Triple-resistant kochia [Kochia scoparia (L.) Schrad.] in Alberta

Hugh J. Beckie; Linda M. Hall; Scott W. Shirriff; Elise Martin; Julia Y. Leeson

doi:10.1139/cjps-2018-0256

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Hugh J. Beckie,^1,* Linda M. Hall,^2,** Scott W. Shirriff,¹ Elise Martin,² Julia Y. Leeson¹

¹Saskatoon Research and Development Centre, Agriculture and Agri-Food Canada, 107 Science Place, Sask
²Agricultural, Food and Nutritional Science, 410 Agriculture/Forestry, University of Alberta, Edmonto

^*Present address: Australian Herbicide Resistance Initiative, School of Agriculture and Environment, University of Western Australia, Crawley, WA 6009, Australia.
^**Corresponding author: Linda M. Hall (email: lmhall@ualberta.ca).

Abstract

A randomized stratified survey was conducted in Alberta in 2017 to determine the distribution and abundance of multiple-resistant [acetolactate synthase (ALS) inhibitor, glycine, and synthetic auxin] kochia. All populations were ALS inhibitor resistant, with glyphosate and dicamba resistance confirmed in 50% and 18% of populations, respectively. Ten percent of populations exhibited resistance to all three mode-of-action herbicides.

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Citation Download Citation

Hugh J. Beckie, Linda M. Hall, Scott W. Shirriff, Elise Martin, and Julia Y. Leeson "Triple-resistant kochia [Kochia scoparia (L.) Schrad.] in Alberta," Canadian Journal of Plant Science 99(2), 281-285, (28 January 2019). https://doi.org/10.1139/cjps-2018-0256

Received: 3 October 2018; Accepted: 14 November 2018; Published: 28 January 2019