Disease of Pomegranate | Bacterial Blight (Oily Spot) | Symptoms & Manegment

     
     BACTERIAL BLIGHT.   (OILY SPOT)


Diseases of Pomegranat-:
1)    Bacterial blight (oily spot) – Xanthomonas axonopodis PV. Punicae
2)    Anthracnose – Colletotrichum gloeosporiodis
3)    Leaf spot -  Cercospora punicae





Symptoms-:
  • ·         Small Irregular, Water soacked spot apper on leaves.
  • ·         Spots vary from 2 to 5 mm in diameter with Necrotic center of pin head size.
  • ·         Spots are Translucent, later turn light brown to dark brown & are surrounded by     prominent water soaked margins.
  • ·         Several Infected leaves fall off.
  • ·         Bacterium attacks Stem, Branches & Fruits also.
  • ·         Girdling and Cracking of nodes.
  • ·         Brown to black spot apper on Pericarp with L & Y shaped Cracks.

·        




Management-:
  • ·         Clean Cultivation & Strict sanitation is followed.
  • ·         Use wide row spacing.
  • ·         Selection of Disease free Seedling for fresh Planting.
  • ·         Pruning of affected branches, collect and destroy Affected leaves (followen), fruits and   burn it.
  • ·         Dusting of Bleaching Powder or copper dust 4% (20Kg/ha) in orchard.
  • ·         Give minimum three month Reset after Harvest.
  • ·         Before Pruning, It should be Sprayed with 1% bordax Mixture.
  • ·         After ethrel Spraying defoliation, past or smear with neemoil+500 ppm Streptomysin     sulphate + 0.5% captan.
  • ·         After new flush, spray Streptomycin sulphate or Bactericide (250ppm) / 1% Bordax     mixture / captan 0.25% / 0.25% copper oxy chloride per liter of water.
  • ·         Spray 0.5gm Streptomycin sulphate or bactericide + 2.5g copper oxy Chloride per liter   of water.






Published by
                                                                                    
Shubham S. Malode
                                                                (Bsc Agriculture Biotechnology) 
 







 

 




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