First report: spotted knapweed (Centaurea stoebe) resistance to auxinic herbicides

Spotted knapweed is a prohibited noxious weed that is primarily controlled with auxinic herbicides. A population collected from a managed rangeland in East Kootenay, BC, was highly resistant to both clopyralid and picloram, with R/S ratios of >25 600 and 28, respectively. This is the first report...

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Bibliographic Details
Published in:Canadian journal of plant science 2016-12, Vol.96 (6), p.928-931
Main Authors: Mangin, Amy R, Hall, Linda M
Format: Article
Language:English
Subjects:
2,4-D
aminopyralid
Centaurea stoebe
centaurée maculée
clopyralid
Herbicide resistance
Herbicides
Picloram
Plant sciences
résistance aux herbicides
spotted knapweed
WEED SCIENCE
Weeds
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Summary:Spotted knapweed is a prohibited noxious weed that is primarily controlled with auxinic herbicides. A population collected from a managed rangeland in East Kootenay, BC, was highly resistant to both clopyralid and picloram, with R/S ratios of >25 600 and 28, respectively. This is the first report of resistance in spotted knapweed.
ISSN:0008-4220
1918-1833
DOI:10.1139/cjps-2016-0008