Potato Beetle (IMAGE) Michigan State University Caption Fields with a variety of plants seems to attract fewer plant-eating insects, such as three-lined potato beetles, than farm land with just one type of crop. Credit William Wetzel, Michigan State University 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.