The ranch. [volume] (Seattle, Wash.) 1902-1914, 1907-11-01

in our previous opinion, is that 1t pays
to spray thoroughly for the codling
moth. 1t is easy to miss some OF the
apples if the work is hastily done
Here is our advantage in using arsen-
ate of lead. However much we may
use, it will not burn the foliage. 1t Is
true that arsenic is the poison in all
sprays for the codling moth. Arsenic
combined with acetate Of copper
makes paris green, arsenic combined
with soda makes an arsenate OF soda,
and arsenic combined with acetate OF
lead makes the arsenate of lead. The
advantage of the last named compound
is that the burning property OF the
arsenic is destroyed while the power
to kill the insects is not impaired
When the Gypsy moth became so very
destructive in Massachusetts, 1t was
found that if the compounds of arsenic
then in use were used sufficiently
strong they not only killed the larvae
but killed the leaves also. This led
to experimenting and the result was
arsenate of lead, which does not in
lure the foliage. This was a great
victory in our fight with the biting
insects.
y
We find that not only must the
spraying be very thorough but 1t is
very important to kill off the first
brood of larvae as much as possible
A man in Oregon thinks he can Kill
all the first brood and can in that way
eradicate this worst of all insect pests
do not believe this Is possible, and
if this man can make good in this case
I'LL = hni cd 10 q
benefactor. But there Is no question
but the best way to diminish the raw
ages of the second brood is to kill
all we can of the first brood. 1t is
not the first brood that Injuries our ap-
pies. So little are the ravages of the
first brood that all would go with the
thinning. If there was but one brood
we could let them do their work and
never miss any apples. But this brood
being unchecked the second one comes
on like the lice and frogs in Egypt
and will make almost clean sweep
of our crop By killing their father
and mother in the first brood you kill
their progeny in the second brood
multiplied forty or fifty times.
y
Speaking of insect pests I wish to
call attention to one method OF COM
batting them that just now is recelv-
ing much attention. This method con-
sists in finding parasites that will prey
on these injurious insects. In the cOun-
tries whence have come our worst in
sect pests it is a we'll known fact that
their ravages are not a very serious
menace. The San Jose scale came
from China and was imported into
this country on some nursery stock
and found it's first Judgement at San
Jose, California Hence, it's popular
name. But in China it is not very
serious pest because it is held in check
by other insects that feed on the scale.
The cooling moth is from Europe, but
there it does not do very much harm
for the reason that certain kind OF
a fly with an almost unpronounceable
latin name hunts out the larvae or
pupae of this moth and deposits it's
eggs in them and the eggs thus laid
in the larvae Matching out eat them
up or at least kill them. Other cases
might be given. Even in our own
country now we have many beneficial
insects that are helping us fight our
battles. These are our insect friends.
1t is a very erroneous idea to suppose
that all insects are our enemies. Ii
it were not for the insects that prey
on other insects and also the help
we derive from birds we could not
raise crops of grains and fruits.
+
Recoenizine the good that parasites