Canadian Journal of Plant Science (2016) 96, 928-931

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Amy R. Mangin and Linda M. Hall (2016)
First report: spotted knapweed (Centaurea stoebe) resistance to auxinic herbicides
Canadian Journal of Plant Science 96 (6), 928-931
Abstract: 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.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Linda M. Hall

Research topic(s) for pests/diseases/weeds:
pesticide resistance of pest

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Centaurea stoebe micranthos (weed) Canada (west)
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