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Interaction of Fusarium spp. and Certain Plant Parasitic Nematodes on Maize. L. T. Palmer, Assistant Professor, University of Nebraska, Lincoln 68503; D. H. MacDonald, Associate Professor, University of Minnesota, St. Paul 55101. Phytopathology 64:14-17. Accepted for publication 8 June 1973. DOI: 10.1094/Phyto-64-14.

The maize root rot complex caused by Fusarium spp. was studied in the presence of various plant parasitic nematode species including Meloidogyne incognita, Pratylenchus penetrans, P. hexincisus, P. scribneri, Paratylenchus nanus and Tylenchorhynchus martini. Average dry root and shoot weight of maize seedlings inoculated with both M. incognita and F. moniliforme were less than those of seedlings inoculated with either organism alone. Fusarium moniliforme alone decreased root and shoot weights of maize seedlings more than when the fungus was combined with either Pratylenchus scribneri or P. penetrans. Saprozoic nematodes may play a role in decreasing populations of F. moniliforme.

Additional keywords: inoculum, nematode-fungus relationship.