LEAF SPOT OR TIKKA DISEASE OF GROUNDNUT Tikka disease is a disease caused by a pathogenic fungus, Cercospora personata. The disease mainly affects groundnut crops all across the world. The groundnut leaf spots (early leaf spot and late leaf spot) commonly called “Tikka” disease cause nearly complete defoliation and yield loss up to 50 % or more depending upon disease severity.

1. Disease: Leaf spot or Tikka disease of groundnut
Causal organisms: Cercospora arachidicola
Cercosporidiumpersonatum
Early leaf spot Late leaf spot
(Early leaf spot)
(Late leaf spot)

2. Symptoms:
Cercosporaarachidicola Cercosporidiumpersonatum
Causes early leaf spot
Dark brown,bigger in size
Surrounded by yellow halo
Causes late leaf spot
Dark brown to black, smaller size
Almost no yellow halo

4. Control measures :
Destruction of crop residues
Sowing healthy seeds
Crop rotation
Chemical treatment:
Spray Tilt 250 EC / Bavistin @ 0.2 %
(2-3 times) at 10 days intervals of
plants from 30-45 DAYS
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