Early blight management in potato crop

  • The problem of burning plants in potato crops occurs due to early blight disease. 
  • Early blight starts in early December. 
  • This disease is caused by a fungus known as Alternaria solani.
  • Initially brown colored spots with centric rings are formed on the leaves.
  • The spots gradually grow in size,later covering the entire leaf and finally the plant dies.

Chemical treatment:

Azoxistrobin 11% + Tebuconazole 18.3% SC @ 300 ml / acre or Kasugamycin 5% + Copper oxychloride 45% WP @ 300 gram / acre or Metalaxyl 4% + Mancozeb 64% WP @ 600 gram / acre or Tebuconazole 10% + Sulfur 65% Spraying at the rate of WG @ 500 gram / acre.

Biological treatment:

Use Trichoderma viridi @ 500 g / acre or Pseudomonas fluorescence @ 250 gram / acre.

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