Acuron Herbicide

Acuron corn herbicide defeats tough weeds that current products are missing.

To put you back in control of tough weeds, we developed a powerful herbicide that delivers more residual control of more weeds with a single product than ever before. Acuron is a step change in weed management.
  • Contains four active ingredients and three complementary, overlapping modes of action for multi-targeted control of the most difficult weeds in corn
  • Provides broad-spectrum control of 70-plus broadleaf weeds and annual grasses in corn for clean fields you will be proud of
    • Giant ragweed, common ragweed, Palmer amaranth, waterhemp, marestail, kochia, cocklebur, morningglory, Russian thistle
  • More than 800 trials show bicyclopyrone helps Acuron outperform all competitors including Corvus®, Harness®, SureStart®, TripleFLEX® and Verdict® herbicides and provide greater consistency of control
  • When used at a full rate, Acuron will provide the best chance for one-pass weed control, saving you time and money
  • Excellent pre- and post-emergence crop safety enables Acuron to be applied from 28 days pre-plant (including burndown) up to 12-inch corn

Don’t let weeds get the last laugh

Don’t let weeds get the last laugh

Acuron Formulation

Syngenta announces registration for Acuron herbicide

Acuron TV Spot

Acuron Registration

Acuron Registration

Acuron Formulation

Acuron Formulation

Acuron Virtual Weed Tour


Acuron performance proof

Growers across the U.S. were able to experience the Acuron advantage during the 2015 season and see for themselves what more than 800 field trials featuring bicyclopyrone have already proven: Acuron is a step change in weed management. Explore the map below to see how Acuron defeats tough weeds current products are missing.



Harness Xtra

No Competitor Data


Touchdown Total

Results 1– of from map


Download Supporting Acuron Documents

20151782015619144124_Retailer-Formulation.jpg PDF
Acuron Formulation Q&A(PDF)
2015755201561617642_Acuron-Tech-Bulletin.jpg PDF
Acuron Technical Bulletin(PDF)
2015346201542814955_Federal-Release.jpg PDF
Acuron corn herbicide receives federal EPA registration(PDF)
201554620154284342_Acuron-herbicide-Brochure.jpg PDF
Acuron Brochure(PDF)

Know your weeds

Acuron delivers dramatically improved control and more consistent control of the toughest broadleaf weeds and grasses in corn.

left arrow
Palmer Amaranth
Giant Ragweed
right arrow

Waterhemp produces up to 1 million seeds/plant and can grow as much as 1 inch/day. The average height is 4-5 feet tall, with some weeds reaching up to 12-feet tall.

The pollen from these weeds can travel ½ a mile or more and because of the cross pollination that occurs, resistance can spread quickly.

Palmer Amaranth

Palmer amaranth thrives in reduced-, minimum- or no-tillage systems because it germinates close to the soil surface. It can produce 10,000 to 100,000 seeds/plant and has the potential to overtake the crop due to its rapid growth and aggressive competition.

Palmer amaranth has prolific seed production and germination throughout the season. It has a faster growth rate and is more competitive than other pigweed species, with growth rates approaching 3 inches/day.

When allowed to compete throughout the growing season, Palmer amaranth can create yield losses up to 91% in corn. It can reach 8 feet in height.


Once established, morningglory is very difficult to control with post-emergence applications of herbicides. It competes with corn crops for nutrients and has the potential to reduce yield.

Morningglory can produce up to 500 seeds/plant, and, due to an extremely hard seed coat, some seeds can remain viable in the soil for more than 50 years.


The first glyphosate-resistant weed identified in U.S. row crops in 2000, marestail is a dangerous weed. It produces up to 200,000 seeds/plant and grows up to 5-6 feet tall. The seeds are highly mobile, which results in rapid spread.

Marestail usually germinates in fall and spring, but can germinate year-round.

Giant Ragweed

Field research demonstrates that season-long competition from just 2 giant ragweed plants per 110 square feet can reduce corn yield by 13%.

Giant ragweed often grows taller than the crop, sometimes up to 5 feet taller. It can produce up to 5,100 seeds per plant.


Nov 9, 2015

Acuron® corn herbicide named Agri Marketing magazine’s 2015 New Product of the Year

Read more »

Oct 19, 2015

Growers, ag experts review Acuron® corn herbicide first-year performance

Read more »

Apr 28, 2015

Acuron corn herbicide receives federal EPA registration

Growers looking to control difficult weeds like waterhemp, giant ragweed and Palmer amaranth will have access to Acuron corn herbicide from Syngenta, now that it has received registration from the federal EPA. Read more »

Dec 8, 2014

Team of scientists helps combat difficult weeds through development of new corn herbicide

A team of 12 scientists is making significant headway in the battle against difficult weeds through their work at Syngenta on the Acuron™ corn herbicide technical team. Read more »

Nov 13, 2014

Acuron corn herbicide trials shown across the nation leading up to anticipated registration date

In 2014, Acuron corn herbicide from Syngenta, which features four active ingredients, including new bicyclopyrone, and three complementary modes of action, was evaluated at 167 plot locations. These locations included 95 on-farm Syngenta locations, 54 university locations and 18 distributor locations spread across 35 states. Read more »

What we're talking about

RSS Know More Grow More – Corn

  • Michigan debut of Acuron shows multiple benefits
    No grower wants to see tough weeds in their field at harvest. After all, weed seeds at harvest get deposited in your weed seed bank and create costly, time-consuming weed challenges for years to come - Know More, Grow More.
  • Growers get the last laugh on tough weeds in the northern plains
    After receiving EPA registration in April 2015... Acuron® corn herbicide delivered broad-spectrum weed control against the toughest broadleaf weeds and grasses in corn - Know More, Grow More.
  • Acuron defeats weed resistance in South Dakota
    SOUTH DAKOTA: Many farmers in the Midwest are fighting an uphill battle due to weed... The post Acuron Acuron defeats weed resistance in South Dakota first appeared on Syngenta - Know More, Grow More.
  • Acuron defeats weeds resistance in Iowa
    IOWA: Growers in Iowa know that the best way to have high yield at the... The post Acuron defeats weeds resistance in Iowa first appeared on Syngenta - Know More, Grow More.
  • Acuron delivers consistent weed control in Minnesota
    MINNESOTA: It’s plain and simple. Weeds are getting harder to control. Resistance is expanding and... The post Acuron delivers consistent weed control in Minnesota first appeared on Syngenta - Know More, Grow More.

Contact the Acuron Tech Team

A team of Syngenta scientists and agricultural professionals from across the Corn Belt have contributed to the development of the company's newest weed-management solution, Acuron herbicide. This impressive group makes up the "Acuron Tech Team." From R&D scientists to formulation developers, they have worked together in the laboratory and in the field to bring Acuron to market.

Request More Information
Acuron Tech Team
Name is required
Please enter a valid email address
Please enter a valid zip code

Thank you for your interest in Acuron herbicide.

The Tech Team is reviewing your inquiry and will get back to you as soon as possible.

Where to buy Acuron

Talk to your local Syngenta retailer to find out how Acuron can help you get the last laugh on tough weeds. Connect with us at and join the conversation using #toughweeds.

Find a Retailer