The Hood River glacier. (Hood River, Or.) 1889-1933, 1906-04-26
Times Wormy Worms Per cent
Gnrauad Anrlaa Killed Killa1

From these results we see that the
third early spray was Of no value in
the second brood; that the second
one alone killed nearly half of the
worms that the first one alone killed
one-third more than the second alone
and that the first two together killed
over 3-4 Of the worms.
1t Is hard to believe that a spray
put on in May could kill over half of
the worms entering the apples in Au-
gust and September, or that two ap-
piled before June 10th could kill over
3.4 those same worms. These results
we're, however, so uniform on the ell
tire GA trees that there could be no
question about their accuracy, es-
pecially as they are supported by the
results of last season
When we investigate further, how
ever, and see how this was accom-
plished, the explanation is easy.
The poison put in the calyx cups
in early June and which still remains
there as you can see by looking at the
specimen under the microscope, is re-
sponsible for the greater part of these
:. results.
Taking the actual figures and there
was an average of l01 calyx wormy ap-
pies on the unsprayed trees, Al on
those with the second spray only, 8 on
those with the first spray only, and
three on those with the first two to-
gether.
From these figures we find that the
poison. you see there now killed SO of
the l01 worms that entered the calyX
cups for August LIST on until picking
time. Besides killing 81 per cent of
all the worms In the cslyx the early
sprays killed 10 out of lis that went
ia on the sides, or 81 per cent OF the
side wormy.
These statements have all been given
in actual number Ct worms fonnd
which is the only true way to compare
results. Translatlng them into per
cent of wormy apples, so as to com
pare with the results of other me-
s thods, and we find that the two early
sprays applied the second year gave
an average of 98 per cent sound.
:. The essential feature of the method
,used was that the small drops OF poi
soned liauid we're forced between the
stamens and down into the very bot
: tom of the calyx cups. 10 do this 1t
Ia necessary to have pressure OF from
az to 100 pounds and that this spra5
be thrown In the form of fine drops
that do not break into mist within
Ave or six feet of the nozzle. Then
BY using platform so that the oper-
ator is nearly on a level with the top
Of the tree, an extension pole with a
nozzle set at a 80 degree angle, each
mart of the tree can be sprayed go
that the liquid will be forced straigtt
into the cups. =,
In conclusion | wish to state that
| am not offering any method OF
sprayipg for the humid sections be-
cause | know nothing about them or
their conditions; and | am not advo-
eating the use of Paris Green as bet
ter than any other poison-it is not
Tor me. however, it is better because
T can see inst where the poison is
and what it does, and that 1t will do
the work the results will show, Neither
do wish to Pdvocate two spraying OF
anv other number What ] do wish
to aydocate is that the early sprays
be applied according to the method
that has given the above results and,
n this is done, / do believe that We
viii he able 60 get on with less mum
her of late sprays, and, under favor
able conditions, without any.
This paper was accompanied by
charts showing many excellent points