Pine Bluff daily graphic. (Pine Bluff, Ark.) 1893-1942, 1911-09-29
How to- Control
Insects Injurious
10 Stored Products

but large number OF species attac!
many kinds of stored products, suc}
as grain, peas, beans, dried fruit, to
bacco, etc. Most of these insects
have been introduced by commerc'
into all parts of the world. The!
are far more troublesome in tllt
Southern states than anywhere elst
in America. These insects INCLUDE
such notorious pests as the Angou
mois grain moth, the Mediterranean
flour moth. the grain weevils ans
meal worms. Some species, like thu
first named insect and the rice wee
vii, attack the grain in the field
whence they are carried into the bins
but others live only within the barn
breeding in the stored grain yea
after year Injured grain suffers loss
In weight, its value as food for AM
mails is reduced, it bocemes unfit fol
human consumption and its germi
mating power is destroyed The an
nual damage to stored products Id
the United States has been conserv
atively estimated by experts as no.
less than $100O00,0o0.
Methods of Control. @
Troublesome as these insects are, II
is possible to largely reduce theil
numbers by careful use of preventiyt
and remedial measurese so that bu
little damage may be suffered. Since
some species, especially those thai
bred in corn, first get into it in Uni
field, grain should not be left stanf
ing a long time before it is takd
into the barns. The smaller cerea
as wheat, rye, oats, ETC., should !
threshed out as soon as they are>G
enough. The practice of leaving en-
in the shocks until late fall is AID
one, as it gives plenty of time Dr |
the Aneoumois grain moths and oier
pests to breed in the kernels. NGn,
like the smaller grains, should BEAR
vested just as soon as it is$affi-
GENTLY dry.
The new grain should not beSpred
in the cribs until they have been
cleansed of the Hjsects
that have been breeding in ther The
only possible way to. kill al1he in
sects in the bins or granerie is to
fumigate either with hydpcyanic
acid gas, carbon bisulphide orsulphur
1ioxide. The first named gasis such
deadly poison and pernetes 50
poorly that it is very comApnly not
used. Operators of large gaills and
lurserymen are the only pople still
'equired to make use oft. Some
Mill men fumigate the Mole mill
'nce year to clean it of sests. This
lrtfcle does not attemptA,o give in,
ormation as to the use zsf this gas.
anyone wanted such Instructions,
le Is advised to write lbr a letter
rom the writer. Mr.. Gorge A. Dean
i Manhattan. Kan, isHperfecting a
nipple method Of heatiE the mill to
UGH temperature that all pests,
including their eggs, will be killed
Without injuring the grim.
According to the experiments CT
If. R. l. Smith, entonologist at the
forth Carolina agricultural expert
lent station, this class Of insects can
. readily killed with sulphur fumes
sulphur dioxide). The amount cf
llphur necessary to kill the insects ,
estroys the terminating capacity OF ]
ne grain. 1t is therefore advised .
My to clean empty bins and grant, ,
ries of the pests. The sulphur IS
laced in a metal dish and is wet
18th alcohol and lighted with match
he fumes produced by burning
wo and half pounds of sulphur ii
900 cubic feet of space for 20 hour
I'LL kill all the exposed adults AM
he larvae In the grains, according b
lr. Smith.
The only insecticide that can INV
e recommended for fumigating Ne
rain is commercial carbon biill-
hide. Hydrocyanic acid gas is rot
enough and is too dad
= to, bother with, If something slse
an be used. In all fumigation the
ecret of success depends on @sing
he right amount of the chepicals
Turing the required time in aftight
ooms or chambers. The stndard
tregnths given by nearly all writer's
or carbon bisulphide fumigaton are
me pound Of the liquid for 10 cubic
eet Of grain in bins. or for 1000 Gu
BIC feet of space, II it is desired to
Use this gas in fumigatin rom, time |
If exposure "a hours. II The grain
8 not damp and is aired out after
he fumigation this amount of time
md strength will not intre its ger
powers. II the(enclosure Is
perfectly alright, this amount Of gas
has been found to kill al the insects
that 1t reaches. II there are cracks !
IN the room. several times the amount
must be used. Commercial carbon
bisulphide is sold by druggists at &
% 10 cents pound IN f00-pound
arums. The required amount Of liquid
. put in shallow dishes ON top of the
!.