FMC Launches Authority First DF Herbicide

Avatar for Matt Hopkins By Scott C. Lucas|4 December 2006

Through a recently announced long-term supply agreement with Dow AgroSciences, FMC Corp. gained access to cloransulam-methyl. Authority First is available in a dry flowable formulation for preemergence use to control a wide spectrum of problem weeds, including glyphosate-resistant broadleaf weeds.

Authority First provides residual weed control for Roundup Ready soybeans, maximizing the value of glyphosate while minimizing weed escapes. Applied pre-plant up to three days after planting, Authority First can be tank mixed with other pre-plant herbicides for more broad spectrum weed and grass control. It can be applied pre-plant surface, via shallow incorporation, or pre-emergence in no-till, minimum till, or conventionally tilled soybeans.
According to FMC, Authority First controls a number of key weeds in soybeans, including:

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  • Kochia (including ALS- and triazine-resistant)
  • Nightshade (Eastern black, silverleaf & hairy)
  • Palmer amaranth
  • Russian thistle
  • Waterhemp (tall and common)
  • Pigweed (redroot, smooth and tumble)
  • Velvetleaf
  • Pennsylvania smartweed
  • Common cocklebur
  • Carpetweed
  • Common purselane
  • Marestail (including glyphosate-resistant biotypes)
  • Prickly sida (teaweed)
  • Lambsquarters
  • Morningglory
  • Sicklepod
  • Common and giant ragweed
  • Sunflower
  • Signalgrass
  • Goosegrass
  • Nutsedges

For more information on Authority First DF, visit www.fmc.com.

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