Bondi Junction NSW, Australia
Fact Sheets
Taro (Leptosphaerulina) leaf spot (318)
Pacific Pests, Pathogens and Weeds
Pacific Pests, Pathogens and Weeds


  • 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.

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