European Corn Borer

e-1 The European corn borer became established in the eastern part of the United States around 1915. One of the earliest methods of controlling it was to burn infested corn stalks. This picture, taken around 1920, shows a New England farmer setting fire to a shock of infested corn.
This farmer is reducing the number of European corn borers by plowing under old corn stalks. When the overwintering borers emerge from the ground, they will have no place to hide, and will be killed by birds, insects, rodents, or the weather. e-2
e-3 Parasites brought in from Europe by entomologists destroy a large number of European corn borers and have become an important control factor, particularly in Eastern United States. When released in infested cornfields, they seek out borers and lay eggs in or on them. When the eggs hatch, the immature parasites feed on the borers and in so doing eventually destroy them.
Special self-propelled, high-clearance sprayers and dusters have been developed for treating fields infested by the European corn borer. In this 'operation, the farmer is applying DDT to a field of corn. e-4


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