Abstract
An unknown disease of China doll (Radermacheria sinica) was found in Ise city, Mie Prefecture, Japan in July 2007. The causal agents were identified as Fusarium solani, Phytophthora nicotianae and binucleate Rhizoctonia sp. We propose the new disease as Fusarium rot, Phytophthora rot and Rhizoctonia rot of China doll, respectively.