The objective of this project is to determine the evolution or spread of glyphosate-resistant (GR) or auxinic-resistant kochia in Manitoba in 2018, Saskatchewan in 2019, and Alberta in 2021 since the 2012/2013 baseline surveys. In the 2012/2013 surveys, GR kochia was found in 5% of randomly-surveyed sites in Alberta and Saskatchewan (annually-cropped fields and non-crop areas such as oil well sites, railway rights-of-way, and roadside ditches), but only two sites in Manitoba.
Read MoreShort crop rotations provide an environment conducive for an increase in plant disease, weed pressure from herbicide resistance, and insect damage (these productivity decreasing factors will be referred to as “pests” in this document). While some short rotations are currently profitable, the lack of diversification in a cropping system can be detrimental to maintaining crop yield and profitability. Factors that contribute to the profitability of cropping systems will identify why the seeded area of some crops is declining while increasing for others.
Read MoreThe objective of implementing a threshold for weed seed production is to reduce the spread of herbicide-resistant weed biotypes. Understanding the timing of weed life cycle events (phenology) can improve the efficiency of weed control passes by informing growers of the optimal timing for weed control efforts. This research project aims to improve our understanding of weed phenology in western Canada, and in particular the phenology of weed seed production; an area of research which has been largely ignored.
Read MoreThis project aims to develop a decision support tool to aid producers in determining what products would constitute MEMOA for target weeds in their field. In addition a second tool would be developed to help identify the potential risk of herbicide resistance evolving based on a four year crop rotation and the resulting herbicide choices. A tool of this type has been created for Wyoming and Nebraska.
Read MoreEcological principles can be applied to agricultural practices to replace agrochemicals and increase productivity by implementing either species diversity e.g. mixed cropping or genetic diversity within species e.g. varietal mixture (VM). VM of several cultivars which belongs to the same market class and exhibit a similar quality profile but variable levels of pest resistance, drought tolerance and yield potential can be successfully implemented in large scale mechanized farming systems.
Read MoreKochia is one of the biggest agricultural weed problems in the southern Canadian prairies due to increased abundance of herbicide-resistant (HR) biotypes. The overall goals of this research project are to improve the understanding of synthetic auxin resistance in kochia; to determine how quickly this type of resistance will spread; to develop effective tools for management of these biotypes and, to stay ahead of potential new types of herbicide resistance through intensive population screening efforts.
Read MoreKochia is one of the biggest agricultural weed problems in the southern Canadian prairies due to increased abundance of herbicide-resistant (HR) biotypes. The overall goals of this research project are to improve the understanding of synthetic auxin resistance in kochia; to determine how quickly this type of resistance will spread; to develop effective tools for management of these biotypes and, to stay ahead of potential new types of herbicide resistance through intensive population screening efforts.
Read MoreThis project aims to evaluate physical control measures for kochia and to better understand the underlying abiotic and biotic ecology within kochia patches to accelerate remediation. Physical control measures for kochia are critically important due to the rapid development and spread of multiple herbicide resistance to Groups 2, 4, and 9 within kochia in Western Canada.
Read MoreHerbicide resistant weeds continue to make weed management more challenging in Western Canada. This project aims to develop a decision support tool to aid producers in determining what products would constitute multiple effective modes of action (MEMOA) for target weeds in their field. In addition, a second tool would be developed to help identify the potential risk of herbicide resistance evolving based on a four year crop rotation and the resulting herbicide choices.
Read MoreThe project involves a multi-faceted approach to addressing the herbicide resistance of wild oats. Outcomes include the increased awareness of resistance issue, producer-led, community based solutions to manage herbicide resistance in wild oats, and readily available extension materials. The long-term objective is to have a viable, ongoing Resistant Wild Oat Action Committee.
Read MoreThe overall objective of this research project is to develop an effective weed control system for herbicide resistant wild oat in wheat.
Read MoreThis project will investigate the efficacy of Harrington Seed Destructor on weed management across different cropping systems and with different weeds.
Read MoreThe objective of this project is to develop a weed clipping strategy to reduce crop-weed competition and weed seed production in wheat and lentil.
Read MoreIn this project, the researchers will evaluate chaff collection in combination with other cultural weed management techniques at several sites to control problem weeds in Western Canada.
Read MoreThe program has been very successful over the past four years and has developed a solid relationship with industry and growers alike. This has led to sustained funding from industry for the herbicide efficacy research conducted by the program and it is expected to continue with this client base into the future.
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