European Corn Borer Caterpillar (IMAGE) Tufts University Caption The European corn borer exhibits variation in two genes, per and Pdfr, that enable it to adapt to varying lengths of winter Credit Frank Peairs, Colorado State University, Bugwood.org Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.