The Hood River glacier. (Hood River, Or.) 1889-1933, 1916-02-24

cover so orchards in Hood River valley.
In each case the number of sprays,
time applied and the fungicides used
are stated in the various exhibits, also
the strength which is used in each one
of the fungicides.
The dormant spray means the fall
application of Bordeaux. The spray
refe red to as delayed dormant means
the spray which is usually applied as
the buds begin swelling. which in some
instances is extended by the growers
after the buds have opened out and the
leaves advanced quite conspicuously.
The percentages of scab given are at
thinning time.
The estimates are furnished by the
growers and in my judgment are about
correct as nearly as could be deter
mined by estimate without actual
counts.
The main object of this information
is first, to show that where the great
est number of sprays were used, the
cleanest crops we're obtained: second,
to show that certain omissions in
spraying were more serious than 9TH
ers third, that certain fungicides gave
better results than others.
First, will give you the number of
sprays and data in reference to each
individual orchard. Theselare classified
in exhibits-all growers who followed
a spraying program which was alike.
are classified under Exhibit A." The
numbers after Exhibit A and r indi.
cate the number of growers who fol-
lowed1the same system. These exhibits
run from "A" to "S." In some ex.
hibits there are half dozen or.more,
and in some there is only one example
of the spraying method. Where there
are more than one the average percent.
age of scab at thinning time for the
entire number is.given.
| will now proceed to give you the
program, followed by the different ex-
hibits. and later furnish observations
and conclusions:
Exhibit Al: Fall Bordeaux, De-
layed lime-sulphur 10. Delayed dor
mant, semi-dormant. pink, calyX and
10 days. 6 sprays, 5 per cent fungus.
Exhibit B-l: Fall Bordeaux. lime
sulphur l-l0. Delayed dormant. lime
sulphur LAO. pink. calyx and 10 days.
S sprays. 5 per cent fungus.
Exhibit B-2: Fall Bordeaux, Delay.
ed dormant. lime-sulphur LIP, pink
lime-sulphur, l-25. scalyx. lime.sulphur
l-30, 10 days lime-sul phur li0.
sprays. 10 per cent fungus.
Please note this orchard had 20 pei
cent fungus in 1914.
Exhibit B.3: Fall Bordeaux, delayed
dormant, lime. sulphur, lilo, pink Bor.
deaux 4.4.50. calyx, lime sulphur 1856,
10 days. lime sulphur lao. sprays,
Is per cent fungus.
Average fungus Exhibit B 10 per
cent. The average fungus in exhibit b
was increased by B.2 using an insuffici-
ent quantity, applying only 2 gallons
of spray for trees about l3 years old
otherwise exhibit B would probably
have shown an average of about from
to p per cent fungus.
Exhibit C.l: Delayed dormant lime
sulphur lilo. pink, calyx and 10 days
lime-sulphur lao. a sprays, S per
cent fungus.
Exhibit D-l: Fall Bordeaux, delayed
dormant, lime-sulphur, l-20, pink and
calyx lime-sulphur l.35. 10 days atomic
sulphur. 6 lbs-l00 gallons. 5 sprays,
10 per cent fungus.
Exhibit D-2. Fail Bordeaux. delayed
dormant, lime-sulphur lilo, pink lime
sulphur l-30, calyx lime sulphur l.33.
10 days atomic sulphur 6 lhs-l00 gal.
Ions. sprays. Is per cent fungus.
Exhibit d average fungus 17t per
cent.
Exhibit Ell: Fall Bordeaux, delayed
dormant lime-sulphur l-20, pink lime
sulphur l.35, calyx atomic sulphur, II
lbs-lOO gallons, 10 days. atomic sui
10 lbs-lOO gallons. sprays, Is per
cent fungus.
Exhibit FL: Fall Bordeaux. pink
lime-sulphur l20, calyx lime-sulphur
! SO. 10 days atomic sulphur lbs.l0C
gallons. 4 sprays. 5 per cent fungs.
Exhibit F.2: Fall Bordeaux, pink
lime.sulphur l-20. calyx me.sulpur
l-35, part of orchard. Bordeaux 4-4-5C
other part, 10 days Bordeaux 2A-4-100,
fungus Is per cent.
Average fungus exhibit F 10 per
cent, 4 sprays.
Exhibit G-l: Fall Bordeaux, pink,
lime sulhur lis. calyx lime -sulhur l-3s.
3 sprays, 20 per cent fungus.
Exhibit G-2: Fall Bordeaux, pink
lime-sulphur l-25, calyx lime-sulphur
l-3S. 3 sprays, 20 per cent fungus.
Average fungus exhibit 6 8 sprays,
20 per cent.
Exhibit HI: Fall Bordeaux, DELAYED
dormant lime-sulphur l-2O, calyx lime
sulphur l-35. 10 days lao. 4 sprays,
10 per cent fungus.
Exhibit H-2: Fall Bordeaux, delayed
dormant lime-sulphur 1-l0, calyx lime
sulphur l35. 10 days Bordeaux $3.50.
q sprays, so per cent fungus.
Exhibit H-3: Fall Bordeaux, de.
layed dormant. lime-sulphur lilo, calyx
lime-sulphur l-35. 10 days Bordeaux
1880. 4 sprays, 80 per cent fungus.
Exhibit H-4: Fall Bordeaux, de.
layed dormant Bordeaux $3.50, calyx
lime-sulphur lao, 10 days lime lphur
l-30. 4 sprays. 35 per cent fungus.
Average fungus exhibit II 26i. 4
sprays, pink spray being omitted.
Exhibit IL: Fall Bordeaux, delayed
dormant lime-sulphur Ill, pink lime
sulphur l-2S. cslyx lime-sulphur l-2s.
4sprays, 20 per cent fungus.
Exhibit l-2: Fall Bordeaux, DELAYED
dormant lime-sulphur LIZ, pink lime
sulphur les, calyx lime-sulphur l-35. 4
sprays. 25 per cent fungus.
Average fungus. exhibit | 22k per
cent. sprays.
Exhibit il: Pink lime-sulphur l-2O.
cslyx lime-sulphur l-25. 2 sprays, 80
per cent fungus.