Potential wheat yield loss due to weeds in the United States and Canada

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dc.contributor.authorFlessner, Michael L.en
dc.contributor.authorBurke, Ian C.en
dc.contributor.authorDille, J. Anitaen
dc.contributor.authorEverman, Wesley J.en
dc.contributor.authorVanGessel, Mark J.en
dc.contributor.authorTidemann, Breanneen
dc.contributor.authorManuchehri, Misha R.en
dc.contributor.authorSoltani, Naderen
dc.contributor.authorSikkema, Peter H.en
dc.coverage.countryUnited Statesen
dc.coverage.countryCanadaen
dc.date.accessioned2022-03-17T16:44:34Zen
dc.date.available2022-03-17T16:44:34Zen
dc.date.issued2021-12en
dc.description.abstractYield losses due to weeds are a major threat to wheat production and economic well-being of farmers in the United States and Canada. The objective of this Weed Science Society of America (WSSA) Weed Loss Committee report is to provide estimates of wheat yield and economic losses due to weeds. Weed scientists provided both weedy (best management practices but no weed control practices) and weed-free (best management practices providing >90% weed control) average yield from replicated research trials in both winter and spring wheat from 2007 to 2017. Winter wheat yield loss estimates ranged from 2.9% to 34.4%, with a weighted average (by production) of 25.6% for the United States, 2.9% for Canada, and 23.4% combined. Based on these yield loss estimates and total production, the potential winter wheat loss due to weeds is 10.5, 0.09, and 10.5 billion kg with a potential loss in value of US$2.19, US$0.19, and US$2.19 billion for the United States, Canada, and combined, respectively. Spring wheat yield loss estimates ranged from 7.9% to 47.0%, with a weighted average (by production) of 33.2% for the United States, 8.0% for Canada, and 19.5% combined. Based on this yield loss estimate and total production, the potential spring wheat loss is 4.8, 1.6, and 6.6 billion kg with a potential loss in value of US$1.14, US$0.37, and US$1.39 billion for the United States, Canada, and combined, respectively. Yield loss in this analysis is greater than some previous estimates, likely indicating an increasing threat from weeds. Climate is affecting yield loss in winter wheat in the Pacific Northwest, with percent yield loss being highest in wheat-fallow systems that receive less than 30 cm of annual precipitation. Continued investment in weed science research for wheat is critical for continued yield protection.en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationFlessner, M., Burke, I., Dille, J., Everman, W., VanGessel, M., Tidemann, B., . . . Sikkema, P. (2021). Potential wheat yield loss due to weeds in the United States and Canada. Weed Technology, 35(6), 916-923. https://doi.org/10.1017/wet.2021.78en
dc.identifier.doihttps://doi.org/10.1017/wet.2021.78en
dc.identifier.eissn1550-2740en
dc.identifier.issn0890-037Xen
dc.identifier.issue6en
dc.identifier.urihttp://hdl.handle.net/10919/109354en
dc.identifier.volume35en
dc.language.isoenen
dc.publisherCambridge University Pressen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectwheaten
dc.subjectTriticum aestivum L.en
dc.subjectBest management practicesen
dc.subjectcrop lossen
dc.subjectherbicidesen
dc.subjectsmall grainsen
dc.subjectweed managementen
dc.subjectweed controlen
dc.titlePotential wheat yield loss due to weeds in the United States and Canadaen
dc.title.serialWeed Technologyen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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