A dictionary of modern gardening - University Library

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AMB 30 AM E
pound. Where dry lime purifiers are
employed at gas works, it may be obtained
in the state of a dry powder, but
wlierc a liquid mixture of lime and water
is employed, the bydro-sulphuret
can only be had in the form of a thick
cream. Of the dry hydro-sulphuret I
would recommend eight bushels per
acre to be spread regularly by hand upon
the surface after the turnip seed is
sown, and before harrowing. If the
)i(liiid is employed, I would recommend
thirty gallons of it to be mixed with a
sufficient quantity of earth or ashes, to
enable it to be spread over an acre in
a similar manner. For cabbages, twelve
bushels, or forty-five gallons per acre,
would not probably be too much, spread
upon the surface and turned in with the
spade or last ploughing. To effect the
banishment of the turnip-flea I should
like a trial to be made of six or eight
bushels of the dry, or from twenty-two
to twenty-eight gallons of the liquid,
liydro-sulphuret being spread over the
Burlace immediately after the sowing,
harrowing, and rolling are finished.
Although I specify these quantities as
those I calculate most correct, yet in
all experiments it is best to try various
proportions. Three or four bushels
may be found sufficient, perhaps twelve,
or even twenty, may not be too much.
In cabbages the ambury may usually be
avoided by frequent transplanlings, for
this enables the workman to remove
the excrescences upon tlieir first appear-
ance, and renders the plants altogether
more robust and ligneous ;
the plant in
its tender sappy stage of growth being
most open to the insect's attacks. The
warts or galls that so frequently may be
noticed on the bulbs of turnips, must
not be mistaken for the ambury in a
small gardens, wliere the same crop is
too IVequently repeated : also in market
gardens. In the latter case it may be
attributable to the putrid manure used
to produce excessive luxuriance. Lime,
change of manure, rotation of crops, but
above all deep tillage, bringing the
subsoil to the surface, are the remedies
adopted.
AMELANCHIER. Four species.
Hardy deciduous shrubs. Layers.
Common uiMi:f soil.
AMELLUrt. Three species. A.
Lyrhnitis, green-li,ouse evergreen ;
others hardy and deciduous. Cuttings.
Loam.
AMERICAN ALOE. Agave Americana.
AMERICAN COWSLIP. Dodccatheon.
AMERICAN BLIGHT, {Aphis lanigera—Eriosoma
lanigera.) The cottony
matter in tlie cracks and excrescences
of apple tree branches in the
spring envelops an insect known by
the above names, and which, when
crushed, exudes a reddish fluid. These
insects are injurious by piercing the sap
vessels with their probosces, sucking
the juice of the tree, and causing
wounds which ulcerate and finally destroy
the branch attacked by corroding
through all the sap vessels. The cottony
matter is abundant, and, wafted to
other trees, probably conveys to them
infection, by bearing with it the eggs
or embryo insect. But this is not the
exclusive mode of difl'using the disease,
for although the females are usually
wingless, yet, like many other insects,
some are probably produced with winga
at the season propitious to colonization.
The males are uniformly winged.
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mitigated form. If these are opened In the winter these insects retire under
they will usually be found to contain a ground, and prey upon the roots of the
yellowish maggot, the larva probably apple tree. A tree thus ravaged at all
of some species of cynips. This insect seasons will soon be killed, if prompt
deposits its eggs in the turnip when of! and vigorous remedies are not adopted,
larger growth than that at which it is The affected roots may be bared and
attacked by the weevil, and the vegeta- left exposed for a few days to the cold,
ble consequently suffers less from the and the earth, before being returned,
injury ; but from some slight observa- be saturated with amnioniacal
tions, I am inclined to conclude, that from the gas works. In early
liquor
March
the turnips thus infested suffer most the branches should be scraped, and
from the frosts of winter, and are the scrubbed with the same ammoniacal
earliest in decay. Johnson''s Principles liquid, or a strong brine of common salt;
of Gardening.
The Ambury occasionally exhibits itbut
whatever liquid is employed, the
scraping and hard bristles of the brush
self around Philadelphia, principally in should ; penetrate every crack in the