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| Web URL(s): | http://www.newss.org/proceedings/proceedings_1999_vol53.pdf#page=60
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: | Watschke: Professor, Department of Agronomy, Penn State University, University Park, PA; Borger: Research Assistant, Department of Agronomy, Penn State University, University Park, PA |
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| Title: | Pre/post crabgrass control at two stages of growth in 1998 |
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| Meeting Info.: | Cambridge, MA: January 4-7, 1999 |
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| Source: | Proceedings of the 53rd Annual Meeting of the Northeastern Weed Science Society. Vol. 53, 1999, p. 60. |
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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: Digitaria ischaemum; Crabgrass control; Weed control; Growth stages; Poa pratensis; Herbicides; Herbicide evaluation; Tillers (vegetative); Tank mix; Dithiopyr; Fenoxaprop-ethyl; Pendimethalin; MSMA; Application rates
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| Cultivar Names: | Midnight |
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| Abstract/Contents: | "Two experiments were conducted in 1998 to evaluate the control of smooth crabgrass after emergence into a mature Midnight Kentucky bluegrass stand (Poa pratensis L.) maintained at 7/8 inches using a triplex reel mower. The objective of the experiment was to assess efficacy of selected herbicides at two stages of crabgrass growth (prior to and after tillering). Treatments in the pre-tillering experiment were applied on June 16, 1998, with the MSMA treatment being reapplied on June 29, 1998. Treatments were applied using a three ft. hand held CO₂ powered boom sprayer with two 6504 flat fan nozzles calibrated to deliver 40 gpa at 30 psi. Only the dithiopyr 1EC plus fenoxaprop extra 0.57EW at 0.5 lb ai/A and 0.09 lb ai/A, respectively, exceeded the level of acceptability of 85% control (92%). The remaining treatments that fell below the level of acceptability were pendimethalin plus fenoxaprop 3.09EC at 1.54 lb ai/A (80%) and 2.06 lb ai/A (82%), fenoxaprop extra 0.57EW at 0.06 lb ai/A (53%) and 0.09 lb ai/A (73%), dithiopyr 1EC at 0.25 lb ai/A (82%) and 0.5 lb ai/A (73%), dithiopyr 0.25G at 0.25 lb ai/A (67%) and 0.5 lb ai/A (82%), MSMA 6L (2 applications at 2.0 lb ai/A) (67%), fenoxaprop 1EC at 0.12 lb ai/A (58%). The treatments in the experiment conducted on tillering crabgrass were applied on July 8, 1998, with the same methodology as the prior experiment. Fenoxaprop 1EC at 0.18 lb ai/A was the only treatment that met or exceeded the 85% level of acceptability (90%). The other treatments in the experiment were pendimethalin plus fenoxaprop 3.09EC at 2.06 lb ai/A (58%) and 3.09 lb ai/A (80%), fenoxaprop extra 0.57EW at 0.06 lb ai/A (65%) and 0.09 lb ai/A (70%), and 0.12 lb ai/A (78%) and 0.18 lb ai/A (78%)." |
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| Language: | English |
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| References: | 0 |
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| See Also: | Other items relating to: M S M A |
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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. 1999. Pre/post crabgrass control at two stages of growth in 1998. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 53:p. 60. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_1999_vol53.pdf#page=60
Last checked: 07/24/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 610 .N62 v. 53 |
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