Blog Post

Protect Corn, Soybean Yields with Post-Emergence Herbicides

It might not look identical from state to state, town to town or even field to field, but weed pressure is everywhere. Growers can’t afford to let weed competition threaten yield potential – that’s why season-long weed management is essential.

What to do?

Weeds depend on routine to survive. Growers need to build diversity into their weed management programs to prevent further development of herbicide-resistant weeds. Weed management programs that rely on one herbicide increase the potential for herbicide-resistant weeds to develop. As a result, the herbicides used to control these weeds may become ineffective.

Syngenta has a strong lineup of post-emergence corn and soybean herbicides:

  • Corn: Halex® GT tank-mixed with dicamba or atrazine helps maintain clean fields throughout the season. Halex GT can be applied as a post-emergence only treatment. Halex GT can also be used following Acuron®, Acuron Flexi, Lumax® EZ or Lexar® EZ herbicides for season-long control of annual grass and broadleaf weeds, helping your customers grow more corn.

This agronomic photo shows the proper application timing of Halex GT.

Chart caption: Halex GT can be applied up to 30-inch corn, but when growers apply Halex GT to weeds under 4 inches tall, they can see a 12 bu/A yield advantage.

  • Soybeans: Flexstar® GT 3.5 herbicide offers post-emergence control of weeds that are difficult to control with glyphosate alone. Using Flexstar GT 3.5 after Boundary® 6.5 EC herbicide or BroadAxe® XC herbicides helps control stubborn weeds all season long.

This agronomic photo shows the untreated soybeans. This agronomic photo shows soybean plants treated with Boundary 6.5 EC followed by Flexstar GT.

Caption: Untreated (Left) vs. Boundary 6.5 EC followed by Flexstar GT (Right).

Controlling weeds requires full-season attention. Growers who scout early and use multiple modes of action in their post-emergence herbicide program can prevent weeds overtaking their corn and soybean fields, fight resistance all season long and achieve higher yield.

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

©2017 Syngenta. Important: Always read and follow label instructions. Some crop protection products may not be registered for sale or use in all states or countiesAAtrex, AAtrex Nine-O, Acuron, Lexar EZ and Lumax EZ are Restricted Use Pesticides. AAtrex®, Acuron®, Boundary®, BroadAxe®, Dual II Magnum®, Flexstar®, Halex®, Lexar®, Lumax®, and the Syngenta logo are trademarks of a Syngenta Group Company.

Leave a comment

All fields marked (*) are required