FIELD EVALUATION OF FUNGICIDES AND BOTANICALS AGAINST POWDERY MILDEW OF MUNGBEAN

All the treatments significantly reduced powdery mildew intensity and increased the test weight and seed yield of mungbean over unsprayed control. Karathane 48 EC (@ 0.1%) was most effective, recording least mean powdery mildew intensity (15.14%) and highest grain yield (1425 kg/ha) and test weight (58.00 g). The second and third best effective fungicides were Contaf (@ 0.1%) and Calixin (@ 0.1%), which recorded mean disease intensity of 18.43 and 18.99 per cent, respectively and were at par. Botanical NSKE and plain water also recorded comparatively minimum disease intensity of 33.47 and 32.51 per cent, respectively over unsprayed control (54.65%). Cost benefit ratio showed that all the treatments were economical although Sulfex was most economical with C: B ratio of 1:21.11 followed by botanical NSKE (1:12.76), Contaf (1:7.83), plain water (1:7.61) and Calixin (1:7.28).