Leaf spot of Amelanchier asiatica Caused by Entomosporium mespili
1998
Shin Hyeon-dong | Lee Hyun-tae Department of Agricultural Biology, korea University, Seoul (Korea Republic)
Leaf spot of Amelanchier asiatica was observed in Korea. The major symptoms of the disease were small necrotic spots ans severe early defoliation. On the basis of morphological characteristics of the fungus observed from naturally infected leaves, the causal organism was identified as Entomosporium mespili (DC.:Duby) Sacc. The conidial suspension prepared from sporulating lesions was sprayed on healthy leaves with or without wounding ot prove pathogenicity of the fungus. Small spots were noticed two days after inoculation, and acervuli containing numerous conidia were observed 7 and 10 days after inoculation from wounded and unwounded leaves, respectively. This is the first record of the disease on A. asiatica in Korea.
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