The Hood River glacier. (Hood River, Or.) 1889-1933, 1918-05-30

Present developments indicate
that trouble from the codling moth
can be expected unless growers take
extra precaution in the control of
the insects this summer, Many or
chardists were very late with the
calyX application and still others
failed to even apply the spray.
Where such conditions occurred IN
the orchard very close watch of the
insect will have to be maintained OF
much damage will result before har-
vest time
The emergenee of the first brood
of moths will be very irregular and
long drawn out, which will result in
long drawn out period for the
Matching of the small worms. Some
moths appeared in the hot spell of
three weeks ago During the past
week a good many have emerged IN
the breeding cages located in differ
ent sections of the valley. This in
dicates that the moths are issuing
rather generally in the orchards "a
the valley and that they will soon be
depositing eggs. Egglaying does
rot become extensive until a tenn
perature of 60 degrees or more is
reached after sundown-the time at
which eggs are deposited Up to
the present time this temperature
las not occurred but it can be ex
pected most any time now. In or
der to be adequately protected, it
means that arsenate of lead should
be used in a delayed ten-day spray
IN orchards where codling moth in
jury was prevalent last season grow
ers should by all means take this
extra preeaution to check the deyel
Cpment of the first brood This
should be followed up with the regu-
lar moth spray or 30-day application,
which will be due about the 18th of
June The exact time of this appli-
cation will depend upon the future
progress made by the insects and
existing weather conditions
Some orchardists have kept their
orchards free from worms. In these
the application of the ten-day spray
viii be less essential owing to the
fact that scab infection is so Slight
The recommendations however,
for the control Of scab are problem
atical To be entirely safe and re
duce the possibilities of scab infec-
ton to practically nothing, the lime
sulphur should be applied at this
time Scab infections are very rare
at the present time and we are ap-
parently in no great need for an ap-
plication of fungicide unless these
infections appear on the foliage. In
fecti0ns which occurred in the last
rain have not had time to appear,
it'll the result that other conditions
may take place in the near future.
Where the extra worm spray or de-
layed ten-day spray is considered not
| necessary by the grower, the follow
inc ic nffnraIs nalaN a
application and await results If
Infection should appear in the fol
iage, spray at once. This will de-
rand close watch in the orchard.
Keep in touch with the experiment
station for developments. Growers
should remember that they should
be ready to spray and do it in hur-
ry if unfavorabe conditions arise.
This recommendation seems advis-
able due to the very Insignificant
amount of scab present at this writ
ing.
In the many orchards where the
two worm sprays should be used the
following formula is suggested for
the first. Lime-sulphur $50, arsenate
of lead tpowder) 2-100, paste 400
| This should be on the trees by the
third of June.
Generally speaking the green and
voolly aphis has not become injur-
ous Where they occur in numuets
add tobacco to the spray at the rate
of 1-1200,
/