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AMERICAN COCKROACHES Periplaneta americana (L.) INTRODUCTION Cockroaches are among the most common of insects. Fossil evidence indicates that cockroaches have been on earth for over 300 million years. They are considered
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Document Date: 2013-02-06 11:55:27
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AMERICAN COCKROACHES Periplaneta americana (L.) INTRODUCTION Cockroaches are among the most common of insects. Fossil evidence indicates that cockroaches have been on earth for over 300 million years. They are considered