Full TGIF Record # 333586
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Web URL(s):https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/152562
    Last checked: 12/08/2023
Publication Type:
Content Type:Abstract or Summary only
Author(s):Monson, Brooke; Brockenborough, James; Smeda, Reid J.; Xiong, Xi
Author Affiliation:Monson: Presenting Author and Columbia, MO; Brockenborough: Plant Science and Technology, University of Missouri, Columbia, MO; Smeda: University of Missouri, Columbia, MO; Xiong: Plant Sciences, University of Missouri-Columbia, Columbia, MO
Title:Influence of systemic herbicides on tuber suppression of yellow nutsedge (Cyperus esculentus)
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Meeting Info.:St. Louis, Missouri: October 29-November 1, 2023
Source:ASA, CSSA, SSSA International Annual Meeting. 2023, p. 152562.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"Yellow nutsedge is a perennial species highly adapted to growing conditions in turf and ornamental beds. The key to precluding the spread of established plants is suppression of tuber production. Although several herbicide modes of action, including ALS-inhibiting herbicides like halosulfuron, can effectively control yellow nutsedge, repeated applications have led to selection for resistance. The objective of this research was to assess the strategy of mixing ALS-inhibiting herbicides with glyphosate for yellow nutsedge control, with the ultimate goal to delay selection of herbicide resistance. Yellow nutsedge single shoots were established in large planter pots containing field soil. Seven weeks after establishment, treatments were applied to yellow nutsedge at the flowering stage. Treatments included single applications of glyphosate, imazaquin, or halosulfuron at the suggested label rate, or the label rate of glyphosate in mixture with either 0.75x or 1x label rate of imazaquin or halosulfuron, in addition to an untreated control. By four weeks after treatment (WAT), yellow nutsedge treated with halosulfuron, regardless of glyphosate, showed >50% shoot injury. In comparison, treatments containing imazaquin resulted in 43% or less shoot injury. At 6 WAT, tubers were extracted, counted and weighed. Halosulfuron alone effectively suppressed tuber production by 86% or greater, compared to the control, and addition of glyphosate did not result in greater tuber suppression. Treatments with imazaquin or glyphosate alone did not significantly decrease yellow nutsedge tuber counts compared to the untreated control. However, the label rate of imazaquin in mixture with glyphosate reduced tuber counts by 77% compared to the control, suggesting a potential synergistic effect. Additionally, imazaquin in mixture with glyphosate significantly reduced tuber size compared to the control, which may affect the germination rate of the tubers. Overall, this experiment suggested that imazaquin in mixture with glyphosate might be an effective alternative for yellow nutsedge control program."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Monson, B., J. Brockenborough, R. J. Smeda, and X. Xiong. 2023. Influence of systemic herbicides on tuber suppression of yellow nutsedge (Cyperus esculentus). Agron. Abr. p. 152562.
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    Last checked: 12/08/2023
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