Pathogenicity and Interaction of Three Nematode Species on Six Bermudagrasses
Abstract
The ring nematode (Criconemoides ornatus), stunt nematode (Tylenchorhynchus martini), and sting nematode (Belonolaimus Iongicaudatus) reproduced readily on six bermudagrasses (Common, 'U-3', 'Tufcote', 'Continental', 'Tiffine', and 'Tifdwarf'). Populations of a single nematode species influenced the population development of a second and third parasitic nematode species on a particular host plant. Activity of most nematodes adversely affected reproduction of other nematode species in mixed cultures. Generally, the number of fibrous roots produced by plants decreased as the number of nematode species in the treatments increased. Tifdwarf bermudagrass appeared to be more tolerant to C. ornatus and T. martini t h a n other grasses tested. Key Words: Interaction, Pathogenicity, Criconemoides, Tylenchorhynchus, Belonolaimus, Bermudagrass.Downloads
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