71 
MOW TO KILL CORN WEEVILS. 
The fall of 1893 we made applications of Carbon Bisulfide to 
corn in shuck and to corn with shuck taken off to kill the large 
number of weevils that were in the corn at the time. 
This material is a foul-smelling liquid which evaporates at ordi- 
nary temperatures and is highly inflammable. We placed a pint of 
this fluid every three feet in the several bins of corn on November 
nth. 
On December 10th, we opened the corn and found all the weev- 
ils dead that were in the shucked corn, all the liquid evaporated 
from the cans. The corn in the shuck still had a few living weevils 
in it, but by far the greater part were dead. O11 February 10th 
following, we again inspected the corn and found all weevils dead 
in both kinds of corn. No fresh weevils had entered and thousands 
of dead oues testified to the efficient method of treatment. 
J. H. CONNELL, 
Texas Experiment Station. 
LOSS FROM GRAIN WEEVILS IN TEXAS. 
A Texas correspondent of Insect Life writes : "For many years 
in succession I had my corn in the bin more or less ruined by wee- 
vils. From mv own experience in this line, and what I know from 
other sources, 1 should judge that there is an annual loss of over a 
million dollars from weevils in Texas alone. 
Last fall, in putting up my corn, I placed two open bottles con- 
taining Bisulfide of Carbon about four feet apart on the floor of 
the bin. The mouths of these bottles w< re covered with a single 
layer of cheese cloth, and each bottle covered with an old broken 
box. The corn was thrown on these boxes and the bin filled to its 
utmost capacity. 
The result of this experiment was highly successful. What live 
weevils were admitted from the field were destroyed and none fur- 
ther appeared. Thus, at a cost of fifty cents, with very little trouble, 
I effectually protected about 500 bushels of corn against the weevils. 
Another feature about this experiment is that I have noticed neither 
mouse nor rat in the bin, nor any traces of them, which was not the 
case before, for in previous years they, too, had done great damage 
to the corn .—Published in American Elevator and Grain Trade 
Aug. IS, ' 92 . 
The report of Experiment Station at Newark, Delaware, in 
Bulletin No. 21, says: “We have used the Bisulfide of Carbon on 
several thousand bushels of wheat iufested with the granary weevil 
with most excellent results.” 
