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SquareOne Herbicide

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SquareOne Herbicide from FMC Professional Solutions has just been approved for registration by the EPA and is working on getting individual state registrations. Contact a sales rep. for a complete list of registered states and to see as Square One Herbicide becomes registered in your particular state.

Target Pests

SquareOne Herbicide can control or suppress bittercress buttercups carpetweed chickweed clover crabgrass cudweed deergrass dallisgrass dandelion dollar weed foxtail goldenrod goosegrass ground ivy henbit kochia yellow nutsedge pigweed plantain redweed smartweed spurge wild garlic wild onion wooserrel and many other listed weeds.

For Use In

SquareOne Herbicide is for use in institutional and residential turf athletic fields sod farms golf courses and any other non-crop areas.


Application Equipment: Power sprayers fitted with spray wand/gun may be used for spot treatments. Backpack and compression sprayers are also appropriate for small turfgrass areas and spot treatments. Wands fitted with a flat fan nozzle tip should be held stationary at the proper height during application. A side to side or swinging arm motion can result in uneven coverage.

Application Method: Adjust sprayer nozzle to give a coarse spray. Apply to the center of the weed and spray to lightly cover.

Coverage Area

Each finished gallon of SquareOne Herbicide should cover approximately 1,000 square feet.

Time to Kill

SquareOne Herbicide begins to kill immediately as soon as the target weeds are contacted by the chemical and may take up to a couple weeks to completly kill off unwanted vegetation in turf areas.

Mix Rate

When applied as directed under the conditions described, the following established turfgrasses are tolerant to SquareOne HERBICIDE at the recommended use rates in a range from 8.0 to 18.0 ozs/acre or 0.184 to 0.413 oz./1,000 sq. ft.

Active Ingredient

Carfentrazone-ethyl 3.9%, Quinclorac 66.1%

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