How to control leaf blight disease in Wheat

  • This disease is mainly caused by the fungus Bipolaris sorokiniana. The symptoms of this disease are found in all parts of the plant and its effect is more visible on the leaves. 

  • Initially, the symptoms of the disease appear in the form of small brown boat-shaped spots, which enlarge and spread all over the leaves.

  • The plant tissue dies and the green colour begins to dissipate, giving the plant a scorched appearance.

  • Due to this, the process of photosynthesis in the plant is severely affected, the seeds of the affected plant have less germination capacity.

  • The temperature of 25 °C and high relative humidity are favourable for this disease.

  • For chemical treatment spray Thiophanate Methyl 70% W/P @ 300 gm or Carbendazim 12% + Mancozeb 63% WP @ 300 gm or Hexaconazole 5% SC @ 400 ml or Tebuconazole 10% + Sulfur 65% WG @ 500 gm or Chlorothalonil 75% WP @ 400 gm or Kasugamycin 5% + Copper Oxychloride 45% WP @ 300 gm/acre.

  • As a biological treatment spray Trichoderma viride @ 500 gm/acre or Pseudomonas fluorescens @ 250 gm/acre.

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