Interaction of Meloidogyne naasi, Pratylenchus penetrans, and Tylenchorhynchus agri on Creeping Beentgrass

Authors

  • R. A. Sikora
  • D. P. Taylor
  • R. B. Malek
  • D. I. Edwards

Abstract

The pathogenicity and interactions of Meloidogyne naasi, Pratylenchus penetrans, and Tylenchorhynchus agri on 'Toronto C-15' creeping bentgrass, Agrostis palustris, was studied in a long-term greenhouse experiment. Based on dry weights of roots and clippings, M. naasi alone and in all combinations with P. penetrans and T. agr/was highly pathogenic to creeping bentgrass. P. penetrans and T. agr/alone and in combination inhibited root growth but adversely affected top growth only when the two were co-inoculated. In combination, the effects of each species on top growth were additive, with M. naasi the dominant pathogen. Creeping bentgrass was an excellent host for M. haas/and T. agr/, but a poor host for P. penetrans T. agri inhibited population increase of M. naasJ, indicating nematode-nematode competition, but neither T. agr/ nor P. penetrans was affected by any of the combinations. Key words: Agrostis palustris, root-knot nematode, lesion nematode, stunt nematode, pathogenicity, population dynamics, nematode complexes.

Downloads

Published

1972-07-15

Issue

Vol. 4, No. 3 (July 1972)

Section

Articles

License

Copyright and Permissions

All material published by the Society of Nematologists (SON), except for papers prepared by United States and Canadian government employees, is copyrighted and protected under the U.S. copyright law. Under the Copyright Act of 1976, the term of copyright for materials registered by an organization is 75 years from the date first published. Before publishing any manuscript, SON requires that authors transfer full and complete ownership of any copyright to SON by signing a JON Page Charge/Copyright Form (.pdf). SON then registers the copyright. Subsequent use of published materials requires written permission from the SON and may be obtained by contacting the current Editor-in-Chief and state where and how the material will be used.

The author warrants that the article is an original work not published elsewhere in whole or in part, except in abstract form, and that the author has full power to make this grant. If portions of the article have been published previously, then the author warrants that permission has been obtained from the copyright holder and the author will submit a copy of the permission release with this copyright transfer form.

SON shall claim no proprietary right other than copyright. Authors and coauthors retain the right to revise, adapt, modify, or otherwise use all or part of the article in future works of the author(s), such as press releases, lectures, and reviews, provided that all such use is for the personal noncommercial benefit of the author(s). All patent rights are retained by the author(s).