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| Web URL(s): | http://www.newss.org/proceedings/proceedings_2007.pdf#page=107
Last checked: 07/01/2013
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): | Fidanza, M. A.;
Borger, J. A.;
Naedel, M. B.;
Bigelow, C. A.;
Bhowmik, P. C. |
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| Author Affiliation: | Fidanza: The Pennsylvania State Univ., Reading; Borger and Naedel: The Pennsylvania State Univ., University Park; Bigelow: Purdue Univ., West Lafayette, IN; Bhowmik: Univ. of Massachusetts, Amherst |
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| Title: | Preliminary study at four locations on using growing degree-days to apply a preemergence herbicide |
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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, Maryland: January 2-5, 2007 |
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| Source: | Proceedings of the Sixty-First Annual Meeting of the Northeastern Weed Science Society. Vol. 61, 2007, 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: Application timing; Cool season turfgrasses; Crabgrass control; Growing degree days; Herbicide efficacy; Herbicide evaluation; Preemergence herbicides; Prodiamine
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| Abstract/Contents: | "Crabgrass (Digitaria spp.) is a troublesome and problematic annual grass weed in cultured turfgrass. Preemergence herbicides are often used for the control of crabgrass in lawns, however, in some years the level of control is considered marginal or not commercially acceptable. The issue of poor or unacceptable crabgrass control from preemergence herbicides in lawns may involve the early-to-mid spring application timing of these kinds of products. Therefore, the objective of this research was to attempt to determine optimum application timing for a commonly used preemergence herbicide for the control of crabgrass in cool-season turfgrass maintained as a lawn. The same field study was conducted during March through September, 2006, on a mixed stand of cool-season turfgrass at four locations: (1) Bellewood Golf Course, North Coventry, PA, (2) Pennsylvania State University, University Park, PA, (3) Purdue University, West Lafayette, IN, and (4) University of Massachusetts, Amherst, MA. The preemergence herbicide prodiamine (trade name = Barricade 65WG) was applied at 0.55 kg ai/ha (0.75 lbs product/A) over a range of 15 different cumulative growing degree-day accumulations, as follows: 0 - 10, 11 - 20, 21 - 30, 31 - 40, 41 - 50, 51 - 60, 61 - 70, 71 - 80, 81 - 90, 91 - 100, 101 - 120, 121 - 140, 141 - 160, 161 - 180, and 181 - 200. A base temperature of 10 C (50 °F) was used to calculate cumulative degree-days from soil temperatures derived from each location via satellite weather data. An untreated check was also included in the treatments, which were arranged in a randomized complete block design with three or four replications depending on the study location. Also, individual plot size varied according to study location, and mowing height ranged from 5.0 to 7.5 cm (2 to 3 inches). At each location, the treatments were applied from flat-fan nozzles with a CO2-powered backpack sprayer through an average of about 408 gal water carrier per ha (1 gal water per 1000 sq ft) at 250 kPa (35 psi). Preliminary analysis revealed that crabgrass control varied among the application timings at all four locations. Also, preliminary analysis of the data from all four locations indicated a need for improved accuracy with accessing soil temperature-based cumulative growing degree-day information." |
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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):
Fidanza, M. A., J. A. Borger, M. B. Naedel, C. A. Bigelow, and P. C. Bhowmik. 2007. Preliminary study at four locations on using growing degree-days to apply a preemergence herbicide. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 61:p. 89. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_2007.pdf#page=107
Last checked: 07/01/2013
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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