2020 Volume 61 Issue 1 Pages 33-39
A powdery mildew that occurred on leaves of Cerasus kumanoensis (Kumanozakura) was collected and identified as Podosphaera prunigena by molecular phylogenetic analysis and morphological comparison. Based on the observation of type specimen, the description of P. prunigena was emended. Morphological features of conidia and conidiophores not reported in the original description of P. prunigena are described. This is the first report of powdery mildew on C. kumanoensis.