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A Dwarfing Disease of Cultivated Violets associated with the Eelworm, Aphelenchoides olesistus

Published online by Cambridge University Press:  05 June 2009

L. N. Staniland  and
T. Goodey
L. N. Staniland
Affiliation:
(Advisory Entomologist, Seale-Hayne Agricultural College, Newton Abbot, Devon)
T. Goodey
Affiliation:
(Principal Research Assistant, Institute of Agricultural Parasitology, London School of Hygiene and Tropical Medicine.)
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Extract

More than twenty years ago Schwartz (1911) described a disease of cultivated violets associated with eelworm attack. The plants were obtained from gardens at Greiz and Kreuznach in Germany and in all cases had distinct gall-like swellings at the bases of the leaf-stalks. As the disease progressed the leaves became smaller and smaller and the leaf-stalks shorter until, finally, an irregular, walnut-sized gall was produced the surface of which was covered with abortive buds. Schwartz drew attention to the similarity presented by such plants to the “cauliflower” condition in strawberry plants associated with the presence of Aphelenchoides fragariae. Goffart (1930) mentioned the fact that the disease persisted for a time in Germany; being reported in 1910–12 and 1915–17 but had not been recorded again up to 1930.

Type
Research Article
Information
Journal of Helminthology , Volume 12 , Issue 1 , January 1934 , pp. 13 - 22
Copyright
Copyright © Cambridge University Press 1934

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References

Goffart, H., 1930.—“Die Aphelenchen der Kulturpflanzen,” Monographien zum Pflanzenschutz, 4. Berlin.CrossRefGoogle Scholar
Goodey, T., 1928.—“The Species of the genus Aphelenchus.” J. Helm. vi (3), 121–60.CrossRefGoogle Scholar
Schwartz, M., 1911.—“Die Aphelenchen der Veilchengallen und Blattflecken an Farnen und Chrysanthemum.” Arb. Kaisl. Biol. Anst. Land.u. Forstw. viii (2), 303–34.Google Scholar