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| Web URL(s): | http://www.newss.org/proceedings/proceedings_2000_vol54.pdf#page=118
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: | Smooth crabgrass control in 1999 |
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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.: | Baltimore, MD: January 3-6, 2000 |
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| Source: | Proceedings of the 54th Annual Meeting of the Northeastern Weed Science Society. Vol. 54, 2000, p. 118-119. |
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| Publishing Information: | College Park, MD: Northeastern Weed Science Society |
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| # of Pages: | 2 |
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| Keywords: | TIC Keywords: Herbicide evaluation; Digitaria ischaemum; Crabgrass control; Lolium perenne; Preemergence weed control; Postemergence weed control; Prodiamine; Dithiopyr; Application rates; Pendimethalin; Oxadiazon; Fenoxaprop-ethyl; Clopyralid + triclopyr; Quinclorac
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| Abstract/Contents: | "Four studies were conducted on a mature stand of perennial ryegrass at the Landscape Management Research Center, Penn State University, University Park, PA. One of the studies was an evaluation of products for preemergence control of smooth crabgrass, one study was an evaluation for pre-post control, and two studies were conducted for post control of crabgrass in the two to three tiller stage. In the preemergence study, a randomized complete block design was used with three replications. All of the treatments were applied on April 28, 1999 using a three foot CO₂ powered boom sprayer calibrated to deliver 80 gpa using two, flat fan, 6504 nozzles at 40 psi. Granular treatments were applied with a shaker jar. After application the entire test site received approximately 0.5 inch of water. Crabgrass germination was first noted in the test site on May 12, 1999. Non treated checks were rated to have a minimum of 80 percent crabgrass infestation in all replications. The pre-post study, was a randomized complete block design with three replications. All of the treatments were applied on June 18, 1999 using a three foot CO₂ powered boom sprayer calibrated to deliver 40 gpa using two, flat fan, 6504 nozzles at 40 psi. Granular treatments were applied with a shaker jar. The post emergence studies were randomized complete block designs with three replications. All of the treatments were applied on July 19, 1999 using a three foot CO₂ powered boom sprayer calibrated to deliver 40 gpa using two, flat fan, 6504 nozzles at 40 psi. In the preemergence study, most of the herbicides used provided commercially acceptable control (at least 85%). Those providing the best control (at least 95%) were the following: prodiamine 65WDG at 0.5 and 0.65 lbs ai/A, dithiopyr 1EC at 0.38, dithiopyr 40WP at 0.25 and 0.38 lbs ai/A, dithiopyr FG AND445 0.164G at 0.38 lbs ai/A, and XF99007 2.32SC at 0.25 and 0.38 lbs ai/A. Those providing from 90 to 95% control included: prodiamine 65WDG at 0.38 lbs ai/A, AND672-99 at 3.6 lbs product/M, XF99006 2.32SC at 0.25 and 0.38 lbs ai/A, pendimethalin 60WG at 1.5 lbs ai/A, Team Pro 0.86G at 2 lbs ai/A, and dithopyr FG AND445 0.164G. Those materials that did not provide acceptable control were: 011399B, 011399C, 012799E, 012799F, prodiamine at 0.25 lbs ai/A, AND669-99 at 3.6 lbs product/M, AND670-99 at 3.6 lbs product/M, dithiopyr (Crabex) 0.14G at 0.125 lbs ai/A, pendimethalin (Scotts) 0.86G at 1.5 lbs ai/A, oxadiazon 2G at 2.0 lbs ai/A, and Team 0.87G at 2.0 lbs ai/A. In the pre-post study, acceptable postemergence control of smooth crabgrass was attained by applications of the following herbicides: Drive 75DF at 0.75 lbs ai/A with 1% v/v MSO, Drive 75DF at 0.75 lbs ai/A plus 0.375 lbs ai/A of Dimension and MSO at 1% v/v, and Acclaim Extra 0.57EW at 0.09 lbs ai/A plus Dimension 40WP at 0.5 lbs ai/A. All treatments containing granular Drive, Preclaim 3.09EC at 2.06 lbs ai/A, Dimension 40WP at 0.5 and 0.25 lbs ai/A and Puma 1EC at 0.12 lbs ai/A did not provide a commercially acceptable level of control. In the post emergence study, acceptable postemergence control of smooth crabgrass was attained by the application of Acclaim Extra 0.57EW at 0.12 lbs ai/A, Puma 1EC at 0.12 lbs ai/A, Acclaim Extra 0.57EW at 0.12 lbs ai/A plus Confront 3SL at 0.375 lbs ai/A, and Preclaim 3.09EC at 2.06 lbs ai/A plus Confront 3SL at 0.375 lbs ai/A. All other treatments did not provide commercially acceptable control. In the other post emergence study, acceptable postemergence control (85%) of smooth crabgrass was attained by the application of Drive 75DF at 0.75 lbs ai/A plus MacroSorb Foliar at 2 oz/M with MSO at 1% v/v and Acclaim Extra 0.57EW at 0.12 lbs ai/A plus MacroSorb Foliar at 2 oz/M. All other treatments did not provide commercially acceptable control. Control was enhanced for Drive 75DF at 0.75 lbs ai/A, Drive 75DF at 0.5 lbs ai/A, Acclaim Extra 0.57EW at 0.12 ad 0.09 lbs ai/A by the addition of MacroSorb Foliar. Adding MacroSorb Foliar to the Dimension 1EC formulation did not enhance control at 0.5 lbs ai/A." |
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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. 2000. Smooth crabgrass control in 1999. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 54:p. 118-119. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_2000_vol54.pdf#page=118
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. 54 |
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