eeds in the field as are at that time in blossom. In September and
October the eggs are laid in the ground upon or about the roots of the
corn, and most of the beetles soon after disappear from the field. They
may ordinarily be found upon the late blooming plants, feeding as usual
upon the pollen of the flowers, and also to some extent upon molds and
other fungi, and upon decaying vegetation. There can be no further doubt
that the insect is single-brooded, that it hibernates in the egg as a
rule, and that this does not hatch until after the ground has been
plowed and planted to corn in the spring probably in May or June.
"Although the adult beetles, when numerous, do some harm by eating the
silk before the kernels are fertilized by the pollen, and also destroy
occasionally a few kernels in the tip of the ear, yet the principal
injury is done by the larva in its attack upon the roots. The extent of
this injury depends not only upon the number of the worms, but also upon
the soil and weather and the general condition of the crop, being worst
on high land and in dry weather. Under specially unfavorable
circumstances the loss due to the insect may amount to from one-fourth
to one-half or even three-fourths of the crop; but when the conditions
are generally favorable, it rarely amounts to more than ten or twenty
per cent, and frequently even to less. Although the roots penetrated by
the larvae die and decay, thrifty corn will throw out new ones to replace
those lost. The hold of the stalk upon the ground is often so weakened
that a slight wind is sufficient to prostrate the corn. Under these
circumstances it will often throw out new roots from the joints above
the ground, thus rallying to a certain extent against serious injury.
"As the result of numerous observations and comparisons, it is clearly
to be seen that little or no mischief is done except in fields that have
been in corn during the year or two preceding, and a frequent change of
crops is therefore a complete preventive. Beyond this, the life history
of the insect gives us little hope of fighting it effectually except at
too great expense, as the eggs and worms are scattered and hidden in the
ground, and the perfect beetle is widely dispersed throughout the
field."
* * * * *
California has about eighty thousand tons of wheat to ship to Europe.
Besides this a large amount is already stowed in ships.
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