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The 6 Moves to Knock Out Your Toughest Weeds

May 4, 2020
THis agronomic image shows young corn rows.

The only predictable thing about the weather is its unpredictability. One major weather event – or a season full of steady weather disruptions, like we experienced in 2019 – can derail your carefully planned weed management program.

Last year, Mother Nature seemed to favor weeds, and they took advantage of it. But rather than adopting a reactive approach to weed pressure, follow these steps to reduce the risk and gain the upper hand on #toughweeds this season.

  1. Plant into a clean seed bed by using either tillage or an effective burndown. This is vital in 2020, as more weeds are likely to germinate from the weed seed bank after the high number of weed escapes last year.
  2. Increase plant populations and plant narrow rows to provide more competition and shading of weeds.
  3. Know your fields’ weed history and whether any weeds have shown signs of resistance to the ag herbicides you’re planning to use.
  4. Use effective preemergence and post-emergence herbicides that provide both contact and residual weed control as part of a 2-pass system with overlapping residuals.
  5. Understand how conditions can affect the length of residual control you can achieve with your herbicides. Schedule herbicide applications based on the calendar and expected days of residual control. If residual is compromised, be prepared to work quickly to respray or schedule your next pass sooner than you would have otherwise.
  6. Work with your local agronomist or Syngenta sales representative to create a full-season weed management plan that includes a variety of cultural and chemical practices, and adjust as needed throughout the season. Weeds adapt to their conditions, and so should we.

As weeds emerge, draft a plan to outsmart them. For effective burndown in both corn and soybeans, Gramoxone® SL 3.0 herbicide is convenient, flexible and dependable. If corn hasn’t emerged and weeds are present at application, tank mix Gramoxone SL 3.0 with Acuron® corn herbicide in reduced or no-till systems for additional control. Trials show Acuron delivers 5-15 more bushels an acre than any other corn herbicide*, and with the current commodity prices, every bushel counts.

In soybeans, we recommend a preemergence application of Boundary® 6.5 EC, BroadAxe® XC or Prefix® herbicides followed by Tavium® Plus VaporGrip® Technology herbicide in Roundup Ready 2 Xtend® Soybeans for a 2-pass system with both contact and residual control. Tavium, the market’s first premix residual dicamba herbicide, controls a broad spectrum of tough weeds for up to 3 weeks longer than dicamba alone.

See how to fight resistant weeds with Syngenta in your corner:

See how weed resistance has spread across the U.S. in the last 50 years and learn more about how to keep tough weeds from jeopardizing your profits.

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

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