The Hood River glacier. (Hood River, Or.) 1889-1933, 1915-07-08

Later sprays he recommended IL IN,
weather was conducive to seab deyel
opment. When so treated. the frnit
and the foliage will be practically per
feet as regards scab injury In IN,
same year we find Galloway advising
hte following schedule: Use BordeauS
mixture. making the first application
before the blossoms open. When the
flowers are opening spray again, then
third time when the fruit is abou,
the size of a pea. After this two OF
more treatments should be made. the
number depending somewhat on the
variety treated, weather condition. and
so forth. Ordinarily. five sprayings
will be sufficient TO hold the disease in
check. hut if the season is rainy more
should be given
''ln 1906. ten yeas later. Waite has
the following campaign to offer
Spray with Bordeaux tether 1850
or the $3.50 formula, as follows
First, when the cluster buds have
opened and exposed the flower buds ;
second. just after the petals have fal-
len: third, a week or ten days later {;
and, fourth, two weeks after the third
spraying. In rainy season this dis.
ease is rather difficult to control and
may require five or six applications.
In case of dry spring, however, only
three sprayings are required
A year later. 1907, W. NJ. Scott rec.
ommended spraying with Bordeaux
mixture $3.50 formula, when the elus-
ter buds are open but before blooming,
and again as soon as the petals have
fallen. II the second application has
not been very thorough, a third should
be made seven or ten days later. In
case of wet spring three sprayings
are usually necessary
In 1909, Duggar, submits the follow.
ing spray campaign for scab: AT
least one spraying should be made with
strong Bordeaux mixture before bios
soming. A second spraying may be
given Immediately after the petals fall
and at least one more two weeks after
the second. The conditions, however,
must determine the length Of time in
tervening and the number of applica-
tions made.
Again in 1912 W. M. Scott, after re.
peated experiments had the following
in government bulletin: Until re-
Gently spraying with Bordeaux mix
ture constituted the remedy for scab,
but owing to the injurious effect on
both the fruit and foliage produced by
this otherwise excellent fungicide, es-
pecialy during wet seasons, dilute lime
sulphur solution is rapidly coming into
use as substitute for it. Lime sui.
phur has about the same fungicidal
value as Bordeaux mixture in the
treatment of apple scab and produces
decidedly less injury to fruit and foil
age. Taking solution registering 80
degrees Baume as standard, the
strength to use in spraying for scab is
II or II gallons to each SO gallons of
water. Spray the tree first when the
cluster buds open, just before blossom
ing; second, as soon as the petals fall
and third, two or three weeks later
"ln April 1915, G. s. jackson, of the
Oregon Agricultural College, recon-
mended the use of lime and sulphur in
preference to the Bordeaux.
'ln Australia Massee recommends
the pruning off and burning of all in
fected twigs. when the leaf buds
begin to swell and before they expand,
spray with Bordeaux mixture full
strength. Then when the leaves are
quite young spray with half strength
Bordeaux mixture. Spraying without
pruning off the infected shoots is USE
less.