338 



Report of the Horticulturist of the 



The annual average shows an increased average yield per tree 

 with Fall Pippin, Roxbury Russet, R. I. Greening and Northern 

 Spy, and a decrease in the case of the Baldwin. The trees are 

 30 X 30 feet, making 48 to the acre. The average annual increase 

 per acre for the first four varieties named is shown below. The 

 untreated Baldwins averaged 13.44 bushels more fruit per acre 

 annually than did the treated Baldwins. 



Table VI. — Increased Yield on Treated Sections. 



NAME. 



Fall Pippin 



Roxbury Eusset 

 K. I. Greening ,, 



Northern Spy 



Baldwin 



Aiiiinal 



average incrsase 



per tree. 



BqbIisIs. 

 0.10 

 2.90 

 0.05 

 3.40 



—0.28 



Rate 

 per acre. 



Bushels. 



4.8 



139-2 



2.4 



163.2 



—13.4 



An examination of Table V shows that the sections which 

 received no ashes on the whole increased in yield from 1893 to 

 1896, and in 1897, after the exceedingly heavy crop of the previous 

 year, the yield exceeded that of either of the first two years the 

 orchard was put under experiment. The sum of the average yields 

 of the varieties named in that table are shown below. 



1193. 



Treated, bushels 10.21 



Untreated, bushels 5.37 



This shows an increase in the average yield even where no 

 ashes were used, which may be explained by the fact that prior 

 to the spring of 1893 the orchard was in sod, but since that time 

 it has been kept under cultivation. 



Scab Resistant Varieties. 



The data which have been gathered during this experiment 

 throw some light on the question of the variation of different 

 varieties in their natural ability to resist the attacks of the scab 

 fungus. Fall Pippin makes itself conspicuous each year by taking 

 front rank among the varieties which are susceptible to this dis- 



