2019
DOI: 10.2134/cftm2018.09.0068
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Long-Term Efficacy of Annual Bluegrass Control Strategies on Golf Course Putting Greens

Abstract: Aerification of golf course putting greens in the summer rather than in the early fall does not decrease annual bluegrass cover.• Monthly applications of iron sulfate were ineffective at reducing annual bluegrass.• Methiozolin, paclobutrazol, or bispyribac-sodium provided the greatest reduction of annual bluegrass when used over multiple years. AbstractAnnual bluegrass (Poa annua L.; ABG) is among the most common weeds of highly maintained turf in the United States. Though many labeled active ingredients exist… Show more

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Cited by 11 publications
(21 citation statements)
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References 27 publications
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“…Previous field studies have shown that 1 yr of similar paclobutrazol regimen eliminated 85% of annual bluegrass on creeping bentgrass fairways (Woosley et al, 2003). The efficacy of sequential paclobutrazol applications for annual bluegrass control is also demonstrated on putting greens through the work of Patton et al (2019) and Reicher and Sousek (2017). In our research, effects of paclobutrazol were less dramatic at Forest Hill than at Hort Farm 2.…”
Section: Crop Sciencesupporting
confidence: 56%
“…Previous field studies have shown that 1 yr of similar paclobutrazol regimen eliminated 85% of annual bluegrass on creeping bentgrass fairways (Woosley et al, 2003). The efficacy of sequential paclobutrazol applications for annual bluegrass control is also demonstrated on putting greens through the work of Patton et al (2019) and Reicher and Sousek (2017). In our research, effects of paclobutrazol were less dramatic at Forest Hill than at Hort Farm 2.…”
Section: Crop Sciencesupporting
confidence: 56%
“…This is somewhat expected because vernalization and photoperiod requirements to initiate ABG flowering are variable across populations and thus are expected to differ across locations (Johnson & White, 1997a, 1997b). The differing level of response to Proxy applications is also not unexpected given the differential responses to herbicides and the growth regulator Trimmit (paclobutrazol) at different locations (Patton et al., 2019; Reicher et al., 2015).…”
Section: Practical Recommendations For Controlling Annual Bluegrass Smentioning
confidence: 99%
“…The efficacy of these active ingredients in regard to annual bluegrass suppression has been previously reported Murphy, 1995, 1996;McCullough et al, 2013;Woosley et al, 2003). However, it has been reported that their efficacy is highly dependent on the environment/location, application rates, and timing (Patton et al, 2019;Reicher et al, 2015). Moreover, the need for the use of long-term sequential application programs was emphasized because reinvasion might occur when treatments cease.…”
mentioning
confidence: 99%
“…Annual bluegrass control in putting greens is currently managed through a combination of proper cultural practices and chemical applications (Flessner et al, 2013;Xiong et al, 2015). Cultural management practices reported to reduce annual bluegrass intrusion in creeping bentgrass putting greens include planting creeping bentgrass cultivars with increased density, clipping removal during annual bluegrass seedhead production, interseeding creeping bentgrass, shade reduction, nitrogen (N) and phosphorus (P) fertilization reduction, top-dressing, drainage improvement, soil moisture reduction, aeration, and thatch control (Baldwin, 1993;Baldwin and Brede, 2011;Gaussoin and Branham, 1989;Patton et al, 2019;Raley et al, 2013;Rossi, 2001). Despite best management practices, annual bluegrass often reinvades or persists due to an exhaustive seed bank in the soil (Adams, 1989;Baldwin, 1993;Rossi, 2001).…”
mentioning
confidence: 99%