The rubber also seems to encourage the formation of that tissue
which unites the stock and scion. In addition to tape, melted wax should
be brushed into those crevices and cracks which always occur in making a
graft.
It is usually advisable, although not necessary, to shade new grafts. To
do this, cover them with light-colored or white paper sacks. Never use
glassine alone for it causes the grafts to overheat and so destroys
them. Whatever tying material is used, either to fasten on these bags or
to support the grafts, it should be inspected at intervals during the
summer, as it may constrict the graft or stock and injure or cut off the
cambium.
After a scion begins to grow, it must be firmly braced against the force
of the wind, for a heavy gale can rip out grafts made years before.
Laths make good braces for growing shoots. They may be attached to the
main branch by stout waterproof twine such as binder twine, and the
growing graft tied with soft muslin strips to the lath. As the graft
grows more muslin strips should be used to keep the excessive growth
anchored to the lath. Grafts will often make three or more feet in
growth in one season.
It is important to remember that sprouts or buds which start from the
stock must be rubbed off.
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