• Title/Summary/Keyword: early and late postemergence treatment

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Combinations of Paraquat and Oxyfluorfen for Control of Orchard Weeds (과수원(果樹園) 제초(除草)를 위한 Paraquat 와 Oxyfluorfen 조합처리(組合處理) 효과(效果)에 관한 연구(硏究))

  • Kwon, S.L.;Guh, J.O.;Cho, Y.W.
    • Korean Journal of Weed Science
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    • v.3 no.2
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    • pp.208-222
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    • 1983
  • To control ideally the weeds in orchards and systematize the utility of herbicides, the mixing effect of oxyfluorfen and paraquat was evaluated. Combinations of oxyfluorfen with paraquat were increased the control efficacies at any treatment without giving damage to fruit trees and appeared a synergism. The control effects were reduced from 80-90% to 40-60% as the time advanced. However, the relative synergistic index was higher at 60 days after treatment in preemergence treatment and at 90 days after treatment in early and late postemergence treatment, respectively. Also the index was relatively higher at lower dosage of both herbicides.

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