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Compare to Select 2EC and Arrow 2EC Herbicide. With Grass Out Max you get the same active ingredient for less expense. It is highly recommended that you use a surfactant with this product.
Grass Out Max is a selective post-emergent herbicide used to control annual and perennial grasses. It is labeled for most landscape, home and garden, ornamental, agricultural and non-crop uses. The unique feature of Grass Out Max is that it will ONLY kill grasses and NOT effect flowers, shrubs, broadleaf crops or other broadleaf plants. Grass Out Max contains 26.4% Celthodim Herbicide and effectively kills more than 50 different grasses.
Grass Out Max is only labeled for use on clover when used in the states of Idaho, Oregon, and Washington.
| Active Ingredient | Clethodim 26.4% |
|---|---|
| Target pests |
Barnyard grass, Cheat grass, Canary grass, Crabgrass (hairy, large, smooth, southern), Foxtail, Goose grass, Rye grass, Annual Blue grass (Poa annua), and many others Will Not kill Flowers, Shrubs, Broad-leaf Crops or other Broad-leaf Plants See label for complete list |
| For use in |
Landscape, Home and Garden, Ornamental, Agricultural and non-crop areas * See label for complete list |
| Application |
16 oz. per acre Add a crop oil containing 15% emulsifier at 1 qt. per acre * Use a Surfactant to Increase Effectiveness * See label for complete application instructions |
| Pet safe | Yes, if used as directed on Label |
| Formulation | Professional Product |
| NOT FOR SALE TO |
AK, AZ, CA, HI NY, VT (Restricted To Licensed Applicators Only) |
| Shipping Weight | 2.30 lbs |
| Manufacturer | Agrisel |
| UPC | 858916001204 |
| EPA Registration | 72159-15 |
Ground Application
Use a minimum of 5 gallons and maximum of 40 gallons of spray solution per acre. Use of sufficient spray volumes and pressure is essential to ensure complete coverage.
Under the following conditions a minimum of 10 gallons per acre is required: narrow row soybeans, broadleaf herbicide tank mixes, perennial grasses, volunteer corn, drought or stress conditions heavy grass pressure or when grasses are at or near maximum height. Failure to use a minimum of 10 gallons per acre under these conditions can result in poor coverage and reduced grass control requiring repeat applications. Spray pressures should reflect a minimum of 30 psi and a maximum of 60 psi at the nozzle. Do not use flood nozzles.
Applications to onions (dry bulbs and green), garlic, and shallots (dry blubs and green) should be made in a minimum of 20 gallons of spray solution per acre.
Grass Out Max
By Betty on 06/01/2017
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.
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253 of 273 people found this review helpful
Good grass killer
By Joseph on 08/04/2014
Verified Purchase
I purchased this product to use on my food plots. It arrived timely, and I mixed the product with 2.5 oz per gallon of water. I mixed in some sticker as indicated, and used a backpack sprayer to apply. I didn't see any immediate action (first couple of days) but finally noticed that it was working. It took out the crab grass in my clover field without harm to the clover. My plots are about 1/3 acre; I would suggest that you map out a route to insure complete coverage if you use hand sprayer like I did, as I missed a few spots do to walking deviations. I recommend this product for use in food plots.
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142 of 149 people found this review helpful
Takes Patience, But Very Effective
By Happy on 09/29/2012
Verified Purchase
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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79 of 83 people found this review helpful
grass out
By Rusty on 01/12/2015
Verified Purchase
I don't think the product works. I have applied it twice and at this point no action. unless it kills the grass soon it was wasted money.
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61 of 66 people found this review helpful
Grass Out Max
By Mike on 06/20/2012
Verified Purchase
Grass Out Max (Clethodim Herbicide) can only be used only in non bearing vineyards per the product label. Non-bearing fruit and nut crops are plants that will not bear fruit or nuts for at least one year following AGRISEL GRASSOUT MAX HERBICIDE application.
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0 of 1 people found this answer helpful
The landscapers that removed our grass and planted the above ground covers did not remove all the crabgrass roots. We now have crabgrass growing in the ground covers.
If not what product will.
Grass Out Max (Clethodim Herbicide) is designed specifically for killing grassy weeds including fescue in ornamental areas without harming desirable shrubs and roses, it is not for use in lawns at all.
Since poa annua is so closely related to cool seasons grasses, like fescue and ryegrass, there are not any herbicides that can be applied to kill the poa without also harming the fescue and ryegrass. We do have one product called Prograss EC Herbicide, but it is very expensive. We recommend spot treating the poa annua with a glyphosate product and then just reseeding those areas.
Unfortunately, we do not carry any herbicides that are labeled to kill zoysia in a tall fescue lawn. You will either need to spot-treat the unwanted grasses with a glyphosate product like Roundup Quik Pro and reseed. Fusilade II can be used to get rid of Bermuda grass in tall fescue. You will also need to add a nonionic surfactant for best results. Please be advised that Bermuda grass is extremely difficult to control and you will likely need to make several applications. With Fusilade II Herbicide, it is recommended to apply the product in the early morning hours or late evening hours when the temperatures are below 85 degrees Fahrenheit.
Grass Out Max (Clethodim Herbicide) will likely kill your grass since it is only safe for ornamentals not for use on turfgrass areas. Image Kills Nutsedge Concentrate & Certainty Herbicide are both labeled to control poa while being safe on Zoysia lawns
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1 of 1 people found this answer helpful
After using Grass Out Max you can triple rinse the sprayer or use a spray tank cleaner to ensure no residual is left.
Is this a product safe for yards I'm looking for a product to control grassy weed and Turf?
Grass Out Max (Clethodim Herbicide) is not safe to apply over desired grass like Bermuda and Zoysia.
Can it be used for nutsedge control?
Grass Out Max (Clethodim Herbicide) is not labeled to control nutsedge, it is only for grassy weeds. Please review our Nutsedge products here for alternatives.
If I spot spray grass out max on my dormant bermuda grass, to kill winter weeds/grasses, will it damage it? There is going to be no rain in next 7 days.
Grass Out Max (Clethodim Herbicide) is not labeled to be used bermudagrass turfgrass as it is for controlling it in cool season turfgrasses and other areas. Keep in mind that if the soil temperatures are below 55 degrees a post-emergent may not work. We generally recommend uaing Roundup QuikPRO - 5 x 1.5 oz. packs when Bermuda is completely dormant as it gives the best results even in colder temperatures
Yes, Grass Out Max (Clethodim Herbicide) is labeled to be applied around raspberries.
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Will this kill off Perennial Rye grass in a mostly Kentucky Bluegrass (KBG) lawn without damaging the KBG? Cool Season Zone 6b. If not, is there anything that will? My front lawn is less than 2k sqft and don't want to burn it all down because there's still good KBG. I overseeded Rye into my lawn in Fall 2022 and hate how it looks.
We have evergreen creeping Juniper lining our driveway. Grass has invaded and it's looking rough. Will this product kill the grass and NOT the juniper?
Does it need to be a certain temperature to use Grass Out?
Grass Out Max will work best when plants are young, but actively growing. You can make applications usually starting around 60 degrees when the plants first start growing, and continue to make applications until temperatures reach about 85 degrees, but no higher, or you can cause damage to desirable growth.
Grass Out Max (Clethodim Herbicide) does target actively growing listed grasses to listed and well established areas. Avoid applying to new planted areas and only use as directed on the label.
Grass Out Max (Clethodim Herbicide)
Rating: 4.3 (110 Reviews / 194 Q&A)
