Page 47 - Grapevine May-June 2019
P. 47

Around The Vineyard



                         Managing the Scott Henry                   Place the extra moveable foliage wire on top of the
                                                                    shoots from the bottom cane, and they will lean
                 The Scott Henry is a cane pruned system, using     out into the row, assisted by any wind. Shoots from
               two or four canes. The Smart Dyson is spur pruned,   the top cane will form the top canopy, and they are
               with spurs pointing upwards and downwards from       trained vertically upwards between foliage wires, as
               a mid-height cordon. We will discuss the manage-     is normal for VSP.
               ment of the Scott Henry only here.
                                                                      Then, at around early fruit set, move the bottom
                 Normally, for vigorous vines we prune to four      moveable foliage wire downwards and attach it to
               canes, two on a lower fruiting wire at around 40”,   the post, say 2 ½ ft below the fruiting wire. This will
               two on an upper fruiting wire at about 46”, on the   form the second, downward pointing canopy.
               opposite side of the post and on the upwind side.    Remember that you will need to apply any herbi-
               An extra wire is used for the SH, a moveable foli-   cide before flowering.
               age wire to help downwards shoot positioning.  At
               winter pruning, this rests about opposite the top      Normally shoot positioning the Vertical Shoot
               fruiting wire, and at early flowering it is placed on   Positioned canopy (VSP) takes 3-4 labor passes
               top of the shoots from the bottom canes after they   through the vineyard with well managed teams,
               are separated from those growing upwards; subse-     and requires 12 to 16 hrs per acre. This figure
               quently, after fruit set it is moved downwards and   might be increased by say 25%  maximum when
               attached, so positioning the shoots downwards.       using Scott Henry.
               When pruning remember not to wrap the bottom
               canes too tightly, one or two wraps is best, and                Responses to Scott Henry
               secure the ends of the canes.                                     Training with Vinifera

                 At the beginning of flowering, and before the ten-    The conversion cost is not high, to add only one
               drils start to attach, slide your arm into the canopy   wire per row to train shoots downwards, and a
               to separate shoots from the top and bottom canes.   very modest increase in labor input, for shoot


































                Diagram of Scott Henry training, showing fruiting and foliage wires. Left, appearance after winter pruning
                to four canes; right, appearance before pruning, showing cane positions. Note the position of moveable
                foliage wire, in the upper position on left, and after turning downwards, on right.
               877-892-5332                       The Grapevine • May - June 2019                              Page 45





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