The farmer and mechanic. [volume] (Raleigh, N.C.) 18??-19??, 1910-05-17
BORDEAUX.

diseases. It Is prepared pS SoiiIp
ing solutions Of copper sulfa'e ca
limestone and lime. The solution
,aost satisfactory for use ia the apple
orchard consists of:
Copper s~ulfate, 3 las.
Stone lime. ! lbA
water, so eallo|&
This is known -~sne $3.50 for
muIa. In q 3-4-5e formula, 8 pounds
of copper sulfate and 4 pounds OF
lime are used to each 80 gallons OF
water.
The COPPER sulfate can be readily
dissolved in hot water. If several
hours are to intervene before 1t Is
needed for use. 1t is conveniently
dissolved by being placed in q sack
and suspended in cold water IL a
barrel or other wooden vessel. AS
: matter OF convenience the INT
Of gallons Of water used should pc
the same as the Number Of POUNDS OF
topper sulfate TO be dissolved.
The lime should be slowly Stacked
IN another vessel. Hot water insures
q more complete Stacking, but 1t is
not essential. For the sake of con
venience the lime milk may be dill
uted SO that il makes as many gal-
Ionk Of solution as there were pounds
Of lime. A gallon Of either solution
should now contain q pound or
substance dissolved. These strong So
buttons should not be poured together,
but should serve IS stock solutions,
and II properly protected IroTn eva
porauon may be kept for several
weeks or even the entire season,
To make a barrel OF $3.50 Bor-
deaux, 3 gallons Of ha stock COP
per sulfate should be diluted TO
5 gallons and IN another vessel three
gallons OF the lime milk similarly
diluted. The two solutions may now
be poured together, stirring constant
". The resulting solution should have
d large excess of lime, but II there
is any question as TO the purity OF
the lime. or II a safeguard against
mistakes is desired, when all OF the
copper eulfate solution and about
two thirds Of the lime milk have
been combined the mixture should
be tested for excess copper by the
addition OF A few drops of potassium
f~errocyanide solution. If there Is an
excess Of copper sulfate present a
conspicuous brown precipitate will be
formed. The absence of this indicates
that the aLnOun Of lime already ad-
ded has been sufficient to combine
with all of the copper s%ulfate. The
remainder of the i'm solution should
now be added as a further safeguard.
The above directions may, Of course.
be ~variously modified to suit condi-
tons, u the copper suIfate should
always be made very dilute before
the addition of the lime.
It has been customary to advise
that Bordeaux should never b. used
after standing over night, since VheE
the ~precipitate has once thoroughly
settled it can never b. got into as
excellent 8 state Of fneness again.
LIZZIE SULEUR.
The Importance Of lime-sulfur as
an Insecticide and its growing favor
as a fungicide have caused consid-
cradle attention to be given TO it's
preparation IN recent years. The fol-
lowing is a very satisfactory formula:
50 pounds best stone lime, 100 pounds
sultur, water enough to make SO gall
Ions Of solution at nish The guam
titles may be proportionately reduced
as desired.
Place the fresh stone lime in the
kettle or other vessel to be used and
Stake slowly. Put in the ~sulfur. mix
ing it thorOly with the slaked or
shaking lime, adding enough water
TO maintain "a hin paste. Any Jumps
Of sulfur or lime should be thoroughly
broken up. When shaking and nix
AtC LIN tDIiDAtttd III SO4UlIOh Inlay
be diluted to 50 gallons, Boil for
about Il hour, with occasional stir
ring If the boiling has been suftl-
Gent, the sulfur Will have entirely
gone into solution, having combined
with the lime to form a clear reddish
yellow compound. Enough water
Mould be added to replace that lost
IN boiling, bringing the quantity of
the solution 70 so gallons again. The
solution is now ready to be diluted
Tor use. For summer application on
the apple orchard each gallon of this
l1r1e-sulfur should be diluted to 20
or IS gallons.
SELE-BofiIED IIAiE-SULPHUR,
The heat for combining the lime
and sulphur is obtained from the slak-
ing lime. The mixture should never
be made in small quantities, as under
such circumstances the loss of heat
Is too great. It MAJ be prepared as
follows:
Place 20 pounds Of good stone lime
- n ha rTpl and nO1IY 2 or A oaJIroo 90