The Mason County journal. [volume] (Shelton, W.T.) 1886-1927, 1899-03-24
scab OF Apples ana Pears.

Tits we'll known that the scab Of
.apples and pears is a fungus disease.
Although in many particulars similar
IL hos been recently ascertained that
tic fungus Which infests the l'sar is
different species from that which IN
tests tie apple. Thus if an orchard is
infested with apple scab it does not
follow that the pears wiltalso be scab-
lby, as She different species Of fungus
spores do not spread from one to the
other
We find some varieties are more
liable to scab than others. 1t stands
to reason that Tic more tender and
finer varieties are more liable to at
tackled than the harder kinds. ] have
before me a bulletin which states that
OF tho pears the lie Condo, KiefIer and
Bartlett are less attacked than such
varieties as the Anjou, Duchess, Clair
geau, Sheldon ard Flemish Beauty.
OF the apples I do hot know at this
time what varieties are the least sus-
ceptible to this di:aase. tt has been
proven that the fungus spores pass tho
winter on branches, docaying fruit and
old fruit boxes in which infested fruit
has been stored, as a precautionary
measure all Of this material possible
should be destroyed. as the spores of
this luugii begin to terminate and
multiply with the first warm weather,
preventive measure shonM be begun to
as early as possible. Students OF this
disease have found scab spots on The
unopened fruit buds.
For the prevention Of this fungus
many experiments have been made at
The different agricultural experiment
stations throughout The United States.
The final results of these experiments
generally agree, and recommendations
are made accordingly. BY spraying
three times with The Bordeaux mixture
it mas been found we can keep the up
per hand Of the disease. The first
spraying should be made before bios
soming but after the fruit buds burst
the second Immediately after the petals
fall; land the third two weeks later. ii
rainy weather follows after the third
spraying it would be advisable to give
another spraying within two weeks.
Under no condition should spraying
be done when trees are in full bloom,
for not only will pollination be hinder
cd by the consequent wetting Of the
pollen, as poison is. sometimes added
to the Bordeaux mixture at this time
to keep in check de caterpillars and
codln moth, it would be certain death
10 The bees, our busy friends, who are
helping us by carrying pollen from
flower to flower.
The Bordeaux mixture IS made in
the following manner: Six pounds Of
copper sulphate (blaostone), 4 pounds
lime, 80 gallon water. Dissolve the
bluestone in 80 gallons Of water. This
is more easily done if the bluestono is
suspended in the water in a piece OF
sacking. Slack the lime carefully in q
small quantity OF water, slowly adding
enough water to make creamy liquid.
Then pour this slowly into the blue
stone solution with enough water to
make 80 gallons. If properly pre-
pared Tic mixture VIII be a deep sky
blue color. This mixture can be used
TO advantage against any other fungus
or blight, such as leaf spot and Leaf
blight.
rs has been suggested before, Paris
! green may be added to this fungicide
to assist in. combating Leaf or bud
eating insects, in the amount OF !
pound to so gallons Of spray.-Paul
I AIehner, in Sidney Independent.