140 DIE-BACK OF CHILLIES IN BIHAR 
also showed a greater amount of leaf curl. However the effect of shade as far 
as the disease on the chilli stems was concerned was very marked. They 
suffered the least from die-back. That shade does check die-back is also 
vident from the following observation. It so happened that the three end 
lines of chilies had no drill of maize to their south and so they remained 
unshaded. The result was that this set of three lines was more badly attacked 
than the rest. It had 32 plants suffering from die-back ; the neighbouring set of 
three rows had 11 diseased plants, while in the remaining 9 sets the number of 
died-back plants varied from 6to 9 each set. It was in the unshaded rows 
hit the disease first appeared. 
Whether shade has any effect on the total yield and on the percentage of 
diseased fruits cannot be judged from this experiment because, as already 
stated, maize plants were blown over by high winds inthe beginning of October 
and they were uprooted three weeks later, as instead of doing any further good 
they were damaging the chilli plants underneath them. Thus at the time 
when the fruits generally get attacked they remained unshaded. The 
percentage of diseased fruits in each of the first four pickings was 68°5, 22:0, 
44-0 and 7-7, almost the same as that for the control plots. 
Plot Nos. 3 and 6. These were control plots. Of all the plots, plot No. 3 
was most severely attacked by Choanephora and die-back ; the natural result 
was that the yield of fruits was greatly reduced ; the attack was first observed on 
the 5th of October. Piot No. 6 was found attacked three days iater. It was 
a little more diseased than the sprayed pilot No. 7, but much less than No. 3. 
Still however the percentage of diseased fruits in boththese controi plots was 
almost the same, and much higher than that in the sprayed plot. The 
percentage of diseased fruits from each ofthe first four pickings from plot No. 3 
was 78°5, 30°0, 33°0 and 12°8, and from No. 6 was 72°8, 33:3, 37:0 and 16°6. 
Plot Nos. 4 and 8. From experiments made in previous years it had 
been found that chillies sown a month later than usual suffer very little from 
die-back, but the yield of fruits was greatly reduced. To see if manuring could 
remedy this defect, plot No. 8 was manured at the rate of 2 ewt. of superphos- 
phate and 1 ewt. of nitrate of soda per acre. Seeds for this plot were sown in 
seed beds in the end of August, and the seedlings were transplanted a month 
later. Plot No. 4, which was manured at the same rate, served as a check, 
the sowing time being normal. 
As a result of manuring the growth of the plants in plot No. 4 was more 
vigorous than those in the other plots. Die-back on this plot was observed 
first onthe 8th of October ; and it was rather severe, but was not very much 
more than on plot No, 6 and decidedly less than that on No. 3. The total 
