Hi-Yield Grass Killer Post-Emergent Herbicide

4.5 out of 5 stars 17 Reviews | 64 Q&A

Hi-Yield Grass Killer Post-Emergent Herbicide

Ask A Pro

Call Us: 866-581-7378
Mon-Fri 9am-5pm ET
Email Customer Service
For help with your order
Live Chat
DIY Pros Available Now

You May Also Need

Temprid FX 8 mL
$6.98

Average Rating

4.5 out of 5 stars Rating: 4.4

17 Reviews | 64 Q&A

Product Overview

Hi-Yield Grass Killer is a post-emergent selective herbicide that kills annual and perennial grasses in ornamental landscapes and desirable plants.  Can also be used on trees, shrubs, and ground covers. Hi-Yield Grass Killer stops grass from growing within 2 days of application.

For best results you should add a surfactant to your solution to help the product stick to the target weeds and grass.

Features and Specs

Active Ingredient: Sethoxydim 18%
Target pests: Barnyardgrass, Bermudagrass, Crabgrass (large & smooth), Foxtails, Quackgrass, Witchgrass and others
* See label for complete list
For use in: Vegetables, Gardens, Trees, Shrubs, Ornamentals and ground covers
Application: 1 oz. per gallon of water per 1,800 sq. ft. *Use 1 oz. of surfactant per gallon of solution * See label for complete application instructions
Pet safe: Yes, when used as directed on label
Yield: Makes 8 gallons of solution
Coverage Area: 14,400 sq. ft.
Shipping Weight: 0.57 lbs
Manufactured By: VPG (Mfg. Number: 31134)
UPC: 732221311343

Details

Hi-Yield Grass Killer is a postemergent selective herbicide that kills annual and perennial grasses in ornamental landscapes and desirable plants. Can also be used on trees, shrubs, and ground covers. Hi-Yield Grass Killer stops grass from growing within 2 days of application.

5 stars   13
4 stars   2
3 stars   0
2 stars   0
1 star   2
  
  • 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.

    Was this review helpful to you?  YesNo

    28 of 29 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.

    Was this review helpful to you?  YesNo

    21 of 21 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!

    Was this review helpful to you?  YesNo

    14 of 15 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.

    Was this review helpful to you?  YesNo

    8 of 10 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

    Was this review helpful to you?  YesNo

    8 of 8 people found this review helpful

See all 17 customer reviews

Questions & Answers

Have a question about this product?
  
Q
What is "oil concentrate"?

Why is it not in "Hi-Yield" grass killer or why is not stated on front of label that it will be needed? Frustrating to drive one hour home to read label and then find out!

A
We are not the manufacturer so we cannot comment on why it is not on the label.  When an herbicide calls for oil, it is referring to a surfactant.  Surfactant helps the herbicide stick to the waxy coating of the weeds and lawn you are applying it to.  It improves the effectiveness of herbicides greatly.

Was this answer helpful to you?  YesNo

31 of 35 people found this answer helpful

Q
Is Hi-Yield OK for berries and conifer plantings?

I'd like to keep the grass away from our rows of blackberries and also plan to put in a windbreak of Eastern Redcedar, Mulberry, and American Plum and need to keep grass away from the seedlings. Safe?

A
Yes, the Hi-Yield Grass Killer Postemergence Herbicide is labeled to be used around fruits, vegetables, and ornamentals without fear of damaging these desirable vegetation.

Was this answer helpful to you?  YesNo

16 of 16 people found this answer helpful

Q
Can I use Hi-Yield Grass Killer safely on the grasses growing in my iris plants?
A
Hi-Yield Grass Killer is a post-emergent selective herbicide that kills annual and perennial grasses in ornamental landscapes and desirable plants. Iris plants are tolerable per the product label. You will use 1 fl. oz. per gallon of water and add a surfactant such as Hi-Yield Spreader Sticker.

Was this answer helpful to you?  YesNo

11 of 12 people found this answer helpful

Q
What types of oil can be used as a surfactant? I've used dish detergent in the past with other products.
A
The manufacturers normally recommend that you use some type of certified surfactant with their products like the Non Ionic Surfactant. With a Glyphosate product like the Hi Yield Grass Killer Herbicide, you would need 1 tablespoon per gallon of mixture. Please let us know if you have any other questions.

Was this answer helpful to you?  YesNo

9 of 11 people found this answer helpful

Q
Will the Hi-Yield Grass Killer Postemergence Herbicide harm asparagus or chicory

Plan to use on garden and wildlife food plots

A
The product label for the Hi-Yield Grass Killer Postemergence Herbicide does state it can be safely applied to asparagus and several other types of vegetables.  We have contacted the manufacturer to ask about chicory and wild food plots as those are not on the label and will let you know what we find out

Was this answer helpful to you?  YesNo

7 of 8 people found this answer helpful

See all 64 customer questions

Hi-Yield Grass Killer Post-Emergent Herbicide 4.5 out of 5 stars Rating: 4.4 (17 Reviews / 64 Q&A)

From $25.95 + Free Shipping*