Atlanta semi-weekly journal. (Atlanta, Ga.) 1898-1920, 1919-06-10
Spraying Plants for Their Protection
Against Disease

our SdIuSIlS tliltl OlGlitiI Us et9 q c
suit of the development of various
blights and willis. Most of these can
be controlled quite successfully
. through the use of certain Well-de-
fined sprays known as 1unglcldeS.
This is a big word and may be diff
ficult to assimilate and understand
1T first, but after all it is about the
only term which could be found to
! express the true nature and pur-
pose of the solutions it is intended
10 describe These solutions are of
/ several kinds and are made up ac-
cording to certain definite formu-
las. In their preparation the ut
most skill must be exercised. Do
not dcViate in the slightest from the
+ directions given. Many people do
this and then do not secure salts
tory results from the use Of the ap-
plicationS recommended below. AS a
result they are disposed to blame
the fungicide and pronounce it in
effective. AS matter of fact, they
have not given it chance to prove
its worth. The simplest deviation
will nullify the benefits accruing
from fungicIdes. Bear this in mind
and be certain that they will ac-
compllSh what they are recommended
to do if the operator has not made
some mistake in their preparation.
Among the fungicides to which at
tention is directed at this time are
Bordeaux mixture, ammoniacal cop
per carbonate, concentrated lime-Sul-
phur, and self-poiled li1ne-sulphur.
The successful orchardiSt and gar
dener must depend on these solu-
tons to protect his trees and plants
/ from injury by various more or less
Well-knoWn diseases. 1t is impor-
tant, therefore. that everyone inter-
eSted in propositions of this char
acter should have these formulas
available in convenient form. 1t is
difficult to remember them exactly
and the details which should be fol-
flowed in their preparation. To this
end we strongly advise every reader
! to keep a Scrap-book in which arti-
cles giving data of this kind can be
| pasted and SO kept at hand for ready
reference as occasion arises.
Bordeaux MISUNDERSTANDING (5-5-
500. Bordeaux is made in the fol-
lowing proportions:
Copper sulphate (blue vitrioD. lbs.
Quicklime (stone lime) ...... lbs.
Other farmulae are made by " vary GSt:
ing the copper Sulphate and lime to
suit. In every case only unslaked
lime should be used-air- slaked lime
cannot take the place of quicklime.
Bordeaux is made in the follow
ing manner:
hot water in one barrel. Bring the
solution UP to twenty-five gallons.
Stake the quicklime with "a small
amount of water and bring up to
| twenty-five gallons. Pour equal
amounts from each barreli into a
! third barrel, preferably through a
strainer.
AmmonicaI copper carbonate is
! Standard (3-8-50) ammoniacal car
Donate is made in the following pro-
! portion:
! 4
I Copper carbonate ...... 8 ozs.
w dlef 49,. .6O gal.
| The above formula may be varied to
suit conditions.
Ammonical coppore carbonate is
made in the following manner:
Dilute the ammonia with an equal
amount OF water. Dissolve the
copper carbonate in the solution.
Add only enough ammonia to dis
solve the precipitate, but not in ex-
cess. Dilute the solutions to fifty
| gallons.
Concentrated L mes Sulphur
Homemade concentrated lime-sul-
| phur is made in the following pro-
| portions:
Flowers of sulphur. ...... 80 lbs.
QulchllIne '............. 40 lbs.
wafer -. t..'....... So gal.
concentrated lime-sulphur is made
the following manner:
Stake forty pounds of quicklime
(not air slaked). Mix eighty pounds
of flowers of sulphur with a small
amount of water. Add sulphur to
| slaked lime and stir well. Bring
mixture up to fifty gallons. Boil for
one hour, or until sulphur is dis
/ solved. Replace water lost by evap-
! grafton.
For dormant (winter) spray dilute
one gallon to seven gallons water.
For summer spray, dilute one gal
! lon to forty gallons water.
| Self-Boiled e-Sulphur-Stand-
ard self-boiled lime-sulphur is made
in the following proportion:
Flowers of sulphur. " 10 lbs.
| Water so gals
Self-boiled lime-sulphur is made in
the following manner:
Place. quicklime (not air slacked)
in bottom of barrel. Start shaking
with hot water. Mix sulphur with
hot water and add to the shaking
lime. Stir constantly. Add sufficient
water to keep sulphur from burn
! ing Indicated by brown streaks)
but not enough to interfere with
shaking. Boil for five or ten min
| utes. Dilute to fifty gallons. Strain
into tank, working residue of sui
phur through. Use special agitator.
Bitter Rot of Apple-Symptons
Red-broWn spots appear on fruit.
usually near time of ripening. Spots
rapidly enlarge, show concentric
| dlscoloration, become sunken and
! soft. Tissue adjacent of spots often
| bitter to taste. Cankers develop on
| branches, often about base of dead
! tWlg. Show concentric rings of black
| points. Disease carried over in cank-
! erS.
! .Control-Removal and destruction
! OF cankers during winter Paint sur
| lace with coal tar. Spray with stand
/ ard Bordeaux (4-4-5O) as follows
First application just before buds
/ open in spring; second application
about May (June ! in north Geor-
! %la). Succeeding applications depend
upon weather conditions. Some varie-
! t!c3 quite resistant: Winesap, Crimes
York Imperial.
of blossoms. Velvety, olive-greer
spots on fruit and leaves. Spots en-
large and turn brown. Formation of
cracks on affected fruit, which is
often deformed and falls premature
~. Lowers market grade and value
! ceptible to rots.
Control--Destruction of diseased
leaves and fruit Spray with lime
sulphur (summer strength); first APP
plication just before blossoms open
second application just after bios.
SONS fall Cbegin when half Off
third application ten days later;
! fourth application when fruit te
J three~QuartefS grown. (Arsenate OF
/ lead -(poWderedD at rate of two
pounds per 100 gallons spray mix
.utG. makes spray more effective)
busting also recommended. No 'varie-
y resistant. Severity depends upon
leather conditions.
Black Rot of Grape--Synaptoms
ark brown or black spots on fruits
pots rapidly enlarge and involve ell
ire fruit, changing it to black. dry,
wrlnkley mummy. Tan spots on
/ ieHVcs, containing numerous black
I points in Concentric lines. Spreads
.1pldly during warm. moist weather
Carried over on mummified fruits
> md diseased litter.
! Control-Prune out and destroy
1s1-