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found in or among the roots if search be made before September 1. If 
‘large numbers of grass-green beetles one fifth of an inch in length 
(about the size of a common red lady bug) are seen on the silks and 
tassels of the corn, or feeding upon the fallen pollen collected at the 
bases of the leaves, or upon the blossoms of ragweed or other flowering 
plants in the field, the crop has suffered from an attack of the corn root 
worm, of which these beetles are the adult, and the ground should be 
planted to some other crop the following year. 
1 8. <A deformed and unequal growth of the foliage, especially of 
that unfolding from the roll of leaves at the growing tip of the plant, 
with more or less irregular and ragged injury, when the corn is from 
one to two feet high, is often due to an attack by the first generation 
_of the corn worm, the second generation of which burrows in the kernels 
of the ear of corn during late! summer and early fall. 
9. On the other hand, the presence of elongate holes, placed side 
by side in an orderly manner, in short rows extending across the well- 
+ opened leaf, is commonly the mark of an injury done when the corn was 
smaller by the corn. bill bugs, several species of which will be described 
_ when injuries to the leaf are under discussion. 
} 10. An irregular eating away of the leaves of young corn, and 
a similarly irregular gnawing of the stalk near the ground when the 
plant is less than a foot in height, should lead to an examination of the 
earth about the base of the hill. If fine particles and small lumps of 
earth are found more or less closely webbed together in a mass approxi- 
mating the size of a hickory nut, some one or more of the species of root 
web-worms are doubtless at work in the field. 
11. The cutting of the young corn at or below the surface of the 
ground is an injury too well known as the work of the cutworms to 
require more than bare mention here. 
12. The appearance in the side of the stalk of a hole about the 
size of a straw, with a brown moist powder exuding, is evidence of the 
_ presence of the stalk-borer, an insect which often does a great and prac- 
_ tically irremediable damage to young corn in early spring, especially in 
- low grounds, by burrowing the stalk, pushing more or less of its excre- 
- ment out at the mouth of its burrow. 
13. A similar, equally evident burrowing of the ear, the excre- 
ment from which escapes by a hole through the green husks or becomes 
mixed through the silks at the tip of the ear, betrays ‘the presence of the 
corn worm already mentioned under 8. 
14.. The eating away of the blade of the leaf in Jate summer and 
- autumn so as to make large irregular holes, which may multiply and 
. increase in size until they finally leave only the stripped midrib and the 
_ bare stalk—the injury being commonly very much worst along the edges 
4 of the field—is commonly due to grasshoppers. 
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15. In the corn crib or granary the commonest serious mischief 
is the peppering of the kernel with little round holes, each the diameter 
_ of the head of a pin, the first suspicion of which will frequently be 
aroused by the appearance of fine particles of meal sifting down some- 
_ where within sight. The insect most likely to be responsible for this 
_ mischief is the grain moth; but various weevil species may also be 
involved. | 
fy. 
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