Abstract
Races of 131 isolates of tomato leaf mold fungus, Fulvia fulva, collected from 30 prefectures of Japan during 1997-1998 were identified. Four races, race 0, 2, 2.4 and 2.4.11 were detected. Race 2 was predominant with 113 isolates identified as this race. All four races were found in Kanto district, but only race 2 was detected in Chugoku, Shikoku and Kyushu districts. Race 0 and 2 were thought to be identical to the known races in Japan. However, race 2.4 and 2.4.11 had a virulence pattern different from the known races in Japan.
