Green Global
Foundation   Journal
...an emerging window for scientific research and publication across the globe

EFFICACY OF DIFFERENT FOLIAR FUNGICIDES IN CONTROLLING BIPOLARIS LEAF BLIGHT OF WHEAT (Pages : 12 - 18)

Bipolaris leaf blight is a major disease of wheat in Bangladesh caused by a fungus named Bipolaris sorokiniana (Sacc.). The experiment was conducted to evaluate the efficacy of different fungicides against the disease in wheat. It was carried out in the research field of Bangladesh Wheat and Maize Research Institute, Dinajpur, Bangladesh. The design was Randomized Complete Block (RCB) with 3 replications and 8 treatments (7 fungicides + control) for the two consecutive years (2016-17 & 2017-18). All the fungicides were found effective against the disease with 66 to 90% disease control based on pooled data. The trends of disease reduction as well as other attributes were more or less similar in both the years. Among all of treatments, the lowest percent of diseased leaf area (DLA) (7.93%) and area under disease progress curve (AUDPC) (151) was obtained with Tilt 250 EC, while the highest 1000-kernel weight (50.82 gm) as well as grain yield (4006 kg/ha) was also obtained from the same treatment. The other effective fungicides were Nativo (8.43%) and Folicur (9.34%). Economic analysis showed that the highest Net returns of Tk. 30440/ha with BCR 8.53 was also obtained from applying with Tilt 250 EC fungicides followed by treatment Folicur 250 EC. The fungicidal group Propiconazole or Tebuconazole or combination of Tebuconazole + Trifloxystrobin can be recommended to the farmers for controlling the intensity of the disease as well as increasing the grain yield.Download