AN APPLE ORCHARD SURVEY OF ORLEANS COUNTY, NEW YORK. 479 



ing and for a possible difference due to other causes than spraying, there 

 is certainly enough difference left to give a large profit from the practice. 

 The relation of the scab to the average yield and price. It will be seen 

 from table 1 1 that some of the orchards that were sprayed twice or three 

 times had as much 

 scab as some that 

 were sprayed only 

 once. Another clas- 

 sification was made 

 on the basis of 

 results obtained, 

 rather than on the 

 number of spray- 

 ings. Table 14 is 

 a summary of 

 these results, when 



the orchards were 







grouped according 

 to the freedom 

 from scab, regard- 

 less of how that 

 freedom was se- 

 cured. As would FIG. 164. Ben Davis. The commercial standard of the 

 be expected, this Middle WesL 



shows a greater difference than is shown by table 12. Those orchards that 

 were practically free from scab gave 54 per cent larger yield and 61 per 

 cent larger income than those with over three-fourths of the apples scabby. 

 A large part of the difference in income is due to the fact that from the 



TABLE 14. 

 Relation of scab to income and yields, 1904. 



