Management of Meloidogyne hapla in Herbaceous Perennial Ornamentals by Sanitation and Resistance
Abstract
Meloidogyne hapla can be spread in bare-root herbaceous perennial propagation material and may be difficult to control once established in new fields or in the landscape. Root pruning of bare-root plants was investigated as a means of reducing spread and establishment of M. hapla. Plants previously inoculated with 10,000 eggs/plant were root-pruned to remove either a portion or most of the fibrous root system without removing underground stems, buds, tubers, or tuberous roots. Root pruning of Aconitum, Ajuga, Anemone, Geranium, and Trollius significantly reduced or eliminated M. hapla galls and egg production in plants 1 to 4 months after propagation. Planting M. hapla-resistant plants such as Rudbeckia and Asterinto pots infested with 10,000 eggs/pot eliminated M. hapla populations after 2 to 6 months of growth. Tomato plants grown after Rudbeckia and Aster were free of galls and eggs, while bioassay tomatoes grown after susceptible plants such as Coreopsis, Primula, and Lobelia were heavily galled with a large number of egg masses. These results demonstrate the potential of sanitation and resistance for management of M. hapla in perennials. Key words: management, Meloidogyne hapla, nematode, nonhost, ornamental, perennial, resistance, root-knot nematode, rotation.Downloads
Published
Issue
Section
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).
