Since the beginning of the 19th century, there have been serious damages to wheat and other crops caused by Fusaria in Japan. According to Nishikado’s extensive research on wheat scab, the disease was prevalent in the regions along the Pacific coast including Kyushu, Kinki, and Tokai Districts, and also in Aomori and Hokkaido.1 A number of reports on toxicosis in human and animals ingesting grains infected by these fungi appeared during this period. Fusarium saubinatti was identified as the causative agent of “Akakabibyo” (red-mold scab disease of wheat) affecting the growth and breeding of military horses.