BN-15044—-X 
Figure 3.—Scion roots growing 
from a bud union that was 
accidentally covered with soil. 
These roots should be removed. 
from a No. 214 can. Place the can 
around the budded vine stump and 
fill it with sand to a depth of 1 or 2 
inches above the bud. Mound moist 
soi] around the can, then remove the 
ean. This leaves a sand core in the 
soil mound. 
Several shoots may develop from 
the vinifera bud. Let them grow to 
8 to 10 inches in length, then use a 
sharp knife to take off all but one 
vigorous upright. These vigor- 
ously growing shoots are tender and 
easily broken. Use care when re- 
moving the excess shoots and lat- 
erals to prevent breaking the shoot 
you wish to save. 
The remaining shoot can be 
trained to form the permanent 
trunk of the vine. 
Remove the mounded soil from 
the base of the vine when you prune 
off the excess shoots. 
A straight trunk of proper height 
for training can be established dur- 
ing the first summer’s growth. 
Summer training depends on the 
form of vine you want and the 
trellis system you plan to use. 
Inspect the bud unions yearly 
and remove any scion roots that 
may form. If they are not re- 
moved, scion roots are likely to 
dominate the rootstock, and the 
vine again will become susceptible 
to damage from the grape phyllox- 
era and the root knot nematode. 
Slightly revised September 1969 
Washington, D.C. 
Issued July 1962 
U.S. GOVERNMENT PRINTING OFFICE : 1969—O-355-394 
