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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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265 of 286 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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144 of 151 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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82 of 86 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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62 of 67 people found this review helpful
Grass Out Max
By Mike on 06/20/2012
Verified Purchase
As stated on the product label, "Do not mow area for two weeks prior to or after AGRISEL GRASSOUT MAX HERBICIDE application."
You should wait at least 2 days after an application of Grass Out Max (Clethodim Herbicide) to mow.
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1 of 3 people found this answer helpful
Grass Out Max (Clethodim Herbicide) is not labeled for use in grass pastures and would not be recommended.
Grass Out Max (Clethodim Herbicide) can be applied to clover crops 15 days before grazing, feeding, or harvesting (cutting) for forage or hay, if used as directed on the product label.
We have lawn bordering our rocked beds, how long after spraying do we need to avoid rain so that run off from the beds does not kill our border lawns
Grass Out Max (Clethodim Herbicide) should be rainfast within 4-6 hours after application however we typically advise to have 24 hrs before any rainfall is expected.
Grass Out Max targets grassy weeds like poa annu but also kills grasses including turfgrass. At this point only time will tell if the bermuda will recover. Product labels should always be reviewed and followed exactly to be sure they are used properly.
For treating poa annua in bermuda you need to use a selective herbicide such as Image Kills Nutsedge for small areas, or Certainty or Negate for larger areas. Please review our How to Get Rid of Poa Annua Treatment Guide for more information.
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1 of 2 people found this answer helpful
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Grass Out Max (Clethodim Herbicide)
Rating: 4.3 (110 Reviews / 251 Q&A)
