Report of the state entomologist 1915 31 



the preceding, and that the percentage of perfect fruit remained 

 about the sam.e in plots i and 2, despite the decrease in yield, while 

 in plot 3 it was smaller, the variation in each instance being due to 

 the small yield of the plots receiving more than one application. 

 A decrease in the percentage of scab infection is to be noted on these 

 three plots, though there is little variation between plots 2 and 3, 

 while there is a higher and nearly identical percentage of leaf roller 

 injury on plots 2 and 3. There is a nearly regular increase in the 

 percentage of wormy apples in these thiee plots, due almost entirely 

 to the progressive reduction in the crop. This is practically paralleled 

 by the increased percentage of blemishes caused by late-hatching 

 larvae. 



Compared with the checks or unsprayed trees, these three plots 

 show a marked improvement, making due allowance for the reduced 

 yield of plots receiving more than one spray in the percentage of 

 perfect apples and the reduction in percentage of scabby fruit. There 

 is also a very marked reduction in wormy apples. It will be noted 

 that a simimary of the data from the special trees given above, is 

 not materially different from that obtained on the regular experi- 

 mental trees. 



Webster orchard 



This was an exceptionally fine Baldwin orchard m.anaged by 

 Mr J. A. Talbot of Spencerport, to whom we are indebted for most 

 hearty cooperation. The orchard is well cultivated, the trees being 

 38 to 40 years old and standing about 40 feet apart with plenty of 

 room for efficient spraying. It is located just north of a highway 

 and three plots with two check trees were laid out as follows: 



Plot I was 2 trees north of the highway and 2 trees east of the 

 western boundary. 



Plot 2 was 9 trees north of the highway and 2 trees east of the 

 western boundary. 



Plot 3 was 2 trees north of the highway and 8 trees east of the 

 western boundary. 



The check trees were 13 trees north of the highway and 2 trees 

 east of the western boundary. 



Plots 1 , 2 and 3 were therefore well separated by the usual barrier 

 trees, 2 on each side though but i tree separated the northern trees 

 of plot 2, namely, A and B, from the check trees X and Y. 



The spraying was done May 20th, Rex lime and sulphur being 

 used at the rate of i to 40 and Ansbacher arsenate of lead at the 

 rate of 3 pounds to 50 gallons of water; 15 pounds of freshly slaked, 



