118 THE CULTURE OF T~ilE GEAPE. 



iv trellis ; stop all the laterals as tliej' appear at one eje 

 or leaf; continue to check them, as they push again, in 

 the same way. The second shoot on last year's wood 

 may be cut entirely out in June, or, as soon as it is d'er- 

 tain that no accident to the leading cane will require the 

 use of this as a substitute; the shoots on the spurs of the 

 old wood must be stopped, as often as they push, by cut- 

 ting them back to one eye. 



Stop the leading cane when it has grown about fifteen 

 feet, and before it reaches the top of the house ; allow 

 the upper lateral to grow ; this will prevent the eyes on 

 the upper part of the cane from bursting. This lateral 

 should be cut back to one eye, after it has grown three 

 or four feet ; if it still continue growing strong, check it 

 again. 



Early in July, dust sulphur on the floor of the house, 

 to prevent mildew ; to be effectual, one pound should be 

 used for every twenty square feet of the house. If mil- 

 dew should make its appearance, and continue to in- 

 crease, syringe the vines at evening, and dust the foliage 

 also with it.* 



Mildew is a fungus, which perfects its seed in a very 



* Nathaniel Silsbee, Jr., Esq., informs me, that in liis grapery, which is 

 a cold hou.°e, ho covers the floor twice, every summer, with sulphur, and 

 recommends its application in the middle o'' the day, as, at that time, part 

 of it will rise and settle on the vine, but, n such small particles, as to do 

 no injury. He has found this effectual in preventing mildew. If this fun- 

 gus makes its appearance before the sulphur is applied, it will be more dip 

 ficult to suppress its growth. It has been very troublesome, in late houses, 

 this July, (1S4S,) and I had to dust the foliage and fruit before it was check- 

 ed, and the quantity used was much greater than that named above. In 

 early houses, I never have it. 



