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A New Approach to Weed Management to Mitigate Herbicide Resistance in Argentina

Published online by Cambridge University Press:  20 January 2017

Claudio Rubione  and
Sarah M. Ward
Claudio Rubione
Affiliation:
Claudio Rubione R&D, Av. Mitre 1641, 9 De Julio, 6500 Buenos Aires, Argentina
Sarah M. Ward*
Affiliation:
Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO 80523
*
Corresponding author's E-mail: [email protected]
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Abstract

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The evolution of herbicide-resistant weeds is a major concern in the corn- and soybean-producing Pampas region of Argentina, where growers predominantly plant glyphosate-resistant crop varieties and depend heavily on glyphosate for weed control. Currently, 16 weed species in Argentina are resistant to one or more of three different herbicide mechanisms of action, and resistant weed populations continue to increase, posing a serious threat to agricultural production. Implementation of integrated weed management to address herbicide resistance faces significant barriers in Argentina, especially current land ownership and rental patterns in the Pampas. More than 60% of Pampas cropland is rented to tenants for periods that rarely exceed 1 yr, resulting in crop rotation being largely abandoned, and crop export taxes and quotas have further discouraged wheat and corn production in favor of continuous soybean production. In this paper we discuss ways to facilitate new approaches to weed management in Argentina, including legal and economic reforms and the formation of a national committee of stakeholders from public and private agricultural sectors.

Keywords

cornZea mays L.soybean, Glycine max (L.) MerrArgentinaexport taxesherbicide resistanceland tenancylease lawPampas
Type
Research Article
Information
Weed Science , Volume 64 , Issue S1: Special Issue: Human Dimensions of Herbicide Resistance , 2016 , pp. 641 - 648
Creative Commons
Creative Common License - CCCreative Common License - BYCreative Common License - NCCreative Common License - SA
This is an Open Access article, distributed under the terms of the Creative Commons Attribution-NonCommercial-No Derivatives licence (http://creativecommons.org/licenses/by-nc-sa/4.0/), which permits noncommercial re-use, distribution, and reproduction in any medium, provided the original work is unaltered and is properly cited.
Copyright
Copyright © 2016 by the Weed Science Society of America

Footnotes

Associate Editor for this paper: William Vencill, University of Georgia.

References

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