124 MANUAL OF FRUIT DISEASES 



(3) Since a well-drained orchard may be expected to suffer less 

 than one poorly drained, proper drainage should be provided. 



(4) Where irrigation is practiced, the water should be supplied 

 in reasonable quantities ; particular care is essential if irrigation 

 is practiced at or just prior to the ripening-period. (5) If the 

 climate in the region concerned is peculiarly subject to great 

 range in temperature and relative humidity, the above measures 

 should be more rigidly adhered to than where the climate is 

 quite the opposite. (6) The orchard should be sprayed to keep 

 the foliage in good condition; this practice has value in the 

 control of water-core in that the leaves, which are the organs of 

 transpiration, are better able to function. (7) Pruning should 

 not be done just before the fruit ripens, for such an operation 

 lessens the amount of foliage, thus favoring the development 

 of water-core. (8) Fruit should be picked in proper season ; 

 it should not be allowed to hang on the tree after it is ready 

 to pick, since this tends to increase the severity of the disease. 

 (9) As soon as the fruit is picked it should go into storage. 

 Under proper conditions of storage affected fruit, unless 

 seriously injured, will entirely recover. The storage should be 

 cool (not cold storage), and of even temperature. 



REFERENCES 



Norton, J. B. S. Water core of apple. Phytopath. 1 : 126-128. 



1911. 

 Clinton, G. P. Report of the botanist. Water core. Connecticut 



Agr. Exp. Sta. Rept. 1913 : 8-9. 1914. 

 O'Gara, P. J. Studies on the water core of apple. Phytopath. 3 : 



121-128. 1913. 

 Cobb, N. A. Water core in apples. New South Wales Agr. Gaz. 2 : 



286-287. 1891. 

 Campbell, A. G. Constitutional diseases of fruit trees. Victoria Agr. 



Dept. Journ. 3 : 463-465. 1905. 

 O'Gara, P. J. Water core of apple. Office of Pathologist and Local 



U. S. Weather Bur. Sta., Medford, Oregon, Bui. 9 : (not paged). 



1912. 



