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Herbicide Resistance Management: Recent Developments and Trends

Australian Herbicide Resistance Initiative (AHRI), School of Agriculture and Environment, The University of Western Australia, Crawley, WA 6009, Australia
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Plants 2019, 8(6), 161; https://doi.org/10.3390/plants8060161
Received: 3 May 2019 / Revised: 31 May 2019 / Accepted: 5 June 2019 / Published: 8 June 2019
(This article belongs to the Special Issue Herbicide Resistance in Plants)
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Abstract

This review covers recent developments and trends in herbicide-resistant (HR) weed management in agronomic field crops. In countries where input-intensive agriculture is practiced, these developments and trends over the past decade include renewed efforts by the agrichemical industry in herbicide discovery, cultivation of crops with combined (stacked) HR traits, increasing reliance on preemergence vs. postemergence herbicides, breeding for weed-competitive crop cultivars, expansion of harvest weed seed control practices, and advances in site-specific or precision weed management. The unifying framework or strategy underlying these developments and trends is mitigation of viable weed seeds into the soil seed bank and maintaining low weed seed banks to minimize population proliferation, evolution of resistance to additional herbicidal sites of action, and spread. A key question going forward is: how much weed control is enough to consistently achieve the goal of low weed seed banks? The vision for future HR weed management programs must be sustained crop production and profitability with reduced herbicide (particularly glyphosate) dependency. View Full-Text
Keywords: best management practices; crop competition; herbicide resistance; integrated weed management; precision weed management; site-specific weed management best management practices; crop competition; herbicide resistance; integrated weed management; precision weed management; site-specific weed management
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Beckie, H.J.; Ashworth, M.B.; Flower, K.C. Herbicide Resistance Management: Recent Developments and Trends. Plants 2019, 8, 161.

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