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Ficurer 1.—Corn borer injury to various plants. Top at left: Larve and pupe in cornstalks, 
and young tassel attacked by the insect. Male and female moths drawn on same scale 
as the corn. Top center: A female moth with cluster of eggs on a section of corn leaf, 
on a considerably larger scale. Top right: Mature tassel showing typical injuries by 
caterpillar (the broken tassel stem is often the most noticeable evidence of the presence 
of the insect during the early summer months). Center: External and internal views 
of injuries inflicted on two ears of sweet corn. Lower half of the figure: Snap beans, 
beets, and celery attacked by the borer, cornstalk containing caterpillars, corn stubbles 
cut away to show how the caterpillars hide themselves in the fall, winter, and early 
spring months, ‘“ smartweed,” which is a favorite food at times, ‘‘ barnyard grass,” 
which in Massachusetts is often heavily infested, and “ cocklebur” plant, a weed that 
often serves as a breeding place for the pest, (Walton.) 
II 
