BUSH FRUIT PRODUCTION 



Many of the more experienced commercial 

 growers of black raspberries hold a plantation 

 for three or four years only, replanting so fre- 

 quently to maintain the vigor of their planta- 

 tions. This system could be followed to ad- 

 vantage in gardens in which black raspberries 

 tend to "run out" in a few years. This decline 

 in vigor may be due to poor cultural condi- 

 tions, but is more likely to be due to one of 

 the diseases of the mosaic type (see page 59). 



Planting 



Black raspberries are usually grown in rows 

 rather than hills. They are planted three or 

 four feet apart in rows which should be at 

 least six feet apart. Seven usually is better 

 in locations favorable to this fruit. It is a 

 common fault to plant the rows so close to- 

 gether that after the plants are mature it is 

 almost impossible to work between the rows. 

 The planting distance, however, should be ad- 

 justed to the varieties, strength of the soil, and 

 the system of culture to be employed. After 

 the first experience these things may be taken 

 into consideration. 



Planting should be done as early in spring 

 as the ground can be worked. The rooted tips 

 send up new canes in spring and these new 



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