24 NEW YORK STATE MUSEUM 



A study of the summary of the plots in this orchard gives a better 

 idea of the results actually obtained. The total yield to each plot 

 did not vary greatly and it will be noted that there was a progressive 

 increase in the perfect fruit, resulting from the additional sprayings 

 and due largely to the better control of scab, the percentage of apples 

 infected by this fungus being reduced from 80.5 per cent in plot i to 

 40.4 per cent in plot 2, and 23.57 pei" cent in plot 3. 



The three sprayings for the codling moth, it will be seen by refer- 

 ence to the tabulation, had very little influence in reducing leaf 

 roller injury. 



The percentages of wormy apples obtained from the three plots 

 show no material benefit in worm-free fruit from the second and 

 third applications. In fact, there is a larger percentage of wormy 

 apples on plot 3 than plot i, which is probably due to some factor 

 which can not be readily explained at the present time. It will be 

 noted that there is a progressive increase in the side injury, resulting 

 from the work of late-hatching larvae of the first brood. This, 

 likewise, we believe to be largely accidental. 



The percentage of wormy fruit on the two check trees is so high 

 that it is not surprising that better results should not have been 

 obtained by spraying. The treatment on each of the three plots 

 has reduced the percentage of wormy apples by over 55 per cent. 

 This of itself is striking testimony to the value of poisoned appli- 

 cations for the destruction of the codling moth, though we would 

 not give the impression that the results obtained in this orchard, 

 striking though they be, are entirely satisfactory. 



Kendall orchard 



This greening orchard, the property of Mr H. E. Welknan, is 

 bounded on the west by a highway, a rather well-marked drive on 

 the south and extends north to another highway. Eleven trees lie 

 between the experimental plots and the western highway. 



Plot I was located 3 trees north from the southern margin, plot 

 2, 9 trees north, and plot 3, 15 trees north, the check trees being 

 22 trees north. The bloom in this orchard,- while heavy on the rows 

 containing the actual experimental trees, was somewhat irregular, 

 and it was therefore not feasible to have the plots separated by more 

 than 3 trees.' Two rows on each side were used as barriers. The 

 orchard is about 40 years old, the trees being set 33 by 33 feet and 

 large enough so that the branches are moderately close but not so 

 near as to prevent satisfactory spraying. Mr Wellman states that 

 it has been his practice to do a very thorough job when making the 

 calyx application, treating the nonfruiting as well as the bearing 



