During an investigation of the role of nematodes in the dry land foot rot of wheat in North and Central Texas, 1356 samples were taken from around roots of small grains and native grasses. Tylenchorhynchus acutus was the most common nematode studied and appeared not to be restricted by host plant, soil texture, oz land resource area. Helicotylenchus nannus, Paratylenchus projectus, Rotylenchus robustus, Tylenchorhynchus brevidens and Xiphinema americanum were more common in some land resource areas than in others. Some nematodes appeared to be more prevalent in the heavier than in the lighter soils. Distribution and pathogenicity studies in the field and green house indicate that most nematodes are not contributing seriously to the poor yields of wheat in North Texas.

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