The Hood River glacier. (Hood River, Or.) 1889-1933, 1906-02-15

or counting the worms under the
bandS. Ii you use the brooding cage
take fruit jar, put in some eocoons,
cover the top with mosquito netting
adm place out of doors. When the
moth appears In the jar, your spray
Ing should be done IN about week,
and surely within l3 days. Let me
caution you to be sure you get early
cocoons. Ii you determine by count
ing the worms under the bands, spray
In ~ days after you observe the great
est number. The second spray for
the second brood should follow in l3
days, and Ball says in Utah the third
spray for the second brood should fol-
low in l3 days again. | am rather
OF the opinion that two sprays would
be sufficient for the second brood, for
the reason that the maximum period
OF the life of the mot. and incubation
OF the egg combined IS % days, which
exceeds the minimum period of 10
days by IL days; therefore, If we get
the first spray for the second brood
on at the proper time and follow with
another in IL days we have kept the
apples continually coated for 26 days,
which will kill maximum stragglers,
as they are but Is days behind the
first worms of the second brood. Let
us look into this by actual dates.
Full blossoming time is about May
10th. In about ~ days, just before
all the blossoms have fallen or about
May 10th, we apply the first spray.
The majority of worms enter in about
| 10 days after blossoms have fallen,
which would be about June 9TH. The
first spray for the second brood, which
by this plan would be your fourth
spray, probably would be in advance
OF so days from June 9TH, which
means with US about July 25th, fol-
lowed with another spray in 13 days,
which would go on about August 9Th
and keep the apples covered until
about August 22nd.
want to tell you about actual work
by Chris Dethman and compare it
with the above. He sprayed last year
just before ell the blossoms fell; the
second time 10 days later and the
third time two weeks after that. Then
he waited 40 days and sprayed the
fourth time and in two weeks sprayed
again, and he had fine, clean crop
of apples. Now, assuming that spray
ing just before blossoms fell with him
was the same date as we assume in
our calculations- May 20th. His sec
ond spray would be June 1st his third
June l4th, and 40 days later for the
fourth spray would be July 24th, and
his 5th spray August Sth. You see
they both agree.
| Now il there is third brood the
time to spray for it would be deter
mined by jars or bands, or calculat-
ing approximately by dates, would be
about 80 days from the first spraying
for the second brood, which we put
about July 25th; this would mean
about September 10th to 18th, which
would be your 9th spraying. | am in
clined to believe it advisable, because
we all remember great damage in the
early part of September.
In spraying for the first brood do
not use mist nozzle, but one that
throws a fine stream, as the object is
to force the poison way down into the
caIyx, and fine stream and force is
necessary to put it there. In spray
ing for later broods use a mist nozzle,
as the object is to coat the apple. A
Y nozzle is best at all times.
Be careful in spraying not to get
too much drip in spraying for second
brood, as drops in forming are apt to
pull the poison together, leaving the
surface of the apple bare In spots, but
be sure your apples are coated.
Don't neglect to band your trees
and examine the bands each week and
kill the worms, and the nearer the
color of the bark the band is the bet
ter. Every moth killed means the
saving of % apples from being wormy
or stung and that means quarter of
a box more clean apples at 81 per box,
worth 30 cents. At cost of So |
killed under the bands an average of
4 worms on 100 trees, which meant
the destruction of 10000 eggs, the saw
ing of 10, 900 apples from being wormy
or stung, or 100 boxes at 81 per box,
and that meant to me 5000 in coin.
Lastly, it is not the number of times
you spray that does the work, but
HOW and WHEN.
In another column will be found an
article supplementary to this paper
entitled Thinning" which will also
be found interesting.