Mark Bernards is an Extension Weed Scientist at the University of Nebraska–Lincoln. He coordinates the annual UNL Extension Crop Production Clinic and delivers weed management information in newsletters, publications, and presentations. He conducts weed management research for corn, soybean, and grain sorghum cropping systems in southeast and south central Nebraska. His research interests include: adjuvant effects on herbicide activity, micronutrient interaction with glyphosate, biology and control of winter annual weeds, herbicide resistance, and off-site movement of pesticides. He received BS and MS degrees in Agronomy from Brigham Young University, and a PhD in Crop and Soil Science from Michigan State University.