Monitoring of Wheat Diseases

Wheat fields were monitored in the eastern plains of Nepal during 2016 and 17 at tillering, heading, grain filling and ripening stage of the crop. Incidence of different diseases was recorded in the field. The diseased specimens were also collected for laboratory investigation. Occurrence of disease was recorded with respect to location, season, genotype, incidence and severity. Study revealed that leaf rust and foliar blight were the major diseases of wheat in the eastern region. However, powdery mildew and smut were also severe in many areas. Highest incidence of leaf rust was recorded in late sown NL 297. Since the disease occurred on the late season, most of the crop escaped the heavy infestation of the disease. Leaf rust severity was upto 40% in most of the locations. Gautam was moderately resistant but Vijaya was moderately susceptible to the diseases. Tilotama, NL971 and Aditya were free from the leaf rust disease. Details of wheat rust and other diseases were recorded at 31 locations and entered into rust tool box. Wheat blast was not observed in any areas.