Full TGIF Record # 325003
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Web URL(s):https://scisoc.confex.com/scisoc/2022am/meetingapp.cgi/Paper/144639
    Last checked: 01/31/2023
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Johnson, Bridgette C.; Harris, Jim; McElroy. J. Scott; Rutland, Claudia Ann; Patel, Jinesh
Author Affiliation:Johnson: Presenting Author and Auburn University; Harris, McElroy, Rutland and Patel: Auburn University
Title:Identification of foramsulfuron and sulfentrazone resistant goosegrass (Eleusine indica) populations
Section:Turfgrass pest management oral I (includes student competition)
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C05 turfgrass science
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Meeting Info.:Baltimore, Maryland: November 6-9, 2022
Source:ASA, CSSA, SSSA International Annual Meeting. 2022, p. 144639.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"Forty-one goosegrass biotypes from golf courses and country clubs throughout the United States that historically have been treated with foramsulfuron and sulfentrazone were suspected of herbicide resistance. Putative foramsulfuron resistant goosegrass populations were from Grand National Golf Course, Opelika, AL (R-R1)(R-R3), and Waiehu Golf Course, Maui County, Wailuku, HI (R-R2). Estimated sulfentrazone-resistant goosegrass populations were from Grand National Golf Course, Opelika, AL(D-R1), Paris Mountain Country Club, Greenville, SC (D-R2). Resistance was determined by visual injury ratings of plant response to the standard rate of foramsulfuron (28.89 g ai/ha) and sulfentrazone (279.63 g ai/ha) compared to a susceptible standard (PBU). Research was then conducted to assess the level of resistance of the five suspected resistant populations to increasing rates of foramsulfuron (1.81 to 115.56 g ai/ha) and sulfentrazone (26.21 to 1677.78 g ai/ha). Visual injury ratings were taken at 7, 14, 21, and 28 days after treatment (DAT) and aboveground biomass at 28 DAT. Dose-response evaluation showed that each foramsulfuron population R-R1, R-R2, R-R3 had a calculated I50 value of 0.12, 0.12, 0.09, respectively, whereas the susceptible biotype had a 0.02 I50. Each sulfentrazone population D-R1 and D-R2 had a calculated I50 of 0.11 and 0.21, respectively, whereas the susceptible biotype had a 0.03 I50. This data confirms the first E. indica biotypes found resistant to foramsulfuron and sulfentrazone in the world."
This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Johnson, B. C., J. Harris, J. S. McElroy, C. A. Rutland, and J. Patel. 2022. Identification of foramsulfuron and sulfentrazone resistant goosegrass (Eleusine indica) populations. Agron. Abr. p. 144639.
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