EPA Extends Registration of Dicamba for Over-the-Top Use

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Now that Halloween is over and Christmas music is starting to play, the EPA has reached a decision on the over-the-top use of dicamba for dicamba-tolerant cotton and soybean. The verdict: the registration for over-the-top use of dicamba will continue for two more years with the registration expiring on December 20, 2020 (unless the agency decides to extend the registration again). You can see the entire press release via the EPA website. Highlighted by the press release, a few notable changes to the label include:

  • Only certified applicators may apply dicamba over the top (those working under the supervision of a certified applicator may no longer make applications)
  • Prohibit over-the-top application of dicamba on soybeans 45 days after planting and cotton 60 days after planting
  • For cotton, limit the number of over-the-top applications from 4 to 2 (soybeans remain at 2 OTT applications)
  • Applications will be allowed only from 1 hour after sunrise to 2 hours before sunset
  • In counties where endangered species may exist, the downwind buffer will remain at 110 feet and there will be a new 57-foot buffer around the other sides of the field (the 110-foot downwind buffer applies to all applications, not just in counties where endangered species may exist)
  • Clarify the training period for 2019 and beyond, ensuring consistency across all three products
  • Enhanced tank clean-out instructions for the entire system
  • Enhanced label to improve applicator awareness on the impact of low pH’s on the potential volatility of dicamba
  • Label clean up and consistency to improve compliance and enforceability

Stay tuned for more information on specific label changes and winter training.