Acuron Flexi - Herbicide | Syngenta

Delivers powerful, broad-spectrum weed control with added flexibility

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Product Highlights

  • Acuron® Flexi combines three active ingredients, including bicyclopyrone, and two effective modes of action (Groups 15 and 27) in one convenient premix for a multi-targeted approach to weed control. 
  • Delivers improved and more consistent control of broadleaf weeds and annual grasses in corn versus competitive herbicides.
  • Controls tough weeds like giant ragweed, kochia, marestail, Palmer amaranth and waterhemp.
  • Registered in field corn, seed corn, silage corn, sweet corn (pre-emergence only) and yellow popcorn (pre-emergence only).

Added Flexibility with Acuron Flexi

Soil type, tank-mix partners and weather conditions vary, so it’s important to have a herbicide that delivers effective weed control with application, geographic and tank-mix flexibility: 


Excellent pre- and post-emergence crop safety enables application flexibility from 28 days pre-plant up to 30-inch corn

Where registered, Acuron Flexi can be used without soil type restrictions
Tank-mix compatibility

Does not contain atrazine or glyphosate but can be tank mixed with herbicides based on farming practices



Tony Bomkamp
Tony Bomkamp
Muscoda, WI

"The most valuable thing I see about Acuron Flexi is that it keeps all the weeds out, I can use it in my areas I can’t put atrazine on, and that I’m applying one time. Acuron Flexi I would definitely use again. It did a very good control on my weeds.”
Mike Anders
Mike Anders
Grower and Retailer
Nerstrand, MN

"The most beneficial feature of Acuron Flexi corn herbicide is having multiple modes of action already in the premix and also having the ability to add atrazine where we can. Our customers that have used Acuron Flexi have seen very good performance. We had tough growing conditions this year with too much rain and heat and Acuron Flexi was up to their expectations."
Alan Borton
Alan Borton
Wilmington, OH

"We switched to Acuron Flexi after having a good bit of weed outbreaks and have seen really good results."


Download Supporting Acuron Flexi Documents

2017945201741819642_Acuron-Flexi-Options.jpg PDF
Acuron Flexi Use Options(PDF)
2017892201739211312_Acuron-Flexi-Brochure.jpg PDF
Acuron Flexi Brochure(PDF)
201716920171219215536_Flexi-vs-Comp.jpg PDF
Acuron Flexi vs. Competitors Brochure(PDF)
20168352016211151235_Acuron-Flexi-Reg.jpg PDF
Acuron Flexi Registration(PDF)

Acuron Flexi Performance

Acuron Flexi delivers dramatically improved control and more consistent control of the toughest
broadleaf weeds and grasses in corn.
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Acuron Flexi vs. Resicore Comparison
Muscoda, Wisconsin Acuron Flexi
Acuron Flexi vs SureStart Comparison
Acuron Flexi over time Fulda, Minnesota
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Gilbert, Iowa

Syngenta trial. All treatments applied pre-emergence. Photos taken 73 days after treatment

Acuron Flexi 2.25 qt/A
Resicore 3 qt/A

Muscoda, Wisconsin

Acuron Flexi 2.25 qt/A applied pre- emergence in Tony Bomkamp’s field.

Photo taken 62 days after treatment.

Rochester, Minnesota

University of Minnesota trial. All treatments applied pre-emergence. Photos taken 56 days after treatment.

Top Left: Verdict 14 fl oz/A
Top Right: Corvus 5.6 fl oz/A
Bottom Left: Acuron Flexi 2.5 qt/A
Bottom Right: SureStart 2 pt/A

Fulda, Minnesota

Acuron Flexi 3 pt/A + atrazine 1 pt/A over time

From Top to Bottom:
June 7, 2016
June 15, 2016
June 24, 2016


Mar 6, 2018

Syngenta identifies key strategies to manage the spread of resistant Palmer amaranth

Syngenta warns that glyphosate-resistant Palmer amaranth, one of the most threatening weeds in Southern corn and soybean fields, continues to spread into the Midwest. Knowing how to defeat this tough weed is imperative to protect crop yields and manage future resistance.Read more »

Jan 30, 2018

Syngenta stresses the importance of a start-clean, stay-clean approach to manage resistant marestail

Marestail, also known as horseweed, is top of mind for many corn and soybean growers preparing for the 2018 growing season.Read more »

Feb 23, 2017

Syngenta identifies key strategies to fight weed resistance

As corn and soybean growers deal with an expanding and intensifying threat of resistant weeds, Syngenta is recommending strategies for managing weeds that begin early in the season.Read more »

Jan 5, 2017

Syngenta warns: Palmer amaranth top of weed watch list yet again

Syngenta agronomists warn that last year's most notorious weed, Palmer amaranth, will continue to hold its place as the No. 1 weed to monitor in 2017.Read more »

Nov 14, 2016

Growers see strong 2016 performance from Syngenta corn herbicides: Acuron® and Acuron® Flexi

As weed resistance continues to spread, Acuron® and Acuron® Flexi corn herbicides delivered broad-spectrum control to defeat tough broadleaf weeds and grasses during the 2016 season. Read more »

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