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Web URL(s):https://journals.ashs.org/hortsci/view/journals/hortsci/43/7/article-p2186.xml?rskey=9BlgIQ
    Last checked: 11/21/2019
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Author(s):Dernoeden, Peter H.; McDonald, Steven J.; Kaminski, John E.
Author Affiliation:Dernoeden and McDonald: Department of Plant Science and Landscape Architecture, University of Maryland, College Park, Maryland; Kaminski: Department of Plant Science, University of Connecticut, Storrs, Connecticut
Title:Creeping bentgrass and perennial ryegrass seedling tolerance to bispyribac-sodium
Section:Turf management
Other records with the "Turf management" Section
Source:HortScience. Vol. 43, No. 7, December 2008, p. 2186-2190.
# of Pages:5
Publishing Information:Alexandria, VA: American Society for Horticultural Science
Keywords:TIC Keywords: Agrostis stolonifera; Lolium perenne; Bispyribac-sodium; Herbicide application; Herbicide safety; Ethofumesate; Seedling emergence; Phytotoxicity
Abstract/Contents:"Establishing creeping bentgrass [Agrostis stolonifera L. (CBG)] and perennial ryegrass [Lolium perenne L. (PRG)] from seed can be hampered by competition from annual bluegrass (Poa annua L.). Bispyribac-sodium (BPS) is a postemergence annual bluegrass herbicide that may have applications for use when establishing these grasses. This field study was undertaken to determine if BPS could be applied safely to CBG and PRG seedlings. Ethofumesate (ETHO) was applied sequentially (840 + 840 g路ha-1 a.i.) and served as a standard. In 2004, BPS was applied once (49, 74, 111, and 148 g路ha-1 a.i.) or sequentially (49 + 49 and 74 + 74 g路ha-1 a.i.) to CBG and PRG seedlings 4 weeks after emergence in Maryland. In 2004, BPS discolored CBG and PRG and reduced PRG cover, whereas ETHO reduced CBG cover but was not injurious to PRG. In 2005, a single (148 g路ha-1 a.i.) and sequential (25 + 25, 49 + 49 and 74 + 74 g路ha-1 a.i.) applications of BPS were made to CBG and PRG 2 and 4 weeks after seedling emergence (WASE) in Maryland and Connecticut. Treatments applied 2 WASE generally resulted in more injury when compared with applications made 4 WASE. In Maryland in 2005, CBG only sustained long-term loss of cover when treated 2 WASE with 148 g路ha-1 a.i. of BPS. The PRG was more sensitive to BPS and 148 g路ha-1 a.i. applied once and sequential treatments 49 g路ha-1 a.i. or greater applied 2 and 4 WASE generally caused the greatest loss in PRG cover. Conversely, CBG was severely injured by all BPS treatments and ETHO in Connecticut. In PRG, only 25 + 25 g路ha-1 a.i. of BPS and ETHO in both timings did not cause a loss in cover in Connecticut or Maryland. High levels of precipitation and probably other unknown factors may have enhanced the phytotoxicity observed in Connecticut. Ethofumesate generally was safer than BPS for use on PRG seedlings."
Reprint appears in University of Connecticut College of Agriculture & Natural Resources 2008 Turfgrass Research Report, 2009, p. 104, http://www.turf.uconn.edu/pdf/research/reports/2008.pdf#pa> >ge=106 |d 06/08/2009 |f Adobe Acrobat |n Document is within a single large file
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Dernoeden, P. H., S. J. McDonald, and J. E. Kaminski. 2008. Creeping bentgrass and perennial ryegrass seedling tolerance to bispyribac-sodium. HortScience. 43(7):p. 2186-2190.
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DOI: 10.21273/HORTSCI.43.7.2186
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    Last checked: 11/21/2019
    Requires: PDF Reader
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