Los Angeles daily herald., 1889-05-07
THE VINE DISEASE.
successful Experiment. at P0mOns
officially Reported.

officially Reported.
Hon. J. De Barth Shorb, State Eiticut-
cultural Commissioner:
SIR: Since discovering that the vines
were affected by disease, have been ex-
perimenting, in order to discover, If pos
sible, a remedy or preventive, and the
result of these experiments 1 desire to
communicate to you, in order that the
information may be communicated to
other vineyardists through you, should
you deem the same worthy of publishing
with that end in view.
In the month Of June, 1888, discov-
cred that soma of the tips of the shoots
of vines began to wither and dry up, and
l then applied mixture composed of two
pounds OF sulphate of copper, three
pounds of lime, in fifty gallons of water.
This application sprinkled on the with
cred tips of the vines with sprayer (hand
pump was followed Immediately by Q
new growth, convincing me that the ap-
plication was beneficial to the vine. In
two weeks recurrence of the withered
tips was treated again with the same
mixture, and was again followed by the
same result.
Having thus satisfied myself that the
application of sulphate OF copper, and
lime was followed by such favorable re-
suits as described above, when applied
in such weak solution, 1 concluded to
strengthen the mixture, which / did,
during the spring of the present year,
and applied solution composed of II
pounds of sulphate of copper, 30
pounds of lime and 45 gallons of water
upon three Mission vines on the 14th day
OF April. The vines have all grown we'll
and show very little signs of disease at
present; but the solution as described, I
have concluded to be too strong, for
while there has been no serious damage
to the vines, have nevertheless found
some OF the leaves warped and per-
forated, evidently by the chemicals. l
then diluted the mixture to three-fourths
OF it's original strength, and after treating
three more Mission vines, with the same
results, again reduced the strength of
the mixture to one-half of it's original
strength, and after applying the same to
three Mission vines, similarly as in the
two former applications, obtained like
results.
These applications have all proved
beneficial to the vines, and while some of
the leaves have been in each case more or
less perforated by the medicine, can
say without hesitation, that in my
opinion, the true remedy or preventive
for the vine disease whatever it may he.
called, will be found 10 be proper 10
luton of sulphate of copper and lime,
and I ana Of the opinion also, that 10
pounds of copper and 10 pounds of lime
to so gallons of water will be found to be
perfectly harmless, and about the pro-
per degree of strength.
My experience and observation also
lead me to say further that irrigation
has. in some cases, been very detrimen-
tai to vines affected by this disease.
This is very clearly demonstrated by q
vineyard adjoining me on the north.
Water, intended for an orchard, over
flowed a part of the vineyard, with the
result of killing the vines SO flooded, and
also another part of the same vineyard
was almost entirely killed by an over
flow from some alfalfa land.
Very respectfully yours, etc.,
g. MIRANpE.
Pomona, CAL, April 20, 1889.