The daily banner. (Cambridge, Md.) 1897-2008, 1917-08-17

PROTECT THE GRAIN FROM
WEEVlL

College Park, Aug. 23-1t is difficult
TO estimate the loss each year from
what 10 generally known to the farmer
ms "wesyf." Not only is the actual
feeding value lost in infected grain,
but the presence OF weevil, especially
In wheat, regardless of how little the
damage, always esrts the grade one or
two points.
And now that ths heavy rains Of the
summer have caused much wheat to
sprout in the shock, or mold where 1t
was hauled into the barn TOO wet or
green, the determination Of the wesyn
is one other precaution that must
needs be taken TO conserve the small
amount thus saved. WeeyEy wheat Is
not good feed, It Is not good for -four,
and It isn't good for seed.
In the work of controlling granary
pests Prot. e. N. Cory, of the Ento-
mology Department. Of the State Agri-
cultural Collage has issued circular
in which the Carbon Bisulphide
Method OF control Is thoroughly ex-
planned.
The term "wesvtl." as used, is
general name for large humber OF
insect pests that attack stored grain
products. But It Is probably the
Angoumeis moth that does the great
est damage, often working through as
much as 80 per cent. Of the grain IN
the ban. The eggs Of this fswn eU.
ored moth are deposited in masses b.
tween the kernels OF corn or wheat
in the shock or In the granary and
the larvae or worms Matching there
from enter the gradn and feed wfthaA.
When ready to pupats, they cut their
way to the outside shell 1eavinE only
the outside meuabTans over the exit
hole. The moth, when Il energies from
the pupa case. easily breaks this
membrane and emerges from the
grain to produce another genera
ton of insects. II conditions are favor
able many generations are produced IN
year.
Fumiaation With Carbon HIsulphids
has proved the most effective method
Of control.
Carbon Bisulphide or Disulphide Is
q slightly yellowish liquid having q
very disagreeab1e odor (about the
same as that Of a rotten egg) due to
Impurities II Is highly volatile, that
Is, evaporates quickly, and produces a
gas heavier than afr and very imam
mabie.
u~x., - rLan nfe,tfnhfAA
Carbon Bisulphide should be used at
the rate of to pounds per 1000
cubic feet OF space in the granary or
per every 100 bushels OF grain to be
fumigated. The outside temperature
should be about 20 degrees at the time
OF tumigation for best results.
/ II the grain is in q room that Is
capable of being closed tightly, the
liquid may be exposed In shallow pans
! above the grain, on saturated pieces
Of burlap or it can be poured into the
pile through a piece Of pipe.
II tight room is not available the
grain may be covered with a tarpauMn
or a piece of canvass and the Carbon
Bisulphide exposed beneath 1t.
The greatest care should be used In
| regard to fire. Never carry a Lighted
lantern, pipe or cigar into q barn
where Carbon Bsulphids fumigation
Is IN progress.
| The exposure should last for Sc
hours. The fumigation should be re-
peated after an interval Of two weeks.
Shovel the grain over after each
| fumigatton so as to air It and prevent
the collection Of moisture and possible
! subsequent heating.
Where directions are followed there
! Is no chance for human poisoning a.
the Carbon Bisulphide evaporates COM
| plete1y.
Carbon Bisulphide can be purchased
from almost any drug store IN small
quantities or from any chemical sup
ply house. In large amounts It may
be secured from e. r. Taylor, Penn
Yam, N. Y, or the Independent Chemi-
cal Company, u Front street, New
York City.
Should further information be de-
sired it can be had by addressing Prof.
r. N Cory. College Park. Md