44 MASS. EXPERIMENT STATION BULLETIN 150. 



The results of the tests of the keeping quaUties of the berries of the 

 McFarlin plot and its check are remarkable in that they appear to indicate 

 absolutely no effect resulting from the spraying, a result never before even 

 nearly approximated in any test of berries, which had been sprayed with 

 Bordeaux mixture, carried out a,t the station bog. It should be noted in 

 this connection that the McFarlin berries, both sprayed and unsprayed, on 

 the station bog, and apparently also on other bogs in its vicinity, kept 

 unusually well this year, apparently as a natural result of the peculiar 

 weather conditions. 



Three new fungous plots were this season started on the station bog. 

 One of these (on Howe vines) was sprayed with hme-sulphur solution, 

 made from Frost's Powdered Lime-Sulphur, on June 7, June 18, June 28, 

 July 21 and August 7. This plot was picked on September 28. Its area 

 is 9 square rods, and it yielded 5Vs bushels, while a check of 6 rods im- 

 mediately adjacent yielded 12% bushels. The marked decrease on the 

 sprayed area was probably due to some injury caused by the spray. The 

 berries from this plot and its check were tested for keeping quahty, the 

 results being in favor of the check, the percentage of loss among the 

 berries of the plot being 34i/'2, while amongst those of the check it was only 

 25^/^. As far as the results obtained from this plot are concerned, therefore, 

 there seems to be nothing to be said in favor of this preparation for use 

 as a cranberry fungicide. It is planned to continue this test another 

 season. 



Another of the new plots was sprayed with Bordeaux mixture, prepared 

 in the usual way, on June 7, June 17, June 28 and July 21, and with neu- 

 tral copper acetate on August 7. The area of this plot is 9 square rods and 

 it yielded 7Vs bushels, while its check of equal area yielded 12 bushels. In 

 the storage tests the loss among the berries from this plot was approxi- 

 mately 17 per cent., while its check showed a loss of 27 Vs per cent. 



One-half of the fertilizer plot which had, previous to 1913, been treated 

 the most heavily with nitrate of soda, was also sprayed during the season, 

 for the first time, for the purpose of learning about the combined results 

 of fertilizing and fungous spraying. The spraying with Bordeaux mixture 

 was done on June 6, June 17, July 11 and July 21, and neutral copper 

 acetate was used on August 7. The whole fertilizer plot (plot 15) was 

 picked on September 16, and the sprayed portion jaelded only 3V2 bushels, 

 while the unsprayed portion gave approximately 6% bushels. In the 

 keeping tests, begun with these berries on October 28 and ended on 

 December 22, the sprayed berries showed a loss of only 31% per cent., 

 while the unsprayed lost 44% per cent. 



It will be seen from the figures here given that there was a marked 

 decrease in the fruit production on both of the two new plots treated with 

 Bordeaux mixture and neutral copper acetate. This is in accord with the 

 results generally obtained in the co-operative spraying tests carried on on 

 other bogs by the growers during the season, at least in those tests in 

 which spraying was done during the blooming period. While it is impos- 



