Acuron - Herbicide | Syngenta

Upgrade Your Corn Herbicide

To put you back in control of tough weeds other products are missing, we developed a powerful corn herbicide that delivers more effective and more consistent control of more weeds with a single product than ever before.

Upgrade Your Corn Herbicide

To put you back in control of tough weeds other products are missing, we developed a powerful corn herbicide that delivers more effective and more consistent control of more weeds with a single product than ever before.

Explore the Acuron digital
corn maze.

Step inside this interactive corn maze and discover what you stand to gain by upgrading to Acuron herbicide.


Click, View, Share

We support those who want to defeat tough weeds as much as we do. Click, view and share one of our Acuron® corn herbicide videos on Facebook or Twitter, and we'll donate $5 to the National FFA Organization.

View the Video Series

Product Overview


  • Contains four active ingredients and three effective sites of action (Group 5, 15 and 27) for multi-targeted control of the most difficult weeds in corn, including resistant weeds, and built-in weed resistance management.

    • More than 1,000 trials show its unique active ingredient, bicyclopyrone, helps Acuron outperform all competitors, including Corvus®, Resicore®, SureStart®, TripleFLEX® and Verdict® herbicides, and provide greater consistency of control.

  • Provides broad-spectrum control of 70-plus broadleaf weeds and annual grasses in corn for clean fields you can be proud of including:

    • Giant ragweed, common ragweed, Palmer amaranth, waterhemp, marestail, kochia, cocklebur, morningglory, Russian thistle.

  • When used at a full rate, Acuron provides 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.

  • Regardless of weed spectrum, soil type, application preference, tillage system, weather condition, farm size or field location, Acuron will control tough weeds effectively and safely.

Max Yield

  • Trials show Acuron protects the crop from yield-robbing weeds better than any other herbicide and out yields other products, putting more bushels in your bin.

*Trial information:
Acuron 1X PRE herbicide compared to Verdict® 1X PRE herbicide – Head to head in 15 replicated trials<
Acuron 1X PRE herbicide compared to Corvus® 1X PRE herbicide – Head to head in 18 replicated trials<
Acuron 1X PRE herbicide compared to Resicore® 1X PRE herbicide – Head to head in 18 replicated trials<



See How Acuron Performed in Your Area

Enter your zip code below to see for yourself how growers near you upgraded their weed control with Acuron. Still not convinced? Use our competitor filters to see how Acuron performed against your current corn herbicide.



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Download Supporting Acuron Documents

2019606201913013561_thumbnail-acuron-brochure.jpg PDF
Acuron Brochure(PDF)
2018712201844153450_resicore-brochure.jpg PDF
Acuron vs. Resicore Brochure(PDF)
201715920171220163133_Acuron-Tech-Guide.jpg PDF
Acuron Technical Guidelines(PDF)
201843120184322336_Acuron-Weeds-Controlled.jpg PDF
Acuron Weeds Controlled(PDF)

Know Your Weeds

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

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Palmer Amaranth
Acuron Pre-emergence Palmer amaranth
Acuron Pre-emergence ivyleaf morningglory
Giant Ragweed
Pre-emergence control of giant ragweed
Acuron Resistance Fighter Carousel Image
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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.


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.

Pre-emergence control of Palmer amaranth

49-57 days after emergence (DAE)


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.

Pre-emergence control of ivyleaf morningglory

62 days after treatment (DAT)

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.

Pre-emergence control of giant ragweed

49-58 days after emergence (DAE)

Resistance Fighter®
When it comes to the future of your operation, actions speak louder than words. For decades, Syngenta has been collaborating with university experts and conducting research to solve problems associated with resistant weeds. See how our Resistant Fighter program has your back.


Feb 23, 2018

Minimize threat of resistant kochia by planning ahead, Syngenta advises

Kochia can be exceptionally competitive with corn, soybean and cereal crops. Take control of the weed by treating it with Syngenta residual herbicides and take back your field.Read more »

Feb 20, 2018

Syngenta identifies key approach to protect yields from resistant giant ragweed

As corn and soybean growers continue the fight against weed resistance, Syngenta provides key insight into how to manage giant ragweed, a large-seeded broadleaf weed that truly lives up to its name.Read more »

Feb 15, 2018

Syngenta recommends overlapping residuals for season-long waterhemp management

Due to the expanding threat of resistant waterhemp, Syngenta urges corn and soybean growers to prepare a management strategy that includes overlapping residual herbicides with multiple, effective modes of action (MOAs) for the upcoming growing season.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 »

Jan 16, 2018

Syngenta and university researcher offer key strategies for managing resistant weeds

In the battle against herbicide-resistant weeds, university and industry research has cast doubt on common assumptions and is rewriting some of the "rules" for managing resistant weeds.Read more »

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