476 



BULLETIN 229. 



In order to get an accurate estimate of the damage done by the scab, 

 the percentage of the apples thus affected was determined for each orchard. 

 This was done by counting and examining apples in each. Every apple 

 that had any scab spots was counted as scabby. Those orchards given in 

 table ii as having 0-5 per cent scab gave practically perfect fruit the 

 real No. I apples. Those reported as having 6-25 per cent scab gave 



TABLE 9. 

 Spraying, 1904. 



TABLE 10. 

 Kinds of sprays used in 1904. 



very good fruit. From those having over 50 per cent scab, it was prac- 

 tically impossible to put up real No. I apples. 



In practically no unsprayed orchards were over half of the apples free 

 from scab. In nearly all such orchards about ninety per cent were 

 scabby. In 56 per cent of the orchards sprayed once, the apples were not 

 over half scabby. The percentage decreased with the number of spray- 

 ings. Over half of those orchards that were sprayed three times were 

 practically free from scab. 



These facts will not agree with the opinions of some of the owners 

 of unsprayed or poorly sprayed orchards. Many such men do not recog- 

 nize the scab; or if they do, they think that when the diseased tissue peels 



