Abstract
In September 1995, diseased leaves with lesions characterized as anthracnose were found on shoe flower (Hibiscus rosa-sinensis) planted on the roadside in the city of Naha, Okinawa Prefecture, Japan. These lesions were light-brown and irregular-shaped, and black and globose acervuli were formed on their surface. The lesions enlarged fast, and consequently the leaves became yellowish and finally fell off. The conidia produced in the acervuli were falcate, and are 24.5-28 µm×2.8-4 µm in size. Their pathogenicity as anthracnose was also confirmed by the inoculation test. The pathogen of these lesions was identified as Colletotrichum capsici (Sydow) Butler & Bisby, and the shoe flower anthracnose caused by this is new to Japan.
