Customer Reviews for Hi-Yield Grass Killer Post-Emergent Herbicide

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Average Customer Rating

4.1 of 5 stars
(36 customer reviews)
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Displaying 1 to 24 (of 24 reviews)
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  • 5 of 5 Stars

    A good deal

    By Nancy on 03/17/2015

    Verified Purchase

    I used this product once last summer and it stopped my Bermuda grass from growing within my Centipede. The runners appear green when runner stalks were broken even though they have not grown any...so I am going to use this again in a few weeks to prevent any spring growth. So far, it is the only thing I have found to eliminate the Bermuda.

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    74 of 79 people found this review helpful

  • 5 of 5 Stars

    Killing bermuda in centipede

    By Ultracon on 05/23/2016

    This stuff really works when used with the surfectant! After one application, the bermuda has stopped growing and is dying. The centipede is untouched! A second application will be going on in a week or so. This is really, really, good stuff and worth the $$!!!!! Be sure to get the surfectant as well to mix them together. A solution to my problem after years of digging and pulling!

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    47 of 49 people found this review helpful

  • 5 of 5 Stars

    Great service!

    By Bruce on 09/09/2015

    Ordered Hi-Yield grass killer on Monday and received it on Thursday. I had a number of Crab Grass patches in our lawn and used it as a spot spray on those patches. Follow the label and add a spreader sticker oil. It has been several days and the Crab Grass appears to be killed and I am satisfied with the product.

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    45 of 46 people found this review helpful

  • 5 of 5 Stars

    Dave

    By David on 09/07/2016

    excellent product, killed all my wild grasses and did not harm my centipede

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    31 of 31 people found this review helpful

  • 5 of 5 Stars

    HY YIELD GRASS KILLER

    By R on 08/23/2016

    WORKS GREAT TO KILL BERMUDA AND CRABGRASS IN CENTIPEDE LAWN.

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    29 of 31 people found this review helpful

  • 5 of 5 Stars

    It works!!

    By Paige on 01/21/2018

    It killed the grass in one week, but left our flowers unblemished. Last summer we had a large area in our yard we planted in cosmos (cosmos sulphureus, and cosmos bipinnatus ), Mexican sunflowers (Tithonia rotundifolia), and zinnias. It all came up beautifully, but so did some grass. We tried to keep it pulled but there was just too much of it and so the grass began to take over and stunt the growth of the other plants considerably. So I did research on grass killers that would leave my other plants alone. I sprayed it and a week later the grass was dying, the cosmos, zinnias, and sunflowers were doing great. By the end of the summer, they had recovered a lot and nearly filled the grass gap. We had so wished we had known about this stuff at the beginning of the season. But we're ready this year! I was a little concerned about the Cosmos as it was not listed on the label among the plants that this did not injure. But I can attest: they were fine. My space was probably 50 ft long and 20 feet wide. It used very little of the product (mixed as directed) so at this rate this bottle should last us 4, 5, or more seasons! May even find more places to use it. I used a hand pump sprayer and just did enough to ensure I had misted all the grass. One application did it. I'll continue to use it unless it fails me.

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    18 of 18 people found this review helpful

  • 5 of 5 Stars

    Really goes after the Bermuda!

    By George on 06/14/2017

    Bought a home that has a centipede lawn. In sunny areas, Bermuda had really infiltrated and was completely taking over the centipede. This product is killing the Bermuda and leaving the centipede untouched. I have heard others it requires multiple applications to take out the Bermuda. In my case, it seems to be doing it in one! Just make sure to combine it with a surfactant when applying.

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    7 of 7 people found this review helpful

  • 5 of 5 Stars

    grass killer

    By Renda on 06/15/2018

    Worked great in our asparagus...grass dead asparagus doing great.

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    7 of 7 people found this review helpful

  • 5 of 5 Stars

    This stuff WORKS!

    By Sarah on 08/21/2020

    I got this "Hi-Yield Grass Killer", as well as the recommended "Hi-Yield Spreader Sticker Non-Ionic Surfactant", to take care of all the grasses that invaded my new flower and vegetable gardens this year. Between the weather, multiple home repairs, finally finishing our bedroom, and the pandemic, I was unable to keep with the gardens. I was about to throw in the towel on them, when I found this product. I decided it was worth the cost to see if I could reclaim the new beds, and not waste all the time, money and effort I had put into prepping the beds last fall, growing the plants from seed in early Spring, and finally getting everything into place when the weather finally broke. But by Summer, the grass had infiltrated all around, was way high, and tough as nails to pull out. I needed something that would kill the grass, but not the flowers and veggies. This is the stuff! I can see all the plants I put in the wildflower patch now, and the veg beds will be salvaged. I think I may even get my row of Irises back! It is simple to mix, and very effective. It took about a week to show signs of having been done, and another to prove it was really working. I did a second application at the 2 week point, to get what had been protected by the tall stuff on the first round. I don't think I'll have to do another. I definitely recommend it! My flowers are much happier now. And so am I.

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    6 of 6 people found this review helpful

  • 5 of 5 Stars

    BE CAREFUL!!!

