APPLE SPRAYING EXPERIMENTS IN I915. 



l8l 



rows, 12 and 13. Row 11 adjoined plot 7 on the south, sprayed 

 throughout the season with bordeaux mixture. Row 14 came 

 next to the unsprayed check on the north. The question arose 

 with reference to plot 8 whether the increased russeting might 

 result from spray drifting across from the plot sprayed entirely 

 with bordeaux mixture. A like situation occurred in 1914 with 

 the plot sprayed with bordeaux mixture for the first application, 

 which was similarly located with reference to another plot, 

 sprayed throughout the season with the same material. That 

 season, however, the increase in russeting on the plot receiving 

 only one application of bordeaux mixture was not discovered 

 till all the fruit was harvested and the sorting had been begun. 

 No differences could be observed, before harvesting, in the 

 amount of russeting of the fruit on the different rows of trees 

 on plot 8 in 191 5. If any such differences did exist, due to the 

 spray drifting across from the adjoining plot, it would seem 

 that row 11, the nearest, should show more and row 14, the 

 farthest removed from plot 7, should show less russeting than 

 the two central rows. Accordingly the fruit on these two out-: 

 side rows was harvested and sorted separately. The results 

 obtained as far as they apply to russeting are given in Table 2 

 along with similar data with reference to rows 12 and 13. 



Table 2. 

 Russeting of Fruit on Plot 8. 



Total number 

 of apples. 



Number 

 russeted. 



Per cent, 

 russeted. 



Row 11, nearest plot 7 



Row 14, nearest plot 9 



Rows 11 and 14, combined 



Rows 12 and 13 (Plot 8, Table 1) 



2,786 

 2,713 

 5,499 

 9,659 



516 



610 



1,126 



2,121 



18.52 

 22.48 

 20. 4S 

 21.96 



It is evident from the above figures that the bordeaux mix- 

 ture applied to plot 7 was in no way responsible for the in- 

 creased amount of russeting on plot 8. It will be seen that the 

 fruit on the row nearest the bordeaux sprayed plot showed less 

 russeting than that farthest removed or nearest the unsprayed 



