Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1904-05-06
TIME FOR SPRAYING.
County Fruit Tree Inspector Makes a
Number Of Valuable Sugges tions,

The time has arrived for the spraying
Of all apple, pear and ounce trees, and
,ooseberry and black currant bushes,
With arsenical spray, formula No. /,
which is either Paris green or white
arsenic dissolved IN soda or lime, the
formula Of which is given in all notices
circulated by the Salt Lake county in
spectors Of pests and can be had on
application.
Some people will tell you seriously
that there is no good IN spraying as
they have put the spraying mixtures on
worms or insects, or have dropped them
In Paris green spray, and the worms or
insects have craWled away unframed.
such people show how little they know
Of the principle Of spraying. With
your permission J will explain Paris
green or any arsenical spray only Kills
insects whenever said insects either eat
part of the leaves or fruit wherein 1t Is
sprayed. and does not affect them by
| its coming in contact with their bodies,
| only when It gets inside; so you may
| readily see that dipping them in 1t would
| be harmless to insects. on the other
| hand, kerosene emulsion tobacco or nj
| by contact, an altogether different prin-
| clpe. Some persons say, Why not use
| that, 20 get immediate results2 For
| the reason that although you may Kill
| all Insects today the eggs that have
| been laid win not hatch till tomorrow
| or next day, or next week, and you fail
| to reach the embryo insect which said
| egg contains whereas, by spraying
with Paris green 1t settles on the foil
| age and fruit, so that whenever the
young worm crawls out OF its egg and
| commences to eat It's first or second
| meal It gets a little of said arsenious
! poison IN its inside, and of course goes
| on a strike and gives up business. Here
| then. IS the differences the one acts as
| trap always ready TO destroy the IN
| sect as long as the spray does not lose
! It's vitality through exposure or being
] washed of or blown Off, the other acts
! like q shot Of a gun-you hit the insect
aud II IS done for you miss 1t and II
| lives and increases and prosper5- one
! class Of spray acts Immediately and
| destroys by contact and its use Is over,
the other does not hurt anything TO look
at but keeps It's destroying power In
operation for about II days, under or
| binary conditions
one point more. Sucking insects can
| not be reached by Paris green or ar
senioal spray, and must therefore be
reached by caustlc, nicotine or kero-
sene spray. Under the head Of sucking
Insects we class all scale and all kinds
OF lice or aphis, Therefore, II your
peach or plum trees, or rose bushes,
are affected by lice do not try To- spray
with Paris green, but use the kerosene
emulsion or nicotine wash; but u you
are going 20 protect your apples and
pears or gooaeberies from worms, use
the arsenicnl spray, and repeat in IA
days. and so until the fruit Is ripe.
The hluestone wash, or what Is Vailed
the Bordeaux mixture Is also valuable,
hut only I'm cases whore fu-gi Is pres
ent or IN other words where plant or
fruit IS inclined TO rot, or disease or
destruction outside OF the damage usu-
ally inflicted by Insects comes,
Respectfully.
JOHN II, SORENSEN,
Inspector Of pests, Salt Lake County