Customer Reviews for Grass Out Max (Clethodim Herbicide)

Being new to this product I was a little concerned (a lot concerned) about spraying my tomatoes wit this product but I give it a try. The first one I used it I only sprayed 1 row of tomatoes and was careful not to spray the tops of them. It didn't hurt the tomatoes and after a few days my grass was turning yellow. So I sprayed another row and was not as careful about not getting the spray on the tomatoes and again after a few days the grass was turning yellow and the tomatoes were doing good. Then I got brave and sprayed the rest of my tomatoes and sprayed grass and tomatoes and now 2 to 3 weeks later I have pretty tomatoes that are grass free. I did mix the spray as directed. I recommend this product.

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7 of 7 people found this review helpful

So far so good. Now let's see what happens over time.

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I barely applied the product and cannot say yet how effective it is. The product information booklet is extensive, but never states how many ounces to a gallon sprayer for use in home perennial beds. It says 8 oz. for an acre. I am guessing 1/2 oz./gallon for home use, but guessing is uncomfortable.

  Expert response:
Thank you for your review. I apologize that the label is extensive and confusing. We recommend using a surfactant like Non-Ionic Surfactant to help increase the efficacy of this product. If you use the surfactant, the recommended mixing rate for one gallon would be 2 tsp of surfactant with approximately .4 oz of the Grass out per gallon of water per 1,000 sq feet. Please let us know if you have any other questions.

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255 of 275 people found this review helpful

Bought this last winter so I'd have it when warm weather hit and the grass started growing again, Grass has been growing for about 1 month now, sprayed 3 times and grass is still green and going strong. I won't say don't buy this product because it might work for you, but I wouldn't buy it again or recommend it . Its been a waste of my time and money.

  Expert response:
Thank you for your comments! You did not mention whether you used a surfactant when applying the Grass Out Max. You are very unlikely to get satisfactory results using Grass Out Max or other clethodim products without the addition of a surfactant, such as Southern Ag Non-Ionic Surfactant for Herbicides: http://www.domyownpestcontrol.com/nonionic-surfactant-for-herbicides-p-1771.html We appreciate your feedback and your business!

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11 of 12 people found this review helpful

I could not keep up with grasses growing in my vegetable garden, especially difficult around my onions and garlic. I used Grass Out Max with 1 oz per gallon of water in a pump up sprayer with some surfactant and total kill of ALL grasses with no harm to vegetables. I'm a true believer.

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3 of 3 people found this review helpful

applied 12 ounces per acre to activitly growing fescue grass. I used 2 quarts of crop oil in 100 gallons of water. material had little if any effect on grass

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Although we been having lots of rain in Florida, I mixed and sprayed the grasses growing up through out ground cover beds. That grass is turning brown now and our landscape plants were not affected. I'm gonna spray over it again soon but it may not need that, I just want to be sure it's killing it. I'm thinking I'm done pulling grass out of our landscape borders from now on.

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5 of 5 people found this review helpful

followed recommended dosage on 1 acre alfalfa food plot that grass was threatening to take over. after only about 5 days grass going, going, and a few more days gone! Alfalfa came back strong and looks great now!

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21 of 21 people found this review helpful

I wasn't sure how well this would work. Killed the grass in the wife's flowers and in a patch of crimson clover. It took about two weeks to start seeing results. Everything looks pretty good. Product arrived quick.

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9 of 9 people found this review helpful

Was told this product would not kill my Knock Out Roses, now I have to replace 4 because they are dead but grass is still green. I will be returning this product

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2 of 2 people found this review helpful

Yup, it killed all the grasses, perennial and rye that snuck back into my deer hunters mixture (radishes turnips etc). Looks great again. I'm sure the deer appreciate the clean look now.

