34 



NEW YORK STATE MUSEUM 



The yield of plot 3 was considerably larger than that of the two 

 preceding, amounting to nearly 10,000 apples, the range for indi- 

 vidual trees being from 1229 to 1828, while the perfect fruit varied 

 from 205 to 385 apples. The lowest percentage of wormy apples 

 was 8.80 and the highest in this plot 16.10, the average being 12.54. 

 The " shallow " injured fruit varied from approximately one-half 

 to three-fourths of the total wormy, the average for the plot being 

 two-thirds. 



Hilton orchard, summary of plots, 1916 







TOTAL 

 FRUIT 



PER- 

 FECT 



SCAB 



LEAF 

 ROLLER 



CODLING MOTH, WORMY 





Total 



End 



Side 

 July 



Shal- 

 low 



Side 

 August 



I 



Total 



4 915 



366 

 7-44 



494 



II. 17 



1 819 

 18.37 



2 679 



13.93 



88 



2.57 



4 414 

 89.80 



3 686 

 83.35 



7 299 

 73-74 



15 399 

 80.05 



3 299 

 96.37 



65 I 

 13.27 



339 

 7.66 



690 

 6.98 



1 680 

 8.75 



2 74 

 8.00 



863 

 17.55 



710 

 16.05 



1 242 

 12.54 



2 815 

 14.64 



372 

 10.87 



31 

 .63 



15 



• 33 



17 

 .17 



63 



• 33 



12 



• 35 



357 

 7.26 



252 

 5.69 



292 

 2.95 



901 

 4.69 



125 

 3.65 



393 

 7-99 



405 

 9.15 



837 



8-45 



1 635 

 851 



203 

 593 



84 

 1.70 



4i 

 .92 



97 

 • 99 



2 



Total 



4 422 



3 



Total 



9 898 



1-3 



Total 



19 235 



222 

 I. 16 



Check 

 T 

 P 



3tal 



3 423 



33 



.96 









The summarized tabulation shows a decidedly heavier crop on 

 plot 3 with a corresponding increase in the percentage of perfect 

 apples and a marked decrease in the percentage of scabby apples, 

 this latter ranging from nearly 90 per cent in the case of plot 1, to 

 83 1 per cent for plot 2, and 73! per cent for plot 3. These figures 

 should be compared with the 96J per cent of scabby fruit on the 

 check trees. There is also a marked decrease in the percentage of 

 wormy fruit in plots 1-3, though this is to be explained to some extent, 

 at least, by the fact that the yield on plot 3 was nearly equal to that 

 of plots 1 and 2 combined, thus the apparent benefit from the third 

 spraying must be reduced considerably if we make allowance for 

 this factor. The proportion of " shallow " injured fruit is a little 

 less than one-half the total wormy for plot 1, a little over one-half 

 for plot 2 and a little over two-thirds of the total wormy for plot 3, 

 which would indicate no great reduction in this type of injury as a 

 result of the later sprayings. The average percentage of wormy 

 fruit for the three plots is 14.64 and this makes a poor comparison 

 with the 10.87 P er cen t of wormy fruit on the one check tree, which 



