Full TGIF Record # 68498
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Web URL(s):http://www.newss.org/proceedings/proceedings_1999_vol53.pdf#page=104
    Last checked: 07/24/2013
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Publication Type:
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Report
Content Type:Abstract or Summary only
Author(s):Yelverton, F. H.; Isgrigg, J. III; Hinton, J.
Author Affiliation:Yelverton: Associate Professor, Crop Science Department, North Carolina State University, Raleigh, NC; Isgrigg: Research Assistant, Crop Science Department, North Carolina State University, Raleigh, NC; Hinton: Research Technologist, Crop Science Department, North Carolina State University, Raleigh, NC
Title:Management of silvery thread moss (Bryum argenteum) in bentgrass greens
Meeting Info.:Cambridge, MA: January 4-7, 1999
Source:Proceedings of the 53rd Annual Meeting of the Northeastern Weed Science Society. Vol. 53, 1999, p. 104.
Publishing Information:College Park, MD: Northeastern Weed Science Society
# of Pages:1
Keywords:TIC Keywords: Bryum argenteum; Mosses; Moss control; Golf courses; Golf greens; Agrostis stolonifera; Fungicides; Fungicide evaluation; Iron; Soaps; Oxadiazon
Abstract/Contents:"Silvery thread moss problems in creeping bentgrass (Agrostis palustris Huds.) putting greens are becoming more of a problem in the US. There are over 9,500 species of mosses, but the predominant species found in bentgrass greens is silvery thread moss. Optimum moss habitats have traditionally been thought to be moist, shady sites with high soil acidity. The presence of these lower plants in bentgrass greens remains somewhat of a mystery. However, moss invasion is usually worse in areas of the putting surface that tend to get scalped. Therefore, it is logical to think that a gradual trend to lower mowing heights may be playing a vital role in the increase of moss in bentgrass putting greens. Recent changes in fungicide use may also have contributed to more moss. The increase in moss populations has coincided with discontinued use of mercury-based fungicides. Trials were initiated at two golf courses in western NC with high moss populations in bentgrass greens. Treatments included experimental iron formulations (0-0-0-30% Fe, 4-0-0-18% Fe, 0-0-0-40% Fe, and 6-0-0-11% Fe), Ultra Dawn dishwashing soap (3.2% v/v solution), the mercury-based fungicide PMAS (30 ml/100 mĀ²), ammonium sulfate (1 kg product/100 mĀ²), and the same treatments applied in combination with 1.7 kg ai/ha of oxidation. PMAS applied 3 times at 1 wk intervals provided 91% control of silvery thread moss 3 wk after initial application (WAIT) but control dropped to 53% 8 WAIT. Ultra Dawn applied 3 times at 1 wk intervals provided 45% and 26% control 3 and 8 WAIT, respectively. The experimental Fe formulations provided varying levels of moss control. The 4-0-0-18% Fe formulation provided the most suppression. Two applications at 4 wk intervals provided 78% and 85% suppression 3 WAIT at two locations. Control 8 WAIT at each location was 26% and 94% respectively. application of 1.7 kg ai/ha of oxidiazon generally enhanced moss control. The addition of oxidiazon with the iron formulations enhanced control for all formulations to >74% control at one location and >55% control at other location 8 WAIT. The addition of oxadiazon with 2 applications of 4-0-0-18% Fe provided 88% control of moss at both locations 8 WAIT. It appeared that enhanced control with this iron formulation was due in part to bentgrass growth stimulation with nitrogen."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Yelverton, F. H., J. III Isgrigg, and J. Hinton. 1999. Management of silvery thread moss (Bryum argenteum) in bentgrass greens. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 53:p. 104.
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http://www.newss.org/proceedings/proceedings_1999_vol53.pdf#page=104
    Last checked: 07/24/2013
    Requires: PDF Reader
    Notes: Item is within a single large file
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