TITLE

Long-Term Roughstalk Bluegrass Control in Creeping Bentgrass Fairways

AUTHOR(S)
Rana, Sandeep S.; Askew, Shawn D.
PUB. DATE
October 2017
SOURCE
Weed Technology;Oct2017, Vol. 31 Issue 5, p714
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Methiozolin is an isoxazoline herbicide that selectively controls annual bluegrass in cool-season turf and may control roughstalk bluegrass, another weedy Poa species that is problematic in many turfgrass systems. However, the majority of research to date is limited to evaluating methiozolin efficacy for annual bluegrass control in creeping bentgrass putting greens. Research was conducted comparing various application regimes of methiozolin and other herbicides for long-term roughstalk bluegrass control in creeping bentgrass golf fairways. Methiozolin-only treatments did not injure creeping bentgrass or reduce normalized difference vegetative index (NDVI) at 2 golf course locations based on 20 evaluation dates over a 2.5-yr period. The 2.5-yr average turf quality generally declined as roughstalk bluegrass control increased due to transient turf cover loss. At 1 yr after last treatment, methiozolin at 1500 g ai ha-1 applied four times in fall reduced roughstalk bluegrass cover 85%. This was equivalent to methiozolin at 1000 g ha-1 applied four times in fall, but greater than low rates of methiozolin applied four times in spring or twice in fall and spring. Amicarbazone, primisulfuron, and bispyribac-sodium alone either did not effectively reduce roughstalk bluegrass cover, or did so at the expense of increased creeping bentgrass injury. Results of this study suggest that methiozolin alone or tank-mixed with amicarbazone or primisulfuron is an effective long-term approach for selectively controlling roughstalk bluegrass in creeping bentgrass. Nomenclature: Amicarbazone; bispyribac-sodium; methiozolin; 5-(2,6-difluorobenzyl)oxymethyl-5-methyl-3-(3-methylthiophen-2-yl)-1; 2-isoxazoline; code names: EK-5229, SJK-03, and MRC-01, prmisulfuron, annual bluegrass, Poa annua L.; roughstalk bluegrass, Poa trivialis L.; creeping bentgrass, Agrostis stolonifera L.
ACCESSION #
126236757

 

Related Articles

  • Postemergence Control of Annual Bluegrass (Poa annua spp. reptans) in Creeping Bentgrass (Agrostis stolonifera) Turf. Woosley, Paul B.; Williams, David W.; Powell Jr., A. J. // Weed Technology;Oct-Dec2003, Vol. 17 Issue 4, p770 

    The postemergence herbicide ethofumesate and the plant growth regulator paclobutrazol were evaluated for annual bluegrass control in creeping bentgrass turf managed as golf fairways. Both products were applied under several different timing regimes relative to the time of the year. Paclobutrazol...

  • Seasonal Effects on Annual Bluegrass (Poa annua) Control in Creeping Bentgrass with Bispyribac-Sodium. Lycan, Darren W.; Hart, Stephen E. // Weed Technology;Jul-Sep2006, Vol. 20 Issue 3, p722 

    Studies were conducted in 2002 and 2003 on a golf course fairway in New Jersey to compare spring, summer, and fall treatments of bispyribac-sodium for annual bluegrass control and creeping bentgrass tolerance. Single applications at 74, 111, or 148 g ai/ha were applied in May, August, or...

  • Control of Silvery-Thread Moss (Bryum argenteum Hedw.) in Creeping Bentgrass (Agrostis palustris Huds.) Putting Greens. Burnell, Keith D.; Yelverton, Fred H.; Neal, Joseph C.; Gannon, Travis W.; McElroy, J. Scott // Weed Technology;Jul-Sep2004, Vol. 18 Issue 3, p560 

    Field experiments were conducted to evaluate chemicals for silvery-thread moss control and bentgrass turfgrass quality. Treatments included iron (Fe)-containing products, nitrogen fertilizers, Ultra Dawn dishwashing detergent (UD) at 3% (v/v), and oxadiazon. In general, greater silvery-thread...

