Abstract:A 2-yr field experiment was conducted at three locations across Tennessee during 2017-2018 to determine if early-postemergence (EPOST) applications of FreeHand [pendimethalin (3,4-dimethyl-2,6-control annual bluegrass (Poa annua L.)(ABG) similar to Kerb SC [pronamide (3,benzamide)] and 3,]. Across all locations and years, EPOST applications of FreeHand at 200 lb acre -1 controlled ABG by 88 to 100% 23 wk after the initial treatment, more than or equal to Kerb SC and Princep. Follow-up research was conducted in… Show more
“…Work by Carroll et al. (2020) determined that early post‐emergence applications of FreeHand (pendimethalin + dimethenamid) could be used in a herbicide program to help prevent the development of herbicide‐resistant annual bluegrass populations. Regarding controlling annual bluegrass with mechanical methods, Carroll, Brosnan, Unruh, et al.…”
Section: Resultsmentioning
confidence: 99%
“…and McCurdy et al (2023) has identified several instances of annual bluegrass herbicide resistance and provided alternative chemistries. Work byCarroll et al (2020) determined that early post-emergence applications of FreeHand (pendimethalin + dimethenamid) could be used in a herbicide program to help prevent the development of herbicideresistant annual bluegrass populations. Regarding controlling annual bluegrass with mechanical methods,Carroll, Brosnan, Unruh, et al (2021) andBrosnan et al (2020) found that fraise mowing was an effective method at reducing annual bluegrass populations in hybrid bermudagrass [Cynodon dactylon (L.) Pers.…”
mentioning
confidence: 99%
“…),Carroll, Brosnan, Unruh, et al (2021), Carroll, Brosnan, McCurdy, et al (2021), Carroll, Brosnan, Trigiano, et al (2021,Carroll et al (2020), andMcCurdy (2019). Additionally, work produced by McCurdy et al…”
Controlling unwanted annual bluegrass (Poa annua L.) in desirable turfgrass species often relies heavily on herbicide use. As a result, increasing populations of herbicide‐resistant annual bluegrass have become a concern. In 2018, a university research and extension initiative began addressing the increasing herbicide resistant annual bluegrass epidemic. Preliminary findings produced by this research initiative were presented to golf course employees at the 2022 Golf Course Superintendents Association of American (GCSAA) Educational Conference in San Diego, CA. Findings were presented by a panel of scientists working on various annual bluegrass research sub‐objectives. A survey was designed to match the sub‐objectives within this panel presentation and determine what recommendations the attendees were most likely to use. The survey also identified environmental zones where participants originated and what turfgrass species they are managing in various areas of the golf course. The goal of sharing these survey findings is to assist turfgrass extension specialists and managers interested in designing annual bluegrass management programs that match stakeholder needs. Survey results determined that extension material pertaining to controlling annual bluegrass with cultural practices would interest the largest stakeholder cross section regardless of environmental turfgrass zone. Another major topic was annual bluegrass emergence patterns for herbicide timing, which was the most important or interesting topic for golf course employees in the warm‐season turfgrass environmental zone.This article is protected by copyright. All rights reserved
“…Work by Carroll et al. (2020) determined that early post‐emergence applications of FreeHand (pendimethalin + dimethenamid) could be used in a herbicide program to help prevent the development of herbicide‐resistant annual bluegrass populations. Regarding controlling annual bluegrass with mechanical methods, Carroll, Brosnan, Unruh, et al.…”
Section: Resultsmentioning
confidence: 99%
“…and McCurdy et al (2023) has identified several instances of annual bluegrass herbicide resistance and provided alternative chemistries. Work byCarroll et al (2020) determined that early post-emergence applications of FreeHand (pendimethalin + dimethenamid) could be used in a herbicide program to help prevent the development of herbicideresistant annual bluegrass populations. Regarding controlling annual bluegrass with mechanical methods,Carroll, Brosnan, Unruh, et al (2021) andBrosnan et al (2020) found that fraise mowing was an effective method at reducing annual bluegrass populations in hybrid bermudagrass [Cynodon dactylon (L.) Pers.…”
mentioning
confidence: 99%
“…),Carroll, Brosnan, Unruh, et al (2021), Carroll, Brosnan, McCurdy, et al (2021), Carroll, Brosnan, Trigiano, et al (2021,Carroll et al (2020), andMcCurdy (2019). Additionally, work produced by McCurdy et al…”
Controlling unwanted annual bluegrass (Poa annua L.) in desirable turfgrass species often relies heavily on herbicide use. As a result, increasing populations of herbicide‐resistant annual bluegrass have become a concern. In 2018, a university research and extension initiative began addressing the increasing herbicide resistant annual bluegrass epidemic. Preliminary findings produced by this research initiative were presented to golf course employees at the 2022 Golf Course Superintendents Association of American (GCSAA) Educational Conference in San Diego, CA. Findings were presented by a panel of scientists working on various annual bluegrass research sub‐objectives. A survey was designed to match the sub‐objectives within this panel presentation and determine what recommendations the attendees were most likely to use. The survey also identified environmental zones where participants originated and what turfgrass species they are managing in various areas of the golf course. The goal of sharing these survey findings is to assist turfgrass extension specialists and managers interested in designing annual bluegrass management programs that match stakeholder needs. Survey results determined that extension material pertaining to controlling annual bluegrass with cultural practices would interest the largest stakeholder cross section regardless of environmental turfgrass zone. Another major topic was annual bluegrass emergence patterns for herbicide timing, which was the most important or interesting topic for golf course employees in the warm‐season turfgrass environmental zone.This article is protected by copyright. All rights reserved
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