Zonate Leaf Spot of Indian Jujube Caused by Cristulariella moricola. H. J. Su, Professor, Plant Pathology Laboratory, National Taiwan University, Taipei. S. C. Leu, Research Assistant, Plant Pathology Laboratory, National Taiwan University, Taipei. Plant Dis. 67:915-916. Accepted for publication 2 May 1983. Copyright 1983 American Phytopathological Society. DOI: 10.1094/PD-67-915.

Zonate leaf spot of Indian jujube, Zizyphus mauritiana, in Taiwan was found to be caused by Cristulariella moricola. Leaves of Cinnamomum camphor, Bauhinia purpurea, Morus australis, and Ficus septica inoculated with C. moricola also developed zonate leaf spots. Disease development on detached leaves and growth of the pathogen were favored by temperatures of 16–25 C.