• Control woolly aphids to reduce bull's eye rot of apple. 



• Supplement fruit calcium with foliar sprays during 

 the growing season. High calcium fruit is less prone to 

 decay and disorders than low calcium fruit. 



•Use the minimum amount of nitrogen fertilizer nec- 

 essary to maintain plant vigor. High N fruit are more 

 prone to various postharvest problems than lower N 

 fruit. 



18 



Fruit Notes, Summer, 1990 



