Management of Plant-parasitic Nematodes on Peanut with Selected Nematicides in North Carolina


  • S. R. Koenning
  • J. E. Bailey
  • D. P. Schmitt
  • K. R. Barker


Field experiments were conducted to determine peanut growth and yield responses to selected fumigant and nonfumigant nemaficide treatments in 1988 and 1989. All treatments with the fumigant 1, 3-D significantly suppressed nematode reproduction (Meloidogyne arenaria, M. hapla, and Mesocriconema ornatum) and enhanced peanut yields over the other treatments in four tests in 1988. Yield increases with the fumigant ranged from about 20% to 100% over the untreated control. Test sites in 1989 had lower nematode levels than those for 1988, and fewer positive plant and nematode responses were detected. Treatments with 1,3-D improved peanut quality but not yield in one experiment with low levels of M. hapla and M. ornatum in 1988. The 1,3-D + chloropicrin treatments at another site gave higher peanut yields than 1,3-D alone. Key words: Arachis hypogaea, chemical control, management, Meloidogyne arenaria, Meloidogyne hapla, Mesocriconeraa ornatum, nematicides, nematode, peanut.