Opportunities and challenges for harvest weed seed control in global cropping systems

A - Papers appearing in refereed journals

Walsh, M. J., Broster, J. C., Schwartz-Lazaro, L. M., Norsworthy, J. K., Davis, A. S., Tidemann, B. D., Beckie, H. J., Lyon, D. J., Soni, N., Neve, P. and Bagavathiannan, M. V 2018. Opportunities and challenges for harvest weed seed control in global cropping systems. Pest Management Science. 74, pp. 2235-2245.

AuthorsWalsh, M. J., Broster, J. C., Schwartz-Lazaro, L. M., Norsworthy, J. K., Davis, A. S., Tidemann, B. D., Beckie, H. J., Lyon, D. J., Soni, N., Neve, P. and Bagavathiannan, M. V
Abstract

The opportunity to target weed seeds during grain harvest was established many decades ago following the introduction of mechanical harvesting and the recognition of high weed-seed retention levels at crop maturity; however, this opportunity remained largely neglected until more recently. The introduction and adoption of harvest weed seed control(HWSC)systems in Australia has been in response to widespread occurrence of herbicide-resistant weed populations. With diminishing herbicide resources and the need to maintain highly productive reduced till age and stubble-retention practices, growers began to develop systems that targeted weed seeds during crop harvest. Research and development efforts over the past two decades have established the efficacy of HWSC systems in Australian cropping systems, where widespread adoption is now occurring. With similarly dramatic herbicide resistance issues now present across many of the world’s cropping regions, it is timely for HWSC systems to be considered for inclusion in weed-management programs in these areas. This review describes HWSC systems and establishing the potential for this approach to weed control in several cropping regions. As observed in Australia, the inclusion of HWSC systems can reduce weed populations substantially reducing the potential for weed adaptation and resistance evolution.

KeywordsHWSC
Weed-seed retention
Herbicide resistance
Chaff cart
Narrow-window burning
Bale direct system
Chaff tramlining
Chaff lining
Harrington Seed Destructor
iHSD
Year of Publication2018
JournalPest Management Science
Journal citation74, pp. 2235-2245
Digital Object Identifier (DOI)doi:10.1002/ps4802
Publication dates
Print01 Feb 2018
Copyright licenseCC BY
PublisherWiley
ISSN1526-498X

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