SPRAYING DEMONSTRATIONS. 



285 



sprayed trees and 6.6 bushels per tree from unsprayed ones, or a 

 difference of over 27 per cent in favor of spraying. This difference in 

 yield alone, to say nothing of differences in quality of sprayed and 

 unsprayed fruit, was enough to have paid the cost of spraying twice 

 over. 



The difference in quality of sprayed and unsprayed fruit was very 

 noticeable. The average per cent of culls in the fruit of all the orchards 

 was about 23 from unsprayed trees as against only 8 from sprayed 

 trees. A striking diffez-ence in the percentages of windfalls was also 

 noticed, the average being, for the unsprayed trees of all the orchards. 



Fig. 7. Small sprayed tree of Mis- 

 souri Pippin in the Teciimseh orchard 

 with its entire crop of fruit. Sound 

 fruit (5 bushels) on the rijrht and 

 scabby and wormy fruit (3 bushels) 

 on the left. 



about 34 per cent, and for the sprayed trees 17 per cent. The codling- 

 moth is probably responsible for more of the late windfalls than is 

 scab. In case of some 16,000 fruits of Winesap and Ben Davis examined 

 in the Lincoln orchard, the windfalls constituting about one-fifth of 

 the whole crop, contained about one-third of all the scabby fruits and 

 nearly one-half of all the wormy ones. That there was so large a 

 number of wormy apples still hanging to the trees was due quite 

 probably to the fact that a great number of worms had entered the 

 fruits so recently that they had not injured them seriously at picking 

 time. 



The difference in quality was responsible in large measure for the 

 difference in value of fruit from sprayed and unsprayed trees. While 



