The ranch. [volume] (Seattle, Wash.) 1902-1914, 1908-03-15

attitudes Oh montana anu OH fuSel
Sound. Some good authorities say
that the green aphis and the oyster
she'll bark louise do more damage to
the apple crop on Puget Sound than
the codling moth. The weather that
is unfavorable to the green aphis is
favorable to the codling moth and
vice versa.
With us the damage from the green
aphis is confined almost entirely to
young trees and to new shoots on old
trees. The damage is not permanent
one and the trees soon recover, Hence,
we never spray for this insect alone,
but what we do in controlling 1t Is
done in spraying for the scale. Hop
growers in the Yakima valley do not
spray for the hop aphis.
Jno. NJ. Doak, Olga, Wash, under
date of March 2, writes as follows:
81 have been a subscriber and
reader of The Ranch for several years
and 1 always read your part OF 1t II
l do not get around to read any of the
rest of it; but l do not remember OF
ever having heard you express your
self on the treatment of Oyster Scale.
NV orchard and several of my neigh
bors' orchards are becoming badly at
fected with the scale, and what spray
ing we have done so far only seems
to have made them more frisky. This
spring we propose to use the lime
sulphur wash. Now, we have man
here who claims to be quite an author
lty on sprays, and he says the proper
way to mix the two is to put the sui
phur in with the lime as 1t Stacks,
thereby getting rid of the old process
of boiling. He says some Of the lead
ing orchardists are doing 1T that way
now. Then, again, we have others
here who claim the most effective time
to spray for the scale is after they
come, out from under their she'll and
begin to travel, then use the kerosene
emulsion. If it would be convenient
for you to- do SO and not imposing too
much on your time and good nature,
I would like to know your opinion OF
the matter"
The oyster shell bark louise is hard
TO reach on account of the protection
afforded the insect by the she'll from
which it takes it's name. The lime
sulphur wash is the best remedy for
this pest. More lime than is ordi-
narily used would make the mixture
more effective. The addition of caus-
tic soda concentrated lye) would
make an improvement. Spray very
thoroughly, covering every part OF
each twig, for this spray is eftectlve
only by contact. 1t is claimed tnat II
the lime is used so as to make heavy
coating, it will peel off in flakes and
kill the lice.
AS to the method of cooking the
lime-sulphur wash by the heat gen
Grated in the stacking OF the lime, II
has often been tried and in some cases
recommended, but it has generally
been condemned by our most careful
experimenters. The trouble with this
method is, it does not in most cases
boil the mixture long enough. Our
method is to fill our tank about one
third full of water, heat it to about the
boiling point and then put in both the
SULPHUR and the lime. The Stacking
of the lime helps in the boiling but
is not sufficient to give the mixture
the proper color. We boil 1t about an
hour. or till it has an amber color, then
fill up the tank and heat that to the
boiling point. All makeshifts are gen.
erally destructive of thorough work.
If a man has a small orchard and does
not want to go to the trouble OF put
ting In the proper tanks, it would be
better to buy the ready-made prepare
ton. which is generally thoroughly
boiled.
The trouble with the theory OF spray
ing with kerosene emulsion after the
scale comes out from under its shell
and begins to travel, is that it does
not come out and travel at all. The
Young scale travels about from one to
two days and then anchors for life
These Young scales can be effectually