    By Scott on 10/08/2018

    Got this to kill creeping signal grass, well it works. I also killed most of my other grass (centipede) should have started out light and waited 2 weeks and see results. Nope I used 4 bottles on about an acre and half too much. I say use lightly and if that does not get it hit it again, but it will kill what you are after and then some if not careful.

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    5 of 6 people found this review helpful

  • 5 of 5 Stars

    Works great in landscape beds

    By Lola on 08/11/2018

    This did the job spraying over the landscape plants to eliminate the grasses.

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    4 of 4 people found this review helpful

  • 5 of 5 Stars

    Centipedegrass weeder...WORKS!!!

    By Kenny on 09/03/2018

    I used this product to kill Bermuda in my Centipedegrass lawn in South Louisiana. WORKED VERY WELL!!! No damage to my lawn at all!.. 1oz per gallon mixed with surfactant and blue marking dye. Used my backpack sprayer and sprayed lawn until grass was covered well and let it sit. 2 weeks and the crabgrass and Bermuda is dying. Reordering to hit the straggling Bermuda.

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    4 of 4 people found this review helpful

  • 5 of 5 Stars

    I want to kill out Bermuda that is infiltrating my Centipede

    By John on 07/23/2018

    After 3 weeks and two applications, I think it is doing a good job killing out the encroaching Bermuda. In Eastern NC, the sandy soil will allow the running Bermuda to take over. High Yield Grass Killer seems to be a good option.

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    3 of 3 people found this review helpful

  • 5 of 5 Stars

    Grass killer

    By Sonny on 07/20/2018

    I needing something to kill grass in my sweet potato patch. It has done a good job. It takes two or three days to see the results. I have used it in my peas, peanuts and other broad leaf garden plants and it has dad a good job keeping the grass out of my garden.

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    3 of 4 people found this review helpful

  • 5 of 5 Stars

    Working well on my centipede grass

    By George on 08/07/2020

    Needed a second application at the 1oz per gal rate but it is working well on the other grasses infiltrating my centipede without any issues.

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    2 of 2 people found this review helpful

  • 5 of 5 Stars

    Grass Killer

    By George on 08/14/2020

    Worked as described does a great job on unwanted grasses

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    2 of 2 people found this review helpful

  • 5 of 5 Stars

    Great for Japanese Stiltgrass

    By Susan on 09/12/2019

    I have several acres of woods that are being inundated with Japanese Stiltgrass. I used this product with a surfactant and it was very effective in killing the stiltgrass without killing the ferns, narrow-leafed grasses, and other plants that were growing with it.

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    1 of 1 people found this review helpful

  • 5 of 5 Stars

    Hi-Yield Grass Killer

    By Ultracon on 05/01/2020

    This stuff works! If you have bermuda in your shrubs, garden, or lawn that you don't want you can spray the bush (I have azaleas) with the bermuda. Won't harm the bush but will kill the unwanted grass. Great for weeds in your lawn! If it would only kill Poa Annua, it would be perfect. Five Stars.

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    1 of 1 people found this review helpful

  • 5 of 5 Stars

    grass killer

    By Jeffrey on 09/21/2021

    works on everything but nutsedge. Yes i will buy this product again.

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    1 of 1 people found this review helpful

  • 5 of 5 Stars

    Worked grat

    By Chris on 06/17/2023

    I bought this to kill Bermuda grass in my yard. It worked great and didn't harm my centipede grass. It also worked better on killing crabgrass than tenacity and it didn't turn it white.

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    1 of 1 people found this review helpful

  • 5 of 5 Stars

    Takes Patience

    By Dale on 05/08/2020

    This is the only product I have found that kills grasses that try to take over my iris and asparagus beds that doesn't affect the iris and asparagus. It does take patience as you won't notice the grass dying right away, especially in cooler weather with lows in upper 30's and daytime highs in the mid sixties. I sprayed initially 4 weeks ago with a second application a week later using dormant oil in the mixture. This is the first week that I can see more brown grass than green and it is definitely working on those hard to kill grasses that send runners all over.

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  • 5 of 5 Stars

    Effective Weed Killer

    By Jacob on 09/24/2021

    Hi-Yield Grass Killer has done an excellent job of killing the common bermuda in my centipede lawn. It took about two weeks to be totally noticeable, but it is certainly noticeable now. I regret that I waited so long in the summer to apply it. Plan to hit it hard next spring to try and totally eliminate it. I'm sure it has killed some othe unwanted weeds, but I mainly bought it for the common bermuda. This was done through spot treating.

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  • 5 of 5 Stars

    kills cat-tails

    By C-money on 06/17/2023

    This is the only weed killer I have found, that kills cat-tails effectively. Not cheap, but worth it.

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  • 5 of 5 Stars

    Killing the Johnson grass

    By Amy on 07/21/2023

    The product seems to be working to selectively kill the Johnson grass out of my wild flower bed. The coreopsis is unharmed. It does take quite a while for it to die, however. It's been about two weeks and I may use a second treatment just to ensure that all the Johnson grass is completely gone.

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Displaying 1 to 24 (of 24 reviews)