Community Structure of Plant-parasitic Nematodes Related to Soil Types in Illinois and Indiana Soybean Fields

V. R. Ferris, J. M. Ferris, R. L. Bernard, A. H. Probst


Comparisons of plant parasitic nematode populations using a resemblance equation and community ordination showed that community structure tends to be similar on dark-colored, highly productive soybean soils throughout Indiana and Illinois. On lighter-colored soils community structures differed somewhat from those of darker soils and from each other. Key Words: Ecology, Dendrogram, Similarity indices, Community ordination, Helicotylenchus pseudorobustus, Pratylenchus spp., Paratylenchtts projectus, Tylenchorhynchus acutus; Tylenchorhynchus martini, Xiphinema americanum.

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