Shawn Conley, Soybean and Wheat Extension Specialist
Dr. Shawn Conley visits a wheat field to answer this question. For more information from Dr. Conley, visit http://www.coolbean.info Integrated Pest Management (IPM), University of Wisconsin.
[youtube]http://www.youtube.com/watch?v=kjlyNa_XGwU&list=PL44D622149CDDD748&index=23[/youtube]