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| Web URL(s): | http://a-c-s.confex.com/crops/2010am/webprogram/Paper61039.html
Last checked: 10/19/2010
Notes: Abstract only |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Inguagiato, John;
Kaminski, John |
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| Author Affiliation: | Inguagiato: University of Connecticut, Storrs, CT; Kaminski: Pennsylvania State University, University Park, PA |
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| Title: | Rate response and comparison of phosphonate materials on algae development in putting green turf |
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| Section: | Turfgrass pest management
Other records with the "Turfgrass pest management" Section
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| Meeting Info.: | Long Beach, CA: October 31 - November 4, 2010 |
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| Source: | 2010 International Annual Meetings: [Abstracts][ASA-CSSA-SSSA]. 2010, p. 61039. |
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| Publishing Information: | [Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Algae; Algae control; Application rates; Golf greens; Mowing height; Phosphates; Phosphoric acid; Phosphorus
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| Cultivar Names: | L-93 |
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| Abstract/Contents: | "Algae infestations in putting green turf often require repeat fungicide applications to control. A two year field study was initiated in 2009 on 'L-93' creeping bentgrass (Agrostis stolonifera) turf in Storrs, CT to identify alternative options for algae control. Turf was maintained at 4.0 mm and 3.3 mm in 2009 and 2010, respectively. The area was lightly irrigated two to three times day-1 from July through September each year and periodically covered with shade cloth in 2010 to encourage algae development. Phosphonate materials and application rate were evaluated as a 4 by 6 factorial within a randomized complete block design with four blocks. Phosphonate materials included a phosphite fungicide, phosphite fertilizer, and H3PO3/KOH, each containing mono- and di-potassium salts of phosphorous acid, and H3PO4/KOH as a phosphorous control. Phosphorous acid and phosphoric acid (H3POx/KOH) were applied at 2.69, 5.43, 8.15, 10.86, 13.58, and 16.29 kg ha-1 every 14 days from 16 Jun to 24 Sep 2009 and 20 May to 31 Aug 2010. Algae development was limited in 2009, but turf treated with phosphite containing materials had less algae than H3PO4/KOH treated turf on 1 Oct. Phosphite treated turf had 3.6 to 20.8% less algae than H3PO4/KOH treated turf in June and July 2010 under increased pressure. Turf treated with 5.43 to 13.58 kg ha-1 H3POx/KOH had less algae than turf treated with 2.69 kg ha-1 H3POx/KOH regardless of source in October 2009. However, algae development decreased with increasing H3POx/KOH application rate regardless of source by July 2010. These data suggest that preventive phosphite applications can be effectively used to manage algae on putting green turf, regardless of formulation." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Inguagiato, J., and J. Kaminski. 2010. Rate response and comparison of phosphonate materials on algae development in putting green turf. Int. Ann. Meet. p. 61039. |
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| Web URL(s):
http://a-c-s.confex.com/crops/2010am/webprogram/Paper61039.html
Last checked: 10/19/2010
Notes: Abstract only |
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