Thanks for signing up!

Look for the Digest in your email twice a month.

Follow Us

Sign up for our Digest to receive the latest agronomic insights and crop management advice for your primary growing region delivered twice a month to your inbox.

Importance of Multiple Modes of Action

August 31, 2016

Weed resistance is expanding and growers are looking for new tools to control the toughest weeds in corn. Multiple modes of action are critical for effective management against tough weeds.

Syngenta recently conducted a trial to highlight the importance of using multiple effective modes of action, and is featuring the results at Farm Progress Show. This trial explains why Syngenta herbicides Acuron®, Acuron Flexi and Halex® GT outperform other herbicide products.

In a greenhouse trial* located in Slater, IA, 4-inch pots were filled with soil, seeded with Palmer amaranth and then each pot was sprayed with either:

  • Acuron, Corvus®, or SureStart® herbicide or one of their individual active ingredient components pre-emergence
  • Halex GT or Armezon® PRO herbicide or one of their individual active ingredient components post-emergence

The results of this trial show that Syngenta herbicides have more effective modes of action for residual control compared to Corvus, SureStart and Armezon PRO.

With Acuron, growers get burndown plus residual through a combination of bicyclopyrone, mesotrione, S-metolachlor and atrazine. Acuron Flexi also provides improved and more consistent control with added flexibility, through a combination of bicyclopyrone, mesotrione and S-metolachlor.

Halex GT is Glyphosate with Residual™ and provides a more convenient alternative to any other post-emergence, straight glyphosate corn herbicide program. Containing mesotrione, S-metolachlor and glyphosate, Halex GT delivered more effective residual control of Palmer amaranth compared to the components in Armezon PRO.

Multiple effective modes of action are needed to control the toughest weeds in corn.

Sign up for the Know More, Grow More Digest to receive twice-monthly agronomic e-mail updates pertinent to your area.

Learn more about Acuron at Acuron-Herbicide.com. Connect with us at social.SyngentaUS.com and join the conversation using #toughweeds.

*Treatments were sprayed with 140 L/ha (15 gal/A) water carrier volume. The trial was held at a greenhouse temperature of 75-80 degrees F. Herbicide application rates and individual component rates were based on the full labeled rate of each herbicide pre-mix product.

All photos are either the property of Syngenta or are used with permission.

©2016 Syngenta. Important: Always read and follow label instructions. Some products may not be registered for sale or use in all states or counties. Please check with your local extension service to ensure registration status. Acuron is a Restricted Use Pesticide. Sale, use and distribution of Acuron Flexi is prohibited in Nassau and Suffolk counties in the State of New York. Acuron®, Halex®, Glyphosate with Residual™ and the Syngenta logo are trademarks of a Syngenta Group Company. Armezon® is a trademark of BASF Corporation. Corvus® is a trademark of Bayer. SureStart® is a trademark of Dow AgroSciences, LLC.