Ecology and Control of Cereal Cyst Nematode (Heterodera avenae) in Southern Australia

Authors

  • R. H. Brown

Abstract

The ecology and control of cereal cyst nematode in southern Australia is reviewed. The wide distribution of Heterodera avenae in Victoria and South Australia is due largely to movement of cysts by wind during dust storms. The fungus Rhizoctonia solani frequently is associated with the nematode in a disease complex in wheat, and disease symptoms are most severe on lighter or well structured soils. Crop rotations which include periods of fallow, or of nonhost crop reduce population levels of H. avenae and improve yields. Early-sown crops (April-May) are less severely damaged than late-sown crops (June-July). The resowing of damaged wheat crops or the application of nitrogenous fertilizers rarely improve grain yields. 'Katyil,' the world's first wheat cultivar bred specifically with resistance to H. avenae, has been released in Victoria. Chemical control of the nematode in cereals is now commercially feasible, and five nematicides are registered for use by growers. Key words: wheat, crop rotation, resowing, fertilizers, resistance, nematicides.

Downloads

Published

1984-07-15

Issue

Vol. 16, No. 3 (July 1984)

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).