14 Farmers’ Bulletin 1294. 
NEW YORK. 
In this region of the corn-borer infestation the extent of injury 
and economic loss caused by the European corn borer to date 
has been comparatively 
shght. The injury and 
loss, as well as the de- 
gree of infestation, how- 
ever, have been greater 
in the western than in 
the eastern area of the 
State. An intensive 
clean-up campaign in 
eastern New York by the 
State authorities soon 
after this infestation was 
discovered may also have 
aided in preventing the 
increase of the pest which 
otherwise might have oc- 
curred. 
In the western area of 
the infestation, near 
Lake Erie, sweet corn is 
infested to a_ slightly 
greater degree than are 
the various varieties of 
flint and dent corn in the 
most heavily infested 
fields, while in sections 
which represent the aver- 
age conditions of  in- 
festation sweet corn is 
approximately twice as 
heavily infested as are 
the field-corn types (dent 
or flint). Sweet corn 
representing average 
conditions in this area 
has an average of about 
one-tenth of the stalks 
containing the borer, 
while 3 in each 100 ears 
are unfit for market. In 
comparison with this 
condition, dent corn is 
found to have an average 
of 5 per cent of the stalks 
; infested, while but 1 ear 
Fic, 10.—Mature ear of flint corn, showing damage in 100 contains the borer. 
by the European corn borer. fi 
However, in the most 
heavily infested sections, sweet corn has an average of slightly 
less than 25 per cent of the stalks infested, with an occasional maxi- 
