The Idaho Republican. [volume] (Blackfoot, Idaho) 1904-1932, 1909-04-30
RESULTS OF SPRAYING.

The results following the expert
ments which the hoIticulturists of the
state agricultural college were con-
Quoting last year at Wenatchee, Yaki-
ma, Walla Walla and elsewhere in
the state, seem to show that the great
amount Of discussion which has been
had pro and con among orchardists
as to the best mixture to use in spray
ing for codling moth has really been
to little purpose, and that careful and
thorough spraying is the essence of
success in destroying this insect re-
CARELESS Of the method or solution
used.
or the results of the experiments
carried on at Wenatchee last year
the Daily World said:
In the orchard Of q. a. Lanham,
where there were 1900 boxes Of
wormy apples last year, there are this
year only about six boxes which the
codling moths have destroyed.
This is the result Of the work Of
Professors Melander and Trumble OF
the state college at Pullman, who for
the past year have been conducting a
series OF experiments in orchards near
Wenatchee. Messrs. Melander and
Trumble are now in the valley for the
purpose Of checking up the work
done during the season. On examin-
ing the apples In the Lanham orchard
yesterday they found but thirteen APP
pies out Of II 900 that had been at
tackled by the worms.
In the Lanham orchard which
was used as one of the best places
to conduct the experiments, 40 per
cent OF the apples one year ago were
wormy. The orchard during that
season had been sprayed seven times.
This year the orchard was sprayed
four times, and SO per cent of the
apples are good.
We used several kinds of spray
material said Prof. Melander; but
the results showed no difference, as
practically all Of the worms we're kill
ed by all brands. We used the Dis
parene, Eagle brand, Bean and Vree-
land, each in different strength. In
some we used twice the amount Of
poison per gallon as in the other, but
the half strength showed the same re-
suits as the double strength.
The same thing has been proven
at Walla Walla. AS an example of
the right way to spray, an orchard
which we have just finished at that
place Is also Of interest. we selected
an orchard which last year was value
less. For several years it had been
abandoned. We selected 100 trees
and left fifty trees. BY actual count
the fruit on the 100 trees was 1913
per cent good, while the unsprayed
showed only 3 per cent clean.
THE Holcomb ranch was taken as
the place upon which to make the
test OF the dust spray. The apples
in that orchard are being examined
and this method will be known. later.
The results Of the experiments
prove conclusively that the Pullman
men have saved 1900 boxes of APP
pies, valued at the least at $4,000.
A colse study of methods by the
growers will save thousands of dol
lars worth of fruit annually.
"One of the papers in Walla Walla |
estimates the value of these mems
services to that community for this
year alone at 500, 000.'
According to reports later than the
above, the results of the dust spray
were not wholly satisfactory. 1t was
equally effected with the others In
destroying the worms, but blighted
some of the fruit. Professors Me-
lander and Tumble are reported to
have reached the conclusion that the
solution of arsenate of lead is the
most satisfactory spray to use, and
their experiments show that the i'm
portant thing Is careful spraying done
at precisely the right time.
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