The Twin Falls times. [volume] (Twin Falls, Idaho) 1905-1916, 1916-02-08
TIME CONSERVATION
CLEARLY EXPLAINED
Paper by E. F. Stevens Tells How
Spraying is Done in the Orchard of
Company He heads.


In order to save time and make pro-
gress in the work of spraying its three
hundred acres of commercial orchard,
at Nampa, Idaho, the Stephens Orch
ard company erected an elevated tank,
which is kept filled from a nearby
we'll by a gasoline engine This ele-
waited tank discharges through a four
inch pipe, quickly filling the service
tanks used in field work.
Each of the two spraying outfits has
a three sad one-half horse power en-
CINE developing two hundred pounds
pressure. and each is equipped with
two leads of hose and four Bordeaux
nOZzles Zach tank in orchard ser
vice is sprayed out in about twenty
three to twenty-five minutes. That the
three men with each power sprayer
may not be delayed in their work each
outfit is followed by a helper tank
wagon. filled either from the elevated
tank or from a nearby irrigation ditch.
To enable the helper tank to dis
charge its contents quickly into the
tank of the power outfit, il is elevated
about thirty inches above the holsters
Of the service wagon, enabling it to
empty itself IT, two and One-half to
thrCn minutes through a four-inch
pipe The helper tank drives along
side the power outfit, swings it's up
right four-inch pipe over sideways,
and usually discharges its load into
the tank Of tho power outfit while the
horsenen are spraying the last four
trees, causing but little delay to the
work.
An equipment of this character re-
quires a fOur-inch outlet pipe bolted
! inn II M Of
helper tank This pipe has an elbow
screwed in, and on top of the elbow
four-inch tin pipe in two sections
gives a length of eight feet, reaching
from the helper wagon to the power
outfit and discharges its load as
above noted, with very brief delay
Equipped in this manner we find that
nine men and eight horses can apply
four tanksful per hour or 1000 to
5000 gallons per day.
The arsenate of lead of the highest
Obtainable quality, costs at Nampa
, $3.50 per hundred pounds. Using eight
pounds per tank of 200 gallons the
solution in each thankful costs COS
cents The cost Of application for
each thankful is from SIS to rs cents.
The amount of orchard covered each
day depends upon the age and size OF
{ the trees.
The bulk of our orchards are in
five-year form! about sixty acres in
seven-year form, and we have sprayed
our neighbors' trees in twelve-yeaT
! form. In making the calyx spray we
use high power and the Bordeaux noz-
, zle, in the hope of driving the poison
! into the calyx of the apple.
The next spray is the foliage spray
and is applied while the eggs are be-
' ing deposited by the first brood Of
! coddling moth, from the 18th to the
> 25th of May. depending upon the
warmth of the season.
I 1t is not usual for the moths to de
! post their eggs until the night tenn
perature reaches sixty degrees. This
second, or leaf spray, is applied in thu
form of mist using a different type
. of nozzle.
The object of this particular spray il
-, to coat the foliage and the outside o
, the young fruit with poison. The egg
:, of the coddling moth are usually de
u posted on the foliage of trees bearing
= fruit. 1t is expected that the larva
which matches in eight or ten days af
I ter the egg is deposited, will eat lit
, tie on its way to the apple, and thu
y he destroyed.
u For the leaf spray we plan to in
. crease the strength of the solution t.
. ten pounds Of arsenate of lead to wv,
= two hundred gallons, making the ar
:. senate of lead for each two-hundred
, gallon thankful cost 76 cents.
. The third spray is applied when tn
l. eggs of the second brood are bein
n deposited, using ten pounds of tn
Il best arsenate Of lead to the 200-gallon
= thankful.