  • Turf Tolerance and Virginia Buttonweed (Diodia virginiana) Control with Fluroxypyr as Influenced by the Synergist Diflufenzopyr. Hanwen Ni; Wehtje, Glenn; Walker, Robert H.; Belcher, Jason L.; Blythe, Eugene K. // Weed Technology;Apr-Jun2006, Vol. 20 Issue 2, p35 

    Virginia buttonweed control in warm-season turfgrass species requires high application rates and/or repeated applications of herbicides (or both) with an auxin-type mode of action. These treatments often lead to unacceptable turfgrass injury. Diflufenzopyr functions as a synergist with...

  • Response of Four Turfgrass Species to Ethofumesate. Meyer, Joseph W.; Branham, Bruce E. // Weed Technology;Jan-Mar2006, Vol. 20 Issue 1, p19 

    Annual bluegrass and roughstalk bluegrass are turfgrasses, but they can also be two of the most serious weed problems in highly maintained turfgrass. Ethofumesate has been used to control annual bluegrass; however, the results have been erratic, and ethofumesate is not widely utilized for annual...

  • Annual Bluegrass (Poa annua) Control in Kentucky Bluegrass (Poa pratensis) with Bispyribac-Sodium, Primisulfuron, and Sulfosulfuron. Hart, Stephen E.; McCullough, Patrick E. // Weed Technology;Jul-Sep2007, Vol. 21 Issue 3, p702 

    Annual bluegrass is a troublesome weed of Kentucky bluegrass because of a lack of selective POST herbicides for control. Field experiments were conducted in New Jersey to investigate the potential of bispyribac-sodium, primisulfuron, and sulfosulfuron for selective annual bluegrass control in...

  • Seedling Emergence and Establishment of Annual Bluegrass ( Poa annua) in Turfgrasses of Traditional and Creeping Perennial Ryegrass Cultivars. Masin, Roberta; Macolino, Stefano // Weed Technology;Jan-Mar2016, Vol. 30 Issue 1, p238 

    Annual bluegrass is a cosmopolitan, cool-season grass that adapts to different environmental conditions. It is one of the main weeds of turfgrass, and its control is mainly achieved through chemical and cultural practices, although little importance is given to the competitive ability of...

  • Are Mixed Turf Populations More Competitive? Eggens, J. L.; Hsiang, T.; Hall, J. C.; Carey, K. // GreenMaster;Dec2005, Vol. 40 Issue 6, p5 

    The article provides information on a research project which determined if a mixture of bentgrass cultivars would compete better than a single cultivar against annual bluegrass invasion. It mentions the reason golf greens have been criticized for being monocultures. The experimental turf used in...

  • Cool-Season Turfgrass Reseeding Intervals for Bispyribac-Sodium. Lycan, Darren W.; Hart, Stephen E. // Weed Technology;Apr-Jun2006, Vol. 20 Issue 2, p9 

    Field studies were conducted in 2002 and 2003 in New Jersey to determine the length of time after a bispyribac-sodium application at which creeping bentgrass, Kentucky bluegrass, and perennial ryegrass can be safely reseeded. Bispyribac at 148 or 296 g ai/ha was applied 6, 4, 2, or 1 week before...

  • Selective Creeping Bentgrass (Agrostis stolonifera) Control in Cool-Season Turfgrass. Beam, Josh B.; Barker, Whitnee L.; Askew, Shawn D. // Weed Technology;Apr-Jun2006, Vol. 20 Issue 2, p33 

    Creeping bentgrass infestations in cool-season turfgrass are unsightly and difficult to control. Field tests were conducted at Stoney Creek Golf Course in Wintergreen, VA, in 2002 and 2003 on a Kentucky bluegrass rough and at the Turfgrass Research Center in Blacksburg, VA, in 2003 on a...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics