90 CULTURE OF THE GRAPE. 



iner, you may cut off the wood above #, and in the fall 

 remove all above a on the stock, and c on the scion." 



This method, however successful, has many disadvan- 

 tages, and will require too much careful watching to 

 come into general use. 



It will be observed that grafting-wax is not recom- 

 mended. Most kinds of composition are indeed posi- 

 tively injurious, seeming to enter and poison the porous 

 wood. Below the surface, the moist earth is all-sufficient 

 as a covering ; but in extreme cases, where grafting above 

 ground is desirable, the air may be excluded by a judi- 

 cious use of wax. 



It has been the practice of some to whip-graft single 

 eyes upon short pieces of roots, precisely in the manner 

 of root-grafting the apple. This may be done with suc- 

 cess, and new varieties may be propagated with stronger 

 growth the first season than from single eyes; yet the 

 gain is so inconsiderable, and the eyes root with so much 

 freedom, that this practice is not specially desirable. 



Still another form of grafting, "by approach," or inarch- 

 ing, is in frequent use in glass houses, and may also be 

 successfully applied in the vineyard. It consists in bring- 

 ing a potted vine alongside of a stock at any time during 

 the growing season, the month of May being best. 



