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1 results

  • Effects of Nicosulfuron on Quackgrass (Elytrigia repens) Control in Corn (Zea mays)

  • Prasanta C. Bhowmik, Betsey M. O'Toole, John Andaloro
  • Journal:
    Weed Technology / Volume 6 / Issue 1 / March 1992
    Published online by Cambridge University Press:
    12 June 2017, pp. 52-56

  • Four field experiments were conducted during 1988 and 1989 to determine the effects of POST application of nicosulfuron on quackgrass control in conventional field corn. A single application of nicosulfuron at 35 to 70 g ha–1 applied to four- to six-leaf quackgrass controlled over 90% of quackgrass five weeks after treatment. Nicosulfuron at 35 g ha–1 applied at the one- to three-leaf stage was not as effective as the same rate applied at the four- to six-leaf stage. When nicosulfuron at 35 g ha–1 was applied to four- to six-leaf quackgrass, over 80% of the quackgrass regrowth was controlled one year later. Nicosulfuron did not injure ‘Agway 584S’ corn at the highest rate (140 g ha–1) tested and did not reduce silage or grain yield.