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

Exhibit J-2: Pink lime-sulphur l-l0,
calyx lime-sulphr l-30. 10 days atomic
sulphur lbs-100 gallons. 3 sprays. 35
per cent fungus.
Average fungus exhibit 2 and 3
sprays, 80 per cent.
Exhibit XII: Delayed dormant lime
sulphur ll0, calyx lime-sulphur LIS,
10 days lime-suphur 1-l5. sprays, Is
per cent fungus.
Note-Rather exceptional good re.
suit probably due TO delayed dormant
being put on late enough to be near
early pink and extra strength of lime
sulphur was used in calyX and 10 days.
This strength. however, is dangerous.
and may cause russeting of fruit and
burning of foliage.
Exhibit LII: Fall Bordeaux, delayed
dormant lime-sulphur lilo, calyx lime
sulphur lag. 8 sprays, 25 per cent fun
gus.
Exhibit LIZ: Delayed dormant lime
sulphur l-9, calyx iime-sulphur 1856. 2
sprays. 30 per cent fungus.
Average fungus exhibit l., 2 and 3
sprays, 373 per cent,
Exhibit M: Fall Bordeaux. pink
line sulphur l-20. 2 sprays. 80 per
cent fungus.
Exhibit M-2: Fall Bordeaux, pink
lime-sulphur part of orchard l-l0, other
part Bordeaux 1850. 2 sprays. so per
cent fungus.
Average exhibit NJ so per cent.
Exhibit Nj: Delayed dormant lime
sulphur lilo, pink lime-sulphur 1885, 10
days Bordeaux two-thirds of orchard.
$3.50. sprays, Is per cent fungus.
Exhibit NJ: Delayed dormant lime
sulphur l-9. pink lime-sulphur l25. 2
sprays. 80 per cent fungus.
Exhibit N-3: Fall Bordeaux, de-
layed dormant lime-sulphur LIS, pink
lie-sulphur l-30. 10 days atomic sulphur
10 lbs-lO0 gallons. 4 sprays. 80 per
cent fungus.
Average fungus exhibit N, 2, 8 and
sprays, AZ l-3 per cent.
Exhibit OIL: Calyx lime-sulphur
l-25, l spray, rs per cent fungus.
Exhibit P.l: Delayed dormant, lime
sulphur l.l0 spray, 80 per cent fun
gus.
1t seems from a close study and anal.
ysis of exhibits A to P, that it may be
helpful to the growers of Hood River
valley, to point out comparisons of
these analyses, showing the value of
certain number of sprays and also to
point out the loss from the omission of
any one of the important sprays. Later
on | will speak of the comparative
value Of different fungicides as evil
denced in these observations and re-
suits.
Exhibit A gave the highest percent
age. consisting of 6 sprays. fall Bor-
deaux. delayed dormant lime-sulphur
l-9. semi-dormant, pink, calyx and 10
days lime sulphur l-33, showing only 5
per cent fungus at thinning time, the
cleanest crop, with one exception, so
far as these results show, namely, ex
hlbit FL. which | will analyze specific
ally later.
Exhibit B, consisting of 5 sprays, fall
Bordeaux, delayed dormant, pink calyx
and 10 days, 10 per cent fungus, the
semi.dormant being omitted.
Exhibit C, 4 sprays, delayed. dormant,
pink, calyx and 10 days. per cent of
fungus. fall BordeuX and dormant
omitted.
Exhibit D, 5 sprays, fall Bordeaux,
delayed dormant, pink, calyx and lO
days, the semi.dormant. omitted, fun.
gus ia per cent. Attention is called
to the increased fungus in exhibit d
where 5 sprays we're applied, as CON-
pared to exhibit c where sprays were
applied, that atomic sulphur was used
in the cslyx in exhibit D.
Exhibit E, sprays, fall Bordeaux,
delayed dormant, pink. calyx and 10
days. Is per cent fungus. Comparison
should be made with exhibit &. 4
sprays. showing per cent fungus, at
tention being called to the fact that in
exhibit L atomic sulphur was used IN
the pink and calyx.
Exhibit F, sprays, fall Bordeaux,
pink. calyx and 10 days. Delayed dor
msnt and semi-dormant being omitted.
fungus u per cent. Comparison should
be made with exhibit c. where sprays
we're used, attention to the difference
is called for the reason that in exhibit
+ the grower applied an extremely
early pink, using large quantity, OF
spray per tree, fungus showing only D
per cent, thus decreasing the average
per cent of fungus in exhibit F below
the normal average.
: Exhibit G, 3 sprays. fall Bordeaux,
pink and calyx. 20 per cent. fungus.
Delayed, semi.dormant and ~ days