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| Web URL(s): | http://www.newss.org/proceedings/proceedings_2008.pdf#page=107
Last checked: 07/16/2013
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Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Naedel, M. B.;
Borger, J. A. |
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| Author Affiliation: | Penn State University, University Park |
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| Title: | Preemergence smooth crabgrass control |
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| Section: | Turfgrass and plant growth regulators II
Other records with the "Turfgrass and plant growth regulators II" Section
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| Meeting Info.: | Philadelphia, Pennsylvania: January 7-10, 2008 |
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| Source: | Proceedings of the Sixty-Second Annual Meeting of the Northeastern Weed Science Society. Vol. 62, 2008, p. 89. |
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| Publishing Information: | Baltimore, Maryland: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Bensulide; Crabgrass control; Digitaria ischaemum; Dithiopyr; Herbicide efficacy; Herbicide evaluation; Lolium perenne; Pendimethalin; Phytotoxicity; Preemergence weed control
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| Cultivar Names: | Jet Elite |
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| Trade Names: | Dimension; Pendulum; Betasan |
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| Abstract/Contents: | "Preemergence control of smooth crabgrass (Digitaria ischaemum) was evaluated on a mature stand of 'Jet Elite' perennial ryegrass (Lolium perenne L.) at the Valentine Turfgrass Research Center, Penn State University, University Park, PA. The objectives of the study were to determine the efficacy of selected preemergence herbicides for the control of smooth crabgrass when applied early in the growing season compared to normal application timing, the rates of materials, and the safety to desired turfgrass species. This study was a randomized complete block design with three replications. Treatments were applied on March 27, 2007 (EARLY), April 26 (PRE), and June 7 (1-2LF), 2007 using a three foot CO2 powered boom sprayer calibrated to deliver 80 gpa using one, flat fan, 11008E nozzle at 40 psi. After the second and third application the entire test site received approx imately 0.5 inch of water. On May 8, 2007, 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 entire test area. The site was mowed once per week with a rotary mower at one inch with clippings returned to the site. The test site was over-seeded with a native source of smooth crabgrass seed in the fall of at least two of the pervious growing seasons. The test site had approximately 90% cover of smooth crabgrass in t he non treated areas at the conclusion of the study. Smooth crabgrass germination was first noted in the non treated areas of the test site on May 1, 2007. Turfgrass phytotoxicity was evaluated four times during the study (Table 1). No phytotoxicity was found during the study. The percent control of smooth crabgrass was evaluated on August 6th (Table 2). All treated turfgrass, except t hat treated with Pendulum® 3.8CS at 0.5 lb ai/A applied early, had significantly less crabgrass than non treated turfgrass. Turfgrass treated with Dimension® 40WP three times (EARLY/PRE/1-2LF) with a total of 0.5 lb ai/A applied was not significantly different that turfgrass treated once with Dimension® 40WP at 0.5 lb ai/A applied PRE. But, when Dimension® was applied three times (EARLY/PRE/1- 2LF) with a total of 0.375 lb ai/A applied total was compared to turfgrass treated once with Dimension® 40WP at 0.5 lb ai/A applied PRE no significant difference was found in the control of crabgrass. Turfgrass treated with Pendulum® 3.8CS at 0.5 lb ai/A EARLY plus Dimension® 40WP at 0.5 lb ai/A 1-2 LF had significantly more control of crabgrass compared to turfgrass treated with Pendulum® 3.8CS at 0.5 lb ai/A EARLY plus Dimension® 40WP at 0.25 lb ai/A 1-2 LF. Turfgrass treated with Betasan® 4E at 7.4 oz/M PRE was not significantly different than turfgrass treated with Betasan® 4E at 3.7 oz/M EARLY plus Dimension® 40WP at 0.5 lb ai/A 1-2 LF or Betasan® 4E at 3.7 oz/M EARLY plus Dimension® 40WP at 0.25 lb ai/A 1-2 LF. Turfgrass treated with Barricade® 65WG at 0.25 lb ai/A applied EARLY plus mesotrione 4SC at 0.125 lb ai/A applied PRE/1-2 LF was not significantly different than turfgrass treated with Barricade® 65WG at 0.25 lb ai/A applied EARLY plus mesotrione 4SC at 0.125 lb ai/A applied 1-2 LF." |
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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):
Naedel, M. B., and J. A. Borger. 2008. Preemergence smooth crabgrass control. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 62:p. 89. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_2008.pdf#page=107
Last checked: 07/16/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 610 .N62 |
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