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| Web URL(s): | http://www.newss.org/proceedings/proceedings_1998_vol52.pdf#page=67
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: | Preemergence control of smooth crabgrass in 1997 |
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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. 67. |
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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: Crabgrass control; Digitaria ischaemum; Herbicide efficacy; Herbicide evaluation; Preemergence weed control
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| Abstract/Contents: | "A fifty treatment study was conducted at the Landscape Meangement Research Center at The Pennsylvania State University on a mature stand of predominately perennial ryegrass (Lolium perenne L.). The objective of the study was to compare experimental materials with commercial standards for the preemergence control of smooth crabgrass. Treatments were applied on April 21 using a three foot hand held CO₂ powered boom sprayer with two 6504 flat fan nozzles calibrated to deliver 80 gpa at 30 psi. Granular treatments were applied using a shaker jar. Germiniation was first noticed in the study site on May 15, 1997. One [on] June 24, 1997, those treatments that were not applied with fertilizer carrier, were fertilized with 0.9 lbs N/M from a 31-3-10 fertilizer which was subsequently irrigated with approximately 0.5 inches of water. The study area was maintained at 1.25 inches with a triplex reel mower with the clippings returned and irrigation was supplied when needed to prevent wilting. Of the fifty treatments in the study, 20 provided acceptable control (85%) or greater). Two provided outstanding control (97%) pendimethalin applied twice at 1.5 lbs ai/A, and prodiamine applied with a split application (0.5 lbs ai/A initially followed by an additional 0.25 lbs ai/A 8 weeks later). Dithiopyr AD445 applied once at 0.25 lbs ai/A or split into two 0.125 lbs ai/A applications and the EC formulation split at 0.19 lbs ai/A provided better than 90% control. Benefin plus trifluralin provided 90% or better control, regardless whether a split application or single was used as did prodiamine applied using a 0.32 lb ai/A sequential application. Safe N Simple only provided acceptable control when it was combined whith Pendimethalin at a rate of 1 lb ai/A. It appears that much higher rates of Safe N Simple are needed to provide control, however in so doing a relatively high rate of nitrogen would be applied. A slight reduction (10%) of smooth crabgrass was noted in plots receiving fertilizer only." |
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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. Preemergence control of smooth crabgrass in 1997. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 52:p. 67. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_1998_vol52.pdf#page=67
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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