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  • The infection of the foliage results in yellow ‘V’ shaped spots arising along the margin which extend in the direction of the midrib.
  • These spots are associated with a typical black discoloration of the veins.
  • The infection extends through the xylem to the stalk and the vascular bundles turn black. In severe infection, the whole leaf shows discoloration and eventually falls off.


  • Spray pseudomonas @ 20 gram per litre
  • Soil drench Agrimycin - 100 (1 gram/ 10 litre of water) or streptocycline (0.5 gram/ litre of water)