454 AMERICAN GRAPE TRAINING, CONCLUDED 



which has been bearing a number of years will 

 nearly always have a few vines in process of re- 

 newal. The reader shonld not receive the impres- 

 sion, however, that the life or vitality of a vine is 

 necessarily limited. Vines often continue to bear 

 for twenty years or more without 'renewal ; but 

 the head after a time comes to be large and rough 



288. A Concord vine thirty years old. 



and crooked, and often weakened by scars, and 

 better results are likely to be obtained if a new, 

 clean vine takes its place. Fig. 288 shows the 

 great stump of a Concord vine thirty years old, 

 and which is still in thrifty bearing condition. 



The High Renewal is extensively used in the 

 lake region of Western New York for all varie- 

 ties. It is particularly well adapted to Delaware, 

 Catawba, and other weak or short varieties. 



