The gazette-times. [volume] (Heppner, Or.) 1912-1925, 1915-04-15

atomic sulphur $50 as soon as the mil
dew begins to appear.
Peach Mildew-Atomic sulphur lilo
as soon as the mildew begins to appear.
Apple Tingis and Apple Leaf Hopper
When insects become abundant, spray
with black leaf 40, $1,000 to which has
been added l pound of whale oil soap to
each 100 gallons of spray.
Bud Weevils-If insects become album
dant, band trees with tanglefoot, since
they cannot fly.
Bordeaux Mixture.
Bordeaux mixture is made of copper
sulphate (bluestone) and stone lime
(quick lime). Under no circumstances
should lime that is either partly or wholly
air slaked be used. Bordeaux mixture
is employed in various strengths, the
ALSO and the $3.50 being the most
common The first figure indicates the
number of pounds of copper sulphate, the
second indicates the number of pounds of
lime and the third the number of gallons
of water used in the mixture. A 4-4-50
solution then would contain four pounds
of copper s~ulphate and four pounds Of
lime in every so gallons Of water.
One of the two methods may be used
in making Bordeaux. Either it may be
made directly or stock solutions made and
these stock solutions used whenever the
fungicide is needed. In making the spray
directly take the number OF pounds of
copper sulphate indicated by the first
number OF the formulation instance, for
a 4-4-50 solution use four pounds, or the
proportionate amount necessary to make
up the desired quantity.
Put 1t in a coarse gunny sack, and
hang it in a barrel containing 25 gallons
of water so that the copper sulphate hangs
in the upper part of the water. The cop
per sulphate will dissolve much more
readily in this than if placed in
the bottom of the barrel. In another bar
rel slake four pounds of lime, using
enough water to Stake 1t slowly. When
the lime is slaked add enough water to
make Is gallons.
Pour the copper sulphate solution into
the lime water while stirring. 1t is de-
sirable to have a slight excess of lime,
since 1t prevents any injurious action of
the copper salts. If there is an excess of
copper, foliage injury is liable to result.
However, If the lime used is fresh and
pure it will be fond that the amount in
Dictated in the formula is sufficient.
In making stock solutions, dissolve cop
per sulphate in water at the rate of one
pound to one gallon of water. Stake the
lime slowly in another receptacle, and
when slaked add water until a thick lime
milk containing one pound of lime to one
gallon of water is formed. This is done
by using ~50-gallon barrels. Fifty pounds
of copper sulphate is dissolved In so gal
Ions of water, and SO pounds of lime Is
slaked in the other and then water added
until the whole is so gallons. Care must
be exercised to avoid burning the lime
while shaking. When using the stock solu-
ton in making up the spray mixture, one
gallon of copper sulphate solution repre-
sents one pound of copper sulphate and
one gallon of lime water represents one
pound of lime. The proper amount of
stock solutions should be diluted in sep
arate vessels before mixing, and each
should be poured together In equal
amounts when mixed. IL a $3.50 BOr-
deaux mixture is desired, five gallons, or
a proportionate amount of copper sui
phate solution and five gallons of lime
water are put in separate barrels and 20
gallons of water added to each. When
these are mixed there will be five pounds
each of copper sulphate and lime in each
so gallons Of spray. Strain when pour
ing into the spray tank and agitate thor
oughly while spraying.
Lime Sulphur.
Directions for the preparation and dilu-
ton of home boiled and commercial lime
sulphur will be found in the April, 1914,
Monthly Bulletin. Too much emphasis
cannot be placed on the necessity of using
a hydrometer in diluting any lime sui
phur.
The manufacturer may state the
strength of any commercial lime sulphur,
but this only applies at the time 1t left
the factory and too concentrated a spray
will mean a financial loss by using more
than necessary. and may mean foliage in
jury, while a too weak solution means
loss Of efficiency and failure to control