Robert Smith.

The Friend : a religious and literary journal (Volume 16) online

. (page 126 of 154)
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the peach. It affects the whole tree, and the
seedlings reared from it are also more or less
diseased in the same manner.

" II. The yellows is a contagious disease,
spreading from tree to tree gradually, and it
may be propagated by grafting or budding
from the infected specimens.

" III. This malady may be infallibly known
by the following characteristics : a decidedly
yelloicish colour in the whole of the leaves of
the tree ; short and slender branches growing
here and there, clothed with small, half-starv-
ed, narrow leaves, one-fourth, or one-half the
usual size ; and mottled, small fruit of inferior
quality, ripening before the proper season.

" IV. A single tree with this disease will,
by its contagious influence, gradually destroy
a whole orchard of healthy trees. No pruning
or mode of treatment, hitherto discovered, will
restore to a healthy slate a tree thoroughly
diseased with the yellows.

" V. It is absolutely necessary to destroy
all trees having the yellows, in order to insure
a sound condition in a young plantation yet
healthy. In small gardens, where there are
diseased trees contiguous, the neighbours must
be prevailed upon to enter into the plan; in
farms, and larger places, it will generally be
sufficient to destroy all victims of the yellows
on the premises, as the disease spreads slowly.
In trees received from nurseries, there will fre-
quently be found an infected subject, and it
should be at once rooted up, and its place sup-
plied by a healthy tree. It is much better to
destroy a single tree, though young, at once,
than by allowing it to stand, in the vain hope
of its recovery, to spread disease among all ia
ts neighbourhood.

" The second enemy lo this tree is the peach
worm, or borer. This insect {JEgeria exiti-
osa) deposits its eggs in the soft part of the
runk, just at the surface of the ground. These,
on becoming borers or grubs, perforate and
consume the bark, and in lime girdle and de-
stroy the tree. To maintain an orchard in good
health, so far as regards this insect, it is only
necessary, every spring, to remove the earth
for three or four inches at the base of the tree,
and to cut out and destroy with a knife every
one of the borers. Their presence is generally
indicated by guin just below the surface of the
ground, and a little practice will enable a man
to go over an orchard of an acre in a day.

" The productiveness and longevity of the
peach tree, will be greatly promoted by short-



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Online LibraryRobert SmithThe Friend : a religious and literary journal (Volume 16) → online text (page 126 of 154)