Resources
This section of the website is under development, with more to come soon! Stay tuned.
Weed Survey Series Reports
Weed Abundance
- 19-1: Alberta Weed Abundance Survey 2017
- 17-2: Manitoba Weed Abundance Survey 2016
- 16-1: Saskatchewan Weed Abundance Survey 2014-2015
- 12-1: Alberta Weed Abundance Survey – Dryland 2010
- 10-1: Alberta Weed Abundance Survey – Irrigated 2009
- 05-1: Prairie Weed Abundance Survey 1970s to 2000s
- 03-1: Saskatchewan Weed Abundance Survey 2003
- 02-2: Manitoba Weed Abundance Survey 2002
- 02-1: Alberta Weed Abundance Survey 2001
Herbicide Resistance
- 19-2: Alberta Herbicide Resistance Survey 2017
- 17-3: Manitoba Herbicide Resistance Survey 2016
- 17-1: Saskatchewan Herbicide Resistance Survey 2014-2015
- 12-1: Saskatchewan Herbicide Resistance Survey 2009
- 10-1: Manitoba Herbicide Resistance Survey 2008
- 09-1: Alberta Herbicide Resistance Survey 2007
- 04-1: Alberta Herbicide Resistance Survey 2001
Fact sheets
Peer-Reviewed Articles
2023
- Evaluating seedbank stimulants for wild oat and volunteer cereal management on the Canadian Prairies
- Field testing of a physical impact mill in the Canadian Prairies
- Glyphosate-resistant downy brome (Bromus tectorum) control using alternative herbicides applied postemergence
- Impact of metribuzin dose and water stress on chickpea plant health
- Increasing frequency of multiple herbicide-resistant kochia (Bassia scoparia) in Alberta
- Serotiny facilitates kochia (Bassia scoparia) persistence via aerial seedbanks
- Survey of glyphosate- and dicamba-resistant kochia (Bassia scoparia) in Saskatchewan
- Using integrated weed management systems to manage herbicide resistant weeds in the Canadian Prairies
2022
- Baseline survey of herbicide resistance in Russian thistle (Salsola tragus L.) finds no resistance in Manitoba
- Crop yield losses due to kochia (Bassia scoparia) interference
- Economic impact of glyphosate-resistant weeds on major field crops grown in Ontario
- Exploiting the resource-ratio (R*) hypothesis for weed management in legume crops: An example of volunteer Brassica napus in soybean
- Potential spring canola yield losses due to weeds in Canada and the United States
- First report of glyphosate-resistant downy brome (Bromus tectorum L.) in Canada
- Fluroxypyr-resistant kochia [Bassia scoparia (L.) A.J. Scott] confirmed in Alberta
- Glyphosate- and acetolactate synthase inhibitor-resistant kochia (Bassia scoparia) control in field pea
- Herbicide diagnostics reveal multiple patterns of synthetic auxin resistance in kochia (Bassia scoparia)
- Multi-year and multi-site effects of recurrent glyphosate applications on the wheat rhizosphere microbiome
- Occurrence and management of herbicide resistance in annual vegetable production systems in North America
- Rapid increase in glyphosate resistance and confirmation of dicamba-resistant kochia (Bassia scoparia) in Manitoba
- Weed detection to weed recognition: reviewing 50 years of research to identify constraints and opportunities for large-scale cropping systems
- Western United States and Canada perspective: are herbicide-resistant crops the solution to herbicide-resistant weeds?
