Efficacy of Fumigant and Nonfurmigant Nematicides for Control of Meloidogyne arenaria on Peanut
Abstract
Three tests were conducted to evaluate the efficacy of fumigant and nonfumigant nematicides for control of Meloidogyne arenaria race 1 on peanut. Methyl bromide, 1,3-D, methyl isothiocyanate, and methyl isothiocyanate mixtures were applied 7 or 8 days preplant either broadcast or in-the-row. Aldicarb, ethoprop, fenamiphos, and F5145 were applied at different rates and by different methods at-plant or at early flowering. Of the 32 treatments evaluated, only seven resulted in yield increases (P = 0.05), although early season vigor was high in all treated plots. During the latter one-third of the growing season, however, nematode control was not adequate in most treatments resulting in heavy peg, pod, and root infection by M. arenaria. Key words: 1,3-D, aldicarb, Arachis hypogaea, chemical control, ethoprop, F5145, fenamiphos, fumigant, Meloidogyne arenaria, methyl bromide, methyl isothiocyanate, nematicide, nonfumigant, peanut, root-knot nematode.Downloads
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