Full TGIF Record # 232958
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Web URL(s):http://archive.lib.msu.edu/tic/rpr/1992/Environmental/27771,%20U%20Georiga,%20Smith.PDF
    Last checked: 11/21/2013
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Publication Type:
Material Type:Manuscript
Monographic Author(s):Smith, Albert E.; Bridges, David C.; Braman, Kris; Burpee, Lee; Carrow, Robert; Johnson, B. J.
Author Affiliation:Smith, Bridges, Carrow, and Johnson: Agronomy Dept.; Braman: Entomology Dept.; and Burpee: Plant Pathology Dept., Univ. of Georgia and Investigator
Monograph Title:Evaluation of the Potential Movement of Pesticides Following Application to Golf Courses: [1992 Annual Research Report], 1992.
# of Pages:14
Publishing Information:[Athens, Georgia]: University of Georgia
Collation:14 pp.
Abstract/Contents:"This 1992 annual report references methods developed during the first year of this research program. Therefore, the total accumulated file of reports and publications is included with this report to reference specific methods and installation designs. Research completed since the filing of the 1992 semi-annual report includes completion of the first repetition of the greenhouse and field lysimeter experiments with treatments of 2,4-D, dicamba, and MCPP to 'Tifdwarf' bermudagrass and 'Pencross' bentgrass. The effluent water from the lysimeters receiving the 2,4-D and dicamba treatments were analyzed and the data are reported in this report. The MCPP subsamples will be extracted and analyzed in the near future as will the soil and foliage samples from all treatments. The data from the greenhouse and field lysimeters correlated quite well. Only minimum quantities of herbicide were transported in the elutriated water from both types of lysimeters. In the greenhouse experiments similar amounts of 2,4-D were transported from lysimeters regardless of quantity of organic matter in the rooting media or formulation of 2,4-D (DMA or LV) used in the treatments. In all instances the 2,4-D concentration in the collected samples was very low with maximum concentrations of slightly more than 6 μg L-1. This is an order of magnitude below the MCL of 70 μg L-1 established by the Office of Drinking Water U. S. EPA. Only dicamba was found in the samples collected from the field lysimeters and it was found to be transported during week 6 from lysimeters containing both turfgrass species. The maximum concentration of dicamba found in the leachates from the field lysimeters was 2.58 μg L-1. The results, included in this report, corroborate the results obtained in the greenhouse research conducted last winter with 2,4-D and reported in the 1992 semi-annual report. All data indicate that the GWCP ratings and the GLEAMS model overestimate the potential for the acid herbicides to be transported through the golf course greens mixture. Differences between the measured and predicated transport can partially be accounted for by the lack of a quantitative understanding of herbicide fate on the vegetative surface and in the turfgrass thatch horizon. These experiments will be repeated for confirmation of results and publication."
See Also:See also related summary article "Evaluation of the potential movement of pesticides following application to a golf course" 1992 Environmental Research Summary [USGA], 1992, p.8, R=27771. R=27771
Note:Also appears as pp. 00111-00124 in the USGA Turfgrass Research Committee Reporting Binders for 1992.
"Climatic Region: Warm Humid"
"USGA Region: Southeastern"
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