Sorghum (Sorghum bicolor)

Leaf Blight (Helminthosporium turcicum)

Symptoms

  • The disease appears as small narrow elongated spots in the initial stage and in due course they extend along the length of the leaf.
  • On older plants, the typical symptoms are long elliptical necrotic lesions, straw coloured in the centre with dark margins.
  • The straw coloured centre becomes darker during sporulation.

Management

  • Use disease free seeds.

Chemical Control

Sl.No Generic Name Trade Name Color code Dosage/litre Knapsack Sprayer (Capacity 10L) Dosage/acre (200 L) Dosage/hectare (500 L)
1 Mancozeb 75 WP Devidayal M-45, Dhanuka M-45 Dithane , Dithane M-45 , Hilthane Hindustan M-45 , Indofil M-45,Izeb M-45 , Manzate , Luzen 45 ,Macoban M-45, Mancosaan , Mancosaan M-45 Manzeb 75 WP , Maneb Manzane M-Guard , Savour M-45 , Tata M-45 Eurofil -NT , Uthane M-45 ,Veera Zinthane Green

3 g/litre of water 30 g 600 g 1500 g
2 Carbendazim 50 WP Bavistin , Benfil , Bengard, Benlate , Benmain, Bensaan, B-stin 50 WP, JK Stein 50 WP Carben, Carziim 50,Dhanustin, Dhanustin 50 Wp, Fungiguard Gancarzin 50 , Glizim, Mintho Tagstin, Tiara, Zoom Green

1 g/ litre of water 10-20 g 200 g 500 g
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Extremely Toxic
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Highly Toxic
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Moderately Toxic
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Slightly Toxic