Eradication or mitigation? How to manage patches of glyphosate resistant Echinochloa colona L

Abstract

Glyphosate-resistant Echinochloa colona L. (Link) is a common weed in non-irrigated cotton systems in Australia. E. colona is a small-seeded species that is not wind-blown and has a relatively short seed bank life. These characteristics make it a potential candidate to attempt to eradicate resistant populations when they are detected. A four year systems experiment established in 2012 was developed to determine the practicality of eradicating glyphosate resistant populations using different tactics under field conditions.