Bug Scout 1981
Insects Controlled by Winter
(Tom Turpin, Entomologist, Purdue University)
Two of the great winter migrations to the South: geese and corn-soybean farmers!
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December 1981

One pleasant aspect of the approach of winter is the absence of insects.  Where have all of last summer's insects gone?

Some insects, like grasshoppers and corn rootworm beetles, have died of old age or cold.  However, before they died, they deposited plenty of eggs in the soil.  These eggs will survive the winter and hatch next spring.

Some soil pests like white grubs and wireworms just burrow deeper into the soil.  There, below the frost line, they spend the winter.

Ladybird beetles, Mexican bean beetles, and woolly bears are the examples of insects that seek sheltered locations to spend the cold months.  These insects sometimes end up in homes during the winter.

Some insects have not developed a way to survive the Indiana winter.  These insects, like corn leaf aphids and armyworms, must replenish their populations from warmer climates each spring.

Like Nathan Hale, insects have but one life to give.  Unfortunately, when next summer rolls around there will be plenty more to replace those lost this winter.    

by Tom Turpin, Entomologist, Purdue University

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