Indiana CCA Conference 2020 Presentation

Farmers in the eastern cornbelt are faced with the increasing challenge of controlling weeds that are resistant to more than one herbicide side of action. Over the next 5 years, I believe we will need to incorporate more mechanical cultural and weed control tactics into our currently used herbicide programs. In this presentation I will share results from our research program on the incorporation of cover crops with traditional weed control tactics.


Bill Johnson

Professor of Weed Science
Purdue University

Dr. Johnson is a Professor of Weed Science in the Department of Botany and Plant Pathology at Purdue University. He has statewide responsibilities for weed science research and extension in agronomic crops, and he teaches Advanced Weed Biology and Senior Seminar. Dr. Johnson has extensive experience in the biology and management of herbicide-resistant weeds and crops, weed control with cover crops, and interactions between weeds and other plant pests. Dr. Johnson is a Past President and Fellow of the North Central Weed Science Society (NCWSS). He has won Outstanding Extension Specialist Awards from Purdue University, CropLife America, and the Weed Science Society of America (WSSA). He has published over 120 peer reviewed manuscripts and over 100 extension publications.  He has trained 30 graduate students and currently has an additional 5 students currently working on MS or Ph.D. degrees in Weed Science.