Full TGIF Record # 174050
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Web URL(s):https://archive.lib.msu.edu/tic/gcman/article/2010dec72.pdf
    Last checked: 01/19/2011
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Publication Type:
Author(s):McElroy, Scott
Author Affiliation:Associate Professor, Turfgrass and Weed Science, Auburn University, Auburn, Ala.
Title:Poa annua control in overseeded perennial ryegrass: Applying the right combination of products at the right time can greatly reduce Poa annua in overseeded bermudagrass
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Source:Golf Course Management. Vol. 78, No. 12, December 2010, p. 72-75.
# of Pages:4
Publishing Information:Lawrence, KS: Golf Course Superintendents Association of America
Keywords:TIC Keywords: Application methods; Bispyribac-sodium; Cynodon; Encroachment; Ethofumesate; Foramsulfuron; Growth habit; Lolium perenne; Overseeding; Poa annua; Poa annua control; Postemergence herbicides; Preemergence herbicides; Seedhead inhibition; Turfgrass profile
Trade Names:Revolver; Prograss; Velocity
Abstract/Contents:Discusses the relationships of application timing and mixtures to the reduction of Poa annua incidence in overseeded bermudagrass and ryegrass. Highlights the adaptability of Poa, noting that "this species has been found on every continent - yes, even Antarctica. Such genetic plasticity allows it to thwart our control efforts seemingly from one year to the next." Suggests that "using pre-emergence herbicides before overseeding requires planning because overseeding must take place about eight weeks after the pre-emergents have been applied." Identifies potentially effective strategies for applying the post-emergence herbicides Velocity and Prograss on overseeded perennial ryegrass. Presents research conducted during 2006 and 2007 in Tennessee to determine means of reducing the severity of Poa infestations. Details methods and materials used during the experiments, stating that "research was conducted on a simulated golf course fairway of Riviera bermudagrass...mowed at 0.5 inch. Soil type was a Sequatchie loam (fine-loamy, siliceous, semi-active, thermic Humic Hapludults)." Reports that "Velocity was the only treatment to injure perennial ryegrass at any time and resulted in approximately 35% [percent] injury at three weeks after either one or two applications." Provides a chart detailing "final Poa annua control and seedhead reduction" both before and after overseeding. Concludes that "single applications of Revolver applied before overseeding or Prograss or Velocity applied after overseeding did not achieve acceptable P. annua control. However, combining Revolver with Prograss or Velocity greatly improved control."
Note:Pictures, color
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
McElroy, S. 2010. Poa annua control in overseeded perennial ryegrass: Applying the right combination of products at the right time can greatly reduce Poa annua in overseeded bermudagrass. Golf Course Manage. 78(12):p. 72-75.
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    Last checked: 01/19/2011
    Requires: PDF Reader
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