178 The Principles of Fruit-growing 



work of- tilling, pruning and fertilizing, these distances 

 may be reduced somewhat with profit, except, perhaps, 

 in the case of apples. 



Double-planting', fillers. 



These remarks on the proper distances call for dis- 

 cussion of the question as to whether it is good policy to 

 plant shorter-lived trees, as peaches, between apples and 

 pears. 



The trees will thrive under such planting; but whether 

 it is advisable depends on the man and the economic situ- 

 ation. In general, it should be discouraged; but if the 

 orchardist gives the very best attention to fertilizing and 

 cultivating, plantations may be mixed with good results 

 (as in Fig. 27). It is usually best to plant each species 



FIQ. 27. Double-planting. Bush-fruits between orchard trees. 



by itself, that it may receive its own treatment, as 

 peaches in a peach orchard, apples in an apple orchard, 

 and quinces in a quince orchard. 



Another form of double-planting, now much in the 

 public mind, is to place early-fruiting varieties of the 



