The progressive farmer. [volume] (Winston, N.C.) 1886-1904, 1901-01-22
Horticulture.
gPRAYING TO PREVENT INSECT DAM
AGE.

Correspondence of The Progressive Farmer.
In a recent issue of The Progress
i've Farmer we considered some of
the reasons for the present wide
spread distribution of some of our
worst insect pests. In that article
we laid stress upon the necessity OF
spraying as a means of combating
our insect enemies, and we will now
consider some of the mixtures and
apparatus that are used in this work.
For such insects as the potato
beetle, blister beetle, tent caterpil-
Lar, etc., which subsist by eating the
tissue of the leaves of the plants that
they attack, we may apply substances
which cause death by being eaten.
We speak of these as stomach pOis-
ons, and of these the most widely
used is Paris green.
When used on lOw-grOwing plants
like potatoes, tomatoes, and cotton,
Paris green may be applied either in
a dry state, or in water. 1t 1T Is de-
sired to use it dry, it may be nike
with lime, or plaster of Paris at the
rate of one pound of Paris green to
100 pounds of the lime or plaster.
The ingredients must be thoroughly
mixed for the lime and plaster T
not insecticides, and only act as
'sfllers" for the Paris green, and in
order to be effective it must be so
mixed that in each handful of the
material that. is strewn upon the
plants, there will be poison thor
Oughly mixed in.
If it is desired to apply Paris green
TO plants of considerable height, as
on apple trees, for codling moth, or
tent caterpillar, it is impracticable
to apply it as a powder, and a spray
pump is the only alternative, and in
such case the material must be APP
piled in water. In making such APP
plications it ID best to use a cOmbi-
nation that will be useful against
fungous enemies as we'll as against
insects, so we make up the regular
Bordeaux mixture, and add Paris
green to that.
Bordeaux mixture is made as fol
lows: Dissolve copper sulphate,
Cblue stone) in hot water at the rate
of six pounds in 25 gallons of water.
This should be done in a wooden
bucket if possible. Now Stake some
lime, and add water to it at the rate
of 25 gallons of water to five pounds
of lime. Now pour the water with
the lime into the same vessel with
the water with the copper sulphate,
and stir the mixture. To this we
now add Paris green at the rate of
one ounce Paris green to 10 gallons
of water, having previously made it
into a thin paste with water in a
bowl OF cup, and stir the mixture
well, so that the Paris green shall be
thoroughly distributed throughout
the whole. The purpose of the lime
is not to aid in killing the insects,
but aids in holding the Paris green
in suspension in the water, and tends
to prevent any bad effect that Paris
green might have upon the foliage.
For spraying of this nature pump
in necessary, and it is far more eco
Aomical to pay a higher price for a
good pump than to pay less for n
49, = --z-o1s,I 11 A la ~ ,a,-
features is given at the end of this
article, and by writing to them, all
intending purchasers can get an idea
of the stock that they handle, or if
they prefer, the writer of this article
will be glad to correspond with them
On this point, and give them the best
advice that he can.
Certain insects, such as the cab
bage maggot, and plant lice on green
house plants may be cOmbatted by
applying tobacco dust, which ismade
by grinding stems and leaves of to-
bacco to u fine powder. For green
house insects, many florists burn tC-
bacco leaves in the tightly closed
houses, which is quite effective.
The various species of scale insects
and plant lice that affect orchard
o calls another class of insect
Oides into play such insects are com
batted by the application of sub
stances that have an irritating effect
when they come into contact with
the body of the insect. This is be-
cause they do not feed upon the
tissues of the plant, but insert a
Beware OF Ointments for Catarrh that