ORCHARD SPRAYING EX PERf .MKXTS IX 1(J12. 65 



on the "standard dilution" plot and nearly equal to that on the 

 "one-fifth stronger" plot. 



Plot F, sprayed with a 3-3-50 bordeaux mixture. During the 

 present season if final conclusions were to be based on the effects 

 on the leaves alone bordeaux mixture showed much better 

 results than lime-sulphur. However the final record of the per- 

 centages of perfect and imperfect fruit, which are given later, 

 tell a somewhat different story. On plot F, where bordeauj^ 

 mixture and arsenate of lead was used there was almost perfect 

 control of scab on the foliage and no spray injury of the leaves 

 was observed. On the other hand very severe spray injury to 

 the leaves was experienced on the same variet}' in previous 

 years. 



Plot G, sprayed with "standard dilution'" lime-sulphur the 

 same as plot C, except that it received an application on May 

 24, just before the flower buds opened. On this plot throughout 

 the season the control of scab on the leaves was all that could 

 be asked for, and little or no spray injury was apparent. 



Es'FECT OE THE Sprays ox the Fruit. 



Notes and observations were made and records kept of the 

 development of scab and the appearance of russeting on the 

 fruit during the season. .These records do not give any addi- 

 tional information which is of material value and which is not 

 indicated by the condition of the fruit at the time of harvesting, 

 therefore they are omitted. 



The fruit on the trees on the experimental plots under con- 

 sideration averaged about 3 barrels per tree, giving on the entire 

 area over 400 barrels. So far as could be observed the condi- 

 tion of the fruit on the different trees in each plot was fairly 

 uniform, therefore it seemed to be an unnecessary expenditure 

 of time and labor to attempt to sort and count the entire quan- 

 tity. For the purpose of obtaining the necessary data the entire 

 crop on 6 trees in each plot was picked separately, placed in bar- 

 rels and taken to the packing shed for sorting. In all plots 

 except A. E, and F, where this was impossible, the 6 trees con- 

 stituted one of the rows nearest the center of the plot. The 

 amount of fruit actually used and counted to obtain the data 



