Confirmation of 4-Hydroxyphenylpyruvate Dioxygenase Inhibitor-Resistant and 5-Way Multiple-Herbicide-Resistant Waterhemp in Ontario, Canada

Hannah E. Symington, Nader Soltani and Peter H. Sikkema

Journal of Agricultural Science, 2024, vol. 14, issue 12, 53

Abstract: This is the first confirmation of 4-hydroxyphenylpyruvate dioxygenase-(HPPD)-inhibitor resistant waterhemp and the first report of 5-way multiple-herbicide-resistant (MHR) waterhemp in Ontario to Group 2, 5, 9, 14, and 27 herbicides. Seed was collected across southern Ontario in 2021 and tested for resistance to imazethapyr, atrazine, metribuzin, glyphosate, lactofen, mesotrione, and mesotrione + atrazine representing Group 2, 5, 5, 9, 14, 27, and 27 + 5 herbicides, respectively. All of the waterhemp populations collected in 2021 had 4-way resistance to imazethapyr, atrazine, glyphosate, and mesotrione. In seven Ontario counties, 5-way resistant waterhemp was confirmed which includes resistance to the HPPD-inhibiting herbicides.

Date: 2024
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://ccsenet.org/journal/index.php/jas/article/download/0/0/48019/51592 (application/pdf)
https://ccsenet.org/journal/index.php/jas/article/view/0/48019 (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:ibn:jasjnl:v:14:y:2024:i:12:p:53

Access Statistics for this article

More articles in Journal of Agricultural Science from Canadian Center of Science and Education Contact information at EDIRC.
Bibliographic data for series maintained by Canadian Center of Science and Education ().