Pink Bollworm, a Global Pest of Cotton (IMAGE) University of Copenhagen - Faculty of Science Caption The pink bollworm, a global pest of cotton, has evolved resistance to genetically modified cotton in India, but not in Arizona where farmers have planted refuges of conventional cotton to reduce selection for resistance. Credit Alex Yelich, University of Arizona Usage Restrictions Credit must be given to Alex Yelich, University of Arizona 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.