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Agricultural crops :: Pulses :: Greengram

Bacterial Leaf Blight: Xanthomonas phaseoli

Symptom
  • It is characterized by many brown, dry and raised spots on the leaf surface.
  • When the disease is severe several such spots coalesce, the leaves become yellow and fall off prematurely.
  • The lower surface of the leaf appears red in colour due to the formation of raised spots.
  • The bacterium is also seed-borne
  • The stem and pods also get infected.
Management
  • Use disease free seed
  • Destruction of debris and stubbles.
  • Soak the seeds in 500 ppm Streptocycline solution for 30 min. before sowing followed by two sprays of Streptocycline combined with 3 g of Copper Oxychloride per litre at an interval of 12 days is recommended.

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