594 



EXPERIMENTAL FARMS 



5 GEORGE v., A. 1915 



better in appearance. The following table gives some of the results from using these 

 two spraying materials, and is an average from the plots sprayed. 



Bordeaux 



Lime-sulphur 

 No spray 



p.c. Russet 

 medium. 



40-75 

 1-76 

 0-00 



p.c. Russet 

 bad. 



25-69 

 0-00 

 0-00 



p.c. Scab 

 medium. 



7-91 



7-25 



28-99 



p.c. Scab 

 bad. 



4-45 

 4-31 



38-45 



The Gravenstein was used in this test and it will be noticed that over 66 per cent 

 of the fruit was injured by russet caused by the Bordeaux spray. It will be seen 

 also that the lime-sulphur controlled scab slightly better than Bordeaux. Bordeaux 

 gave 12-36 per cent scab against 11-56 per cent for lime-sulphur and 67-44 per cent 

 scab where the plot was not sprayed. 



The results at Bridgetown were equally as conclusive as to the russeting of the 

 fruit, but Bordeaux showed a little -better control of the scab than lime-sulphur. 



p.c. Russet 

 bad. 



p.c. Scab 

 medium. 



p.c. Scab 

 bad. 



Bordeaux 



Lime-sulphur 

 No spray 



60-8 

 5-8 

 GO 



0-7 



0-6 



30-9 



0-0 



0-0 



33-5 



It will be sefen that 64-4 per cent of the fruit of the trees not sprayed were badly 

 or medium badly affected with the scab as against a very small percentage where Bor- 

 deaux or lime-sulphur was used. 



The foliage was not injured so much from Bordeaux in this orchard, and during 

 the early part of the season appeared to be if anything more vigorous in the Bor- 

 deaux plot than on the lime-snlphur; the condition changed, however, and as the 

 season advanced tlie lime-sulphur plot had much less injury. The Gravenstein was 

 used in this test. 



At Falmouth, Bordeaux, as compared with lime-sulphur on a block of Spy apples, 

 gave results as follows : — 



p.c. Russet :p.c. Scab. 



Bordeaux 



Lime-sulphur 

 No spray 



8-63 



3-94 



47-01 



The per cent of russet, it will be noticed, is quite large, and the lime-sulphur plots 

 had less scab than the Bordeaux plots. 



ALTEfi^NATIXG BORDEAUX AND LIME-SULPHUR. 



Various applications of Bordeaux alternating with lime-sulphur were tried to 

 determine whether it is practical or advisable to u&e one or the other of these mixtures 



Kentville. 



