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| Publication Type:
| Refereed |
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| Author(s): | Terashima, Yoshie;
Fujiie, Azusa |
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| Author Affiliation: | Terashima: Chiba Prefectural Forest Research Center, Chiba, Sanbu, Japan; Fujiie: Chiba Prefectural Agriculture Research Center, Midori, Chiba, Japan |
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| Title: | Development of a fairy ring caused by Lepista sordida on zoysiagrass over an eight-year period |
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| Section: | Dieseases (plant pathology)
Other records with the "Dieseases (plant pathology)" Section
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| Meeting Info.: | Llandudno, Wales, UK: July 10-15 2005 |
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| Source: | International Turfgrass Society Research Journal. Vol. 10, No. Part 1, 2005, p. 251-257. |
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| Publishing Information: | Aberystywth, Ceredigion, UK: International Turfgrass Society |
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| # of Pages: | 7 |
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| Keywords: | TIC Keywords: Fairy rings; Disease development; Zoysia matrella; Fungi; Lepista sordia; Zoysia japonica; Mycelium; Disease profile; Inoculation
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| Abstract/Contents: | "Field observations of a fairy ring caused by Lepista sordida (Schuml: Fr.) Sing. on Zoysiagrass, Zoysia matrella Merr., in Chiba City over an eight-year period revealed that the ring developed outward in concentric circles every year. The fairy ring was visible in the form of sporophores (sign) which appeared in autumn, and symptoms as a 20-30 cm wide belt of withered grass with a 15-20 cm wide dark green belt of fast-growing grass immediately behind and inside. The position of the withered and dark green belts were oberved to expand outwards 120 cm every year, disappearing upon contact with Perennial ryegrass, Lolium perenne L. The front line developed faster in June and September whent the average temperatures were 21-24°C. Similarly, in vitro growth of the fungal mycelia from sporophores collected in the same field occurred optimally at 25°C. Mycelia were restricted, with respect to their distribution in the turfgrass, to the thatch layer 30 cm outside the most anterior portion of the front, and in the withered and dark green belts of the fairy ring. In soil samples where the fungus was well established, other filamentous fungi were less prevalent than when Lepista sordida was absent in soil samples. Given that the fungus did not cause any direct damage to the seedlings of Zoysiagrass, Zoysia japonica Steud., the reason for the observed withered turfgrass could be attributed to the thick mycelial mat that develops in this fungus and renders the thatch layer impervious to water." |
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| Language: | English |
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| References: | 16 |
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| See Also: | Other items relating to: Fairy Rings |
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| Note: | Pictures, b/w
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Terashima, Y., and A. Fujiie. 2005. Development of a fairy ring caused by Lepista sordida on zoysiagrass over an eight-year period. Int. Turfgrass Soc. Res. J. 10(Part 1):p. 251-257. |
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