2021
- Burial environment drives seed mortality of kochia (Bassia scoparia), wild oat (Avena fatua), and volunteer canola (Brassica napus) irrespective of crop species
- Evaluation of panicle removal methods and crop topping applications as supplemental tools for wild oat (Avena fatua) management
- Fallow management input strategies for weed management in Florida cabbage production
- Flumioxazin soil persistence under plastic mulch and effects of pretransplant applications on strawberry
- Herbicide mixtures control glyphosate-resistant kochia (Bassia scoparia) in chemical fallow, but their longevity warrants careful stewardship
- Herbicide-resistant weeds in the Canadian prairies: 2012 to 2017
- Herbicide strategies for managing glyphosate-resistant and -susceptible kochia (Bassia scoparia) in spring wheat
- Kochia (Bassia scoparia) harvest date impacts nutrient composition, in vitro degradability, and feed value more than pre-harvest herbicide treatment or herbicide resistance traits
- Long‐term effect of fumigation and a sorghum cover crop on broadleaf and grass weeds in plastic‐mulched tomato
- Making farming more sustainable by helping farmers to decide rather than telling them what to do
- Osmopriming with polyethylene glycol (PEG) for abiotic stress tolerance in germinating crop seeds: A review
- Potential wheat yield loss due to weeds in the United States and Canada
- Sorghum cover crop and repeated soil fumigation for purple nutsedge management in tomato production
- The critical period for weed seed control: A proposed framework to limit weed seed return
- Tomato tolerance to preemergence herbicides in plasticulture using narrow bands and precision technology
- Transfer of resistance alleles from herbicide-resistant to susceptible grass weeds via pollen-mediated gene flow
- We stand on guard for thee: A brief history of pest surveillance on the Canadian Prairies
- Wheat density alters but does not repress the expression of a fluroxypyr-resistant kochia (Bassia scoparia) phenotype
- Wheat and cereal rye inter-row living mulches interfere with early season weeds in soybean
Research Posters
2023
- Manitoba survey of herbicide-resistant weeds in 2022
- Weed suppression by integrating cultural tactics in western Canadian soybean production
- Ile2041Asn substitution confers ACCase inhibitor resistance in foxtail barley (Hordeum jubatum)
- Digital imaging technology to classify herbicide-resistant and susceptible kochia (Bassia scoparia)
- The critical period for weed ‘seed’ control: The concept and its application
- Residual weed population shifts in Alberta – 1973 to 2023
2022
- Saskatchewan survey of herbicide-resistant weeds in 2019 and 2020
- Residual weed population shifts in Manitoba – 1978 to 2022
- The economic threshold for glyphosate-resistant kochia (Bassia scoparia) in canola
- Alberta survey of herbicide-resistant kochia (Bassia scoparia) in 2021
- Residual weed population shifts in Saskatchewan – 1976 to 2021
2021
2019
2017
WEEDS IN THE NEWS
2024
2023
- 2023 Western Canadian Herbicide Resistance Update
- On the ropes against kochia
- Glyphosate-resistant downy brome confirmed in Alberta
- The spread of herbicide resistance in grassy weeds
- When less is more in weed control
- Glyphosate-resistant downy brome control
- Group 14-resistant kochia found in central Sask.
- How to contain herbicide-resistant kochia
- Spotlight on weeds
- Map weed clusters to manage resistance
- Agronomy update: Less weed competition for soybeans grown on low-nitrogen soils
- Top Crop Summit speaker series: Kochia control in a herbicide-resistant world
- Your provincial weed outlook for 2023
- Herbicide-resistant weed update for Saskatchewan
- Use multiple strategies to control weeds in your crops
- Controlling herbicide-resistant kochia requires some different strategies
- Herbicide Resistant Kochia – Challenges and Management
- Herbicide resistance can’t be ignored
- The case for integrated weed management
- Nasty weeds get an R rating
- Less weed competition for soybeans grown on low-nitrogen soils
- Multiple resistant kochia continues to spread in Alberta
- When less is more: Extra N boosts canola volunteers
- Growers running out of kochia options
Other Resources
- Canadian Weed Science Society
- Weed Science Society of America
- Western Society of Weed Science
- International Herbicide-Resistant Weed Database
- Resistant Wild Oat Action Committee
- Sprayers 101 – A Resource for Safe, Effective and Efficient Spraying in Agriculture.
- Weeds – Canadian Agronomist
- Weeds – Manage Resistance Now
- Keep it Clean
- GROW (Getting Rid of Weeds) through Integrated Weed Management