Weekly independent. [volume] (Elko, Nev.) 1887-1914, 1893-10-15
Results OF Spraying.
Newspaper Bulletin, 40. 1o.l

lSe"spupeT Dullclln,ANO. lD.l
In Juns OF tho present year the
chronological departri =,:: of inc E4-
pertinent Station undertook expert.
monts TO determine tho eiIiciency OF
spraying with paris green in prevent
ing the destructiveness Of tho codl!ng
moth, the parent OF tho worm SO ill.,
furious 10 the apple crop OF Nevada
Efforts in this direction have been
made in previous years, but they have
been confined TO one, or at most, u
few trees at Il place. In somo OF these
cases the result was very satisfactory,
while in others il wac but partially SO.
This variation in results has without
doubt bccn churgeable TO n lack OF
care in the application Of the poison.
The results in these cases that were
satisfactory were quite apt rot 10 be
considered us indicative OF results in
field practica, owing TO the small num-
Der OF trees treated il each case.
Thus il was To determine the cause Of
former failures aud To mako tho con-
dttions Of the experiment conform us
nearly us possible TO those of actual
field practice that tho following work
WAS performed.
y block Of ~forty-eisht trees in the
orchard Of y. Is. Williams, on aixth
street, Reno, Was selected for treat
ment, the remaining portion Of the
orchard being left untreatcd 10 serve
as II check upon tho work. 70 i'm
prove tho conditions of the experiment
in this respect tue two adjacent rows
oil the two portions Of the orchard arc
OF the same variety (the Ben Davis,
and each was we'll laden with fruit,
The POISON used was paris green in
water mixture at the strength of one
pound 10 I'D gallons Of water. Dur.
ing the process Of application much
care was taken that as complete NIX
turo as possible and thusa Uniform
strength, should he maintained. While
care in this respect permits the fruit
to receive more nearly uniform treat
ment, 1t is most important in prevent
ing the injury to foliage duo 10 too
great strength Of poison, which tends
to settle TO the bottom OF the vessel
from which il is drawn.
. The first application WAS made June
lst and ID. The ROW OF Ben Davis
trees was given II second treatment
On June 9th. The remaining trees
thus received but q single application,
thai, OF June lst and I'd. At the time
OF the first treatment tho blossoms
were falling. On tho SIC Ind applicl-
tion the average size OF the fruit was
that Of q walnut.
An examination Of tho orchard ! N
the second week in September, when
n fairly careful observation OF tho
trees was maao in passing from one to
another, resulted in there being found
loss than Il dozen examples of wormy
fruit on the trees which had received
Z" BhS'SuNhNO .icttlilltlll. i ITO TOW
twice sprayed apparently had been
much benefited by the second appli-
cation.
An examination of tho portion of
tho orchard not sprayed showed II
large percentage OF tho fruit TO 10
wormy. This was particularly
noticeable on tho row of Ben Davis
trees adjoining that OF tho same va
ricty which was sprayed. The fallen
fruit naturally showed a greater per
ccntage Injured, but tho relative pro-
portion Of such in tho two parts Of
tho orchard seemed moi, materially
different from that In tho fruit still
on the trees.
II Is 10 DO noted that tho cxamipn.
ton was not a close QUE. Creator
care IN this respect would harc TO.
led moro injured fruit from tho
trees Experimental upon. However
tho effect Of tho work vas noted very
much us IL would DO ordinarily in
picking the fruit.
Tho rcsult OF similar spraying by
Mr.. VIM. l.. Gould in bis orchard,
cast Of . Sn is very satisfactory
Hero, too, tlicro appears n noticeable
difference in favor OF tees sprayed
twice over those receiving II single
application.
IL 10 believed that ono OF tho most
important factors in the work in each
ui these cases wac tho uso Of tho Cox |
tension" pole by which tho spray uoa
rio was brought 10 close proximity To |
tho young fruit, thus permitting IL to
become thoroughly wcttcd.
Whilo exact information on tho
above results ia not available. suIli.
ci,nt can 10 determined to mako
them worry satisfactory, and the scale
upon whlch tho work was undertaken
gives II fair indication OF wlat may DO
hoped for in this method.
Il. II. llILLMAa,
Agricultural Experiment Station.
Keno, Ncy., Oct. 8, 1853.