Maps of the Midwest (IMAGE) U.S. National Science Foundation Caption Simplified landscapes, with lots of cropland and little natural habitat, promote crop pests. These maps of the Midwest show landscape simplification on left and relative insecticide use on right. Credit Tim Meehan/UW-Madison 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.