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Table 1 presents the data on the value of the corn crop and the losses 
caused by the European corn borer in 1940 within the counties surveyed in .each 
of 19 infested States, 
The infested area surveyed in 1940, for which damage estimates have been 
prepared, comprised 5*369*528 acres of corn harvested for grain, with an esti- 
mated crop value of $105,171*673* and 171,15*+ acres of sweet corn, with an esti- 
mated crop value of $20,700,230* The combined . acreage of grain and sweet corn 
was 5,540,682 and the estimated crop value of' both totaled $125,872,503. 
The estimated total loss by the European corn borer to the crop in the area 
surveyed in 1940 was- $6,679,827. This estimated loss was 'divided as follows; 
Corn harvested for grain, $4,140,479 (62 percent. of the entire loss); sweet cor: 
$2,539*348 (3S percent of • the entire loss). In 1939* 46., 4 percent of the total 
loss was in corn harvested for grain and 53*6 percent in sweet corn. 
In the surveyed area.s in the Lake Stales (Ohio, Michigan, Indiana, Illinois 
Wisconsin, western Pennsylvania, and western Hew York) and in .Kentucky. the loss 
caused by the corn borer in 1940 *to corn harvested for grain was estimated at 
$3, *+95, 810 (8.6,3 percent of the entire loss in that area) and to sweet corn at 
$552,6l4 (13*7 percent of the entire loss), or ‘a total 'of $4,048,424, 
In the surveyed areas in the Eastern States (Hew England, New Jersey, Dela- 
ware, Maryland,. Virginia, eastern Hew York, and eastern Pennsylvania) the loss 
caused by. the corn borer in 1940 to corn harvested for grain was estimated at 
$644,669 (24.5 percent of the entire loss in that area) and to sweet corn at 
$1,986,734 (75*9 percent of the entire loss)', or a total of $2,631,403, 
Tlie greatest damage by the corn borer to, corn harvested. for grain in areas 
surveyed in 1940, as in 1939, occurred in Ohio, Michigan, . and Indiana,, where the 
estimated losses were $2,144,591* $656, 040, and $553, 193, respectively. The 
estimated losses caused by the pest to sweet corn in 1940 were highest in the 
States of Hew Jersey, New York, and Connecticut, where they were $871,149,- 
$572,860, and $413,324, respectively. 
