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Occurrence of Tan-brown Leaf Spot Caused by Pilidium concavum on Fragaria ananassa in Korea

  • Park, Mi-Jeong (Horticultural and Herbal Crop Environment Division, National Institute of Horticultural and Herbal Science) ;
  • Back, Chang-Gi (Horticultural and Herbal Crop Environment Division, National Institute of Horticultural and Herbal Science) ;
  • Park, Jong-Han (Horticultural and Herbal Crop Environment Division, National Institute of Horticultural and Herbal Science) ;
  • Han, Kyung-Sook (Urban Agricultural Research Division, National Institute of Horticultural and Herbal Science)
  • Received : 2017.10.30
  • Accepted : 2017.11.03
  • Published : 2017.12.01

Abstract

In 2015, a new leaf spot disease was observed on strawberry seedlings in Wanju, Korea. Tanned brown spots appeared on the leaves of the infected plants, and often coalesced to form larger necrotic areas, resulting in the death of foliage. An isolate was obtained in pure culture. On the basis of morphological characteristics and molecular analysis of internal transcribed spacer rDNA sequence, the causal agent was identified as Pilidium concavum. Pathogenicity tests revealed the isolate was pathogenic to the leaves and fruits of strawberry. To the best of our knowledge, this is the first report of P. concavum causing tan-brown leaf spot on strawberry in Korea.

Keywords

References

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