274 Agkicultijral Experiment Station, Ithaca, IsT. Y. 



This table contains in a condensed form the principal results obtained 

 this year in the orchard of Mr. McGowen, and it is the basis for many 

 of the conclusions which follow. But additional tables are necessary 

 in order to realize the full force of many of the figures, and to compare 

 in a more convenient form various results obtained. 



JViitnber of a2yplications necessary. — To reply to the question, How 

 many applications can be applied with profit ? is not an easy task . 

 Too many factors must be taken into consideration to give an answer 

 which will apply to all apple growers. It can be shown what the 

 results of varying numbers of treatments have been, and from this each 

 grower must decide for himself how many can be made with profit. 

 The percentages of gain in first-class apples of the sprayed over the 

 unsp rayed portions are given below: 



Table II. — Showing Percentage of Gain in First-class Apples 

 Obtained from Varying Numbers of Applications. 



This table emphasizes several facts. In the first place, it shows 

 what an enormous range of variations is found in the treated apples of 

 different varieties. The series is most nearly complete in the King, but 

 the Fall Pippin shows the benefits of six applications, and the Maiden 

 Blush of four. The last was more affected by four applications than 

 the Kings by six, and undoubtedly the Fall Pippin would have shown 

 a still greater difference, judging from the effect produced by six 

 applications. 



Turning to the King, it will be seen that on the average two appli- 

 cations increased the number' of first-class apples ninety-two per cent, 

 four applications 115 percent, and six applications 150 percent. In 

 making these averages, only the application of Bordeaux mixture, 



