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| Web URL(s): | http://www.newss.org/proceedings/proceedings_2003_vol57.pdf#page=104
Last checked: 07/23/2013
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.;
Brosnan, J. T. |
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| Author Affiliation: | Penn State University, University Park, Pennsylvania |
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| Title: | Preemergence crabgrass control in 2002 |
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| Section: | Turfgrass and plant growth regulators
Other records with the "Turfgrass and plant growth regulators" Section
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| Meeting Info.: | Hyatt Regency Hotel, Baltimore, MD: January 6-9, 2003 |
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| Source: | Proceedings of the 57th Annual Meeting of the NortheasternWeed Science Society. Vol. 57, 2003, p. 104. |
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| Publishing Information: | Ithaca, NY: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Crabgrass control; Digitaria ischaemum; Herbicide efficacy; Herbicide evaluation; Lolium perenne; Preemergence weed control
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| Cultivar Names: | SR 4200 |
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| Abstract/Contents: | "A preemergence smooth crabgrass (Digitaria ischaemum) control trial was conducted on a mature stand of fairway height `SR 4200' perennial ryegrass (Lolium perenne L.)/Poa annua at the Valentine Turfgrass Research Center, Penn State Univ., University Park, PA. The objective of the study was to determine the efficacy of selected preemergence herbicides for the control of smooth crabgrass in fairway height perennial ryegrass. The study was a randomized complete block design with three replications. Treatments were applied on April 18, 2002 using a three foot CO2 powered boom sprayer calibrated to deliver 80 gpa using two, flat fan, 11004 nozzles at 40 psi. Some treatments were re-applied six weeks later on May 30, 2002. Granular treatments were applied with a shaker jar. After application the entire test site received approximately 1.3 inches of water. On April 18, 2002, 0.5 lb N/M was applied from urea and 0.5 lb N/M from a 31-0-0 IBDU fertilizer to treatments that did not contain any nitrogen as a herbicide carrier. Smooth crabgrass germination was first noted in the test site on April 19, 2002. On April 24, and May 21, 2002 a frost eliminated smooth crabgrass that was present in voids in the test area. Weather data from the Penn State weather station at University Park, PA recorded frost each morning from May 19 through May 22, 2002, inclusive. Smooth crabgrass pressure was rated as being severe in the study site, as infestation in the untreated plots was nearly 100%. Acceptable control was considered for ratings of 85% or greater. In May, some thinning of the annual bluegrass in the study area was observed. Although the amount of thinning was not considered to be of practical significance (33.3% was best), the Pendulum 3.3EC applied at 2 lbs ai/A thinned the annual bluegrass significantly more than any other treatment. None of the mesotrione treatments controlled crabgrass to a commercially acceptable degree. The best crabgrass control (>85%) was provided by an application of Dimension 40WP at 0.25 lbs ai/A followed six weeks later by another 0.25 lbs ai/A, and Dimension 40WP at 0.5 lbs ai/A, while Barricade 65WDG at 0.75 and a Barricade split application at 0.325 lbs ai/A followed by another 0.325 lbs ai/A six weeks later, both provided 83.3% control (very near commercial acceptance). In addition, the Barricade 65WDG at 0.65 lbs ai/A provided control greater than 80%." |
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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., J. A. Borger, and J. T. Brosnan. 2003. Preemergence crabgrass control in 2002. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 57:p. 104. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_2003_vol57.pdf#page=104
Last checked: 07/23/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 610 .N62 v. 57 |
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