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ARS Home » Northeast Area » Beltsville, Maryland (BARC) » Beltsville Agricultural Research Center » Mycology and Nematology Genetic Diversity and Biology Laboratory » Research » Publications at this Location » Publication #391051
Research Project: Molecular Systematics, Identification, Biology, and Management of Crop-Parasitic Nematodes

Location: Mycology and Nematology Genetic Diversity and Biology Laboratory

Title: Pathogenicity and control of Meloidogyne spp. on some spinach, Swiss chard, and table beet plant cultivars

Author
item IBRAHIM, IBRAHIM - Agricultural Research Center Of Egypt
item Handoo, Zafar
item ZEYADAH, SABREN MOHAMED - Agricultural Research Center Of Egypt
item KANTOR, MIHAIL - Oak Ridge Institute For Science And Education (ORISE)
item KAWANNA, MAHA ADEL - Agricultural Research Center Of Egypt

Submitted to: Notulae Scientia Biologicae
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 3/11/2022
Publication Date: 3/18/2022
Citation: Ibrahim, I.K., Handoo, Z.A., Zeyadah, S.A., Kantor, M., Kawanna, M.I. 2022. Pathogenicity and control of Meloidogyne spp. on some spinach, Swiss chard, and table beet plant cultivars. Notulae Scientia Biologicae. 14(1). https://doi.org/10.15835/nsb14111175.
DOI: https://doi.org/10.15835/nsb14111175

Interpretive Summary: Plant-parasitic nematodes are microscopic worms that feed on plants and cause an estimated ten billion dollars of crop losses each year in the United States and 100 billion dollars globally. Root-knot nematodes are one of the most economically important groups of plant-parasitic nematodes worldwide. One problem with root-knot nematodes is that the host range of the nematodes on specific crop cultivars is not known. In the present study, the reactions of some spinach, swiss chard and table beet cultivars to the root-knot nematodes, Meloidogyne arenaria, M incognita and M javanica were observed under the greenhouse conditions. The results show that the tested plants were either susceptible or highly susceptible to the tested root-knot nematode species except spinach cv. ‘Pacific’ and table beet cv. ‘Asgro Wonder’ which exhibited only moderately susceptible reaction to M. arenaria and M. javanica. The results are significant because they provide the first evidence that the specific tested cultivars are resistant or susceptible to the nematode species examined. This research will be of use to scientists, growers and extension agencies involved in root-knot nematode research and control.

Technical Abstract: The pathogenicity of the root-knot nematodes Meloidogyne arenaria, M. incognita and M. javanica on spinach cvs. ‘Balady’, ‘Barkly’, ‘Orient’, ‘Pacific’ and ‘Solanicy’, Swiss chard cvs. ‘Balady’ and ‘Ford Hook’, and table beet cvs. ‘Asgro Wonder’, ‘Balady’, ‘Detroit Dark’ and ‘Detroit Spainal’ was determined in several greenhouse tests. The results show that the tested chenopodiaceous plant cultivars were either susceptible or highly susceptible to the tested root-knot nematode species except spinach cv. ‘Pacific’ and table beet cv. ‘Asgro Wonder’ which exhibited moderately susceptible reaction to M. arenaria and M. javanica. In a separate control experiment, the pathogenicity of M. incognita on spinach cv. ‘Balady’ was studied in a greenhouse experiment. Soil treatments with dried plant materials of Monterey cypress, Brazil pepper-tree, lime and China tree induced great reductions (81.4-91.8%) in the numbers of root galls and egg masses of M. incognita on infected spinach plants. On the other hand, treatments with plant materials of blue gum tree, California pepper-tree, lantana and pomegranate gave 49.8-69.3% reduction of root galls and egg masses of M. incognita on infected spinach plants.