Customer Reviews for Grass Out Max (Clethodim Herbicide)

Effective and reasonable price for grass control in clover food plots. Same active ingredient as Arrest Max.

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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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This has been an excellent product to kill grass that invades the Junipers and other plantings where grass does not belong. It is a little slow acting, but very effective at killing the grass, without harming the plant.

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Love this stuff for killing grass in my food plots. Customer service scores 100%. I had a package arrived damaged, and I called and it was fixed immediately.

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Had Johnson grass try to take over my sunflower plot this spring, and the Grass Out Max used with Surfactant took care of the problem!

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I was have issues with brome, bermuda, and johnson grass popping up in a new pollinator planting and could not use glyphosate due to damage the seedling forbs would suffer. Someone experienced in land management told me about this product and so far it has not harmed the forbs. I mixed on the lower side but it seems to be doing the job.

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Wanted something that would kill grass that was planted in flower beds unintentionally by overflow from overseeding my lawn. This product is easy to apply and killed the grass without harming other plants.

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Tried Grass Out Max on newly planted alfalfa that had lots of grass. Took about 10 days to see results and it works really well. Also tried on Cowpeas and it is working on grass slowly. So far I am empressed with this product.

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Grass Killers usually take longer to work much longer than your average weed killer which you see results in 3 days if not the next day grasses are different. It's not unusual to see products like this which is grass only killer work the way they do for the length of time it takes.

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Although we are in the beginning stages of a drought, and the grass that needed spraying was stressed and tough, I decided to spray the my strawberries and around my blueberry plants. At first there did not seem to be any grass that appeared stressed. Then we got a quick shower and the younger grass began to yellow and then died. The older grass and Bermuda grass have begun yellowing. This means that the Grass Out spray is trans-locating to the roots and the yellow grass will die. Even long strands of Bermuda Grass which are growing out over gravel are yellowing and will ultimately kill the host plant to its roots. Grass Out is a great product that is deadly to grass and not harmful to my strawberry plants and to other broad leaf of the same type.

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Worked extremely well but please be patient it could be 2 weeks before you see that it's working

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I used a lawn company till this year, my problem has always been Poa Annu Bluegrass. bought this product appplied 1 oz per gallon with my hose end sprayer results were visible 2-3 days after use. Use a sufflant also. bought the smaller size this time but will buy the bigger next year for two applications at separate times. NO MORE LAWN COMPANIES WASTING MY TIME AND MONEY!

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We recently had our sod removed and replaced with Perineal Peanut and Sunshine Mimosa. I was having a problem with Crabgrass growing within the ground covers and decided to try Grass Out Max. I tested a few areas and found that Grass Out Max really works as advertised. About a week after applying the grass blades started to look a little greyish in color. Within two weeks the grass was dead with no harm to the ground covers.

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This is an over-the-top grass killer, meaning it won't affect most non-grass plants so you can spray it on weedy grass that is growing in beds among desirable plants. I sprayed it on heavy infestations of torpedo grass. The first effects showed at 7 days when the tips of the grass died. After about 2 weeks most of the grass appears totally dead and there was no effect on the surrounding desirable plants. I was impressed with this product and highly recommend it.

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It killed all the grass with ease at a 1% V/gallon of water. And did not hurt the potatoes.

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I'm using this to control weeds on my lawn, which is not grass but mini-clover. It has really helped us create a lovely clover lawn. In fact, if is full of little white clover flowers, which will eventually re-seed the lawn and ensure a robust result. Price is right, too.

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Used to kill grass growing around an up through my my young arborvitae. Did an excellent job just needed to be patient. It took me two to three weeks to see the results. Applied at labeled rates for hand spraying: Clethodim - 0.33 oz to 0.65oz per gallon Non-ionic surfactant - 0.33 oz per gallon

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Use to kill grass in my sunflower patch. Mixed at 0.5 oz per gallon. Light spray not soaking. Killed the grass with minimal burning or setback to the sunflowers. They were about 1’ tall at the time.

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I've tried a few other products to eliminate the grasses from beds of myrtle and other ground covers. Nothing seemed to work. After two applications of the Grass Out Max, the unwanted grasses are disappearing from view. The little bit of die-back in the perimeter lawn areas was not unexpected. I used a wetting agent to ensure good contact with the grass blades. Total success might not be evident for a couple of months, but results to date have been very positive.

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I have used this product twice. The first time more as a test to see if it damaged recently planted clover. I choose an area in my yard where grass had completely taken over the clever. In about a week the grass turned yellow then dried out. The clover is starting to grow better. The second time was only four days ago. About half of the grass is yellow and the clover is looking good. I mixed a little more than an ounce to 5 gallons of water and some surfactant. I may spray again in a week.

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wont kill the grass as fast as Glyco but it did not harm the Clover and thats what I needed it to do

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Works as advertised. Added a surfactant and used in sunflower field. Took about 10 days to kill off grass

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Sprayed 12 Oz/Acre 8 hours before a 1/2 inch of rain and almost all grass in my food plot turned brown within 1 week. Remaining grass was brown and dead by the end of 2nd week. Plot was planted 4 weeks before application and has clover, winter peas, alfalfa and turnips which never showed signs of stress.

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Got this product quick and it worked well to kill the grass that was growing in my clover foodplot I had planted for deer.

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This product works well on POA. I will definitely purchase again.

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Does what it says. Perineal beds are over sprayed once in spring.... no grass weeds all summer. It's very effective and does kill ornamental grass so be careful... will not harm shrubs or other non grass plants.

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I sprayed 3 gallons via a backpack sprayer on my clover plot on 5-18 20. Was back out there today, 5-27-20, and the grasses were looking like there are heading for being dead. It is not an instantaneous kill but it is working like it should. The clover looks great with all the grasses dying out. I am very pleased.

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Quick shipment and delivery. Package was as described. I would recommend this company.

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Dang it I wish I could remember the lady's name that helped me out when I called. Anyway not knowing what kind of junipers I had as well as what kind of grassy weeds I had, she pointed me to grass out max, long story short, 1/2oz to a gallon (which I trusted her, ( I felt like it wouldn't be enough put I trusted her :) with in 2 - 3 weeks it knocked out the weeds without effecting my junipers. awesome stuff, highly recommend.

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This is a herbicide that is specific to grass species. Does not harm most other types of plants. BUT read the very detailed instructions carefully!! Some (a few) ornamental plants could damaged by this Grass Out Max, and there is a comprehensive list in the instructions. I used this in flower beds/landscaping where invasive grasses like Bermuda were growing in and around desired ornamental plants. I have seen a pretty good kill of the grasses. However, my area was starting to get pretty dry when I sprayed. The instructions will tell you Grass Out Max is effective on actively growing grass, but not as effective on drought-stressed grass. I have a few areas I will have to respray after the grass gets some water. Two things to know: this Grass Out Max has to have time to travel through the grass blades (leaves) down into the roots. You won't see the grass dying for several days. Be patient, it's working. Second, shield adjacent lawn grass areas from the spray ( I sprayed with a 2 gallon tank garden sprayer), use a tarp or something similar. Remove right after you spray, and be careful not to allow the part of the tarp that has wet spray on it to drag over the grass. Overall very satisfied with results I got.

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