Full TGIF Record # 104213
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Web URL(s):http://www.newss.org/proceedings/proceedings_2005.pdf#page=110
    Last checked: 07/22/2013
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Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Watschke, T. L.; Borger, J. A.
Author Affiliation:Penn State University, University Park, PA
Title:Pre and post smooth crabgrass control
Section:Turfgrass and plant growth regulators
Other records with the "Turfgrass and plant growth regulators" Section
Meeting Info.:Capital Hilton, Washington, D.C.: January 3-6, 2005
Source:Proceedings: NortheasternWeed Science Society. Vol. 59, 2005, p. 96.
Publishing Information:Ithaca, NY: Northeastern Weed Science Society
# of Pages:1
Keywords:TIC Keywords: Herbicide combinations; Herbicide evaluation; Preemergence weed control; Postemergence weed control; Digitaria ischaemum; Poa pratensis; Preemergence herbicides; Postemergence herbicides
Cultivar Names:Midnight
Abstract/Contents:"In the first study, preemergence control of smooth crabgrass (Digitaria ischaemum) was evaluated on a mature stand of 'Midnight' Kentucky bluegrass (Poa pratensis), at the Valentine Turfgrass Research Center, Penn State University, University Park, Pa. The objective of the study was to determine the efficacy of selected preemergence herbicides for the control of smooth crabgrass. This study was a randomized complete block design with three replications. All treatments were applied on April 8, 2004 and some treatments were applied on May 7, 2004 using a three foot CO2 powered boom sprayer calibrated to deliver 80 gpa using two, flat fan, 11004 nozzles at 40 psi and a shaker jar. After application the entire test site received approximately 0.5 inch of water. On April 21, 2004, 0.5 lb N/M was applied from urea and 0.5 lb N/M from 31-0-0 IBDU fertilizer was applied to the test site where materials had been applied that did not contain any fertilizer. The site was mowed two times per week with a rotary mower at one inch with clippings returned to the site. Smooth crabgrass germination was first noted in the test site on April 26, 2004. Several materials provided commercially acceptable smooth crabgrass control. The CS formulation and the split application (1.5 plus 1.5 lbs ai/A) of the 3.3EC formulation of Pendulum; the Barricade 65WDG at 0.65, 0.75, and 0.38 plus 0.38 lbs ai/A; the Barricade 4FL at 0.75 and 0.38 plus 0.38 lbs ai/A split; and all Dimension 40WP treatments controlled smooth crabgrass greater than 85 percent. In the second study, pre and post emergence control of smooth crabgrass was evaluated on a mature stand of 'Midnight' Kentucky bluegrass, at the Valentine Turfgrass Research Center, Penn State University, University Park, Pa. The objective of the study was to determine the efficacy of selected preemergence and pre/post combination herbicides for the control of smooth crabgrass. This study was a randomized complete block design with three replications. Treatments were applied on April 8 (PRE), June 3 (1-3 LEAF), and June 30, 2004 (4 WAT) using a three foot CO2 powered boom sprayer calibrated to deliver 80 gpa using two, flat fan, 11004 nozzles at 40 psi. After application the entire test site received approximately 0.5 inch of water. On April 21, 2004, 0.5 lb N/M was applied from urea and 0.5 lb N/M from a 31-0-0 IBDU fertilizer was applied to the test site where materials had been applied that did not contain any fertilizer. The site was mowed two times per week with a rotary mower at one inch with clippings returned to the site. Smooth crabgrass germination was first noted in the test site on April 26, 2004. Acceptable control of smooth crabgrass was provided by Dimension 40WP at 0.5 lb ai/A, and all combinations of Barricade and Mesotrione (except the PRE timing). It appeared that increasing the rate of Mesotrione or increasing the rate and reapplying the combination provided little improvement over a single combination application at the 1 to 3-leaf stage."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Watschke, T. L., and J. A. Borger. 2005. Pre and post smooth crabgrass control. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 59:p. 96.
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Web URL(s):
http://www.newss.org/proceedings/proceedings_2005.pdf#page=110
    Last checked: 07/22/2013
    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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