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1 results

  • Imazethapyr plus Propanil Programs in Imidazolinone-Resistant Rice

  • Tyler P. Carlson, Eric P. Webster, Michael E. Salassi, Justin B. Hensley, David C. Blouin
  • Journal:
    Weed Technology / Volume 25 / Issue 2 / June 2011
    Published online by Cambridge University Press:
    20 January 2017, pp. 204-211

  • Field studies were conducted in 2008 and 2009 near Crowley, Louisiana, to evaluate the addition of different propanil formulations in mixture with a standard imazethapyr program of 70 g ai ha−1 early postemergence followed by (fb) 70 g ha−1 late postemergence. Weeds evaluated included red rice, barnyardgrass, Texasweed, and alligatorweed. Control of all species with treatments, including a propanil formulation applied at 3,400 g ai ha−1, was equivalent to, or greater than, the standard imazethapyr program. Rough rice yield and economic returns were maximized when the propanil formulations of Propanil 1 or Propanil 3 were mixed with imazethapyr in the early postemergence applications. The addition of propanil to imazethapyr increased rough rice yield and economic returns because of improved weed control.