Zhanying Zhu

First Report of Alternaria alternata Causing Leaf Spot on Kerria japonica in China

Kerria japonica (Rosaceae) is a deciduous ornamental shrub native to East Asia and widely used in urban landscaping in China. In October 2025, a leaf spot disease was observed on K. japonica in Nanyang City (32°58′46″N, 112°30′26″E). Approximately 0.67 ha of landscape plantings w...