The Salt Lake herald. [volume] (Salt Lake City [Utah]) 1870-1909, 1897-05-03

#2a
With this object in view we spray the
/ orchard as soon as the blossoms fall
with Paris green. 1t is then ready for
! the little worm as soon as the egg
and third time two or three weeks
! later.
REMEDIES.
Bordeaux mixture-This is the most
universally used and the most salts
I factory for general purposes, of all the
fungicideS so far discovered. It's action
is preventive rather than curative. 1t
should, therefore, be sprayed upon the
plants before they are attacked by
fungi. The principal objection to it is
its bright blue color, which injuries the
appearance of the fruit or plants
sprayed. Its use should, therefore, be
discontinued some time before the fruit
begins to ripen, and if it is necessary to
spray the fruit at this time use the
ammoniacal solution of copper carbon
ate described next, which, being color
less. does not have this objection.
Bordeaux mixture is prepared as fol-
lows: Dissolve six pounds of copper
sulphate or bluestone in water and
slack four pounds of lime. Dilute each
to about % gallons. and after they are
cold pour them together. A better way
is to make a stock solution of the blue
stone by dissolving quantity of it in
keg or barrel of water. Tt should be
dissolved at the rate of one pound of
bluestone TO one gallon of water so
that when wanted for use given num-
Der OF pounds may be obtained by
measuring out an equal number of gal
Ions. A quantity of lime NAV also be
kept on hand by first stacking it and
then keeping it in the putty state under
water. When it is desired to prepare
some Bordeaux mixture, pour out the
desired quantit-r of the stock solution
and dilute as before directed. Then
add lime to this solution. dilutng as
before, and since we cannot weigh the
lime in the putty state, some test must
be used to tell when we have added
enough. One of the simplest is a vel
low test-paper which is turned brown
by lime. After adding about what lime
is thought necessary, stir the mixture
thoroughly Then use the test
paper. IF 1t does not turn brown, add
a little more lime, stir we'll and then
test again and so on till the paper turns
brown. OF course we might add a suf-
fcient quantity of lime so as to
make certain of having enough and
thus obviate the necessity of
a test but the objection to this is that
clogs the spraying apparatus and for
the same reason il renders the mixture
more easily washed from the leaves.
SOLUTION OF cop
PER CARBONATE.
This is fungicide and being color
less is used on fruit when nearly ripe
instead of the Bordeaux mixture, the
blue color of which might injure the
sale of the fruit. Several formulas are
recommended. The following is as
good as any:
Copper Carbonate. ........... ounces.
Wqte- ...--..--..-.--..--... > gallons.
ANN Onia (260 BeaumeO 49,. pints
The ammonia should be diluted with
six or eight times its volume of water
and then the copper carbonate be sus-
pended in the upper part of the liquid
and allowed to stand over night. In
the morning it will usually be all dis
solved and the solution may be poured
off and diluted TO - gallons. A wooden
or earthen recepticle should be used
in dissolving the carbonate. This
fungicide has many things to re-
commend it; its lack of color cheap
ness and the fact that it is solution
and will not clog the spraying ma
chinery being among the most import
ant.
PARIS GREEN AND LONDON
PURPLE.
These are. used for the destruction of
those insects which gnaw the leaves,
or other parts, of the plants fed upon.
and arsenic is the poisonous ingredient
Of each, though it is combined differ
emily n them. Each has some advant-
11n OIL TDor
more constant in composition and con-
tains but little soluble arsenic, While
London purple is more finely divided |
and therefore better held in suspen-
sion by the water and is also cheaper /
The soluble arsenic. much more |
abundant in London purple than in
Paris green. is the cause of the in /
Jury done to the leaves of plants when |
sprayed with these substances. The |
stone fruits are particularly suscepti-
bic to this. This difficulty however, /
may be obViated by the addition of !
little milk of lime to each barrel of the |
mixture. A pound of either substance /
S used to 200 gallons of water.
In spraying with either London |
purple or Paris green it must be re-
nembered that you do not have a |
solution that is the Paris green does
lot dissolve in water as sugar does, |
Dut is merely held in suspension, just |
IS dirt is held in muddy water. and if |
he barrel containing it is allowed to
stand the Paris green will settle to the /
bottom 1t must therefore be kept |
constantly stirred. Another point in
his same connection is this: if the
spray is applied SO that it drips from
he leaves. then all the small particles
# Paris green. being heavy. will run
Town into the drops suspended from
he edge of the leaf and fall to the
ground.
For this reason when spraying with
.ither Paris green or London purple
'ou should apply only enough to
thoroughly dampen the leaves with
nut running off at all. On this account
{ is important to have a nozzle which
hrows a very fine spray. These re-
marks do not apply to spraying for
odlin moth before the apples turn
Iown. because then the blossom end
# the apple acts like a little cup and
he more thoroughly the tree is
prayed the less chance is there that
ny of the apples will not receive their
hare of the poison.
KEROSENE EMULSION.
lard soap .......-.........-.... y pound
elOSene gallons