b4 BULLETIN 156, U. S. DEPARTMENT OF AGRICULTURE. 
had been stiffened by frost in the fall, and which was so badly in- 
fested the following spring that the crops were absolutely destroyed. 
The fatality to the beetles caused by the destruction of the pupal 
cell in the fall has been apparently somewhat overdrawn. In, our 
cages at the field station at Hagerstown, Md., we had, in March, 1914, 
many adults of Agriotes mancus alive in cages wherein they were 
subjected to outdoor weather conditions. These adults were removed 
from their pupal cells during September, 1913. 
Two other remedial measures have been suggested from time to 
time, the first of which is trapping the larve in potato and other 
vegetable baits and hand killing; the second is killing the adults 
with poisoned bait of several kinds—clover, sweetened liquids, bran 
mash, potatoes and other vegetables, and rape cake. Miss Ormerod 
found a true rape-seed cake quite useless, but reports? “ Kurrachee 
cake,” made from mustard seed, as killing the larve which fed 
upon it. These methods have been found very inefficient, and even 
were they successful in killing the insects they would be impractical 
so far as the extensive cereal and forage crops are concerned. 
1 Proc. Ent. Soc. London, 1882, p. x1x. 
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