BUSH FRUIT PRODUCTION 



the young plant is likely to have few or no 

 roots of its own. This method is more likely 

 to be successful on soils which are naturally 

 moist than on sandy soils, but when intelli- 

 gently done it is probably the most satisfac- 

 tory way to start a new raspberry patch from 

 an old one on the premises. 



Selecting Disease-Free Stock 



Avoiding diseases has become the most im- 

 portant problem in raspberry growing. Since 

 the raspberry is attacked by several incurable 

 troubles it is important that the stock for 

 planting should be disease-free. Suckers 

 should be selected from plants which are 

 known to be free of mosaic, leaf curl, and 

 crown gall (see pages 45 and 46). 



Mosaic and leaf curl are not easily detected 

 unless the plants are in full leaf. In planta- 

 tions where such diseases are known to have 

 obtained a foothold, and that includes almost 

 every plantation, sections which show no evi- 

 dences of these troubles should be staked off 

 or otherwise marked during the latter part 

 of the growing season. This makes it possible 

 to select disease-free stock when the time ar- 

 rives for transplanting dormant suckers. 

 30 



