• Worldwide distribution. On taro, legumes, and many other vegetables, and weeds. A fungal disease of minor importance.
• Associated with leaf spots or dead areas on a number of hosts, e.g., leaf spots on pepper (capsicum), a target spot on beans, leaf spots and corm rots on taro. On alfalfa, tan leaf spots are surrounded by brown margins, giving an 'eyespot', sometimes with a yellow halo. 
• Spread in rain and wind, and possibily seedborne.
• Cultural control: generally no recommendation; however, on alfalfa in the USA, lepto leaf spot is managed by early harvests; avoiding leaving cut plants in the field; crop rotations avoiding forage legumes for 2 years; and resistant varieties.
• Chemical control: none recommended.

Taro (Leptosphaerulina) leaf spot. CABI gives the preferred common name as soyabean leaf spot. In the USA, it causes alfalfa lepto leaf spot. Alfalfa is a forage legume.

Leptosphaerulina trifolii. Previously known as Sphaerulina trifolii and Leptosphaerulina briosiana.