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 
cut . B. S. Water core of apple. Phytopath. 1: 126-128. 
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 
ee Weather Bur. Sta., Medford, Oregon, Bul. 9: (not paged). 
