Rate of herbicide resistant weed development: A Canadian Prairie case study

Genetically modified crop adoption in Canada has been the key driver in removing tillage as the lead form of weed control, due to increased weed control efficiency. Land use has transitioned from the use of summerfallow to continuous cropping, predominantly involving zero or minimum tillage practice...

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Main Authors: Chelsea Sutherland, Savannah Gleim, Simona Lubieniechi, Stuart J. Smyth
Format: Article
Language:English
Published: Taylor & Francis Group 2025-12-01
Series:GM Crops & Food
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/21645698.2025.2477231
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author Chelsea Sutherland
Savannah Gleim
Simona Lubieniechi
Stuart J. Smyth
author_facet Chelsea Sutherland
Savannah Gleim
Simona Lubieniechi
Stuart J. Smyth
author_sort Chelsea Sutherland
collection DOAJ
description Genetically modified crop adoption in Canada has been the key driver in removing tillage as the lead form of weed control, due to increased weed control efficiency. Land use has transitioned from the use of summerfallow to continuous cropping, predominantly involving zero or minimum tillage practices. Prairie crop rotations have diversified away from mainly cereals to include three-year rotations of cereals, pulses, and oilseeds. Total herbicide volume applied has increased as crop production acres increased, but the rate of herbicide active ingredient applied per hectare has declined. Diverse crop rotations allow for weed control using herbicides with different modes of action, reducing selection pressure for resistant weed development. Herbicide-resistant weeds are an important concern for farmers, as the loss of key herbicides would make weed control exceedingly more difficult. The objective of this case study is to examine herbicide resistance weed development in the Canadian Prairies and to identify changes in resistance development following GM crop adoption.
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spelling doaj-art-bc0e0d2369ad4e499411fe6c1ba8ded52025-08-20T03:48:28ZengTaylor & Francis GroupGM Crops & Food2164-56982164-57012025-12-0116125226210.1080/21645698.2025.2477231Rate of herbicide resistant weed development: A Canadian Prairie case studyChelsea Sutherland0Savannah Gleim1Simona Lubieniechi2Stuart J. Smyth3Department of Agricultural Economics, University of Saskatchewan, Saskatoon, CanadaDepartment of Agricultural Economics, University of Saskatchewan, Saskatoon, CanadaDepartment of Agricultural Economics, University of Saskatchewan, Saskatoon, CanadaDepartment of Agricultural Economics, University of Saskatchewan, Saskatoon, CanadaGenetically modified crop adoption in Canada has been the key driver in removing tillage as the lead form of weed control, due to increased weed control efficiency. Land use has transitioned from the use of summerfallow to continuous cropping, predominantly involving zero or minimum tillage practices. Prairie crop rotations have diversified away from mainly cereals to include three-year rotations of cereals, pulses, and oilseeds. Total herbicide volume applied has increased as crop production acres increased, but the rate of herbicide active ingredient applied per hectare has declined. Diverse crop rotations allow for weed control using herbicides with different modes of action, reducing selection pressure for resistant weed development. Herbicide-resistant weeds are an important concern for farmers, as the loss of key herbicides would make weed control exceedingly more difficult. The objective of this case study is to examine herbicide resistance weed development in the Canadian Prairies and to identify changes in resistance development following GM crop adoption.https://www.tandfonline.com/doi/10.1080/21645698.2025.2477231GM cropsherbicidessustainabilitytillageweed control
spellingShingle Chelsea Sutherland
Savannah Gleim
Simona Lubieniechi
Stuart J. Smyth
Rate of herbicide resistant weed development: A Canadian Prairie case study
GM Crops & Food
GM crops
herbicides
sustainability
tillage
weed control
title Rate of herbicide resistant weed development: A Canadian Prairie case study
title_full Rate of herbicide resistant weed development: A Canadian Prairie case study
title_fullStr Rate of herbicide resistant weed development: A Canadian Prairie case study
title_full_unstemmed Rate of herbicide resistant weed development: A Canadian Prairie case study
title_short Rate of herbicide resistant weed development: A Canadian Prairie case study
title_sort rate of herbicide resistant weed development a canadian prairie case study
topic GM crops
herbicides
sustainability
tillage
weed control
url https://www.tandfonline.com/doi/10.1080/21645698.2025.2477231
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AT stuartjsmyth rateofherbicideresistantweeddevelopmentacanadianprairiecasestudy