Karnal Bunt of Wheat
Symptoms:
The infection is usually confined to a few grains in the spike with irregular arrangement. In severe cases, the grain is reduced to black shiny sac of teliospores. The bunt affected plants emits a foul smell which is mainly due to the presence of Trimethyl amine.
Management of Karnal Bunt of Wheat
Cultural Control:
Use disease free seed for sowing. Intercropping with Gram or Lentil. Judicious application of nitrogenous fertilizers. Avoid excessive irrigation at the time of flowering.
Biological Control-
Seed treatment with (Trichoderma harzianum and T. viride) @ 6-10g/kg seed and foliar spray of neem (Azadirachta indica) and amaltas (Cassia fistula) extracts @5ml/lit of water.
Chemical Control:
- Seed treatment with Thiram @ 3 g/kg of seed.
- Foliar spray with Propiconazole 25 EC @ 1 ml/lit of water OR Bitertanol 25 WP @ 1 g/lit of water
- Farmer has to done inspecction of his crop and if needed give last irrigation.
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