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| Web URL(s): | http://www.newss.org/proceedings/proceedings_1998_vol52.pdf#page=74
Last checked: 07/24/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Watschke, T. L.;
Borger, J. A. |
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| Author Affiliation: | Professor and Research Assistant, Department of Agronomy, Penn State University, University Park, PA 16802. |
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| Title: | Control of smooth crabgrass and phytotoxicity of siduron and bensulide |
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| Section: | Turfgrass and plant growth regulators Wednesday-January 7, 1998
Other records with the "Turfgrass and plant growth regulators Wednesday-January 7, 1998" Section
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| Meeting Info.: | Washington, DC: January 5-8, 1998 |
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| Source: | Proceedings of the 52nd Annual Meeting of the Northeastern Weed Science Society. Vol. 52, 1998, p. 74. |
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| Publishing Information: | College Park, MD: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Bensulide; Crabgrass control; Digitaria ischaemum; Herbicide efficacy; Herbicide evaluation; Phytotoxicity; Siduron
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| Abstract/Contents: | "A study was conducted at the Landscape Management Research Center, The Pennsylvania Sate University, University Park, PA to assess the seedbed control of smooth crabgrass using different dates [rates] of siduron. The seedbed was fertilized with a starter fertilizer at a rate that provided 20 lbs P₂O₅/M. An 80/20 mixture of Kentucky Bluegrass (Poa pratensis L.) and perennial ryegrass (Lolium perenne L.) was seeded at 4 lbs/M. On May 18, 1997, siduron was applied at rates of 6, 4.5, and 3 lbs ai/A using a five foot CO₂ powered boom spray with three flat fan 11004 LP nozzles calibrated to deliver 80 gpa at 25 psi. The two higher rates provided significantly better control than the lowest rate when rated on June 30, 1997. However, the lowest rate still provided 90% control. When the desired turf was rated for stand density on the same day, the highest rate had a 25% stand reduction compared to rate [the] lowest rate, which has no stand reduction. It appears that excellent control of smooth crabgrass can be attained in a seeding of Kentucky bluegrass/perennial ryegrass mixture at a low rate of siduron with out [without] reducing stand density. Three additional studies were conducted at the Valentine Turfgrass Research Center, University Park, PA. These studies were conducted to screen the phytotoxicity potential of various rates of siduron on 'Cato', 'DF 1', 'Penncross', 'Penneagle','Pennlinks', and 'Seaside', creeping bentgrass (Agrostis stolonifera) and of bensulide on the last five varieties listed. The rates and application dates of the siduron were: 12 and 24 lbs ai/A applied on May 3, 1997. The rates and dates of application of bensulide were: 10, 7.5, and 7.5 lbs ai/A on May 3, 30, and August 29 respectfully [respectively] to DF-1. In addition to the above bensulide treatments, on Penncross, Penneagle, Pennlinks, and Seaside, rates of 20, 15, and 15 lbs ai/A were applied on May 3, 10, amd on August 29, 1997. Phytotoxicity was rated weekly from May 6 until September, every two weeks in October and November, and in the spring (April and May) of 1997. At no time was phytotoxicity observed." |
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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):
Watschke, T. L., and J. A. Borger. 1998. Control of smooth crabgrass and phytotoxicity of siduron and bensulide. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 52:p. 74. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_1998_vol52.pdf#page=74
Last checked: 07/24/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: SB 610 .N62 v. 52 |
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