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1 results

  • Influence of Application Variables on Efficacy of Postemergence Applications of DPX-PE350

  • David L. Jordan, Robert E. Frans, Marilyn R. McClelland
  • Journal:
    Weed Technology / Volume 7 / Issue 3 / September 1993
    Published online by Cambridge University Press:
    12 June 2017, pp. 619-624

  • Experiments were conducted to compare control of entireleaf morningglory with POST applications of DPX-PE350 applied with no adjuvant, a nonionic surfactant, or crop oil concentrate in spray volumes of 94, 235, and 375 L ha−1. Control was greater with a nonionic surfactant or crop oil concentrate than with no adjuvant and control with crop oil concentrate exceeded control with the nonionic surfactant. Spray volume had no effect on efficacy. DPX-PE350 was more effective when applied to foliage only or to soil plus foliage than when applied to soil only after emergence of entireleaf morningglory. Control from soil-only applications was lower on a silty clay soil than on a silt loam soil. Except for sicklepod, mixing DPX-PE350 with fluometuron or MSMA had little effect on weed control.