The newspaper., 1907-07-19
CONTINUED from first page.l

HToW tu-luSG ruCll IOod
in fact, as the aphis requires. This
has undoubtedly led to increased
production of these insects, and
hence the abundance of the pest tiis
wear. For this reason | am con-
vinced that early spring treatment
with lime and sulphur wash should
be continued. However, | believe
that the preparation OF this wash
should be arranged for locally. sew
eral growers combining to establish
the necessary apparatus for its prep
aration. A second hand boiler
(Which can be bought for it's cost in
old from, shed to put it in, and a
platform tank are the essential parts
of such an equipment. The saving
in the preparation OF the wash. ma
terials alone considered. amounts to
about fifty per cent. of the cost OF
diluted Rex" while its effective ness
is remarkably increased 10y being ap-
piled while warm and fresh. Expert
ments have also shown that the
steamed preparation is more effective
than the boiled one.
Results obtained with summer
sprays In many cases have seemed
contradictory. In view OF this 1t
was believed that the Delta County
Fruit Investigation could do no bet
ter than to pursue a series of syste-
matte experiments right along this
line. While this series is by no means
completed, and is still I'm progress,
we feel that the seriousness OF the in
festation over the whole county de-
mands that we publish in every
county paper the results so far OBJ
tained.
Right at the start, we desire to
express our great obligations to Mr..
Eugene F. Hubbard, of Cory, who
placed at our command not only his
orchard and equipment, but his re-
sources as well so that the investi-
cation has been at practically no ex-
pense in all the series Of experiments.
Thanks are also due to MIR. John
Travis, of Delta. for crude oil used
In one experiment.
A portion OF the Hubbard orchard.
containing about l 900 trees, planted
I'm 1899. has been used in the eXper-
iments. The varieties are chiefly
Rome Beauty, Gano. Jonathan,
winesap, Grimes Golden, Willow
Twig, and n few of Smith Cider and
other varieties. The sprays were
applied with II. p. Fairbanks
Morse power sprayer. The nozzles
used were Bean Bordeaux. except in
one case. where Friend was used. A
pressure of from 175 to 200 pounds
was generally maintained. One man
drove and tended the engine and
two Others sprayed a row apiece.
EXPERIMENT I.-Kerosene Emul-
sion. Four rows were sprayed with an
emulsion prepared as follows:
Kerosene. gallons
Tak-A-Nap Soap --.--25 pounds
Water er......-.---..-....-. $50 gallons
Ut should be remarked that
the water here was quite soft
and comparatively free from
salts.)
The soap and kerosene were mixed
together without heating. A little
water was then added to test its emul-
styling power, and this being satisfac-
tory it was added to the full amount of
water in the tank. The agitator was
then set to work and fine emulsion
secured. This was the experiment in
which the Friend nozzel was used at
first, but it was found impossible to
keep the high pressure. the gauge
reading from 140 to 30 pounds. The
Friend nozzle is bea ully adapted to
spraying for the C Hg Moth because
of the great bread the spray and
its fineness, but it . praetically value
less for use against be aphis where
fineness of spray must be sacrificed to
force. Moreover with an emulsion it
clogs badly. After the first two rows
it was discarded and Bean Bordeaux
used altogether in subsequent work.
The results of this experiment were
very unsatisfactory as a whole. A
few insects were killed, but the major
ity were not injured at all. Further,
the foliage was somewhat burned on
the small Jonathan resets and on all