Initial testing of a cage mill with an incorporated blade system on volunteer canola

Tidemann, Breanne D.; Kubota, Hiroshi; Reid, Patty; Zuidhof, Jennifer

doi:10.1139/cjps-2020-0010

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…32 In a recent study in Canada, initial testing of the Rede-kop™ impact mill unit resulted in > 99% volunteer canola control and its efficacy was not affected by blade configuration and chaff feeding rate. 33…”

Section: Impact Millsmentioning

confidence: 99%

“…It was noted that due to the high weed seed destruction (> 98%) potential of the HSD impact mill, it could be highly effective in many cropping systems in western Canada and the U.S. Great Plains 32 . In a recent study in Canada, initial testing of the Redekop™ impact mill unit resulted in > 99% volunteer canola control and its efficacy was not affected by blade configuration and chaff feeding rate 33 …”

Section: North American Research Efforts Thus Farmentioning

confidence: 99%

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Current outlook and future research needs for harvest weed seed control in North American cropping systems

Shergill

Schwartz-Lazaro

León

et al. 2020

Pest Management Science

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Harvest weed seed control (HWSC) comprises a set of tools and tactics that prevents the addition of weed seed to the soil seed bank, attenuating weed infestations and providing a method to combat the development and spread of herbicide-resistant weed populations. Initial HWSC research efforts in North America are summarized and, combined with the vast area of crops suitable for HWSC, clearly indicate strong potential for this technology. However, potential limitations exist that are not present in Australian cropping systems where HWSC was developed. These include rotations with crops that are not currently amenable to HWSC (e.g. corn), high moisture content at harvest, untimely harvest, and others. Concerns about weeds becoming resistant to HWSC (i.e. adapting) exist, as do shifts in weed species composition, particularly with the diversity of weeds in North America. Currently the potential of HWSC vastly outweighs any drawbacks, necessitating further research. Such expanded efforts should foremost include chaff lining and impact mill commercial scale evaluation, as this will address potential limitations as well as economics. Growers must be integrated into large-scale, on-farm research and development activities aimed at alleviating the problems of using HWSC systems in North America and drive greater adoption subsequently.

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Section: Impact Millsmentioning

confidence: 99%

Section: North American Research Efforts Thus Farmentioning

confidence: 99%

Current outlook and future research needs for harvest weed seed control in North American cropping systems

Shergill

Schwartz-Lazaro

León

et al. 2020

Pest Management Science

View full text Add to dashboard Cite

show abstract

Field testing of a physical impact mill in the Canadian Prairies

Tidemann,

Harker,

Beckie

et al. 2024

Can. J. Plant Sci.

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Herbicide resistance in western Canada has increased interest in alternative weed management strategies. Physical impact mills, a form of harvest weed seed control, have been identified as a strategy that may be well suited for Canadian use. The efficacy of the Harrington Seed Destructor, a physical impact mill, was evaluated in 20 producer fields in Alberta on a wide spectrum of weed species over 3 years. Significant differences in weed densities between the physical impact mill treatment and the regular harvest densities were few, however some population density reductions were observed. Measurable reductions in weed densities may have been limited by the short timeframe of the experiment, the high initial densities of the weeds, or the targeted weed species having dormancy or longer-term seedbanks. Additionally, identified knowledge gaps on how best to optimize physical impact mill efficacy may have reduced the efficacy of the physical impact mill in this study. This study showed no conclusive evidence for the efficacy of a physical impact mill on tested weed species under field conditions. However, it did provide a number of important considerations for future studies.

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The potato vine crusher: a new tool for harvest weed seed control

McKenzie-Gopsill,

MacDonald,

Anderson

et al. 2024

Can. J. Plant Sci.

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Harvest weed seed control (HWSC), an evolving strategy in weed management, is highly effective for control of a variety of weed species in North American cropping systems. Previous devices for weed seed devitalization at harvest have been limited to tow-behind and integrated combine systems. The potato vine crusher (PVC) is a harvester-mounted set of rollers originally designed for crushing and control of Ostrinia nubilalis (Hübner) larvae during potato (Solanum tuberosum L.) harvest. To evaluate potential of the PVC for HWSC, we conducted stationary testing of spring tension and roller speed settings to maximize devitalization of lambsquarters (Chenopodium album L.), the most problematic weed species in Canadian potato production. In addition, we evaluated efficacy of the PVC for devitalization of several pernicious weed species under controlled conditions and during a simulated harvest. Increasing PVC spring tension reduced devitalization of lambsquarters seed, whereas roller speed had minimal effect. In contrast, maximized spring tension and minimized roller speed reduced lambsquarters emergence (53%) in soil. Hypocotyl and radicle elongation was observed from lambsquarters seed fragments under controlled conditions, potentially contributing to increased control in soil through fatal germination. High levels of seed devitalization (65 – 94%) was observed for all species under controlled conditions. During simulated harvest, control of large weed seeds (50 – 63%) was observed whereas smaller seeds were not impacted signifying the importance of seed size for PVC efficacy. These studies demonstrate the PVC as a promising new tool for HWSC in Canadian potato production systems.

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Initial testing of a cage mill with an incorporated blade system on volunteer canola

Cited by 4 publications

References 7 publications

Current outlook and future research needs for harvest weed seed control in North American cropping systems

Current outlook and future research needs for harvest weed seed control in North American cropping systems

Field testing of a physical impact mill in the Canadian Prairies

The potato vine crusher: a new tool for harvest weed seed control

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