Indian Institute of Horticultural Research, Bangalore 560 089
The results revealed that among all the fungicides Topsin M (0.1%) was most effective, showing 69.79% leaves infected/branch as against 86.93% in the control. This was closely followed by Delan (0.2%) and Bavistin (0.1%) where 71.68 and 72.65% infected leaves were recorded. Whereas, the data on average number of spots/leaf showed Dithane Z-78 (0.2%) to be having the minimum number of spots (12.53) against 24.54% in the control. Though other treatments were also statistically at par with this, but next best were Baycor EC (0.1%) and Bavistin (0.1%), showing 13.14 and 14.14 spots/leaf respectively. The correlation coefficient between per cent leaves infected and number of spots/leaf indicated significant linear regression equation of Y = 64.21 + 0.854x; r = 0.5236. It was also recorded that the fungicidal sprays were much superior than leaf mulching. Among fungicides, Bavistin (0.1%) was the most effective, showing only 58.63% infected leaves against 94.71% infected leaves in the control. In mulching 72.12% leaves were infected.
