Hairy Indigo for the Management of Meloidogyne arenaria in Peanut


  • R. Rodriguez-Kabana
  • D. G. Robertson
  • L. Wells
  • R. W. Young


Arachis hypogaea, Biological Control, Cultural Practices, Forages, Green Manures, Hairy Indigo, Indigofera hirsuta, Legumes, Meloidogyne arenaria, New Crops, Organic Amendments, Peanut, Pest Management, Root-Knot Nematode, Rotations


Rotation of hairy indigo (Indigofera hirsuta) with 'Florunner' peanut (Arachis hypogaea) was evaluated for the management of Meloidogyne arenaria in a 2-yr (1986, 1987) field experiment at the Wiregrass Substation near Headland, Alabama. Second-stage juvenile populations in soil, determined 2-4 wk before peanut harvest, were 4-10/100 cm of soil in plots with hairy indigo both years; average juvenile numbers in plots with continuous nontreated peanut were 147 and 239/100 cm of soil in 1986 and 1987, respectively. Juvenile populations in plots with peanut in 1987 and planted with hairy indigo in 1986 were lower than those of plots planted with peanut both years; peanut yields in the hairy indigo-peanut rotation were 15% higher than the yield for plots in peanut monoculture. The hairy indigo-peanut rotation did not result in as high a yield response as the recommended aldicarb treatment (12 kg a.i./ha, applied broadcast). The highest peanut yields in 1987 were from plots treated with al