-537- 
fourths of the damage mas in smeet corn. 
The average calculated loss of . crop hv the corn horer in 1933 for the entire 
area surveyed, based on the application of damage indices to populations of the 
insect, mas 7 percent in corn harvested for grain .and 13 • 3 percent in smeet 
corn. The avera<^:e per acre los.s in 1933 for. grain corn mas estimated cC.t $0,60 
and for smoet corn, at $23,20, In comparison, the average per acre loss in 1937 
for grain corn mas estimated at $0,33 an'i ^'or- smeet corn, at $22,46, 
On the basis of available information from other parts of the infested region 
in addition to those actually surveyed, the total amount of damage caused by the 
European corn borer in. 1933 in the United States is placed conservatively betmep 
2 and 2-| million dollars, .. . 
{ 
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