​​Burndown Programs for Effective No-Till in Areas with Glyphosate-Resistant Marestail

May 2013 | 27 min., 58 sec.
by Bill Johnson
Purdue University
https://doi.org/10.1094/GROW-SOY-05-13-084

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Summary

​This presentation will help consultants, growers, and other practitioners in the North Central region(s) understand the unique biology of this weed and why it is difficult to control with our current practices. We will discuss emergence patterns, why it has become such a problematic weed to manage in our current soybean cropping systems, and tactics recommended to reduce the impact of this weed on soybean yields.

About the Presenter

Bill Johnson​ Bill Johnson received a BS degree in Agricultural Science from Western Illinois University, and MS and PhD degrees in Weed Science from the University of Arkansas. Dr. Johnson served as an Assistant Professor of Agronomy and Extension Weed Specialist at the University of Missouri until joining Purdue University in 2002. His current areas of emphasis in research and extension include the biology and management of glyphosate-resistant weeds and interactions between winter annual weeds and soybean cyst nematode. In addition to his research and extension responsibilities, Dr. Johnson teaches the senior seminar in plant sciences course for undergraduates in the Botany and Plant Pathology Department, and team teaches an advanced weed biology course with his colleagues at Purdue University.​

Contact Information:
Email: wgj@purdue.edu

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