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Don’t Let Post-emergence Weeds Decrease Corn Yield

May 26, 2016

Studies have shown that yield losses in U.S. crops due to uncontrolled weeds exceed $20 billion annually.1 As corn prices continue to fall, growers can’t afford to lose yield to pesky weeds and grasses in their corn fields.

Syngenta recommends the following for best practices for herbicide applications:

  • Don’t ignore resistance problems: Use products with multiple, effective modes of action and overlapping residuals.
  • Avoid yield loss by starting and staying clean: Start clean by using a tillage pass or a burndown herbicide. For additional weed control a pre-plant, pre-plant incorporated or pre-emergence herbicide may be used.
  • Manage weed resistance with a post-emergence herbicide: Using a post-emergence herbicide with multiple modes of action and long-lasting residual can help manage weed resistance.

Solutions

By combining three modes of action, Halex® GT herbicide makes weed resistance one less thing growers have to worry about. Experts recommend adding atrazine (e.g. AAtrex® 4L or AAtrex Nine-O® herbicides) to Halex GT when possible for an additional mode of action and synergistic weed control. This combination can be applied up to 12″ corn. If atrazine cannot be used, add a dicamba product (e.g. NorthStar® herbicide).

Weed management can make or break corn yields. When choosing weed management products for the 2016 growing season, consider a post-emergence herbicide application that can help save time and money by providing more effective weed control.

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Photos are either the property of Syngenta or used under agreement.

1 Basu C, Halfhill MD, Mueller TC and Stewart Jr. CN, Weed genomics: new tools to understand weed biology. Trends in Plant Science; 9(8): 391-398 (2004).

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