Waterhemp growing in soybean rows.

Here are some recommendations from local agronomists as you begin to plan for 2021:

Plan Now for Volunteer Corn Management

• After a summer with high winds, damaging derechos and outbreaks of tornados, fields were left with a higher-than-usual amount of downed corn. This is likely to lead to an increase in the amount of volunteer corn present in next year’s crops. Without treatment, these infestations can cause significant yield loss in 2021, and should therefore be one of the most important considerations for next year’s herbicide program. Fusilade® DX herbicide should be used as a standalone application to ensure the highest yield potential.

Fungicides in Every Soybean and Corn Growing Plan

• As growers develop a crop plan for 2021, a fungicide treatment for corn and soybeans should be considered just as much as seed treatments and herbicides. The 2020 season showed significant disease pressure, indicating a need for a broad-spectrum, preventive fungicide application in 2021. For a long-lasting effect, Miravis®Neo fungicide is one of the highest-performing, broadest-spectrum options. With 3 separate modes of action to help delay resistance, Miravis Neo delivers effective, lasting control of leaf spots, blights and rusts in corn and soybeans.

Multiple Effective Sites of Action for Resistant Waterhemp Control

• Waterhemp is one of the most problematic weeds in parts of the Midwest due to its level of seed production and resistance to many different sites of action (SOAs). When left unchecked, waterhemp can seriously reduce yield potential by competing with corn and soybeans for valuable resources throughout the season. Using the full rate of a pre-emergence herbicide gives you more time to get the post-emergence applied prior to significant weed emergence, thus avoiding the issues seen in some areas this year. Layering residuals should lead to better yield if the crop is not competing with weeds at any point in the growing season.
  • Soybeans:  Boundary® 6.5 EC herbicide works well as a pre-emergence herbicide with a variety of soybean trait systems. Follow this up with a post-emergence application of Tavium® Plus VaporGrip® Technology herbicide for dicamba-tolerant soybeans.
  • Corn: Acuron® herbicide outperforms and outyields all other corn herbicides, delivering 5-15 more bushels per acre when used at the full labeled rate*. This can be followed by an application of Halex® GT plus either  atrazine or dicamba for an additional SOA.

Overlapping Residuals Yield a Stronger Crop

• Growers have been planting soybeans earlier and earlier the last few years. When moving the planting time and soybean pre-emergence applications, the timing of the post-emergence application needs to be adjusted accordingly to ensure there is not a gap in coverage. Maximizing residual length through well-timed applications will reduce the possibility of uncontrolled weeds cutting into yield potential. Plan a program using overlapping residuals to help ensure weeds are managed throughout the entire growing season.
• Keep in mind that all herbicides are not created equal and your growing goals and specific needs need to be considered when planning for next year’s treatment program. Along with overlapping and long-lasting residual control, consider the active ingredients in your herbicide choices.

More Detailed Reports from this Season:

• Reduce Potential for Volunteer Corn in 2021 with Tillage this Fall
• A Strong Herbicide Program Has Staying Power
• Four Considerations When Choosing Your Corn Herbicide
• Corn and Soybean Herbicide Trials Show How to Combat Waterhemp
• Think Twice Before Cutting Fungicides

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*Acuron yield advantage range based on 2016 Syngenta and University trials comparing Acuron to Corvus®, Resicore®, SureStart® II and Verdict® applied preemergence and at full label rates. For more information on Acuron versus an individual product, ask your Syngenta representative.

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