Full TGIF Record # 325017
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Web URL(s):https://scisoc.confex.com/scisoc/2022am/meetingapp.cgi/Paper/143392
    Last checked: 01/31/2023
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Godara, Navdeep; Askew, Shawn D.; Brewer, John; Peppers, John; Koo, Daewon; Goncalves, Clebson Gomes
Author Affiliation:Godara: Presenting Author and Virginia Tech; Askew, Brewer, Peppers and Koo: Virginia Tech; Goncalves, Clebson Gomes
Title:Multi-year evaluation of bermudagrass control on creeping bentgrass fairways from herbicides and mechanical slicing
Section:Turfgrass pest management poster: Diseases, insects, weeds 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. 143392.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"Bermudagrass (Cynodon dactylon L. Pers.) is one of the most troublesome weed species in creeping bentgrass (Agrostis stolonifera L.) throughout the United States transition zone. Aggressive stolon and rhizome development, along with tolerance of bermudagrass to standard herbicides utilized for weed control in creeping bentgrass, increase the likelihood of bermudagrass invasion. By exploiting winter stress, properly timed physical damage may maximize bermudagrass control. Previous research reported that topramezone-based herbicide programs have successfully controlled bermudagrass in cool-season turfgrass. Our preliminary research demonstrated that fall/winter mechanical slicing reduced bermudagrass stand density while having minimal impact on that of creeping bentgrass. So, additional field experiments were conducted at Roanoke, VA, from September 2018 to September 2020 to compare topramezone-based herbicide programs alone or combined with mechanical slicing for bermudagrass control in a creeping bentgrass fairway. The experiment was a randomized complete block design with four replications. Treatments included a nontreated control, mechanical slicing, topramezone plus triclopyr applied at 6.4 and 26 g ai ha-1, respectively, and a combination of mechanical slicing and topramezone plus triclopyr applied at the same rates. A total of six applications per year of herbicides and slicing were made, with herbicide applications split equally between fall and spring and slicing initiated in fall and continuing at 4-wk intervals into winter. Final bermudagrass cover after two years of herbicide plus slicing was 18% representing 75% control and not different from herbicide without slicing. Bermudagrass area under the cover progress curve per day was 40% over the two-year period in nontreated turf compared to 15% in herbicide-treated plots. Topramezone plus triclopyr programs significantly increased creeping bentgrass coverage and reduced bermudagrass coverage. Although slicing significantly decreased bermudagrass cover below that of herbicide alone on a few selected evaluation dates, rapid bermudagrass recovery may have reduced its overall effectiveness in these studies."
This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Godara, N., S. D. Askew, J. Brewer, J. Peppers, D. Koo, and C. G. Goncalves. 2022. Multi-year evaluation of bermudagrass control on creeping bentgrass fairways from herbicides and mechanical slicing. Agron. Abr. p. 143392.
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