Leaf blight of Chinese lantern plant Pysalis alkekengi L. var. franchetii Mark. and stem and root rot of poinsettia Euphorbia pulcherrima Willd. occurred in Tokyo Metropolis in 1996. The causal fungus isolated from the diseased plants was identified as Rhizoctonia solani Kühn by morphological observations and inoculation tests. This is the first report on the diseases in Japan.
