Diaporthe melonis var. brevistylospora およびPhomopsis sp.によるブドウ脱粒病（新称）

抄録

Peduncle dieback following berry drop in the middle of grape clusters, primarily on cultivars Pione, Muscat Bailey A and Muscat of Alexandria, has been observed frequently at harvest time in Kagawa prefecture since 1999. On the basis of morphological and cultural characteristics and molecular phylogenies, the causal pathogens were identified as Diaporthe melonis var. brevistylospora and Phomopsis sp. Berry drop (Datsuryu-byou in Japanese) is proposed for the name of the disease. Both isolates caused grape berry drops and were also pathogenic to fruits of kiwifruit, satsuma mandarin and apple.