Abstract
Anthracnose of Cacalia delphiniifolia Siebold et Zucc. occurred on Toshima Island of Tokyo Metropolis in 2009. The causal fungi isolated from the diseased plants were identified as Colletotrichum dematium (Persoon:Fries) Grove and Colletotrichum gloeosporioides (Penzig) Penzig & Saccardo. Inoculation tests showed that these fungi were the causal agents of the disease. This is the first report of the disease in Japan.
