoal if it's within a few hours if you are able to locate one You may wish to contact the manufacturer directly to see if they have any other recommendations. You can reach VPG/Hi-Yield by calling 855-270-4776.

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Asked by Doug from Ky

05/23/2023

Q

I live in Kentucky will Hi-Yield Atrazine Weed Killer work here?

A

Hi-Yield Atrazine Weed Killer is a product that can only be used on St. Augustine and Centipede grass. It will harm cool-season lawns or other grasses so depends on the type of turfgrass you have.

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Asked by Keith from New Iberia, La

06/16/2023

Q

I have pampas grass full of Virginia creeper and Peppervine, can i use Atrazine to kill it?
I don't want to kill the pompous grass

A

Hi-Yield Atrazine Weed Killer is only labeled to be used on St Augustine and Centipede turfgrass. It should not be used in beds or around ornamental grasses. Best option for broadleaf weeds in the area is handpulling or very carefully spot treating with a non selective herbicide avoiding any co…
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Hi-Yield Atrazine Weed Killer is only labeled to be used on St Augustine and Centipede turfgrass. It should not be used in beds or around ornamental grasses. Best option for broadleaf weeds in the area is handpulling or very carefully spot treating with a non selective herbicide avoiding any contact with desirable plants.

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Asked by Roger

06/25/2023

Q

I planted Tifblair Centipede seed 6 weeks ago. Is this Atrazine safe to use now on the grass that has emerged?

A

Hi-Yield Atrazine Weed Killer is only safe on established lawns. Lawns are considered established once they been mowed 3 times.

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Asked by Rick from Monroe, Nc

09/14/2023

Q

Does the pre emergence aspect of Atrazine affect the spreading or regrowth of the centipede stolons?

A

Yes, Hi-Yield Atrazine Weed Killer can inhibit seed growth of turfgrass, you cannot seed treated areas for at least 6 months after application.

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Asked by Darwin from Oviedo

11/08/2023

Q

Can Hi-Yield Atrazine Weed Killer be applied while grass is wet from dew?

A

Hi-Yield Atrazine Weed Killer is best applied to a dry lawn but a slight amount of dew is okay as long as not dripping wet.

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Asked by Jason from Atlanta Georgia

12/12/2023

Q

Can I use this on dormant St Augustine grass to kill winter ryegrass?

A

While it is safe to apply Hi-Yield Atrazine Weed Killer to fully dormant St.Augustine grass, it is not labeled to control rye grass. Sertay Herbicide (Generic Certainty can be used to control perennial ryegrass.

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Asked by D. from Jacksonville, Fl

01/26/2024

Q

Why can Atrazine only be used twice a year on St Augustine grass?

A

Hi-Yield Atrazine Weed Killer is only labeled to be used twice per year for actively growing listed weeds on St. Augustine and Centipede turf as directed due to the percentage of Atrazine and the sensitivity of St. Augustine and Centipede turf grass.

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Asked by Herbert from Sumter Sc

03/20/2024

Q

When to seed bare areas with centipede seed after using Hi-Yield Atrazine Weed Killer
After applying Atrazine to a lawn area that was overrun with weedsl That area is now bare. When can I reseed with centipede seed or lay down centipede sod. Could I do either if I first put down some top soil. Please advise me as to options. Thank you very much.

A

Per the product label Do not overseed turf areas within 6 months of treatment of Hi-Yield Atrazine Weed Killer.

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0 of 1 people found this answer helpful.
Asked by Marjie from Pensacola, Fl

05/30/2024

Q

Is Atrazine safe for ornamental plants and in flower beds?

A

Hi-Yield Atrazine Weed Killer should not be applied near, on or around ornamental plants and flower beds. It should only be applied as directed to actively growing weeds in established Centipede and St. Augustine lawns.

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Asked by Max from Anton. Texas

06/29/2024

Q

Can you use Hi-Yield Atrazine Weed Killer around pecan trees?
Henbit and goat head around pecan trees

A

Applications of Hi-Yield Atrazine Weed Killer would need to be kept outside of the dripline of any nut trees.   You could consider carefully spot treating the weeds with a product such as Avenger Weed Killer Concentrate, which is a non-selective herbicide, made from the rind of oranges to co…
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Applications of Hi-Yield Atrazine Weed Killer would need to be kept outside of the dripline of any nut trees.   You could consider carefully spot treating the weeds with a product such as Avenger Weed Killer Concentrate, which is a non-selective herbicide, made from the rind of oranges to control most annual grasses, weeds and broadleaf. Be sure to avoid any contact with the trees themselves or exposed roots.

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Asked by Pedro from The Woodland, Tx

08/02/2024

Q

Which is better spectracide weed stop for lawns with Atrazine or Weed Stop for lawns crabgrass killer?
Which one of these is the best grab grass killer but will not harm my saint Augustine grass. Thank you

A

Hi-Yield Atrazine Weed Killer would be the product to use on St Augustine. Spectracide Weed Stop for Lawns Plus Crabgrass Killer Concentrate states Do not apply to St Augustine on the product label. It contains Quinclorac which St Augustine is not tolerable to.

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Asked by Anonymous from Baton Rouge Lousisana

02/22/2025

Q

Do I need to use a Pre emergent after applying Atrazine to my lawn?

A

Pre emergents are applied before weeds have germinated. If the weeds are actively growing, you can continue to treat with Atrazine .
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Pre emergents are applied before weeds have germinated. If the weeds are actively growing, you can continue to treat with Atrazine .

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