6 



CIRCULAR 935, U. S. DEPARTMENT OF AGRICULTURE 



Table 3. — Relation of maturity and severity of bruising to blue mold 

 decay infections of Delicious apples, harvest of 1947 



Severe Bruises x 



Kind and time of 

 treatment 



Maturity 



at 

 harvest 



Fruits 

 tested 2 



Bruised 



areas 

 infected 



Fruits infected 



Bruising 



Inoculation 



At 



bruised 



areas 



At non- 

 bruised 

 areas 



Harvest 



Harvest 



[Early 



< Medium 



[Advanced. _ 



Number 

 31 

 30 

 33 



Percent 

 17. 7 

 36. 6 



77. 2 



Percent 

 35. 5 

 66.6 

 96.9 



Percent 

 3.2 

 

 12. 1 



Average 





43.8 



66. 3 



5. 1 







[Early 



< Medium 



[ Advanced. __ 







Harvest. _ __ 



33 

 31 

 37 







1. 6 

 1.3 





 3.2 



2.7 





 







2. 7 



Average 







1.0 



2.0 



. 9 













Slight Bruises 3 



Harvest 



Harvest 



[Early. _ 



I Medium 



[Advanced. _ 



30 

 32 

 37 



10.0 

 15. 6 



25. 7 



20. 

 31. 2 

 40. 5 





 3. 1 



24.4 



Average 





17. 1 



30. 6 



13. 8 







[Early 



I Medium 



[Advanced. _ 







Harvest 



30 

 30 



38 





 

 





 

 





 











Average 



















Harvest 



[Early 



I Medium 



[Advanced. _ 









27 

 25 

 31 

















8. 









19. 4 











Average 









9. 1 





Untreated _ _ 



[Early 



I Medium 



[Advanced. _ 













28 

 24 

 31 











Untreated. _ 





























Average 



























1 Severe bruises produced by pressure of 75 pounds. 



2 2 bruises were produced on each apple bruised. 



3 Slight bruises produced by pressure of 40 pounds. 



