Full TGIF Record # 333513
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Web URL(s):https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/149798
    Last checked: 12/06/2023
Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Zhang, Pingyuan; Crowell, Chase R.; Murphy, James A.; Inguagiato, John C.
Author Affiliation:Zhang: Presenting Author and Department of Plant Biology, Rutgers University, New Brunswick, NJ; Crowell: Department of Plant Science and Landscape Architecture, University of Connecticut, Storrs, CT; Murphy: Department of Plant Biology, Rutgers University, New Brunswick, NJ; Inguagiato: Department of Plant Science & Landscape Architecture, University of Connecticut, Storrs, CT
Title:Hollow tine cultivation effect on dollar spot of creeping bentgrass
Section:377
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C05 turfgrass science
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Meeting Info.:St. Louis, Missouri: October 29-November 1, 2023
Source:ASA, CSSA, SSSA International Annual Meeting. 2023, p. 149798.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"Coring cultivation and topdressing are routine practices on golf courses used to manage thatch, largely by dilution with soil re-incorporation. Our hypothesis was that modifying the thatch and lower canopy to be more soil-like may reduce dollar spot severity. Two cultivation treatments were evaluated at two sites (North Brunswick, NJ and Storrs, CT) on creeping bentgrass managed as fairway turf for effects on the development of dollar spot. Cultivation treatments included an untreated control (UTC) and hollow tine cultivation. Soil brought to the surface with hollow tine cultivation was immediately re-incorporation with brushing. Hollow tine cultivation was applied during spring when the soil temperature (daily average) at the 5-cm depth reached 10 Ā°C for 3 consecutive days during 2021, 2022, and 2023; fall treatments occurred early- to mid-October. Six cultivation treatments were applied to date. Disease severity was measured as the number of dollar spot infection foci per plot every 7 to 28 days from the disease onset until August. Clarireedia jacksonii (dollar spot pathogen) inoculum concentration in leaf tissue and the thatch organic matter concentration were measured in 2023 prior to dollar spot symptom development. The suppression of dollar spot development in hollow tine plots was greater in subsequent years at the CT site, suggesting a cumulative effect likely associated with an increasing modification of the thatch and lower canopy. A significant reduction in disease from hollow tine treatment at the NJ site was only observed during 2022. Organic matter concentration was significantly diluted in thatch-mat layer measured in 2023 at both sites, suggesting cultivation treatments modified the surface and canopy properties. The C. jacksonii inoculum concentration measured after the fifth hollow tine treatment indicated a lower pathogen load heading into the third season compared to the UTC in NJ and CT., with a greater reduction observed in CT."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Zhang, P., C. R. Crowell, J. A. Murphy, and J. C. Inguagiato. 2023. Hollow tine cultivation effect on dollar spot of creeping bentgrass. Agron. Abr. p. 149798.
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https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/149798
    Last checked: 12/06/2023
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