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Book: Proceedings of the Second International Turfgrass Research Conference
Published by: American Society of Agronomy, Crop Science Society of America



  1.  p. 353-357
    Proceedings of the Second International Turfgrass Research Conference

    Eliot C. Roberts (ed.)

    ISBN: 978-0-89118-573-4


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Apothecial production of Sclerotinia homoeocarpa F.T. Bennett1

  1. N. Jackson


The fungus causing dollar spot disease of turfgrasses, Sclerotinia homoeocarpa F. T. Bennett, was first identified in the United Kingdom in 1937. Bennett described the production in culture of viable conidia and/or ascospores by some British isolates of the fungus, but the American and Australian isolates that he studied were apparently sterile. Since 1937 Bennett's work has never been corroborated and no further instances of fertile fruiting structures in laboratory culture or in nature have been reported. During 1971 the author made isolations of the causal fungus from fescue turf (Festuca rubra L. subsp. rubra) exhibiting typical dollar spot symptoms. Infected naturally-occurring sea marsh fescue and plots of several fine-leaved fescue cultivars growing in trials at the Sports Turf Research Institute, Bingley, England, provided the bulk of the isolates. Fertile apothecia, closely resembling Bennett's “ascigerous strain,” were produced in culture on several isolates. More than one fungus may be associated with dollar spot symptoms and the taxonomie position of S. homoeocarpa is in doubt. Additional index words: Dollar spot, Turf.

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Copyright © 1974. Copyright 1974 by the American Society of Agronomy, Inc. and the Crop Science Society of America, Inc., 5585 Guilford Rd., Madison, WI 53711 USA