PUNJAB AGRICULTURAL UNIVERSITY
WHEAT AT HEADING STAGE IDEAL FOR KARNAL BUNT MANAGEMENT: PAU
LUDHIANA, FEBRUARY 6:
Karnal bunt (KB), a fungal disease of wheat, is known to partially transform the wheat gains into black mass of fungal spores. The disease perpetuates through seed as well as soil. Giving this information, Dr P.S. Sekhon, Head, Department of Plant Pathology, Punjab Agricultural University (PAU), said that during last year, the disease appeared in low to moderate form in all the districts of the state except Fazilka. The number of Karnal bunt infected samples was high in the districts of Amritsar, Kapurthala, Gurdaspur, Pathankot and Tarn Taran, he told. So there is enough inoculum present in the fields for the infection of the wheat crop under cultivation, he observed. Dr Sekhon said that in all the wheat varieties except HD 3086, heading stage appears after 90-92 days of sowing which is ideal for infection of the disease. The prevailing weather conditions due to cloudiness and intermittent rains in the past have led to high humidity and favourable temperature in the atmosphere, which is conducive for the infection of Karnal bunt, he added.
Dr Sekhon appealed to the farmers that heading is ideal stage to spray the crop with Tilt 25 EC or Folicur 25 EC @ 200 ml in 200 litres of water per acre in order to raise disease free healthy seed crop. Spray at full ear emergence stage may not be beneficial, he said.