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tried this product on my fairly new strawberry bed. Used sparingly just in case. After several days I began to think id skimped a bit much on the mix. a few days later I begin to see the big grass yellow....and several days after pretty much all yellow........as in goodbye grass and hadn't bothered the berry plants at all......Time to hit it again full strength!!! If there's a downside I'd say the mix ratio should be more obvious for the home gardeners...it's very clear for those who are spraying on a large scale Also more appropriate size for the gardener...... I've enough now to last me for a loooooong time......hope there's no expiration date :(

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2 of 2 people found this review helpful

Grass Out Max is just the tool we were looking for! In a new orchard planting that was previously hay field we had tons of grass intrusion even after getting a strong initial kill before planting. Started using Grass Out Max around trees and at the base of perennial berry bushes and now only have to spot treat. We love this product!

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4 of 4 people found this review helpful

Sprayed clethodim on my arrowleaf clover to kill thick bermuda and it did the job. As others have reported it takes 2-3 weeks. Bermuda was very thick and now it's beaten down and the clover should make a great plot on into fall.

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I have two large wildflower gardens that were getting overrun by grasses of all kinds. I was real close to tilling everything in and starting over. I am so glad I tried Grass Out Max first. It takes a while but most of the grass is dying out and my wildflowers are winning. Worth every penny. I used a fifty gallon pto sprayer on my compact tractor. Also used extra in flower beds around the house. I am now my wife's hero if I wasn't already.

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21 of 22 people found this review helpful

I followed the directions religiously like I have done with every other product in my yard over the last 20 years. The end result is that my front lawn, Zoysia, is now 90% dead and I have more weeds than I do grass. Here it is the middle May & I am going to have replace my entire front lawn. I have used many such products in the past and have never been so disappointed. One bottle of this product will end up costing me thousands of dollars. Be warned.

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0 of 6 people found this review helpful

We have about 12000 square feet of lawn with curbing and beds throughout. Kentucky bluegrass creeping into the groundcover of the beds used to be a real problem. Then my neighbor introduced me to to Grass Out Max. He had used it the previous fall and his beds look great. He said it took about a month for it to work. I tried it and it and for the first couple of weeks didn't see much difference, but after a month it did the trick. Now just an occasional touch up application keeps the beds looking good.

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80 of 84 people found this review helpful

I have a bed of Euonymus ground cover in front of my home. My Kentucky Bluegrass lawn had invaded the bed and I had tried all kind of grass killers to get rid of it and not damage the Euonymus. The only thing I managed to do was kill the Euonymus and not the grass. I was ready to kill all the ground cover and cover the bed with mulch. I came across Domyown's website and the “Grass Out Max” herbicide. I bought it and the recommended surfactant for herbicides. I used the amount of herbicide and surfactant written in one of the reviews. (“If you use the surfactant, the recommended mixing rate for one gallon would be 2 tsp of surfactant with approximately .4 oz of the Grass out per gallon of water per 1,000 sq feet.”) I sprayed both the grass and Euonymus. You have to be patient with this herbicide. I noticed after a week the grass stopped growing, but the ground cover was not affected. I noticed the grass started to turn yellow after 2 weeks and was continuing to die. It has now been 5 weeks since I applied the herbicide. The grass has continued to wither and the ground cover has grown and filled out. I don't normally do reviews, but this herbicide isn't fast acting like “RoundUp”, but it does the job and has saved me both time and money.

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5 of 5 people found this review helpful

First off, the included pamphlets are very detailed and you might need to calculate the proper application for your situation. All that being said, I read a review that said to use 0.4 fluid ounces per gallon of mixture with 0.35 fluid ounces of a surfactant. This calculation was correct for my application once I worked out the proper rate from the pamphlets. I have an atv mounted 20 gallon sprayer that I use to spray food plots and around the house for all my needs. I needed this product to treat a field of sunflowers for wildlife on my property. I mixed the recommended rate that I received on this website and it really worked! All the field grasses were killed with the sunflowers looking not to be scathed. The product does take some time to work so don't expect a 24 hour turn around like some herbicides promote. It takes about a week to 10 days to work. I'm very happy with this product and this website to provide the insight into the specific application for my needs. I am now thinking to use this product on my flowerbeds and garden beds that get infested with grasses after I work so hard to prepare the areas. I'm going to research the provided pamphlets to ensure I'm mixing the correct dosage but this website does provide a valuable resource with their expertise.

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1 of 1 people found this review helpful