The disappearance of water core and the occurrence of internal breakdown 

 appears to be related to the severity of water core at harvest. In 1926, 

 Brooks and Fisher of the U. S. D. A. stated that picking at the proper stage 

 of maturity is the most practical preventive now known for water core. This 

 statement still holds true in 1963. 



The data presented in Table 1 indicate that, under conditions at Arnherst, 

 Delicious should be picked before mid-Octobei in order to minimize storage 



water core may be observed by sampling and cutting the more mature Delicious 

 apples on the tree. The fruit should be harvested before or while the disorder 

 is limited to a series of small water-soaked spots bordering the primary vascular 

 bundles. However, growers should plan to treat the Delicious held for late 

 storage with DPA for scald control. 



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