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| Web URL(s): | https://scisoc.confex.com/scisoc/2021am/meetingapp.cgi/Paper/134184
Last checked: 03/29/2022
Requires: JavaScript |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Doherty, Joseph;
Roberts, Joseph |
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| Author Affiliation: | Doherty: Plant Science and Landscape Architecture, University of Maryland, College Park, MD; Roberts: Clemson University, Florence, SC |
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| Title: | Managing foliar pathogens with compost topdressing and biological control organisms |
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| Section: | Turfgrass pest management oral II: Diseases (includes student competition)
Other records with the "Turfgrass pest management oral II: Diseases (includes student competition)" Section
C05 turfgrass science
Other records with the "C05 turfgrass science" Section
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| Meeting Info.: | Salt Lake City, Utah: November 7-10, 2021 |
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| Source: | ASA, CSSA and SSSA International Annual Meetings. 2021, p. 134184. |
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| Publishing Information: | [Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America] |
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| # of Pages: | 1 |
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| Abstract/Contents: | "Composts and biological control organisms (BCOs) are touted as methods to reduce disease severity in the absence of synthetic fungicides. However, neither provides control on their own to the same degree as synthetic fungicides. A multi-year field study was established on a creeping bentgrass (Agrostis stolonifera L. cv. "007") fairway to evaluate combinations of compost topdressing and BCO applications for improved BCO establishment and suppression of foliar pathogens. A split-plot design evaluated main plots [i.e., biochar+compost topdressing (MG) vs none] arranged in a randomized complete block design with subplots [BCO application intervals (Bacillus subtilis QST713 14 d, 7 d, and none)]. Turfgrass quality and disease severity were rated every 7 - 14 d throughout the growing season and summarized as area under the progress curve values for analysis. Foliage samples were collected monthly to monitor BCO populations utilizing an established qPCR assay. There was no interaction between MD and BCO applications, but individual treatments provided measurable benefits that the other did not. Monthly MG topdressing improved turfgrass quality in both years of the study. Additionally, monthly MG topdressing reduced brown patch severity in 2020 and dollar spot severity in 2021. Weekly BCO applications reduced copper spot compared to the non-treated control, which coincided with the highest BCO population levels measured in the qPCR analysis. These data highlight the need to use multiple approaches when managing diseases in the absence of synthetic fungicides. Furthermore, BCO applications need to be made frequently (i.e., 7 d intervals) to have the best chance for success." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
"117-8" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Doherty, J., and J. Roberts. 2021. Managing foliar pathogens with compost topdressing and biological control organisms. Agron. Abr. p. 134184. |
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Last checked: 03/29/2022
Requires: JavaScript |
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