Keowee courier. [volume] (Pickens Court House, S.C.) 1849-current, 1910-11-16
Observation-Disclosures. .s..isi.s..s. .s..s..s
]. CLEMSON EXTENSION WORK ].
]. -------- j.
y. Article XXIV. j.
's''.ls. .s.i'ss.e3.ss..i .l.'i..s.iss3. .s.i..i.
WeeyiIs in Corn.

starch. When full grown they
change to the dormant or pupal
stage, from which the full grown
weevil emcrges and works it's way
out to lay the eggs for another gen
GRAFTON. The entire time, from egg
laying to the development Of the
full grown weevil, requires about six
weeks
The first step in controlling corn
weevils is to select the seed corn in
the field, paying special attention to
the ears that are well covered by the
shuck, and If possible, that hang
with the pointed end downward. This
Is an important precaution, although
not sufficient to fully protect the
corn in the cribs.
Treatment Of Corn in Cribs.
Carbon bisulphide is colorless
liquid, with strong, disagreeable
odor 1t vaporizes rapidly at ordi-
nary temperatures, is highly infam-
mable and when ignited is explosive
1t Is, therefore, important to keep
away fire of any kind, whether flame,
stove, lantern, embers, lighted pipe
or cigar This chemical is very
widely used at present, and when the
above precautions are observed there
is no danger from accidents 1t may
be purchased at any drug store or
chemical wholesale house, ranging
from ten to twenty-five cents per
pound. The brand that has given
the best satisfaction n our expert
mental work is named Fuma and
costs about ten cents a pound. The
liquid and vapor coming from it are
heavier than air and will sink, there
fore the application is made at the
top OF the crib and not from below.
fnmlgation should be done on warm
days, as vOlatilzation is slower in
cold weather and consequently less
effective.
Assuming that the crib is moder-
! ately tight, it is used at the rate of
three pounds to 100 bushels of
grain, or approximately 900 cubic
feet OF space, the latter being for an
| empty crib. 1t should be repeated in
ten days. 1t may be distributed in
seNeral shallow vessels, but tie SIM
plest way Is to sprinkle it over the
top like water and if blankets are
available the surface Of the corn
should be covered. Where the bin IS
open, the best possible thing to do is
to make 1t tight. In case of log
cribs, this may be accomplished by
means Of canvas tackled over the
walls.
Where only small quantity of
grain IS to be fumigated, such as seed
corn or cowpeas used for seed, it may
be accomplished by pouring 1t in a
| coal oil or molasses barrel. Such
barrel will accommodate about three
bushels Three to five ounces Of car
bon bisuphide is poured over the
surface and the barrel tightly closed
for twenty-four to thirty-six hours.
The top of the barrel may be made
perfectly tight by covering it with
several burlap bags weighted down
with boards. A permanent covering
for this purpose may be made by
heavily painting a piece Of canvas of
proper size, which is then laid over
| the opening and barrel hoop drop-
ped over the top to hold 1t firmly in
| position.
Carbon bisulphide IS not poisonous
nor caustic. 1t drives the air from
| the space to which it is applied and
| causes suffocation. When overcome
| by this gas in building, the symp-
toms consist Of dry feeling of the
skin ana a streaked headache, ac-
companicd by dizziness. This will
pass off Immediately after a person
reaches the fresh air. 1t is not adj
visable that people affected with
heart trouble handle this gas to any
great extent.
Among other methods for controIl-
Ing weevils, lime and salt are some
times recommended. These mate
rials are not nearly as effective
as fumigation, while the decrease in
the palatability Of the corn, where
lime is employed, makes the use of
this material Objectionable
The use Of each does not decrease
the palatability, but, in order that
1t may do any good at all it must be
used at heavy rate. A fair appli-
cation would consist of rs to 100
pounds Of salt to 800 bushels Of
corn. Better permeation Is secured