The times dispatch. [volume] (Richmond, Va.) 1903-1914, 1914-10-26
BAD INSECTS IN
BIN AND GRANARY

Professor George a. Dean writes:
Of the twelve OF thirteen species of
beetles attacking stored grains, not
more than fivo or six are commonly
To these may be added four species
of small moths. of which the Angou-
mois grain moth Is the most serious
pest attacking ripened corr. and the
meal moth and the Mediterranean
flour moth the serious ones In meal,
ducts. The farmer applies tho term
''wevil" to nil of these insects. The
measures to be employed in the con-
troll OF these insects are both preven-
tive and insecticidn1.
AS a preventive measure. all the old
stored. be removed and the floors,
walls and ceilings OF the bins thor
oughly cleaned If the granary has
been badly infested, it should he fumi-
gated. Cleanliness is very important
in preventing Injury by these insects
Dust, dirt, rubbish. refuse grain. flour
and meal serve as breeding places.
Frequent agitation or handling of the
grain will destroy many of these
moths. because they are unable TO free
themselves from mass of 1t and per-
ish In the attempt.
Fortunately II matters little what
species may be causing the trouble
for all succumb TO tho same treatment.
The simplest, most effective and mex
nensive remedy Cor all insects nfcst-
ing the farmers grain stored In tight
bins Is careful fum,gation with car
bon bsulphide.
If the building is reasonably tight.
one pound of carbon bisulphide is
sufficient for every 700 cubic feet OF
space. or one pound for every 100
bushels of grain.
The building and bins must he lnade
as nearly a!r-tiGht as possible In or
der that the vapov may remain In all
parts of the space in full strength ana
for the required time. The vapor must
enter all cracks and crevices by diff
fussion. The doors and Windows
should be arranged they can be
opened from the outside when fumi-
cation Is completed Care should be
taken to have everything ready and
in It's place, so that after the first yes
sci has received its liquid IL will be
unnecessary to stop TO adjust any
thing. Everything should be done to
avoid unnecessary delays and to ia
cilitate the rapid evaporation of the
liquid.
The liquid should be placed in shall
low pans or dishes as high rs possible
in the bins or building, since the VA
por is heavier than air and settles 10
the lower parts. 1t should be well dis
tributed, having not more than a half
pound in a place.
If n building of more than one
floor is to be fumigated. the opera tor
should begin on the first floor and
work upward. and after placing the
liquid In the second story, leave the
building through window that he
can close after him. If Impossible to
get out from the upper story. the car
bon bisulphide should first be distrib-
uted there. working downward as rap
idly as possible TO avoid the settling
vapor.
The bins or building should be al
lowed to fumigate from twenty-four
TO thirty-six hours. Doors and win
dows should be opened wide and the
building or bins aired thoroughly one
or two hours beore entering.
The vapor of this liquid is highly
infammable and explosive. No fire
or light Of any sort should be allowed
about the building while the fumiga
ton is in progress. The application
should always he made in daylight. for
artificial light of any kind is danger
Gus. Electric lights must not he used,
since when turning them on or off
there is always danger of producing a
spark. Nor is IL safe to have heat of
any kind in the building while the
fumigation is in progress.