Lyon County times. [volume] (Silver City, Nev.) 1874-1907, 1893-07-29
SPRAYING MACHINERY.
Newspaper, bulletin No. ~


The following is written in res
ponse to numerous inquiries regard
ing the proper spraying machinery
suited to general work in the appli-
cation of insecticides and fungicfdes.
The recently increasing demand
throughout the country for spraying
apparatus has led to the production
of many forms of force pumps and
nozzles. Most of these are manufac-
tured in the east, but recently the
demand in California for such appa-
ratus has made imperative the es-
Enlistment on this coast of manu-
factories and agencies for spraying
machinery of the most approved
patterns.
The suitability of the force pump
employed is dependent upon the ma
ture of the work to be accomplished.
The large orchards of California de-
mand the use of pumps of large ca
pacity. These permit the use of two
or more spray discharges and conse-
quently require an extreme amount
of force in their management. There
is however little if any call as yet in
Nevada for machinery permitting
such wholesale work.
Another extreme is represented in
the small pump manipulated by one
hand while the other directs the noz-
zle. Such are very satisfactory
when employed upon small plants
and shrubs of limited numbers, but
for orchard use these pumps are ut
terly useless. Not only is the re-
CURED labor unduly increased, but
worst of all the spray, if it reaches
the upper branches at all, has little
or no force as it docs so.
For general farm use the most
available force pumps doubtless one
that will keep two discharge pipes of
"a inch hose constantly filled with
considerable pressure. To run such
a pump the labor of one man will be
required. But one of the discharges
need be used in spraying proper, the
other with partially obstructed out
let may be directed into the supply
receptacle as an agitator, This Is
necessary with such substances as
remain in mechanical mixture only,
the active portion of which will set
tie if undisturbed. When using
other liquids requiring no agitation
this discharge may be cut of, thus
giving increased force to the nozzle
discharge.
The most important virtue of the
pump hes in the force that can be inn
parted to its discharge. Herein lies
a great part of the secret of success
full spraying. To aid this, H-inch
hose is greatly to be preferred over
* inch hose which is also much heav-
Ter ond more cumbersome. For or
ohard work twenty-five or thirty
feet of hose is none too much. To
no part of the spraying outfit is
greater Importance due than to the
nozzle and its use. Upon these, aided
by the proper force from the pump,
is dependent the thoroughness with
which the work of spraying can be
accomplished.
In general the best nozzle Is that
which resolves the stream into fine
mist which still retains a considera-
BILE part of the force impaired by the
pump,
1t will be seen that such spray
will extend at most but few feet
beyond the nozzle. Experience has
demonstrated that to obtain best re-
suits, the nozzle must be held close
to the point of attack. To meet this,
the modern spraying outfit includes
an extension" which consists of a
light gas-pipe six or eight feet long
encased in bamboo. This connecting
the hose and nozzle permits the hat
ter to be brought close to the upper
most branches where the work may
be as thoroughly done as below. For
temporary use, the "extention" may
be replaced by an ordinary bamboo
pole to one extremity of which the
hose bearing the nozzle may he at
tached, the operator then holding the
hose with the other extremity, of the
bamboo.
These leading features of the spray
ing outfit are generally admitted tc
be essential and the writer cannot dc
other than advise their observance
by those intending the purchase OF
spraying apparatus.
A more complete description of the
various nozzles in use is reserved
for forthcoming article:
F. H. HUFFMAN.
Agricultural Experiment Station
RxSo, Nevada, July 20, 1893.