Full TGIF Record # 233581
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Web URL(s):http://archive.lib.msu.edu/tic/rpr/1991/Environmental/44771,%20U%20Georiga,%20Smith.PDF
    Last checked: 12/04/2013
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Material Type:Manuscript
Monographic Author(s):Smith, Albert; Bridges, David; 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: [1991 Annual Research Report], 1991.
# of Pages:10
Publishing Information:[Athens, Georgia]: University of Georgia
Collation:[1], 9 pp.
Abstract/Contents:"A critical issue facing the turfgrass industry is the environmental fate and safety of pesticides used in the managament of recreational facilities. A major concern for the impact of pesticides on the environment is their potential entrance into drinking water sources which is facilitated by movement in surface water and groundwater from the treated site. Many golf course greens are constructed for maximum infiltration and percolation of water through the soil profile. The objectives of our project are to: (1) determine the potential movement of pesticides from treated bermudagrass and bentgrass greens through effluent entry into surface runoff and groundwater and (2) determine the potential movement of pesticides from treated bermudagrass fairways by surface runoff and groundwater. The initial funding of this project was received during the spring of 1991 and the proposed research time table for 1991 is for the development of the greenhouse and field lysimeter installations and to develop laboratory methods for accurately quantifying the pesticides according to the Good Laboratory Practice Standards. Analytical methods were developed to accurately determine 2,4-D; mecoprop; and dicamba at levels of 1, 100, and 20 ppb, respectively, in aqueous solution using partition extraction and electron-capture gas-chromatography analysis. The greenhouse lysimeter facility has been constructed to simulate golf course greens with Penncross bentgrass and Tifgreen bermudagrass turf. Thirty-six individual lysimeters were constructed by mounting a turfgrass growth-box on a PVC column containing a soil profile developed according to USGA specifications. An automatic track-irrigation system was developed for controlling the rates and time for irrigation. The watering nozzles traverse a horizontal track located above the growth boxes at a speed of 2.9 m/min. The flow rate of the water was adjusted to a rate of 1.8 ml/sec at 20 psi. The daily irrigation of 0.6 cm of water and a weekly rain event of 2.5 cm are controlled by an automatic timer. The coefficients of variation for water distribution were less than 0.08 across the boxes laterally and over the length of the track. The first pesticide treatments will be conducted during the last week of October, 1991. The field lysimeter facility consists of small bermudagrass and bentgrass greens with lysimeters (55 cm diam.) installed below the sod. The 20 lysimeters are plumbed in the bottom for collection of aqueous effluent from the soil profile developed according to USGA specifications. Bentgrass will be seede during the last week in October, 1991 and bermudagrass will be sodded in April, 1992."
See Also:See also related summary article, "Evaluation of the potential movement of pesticides following application to a golf course", 1991 Environmental Research Summary [USGA], 1991, pp. 9-10, R=44771. R=44771
Note:Also appears as pp. 00081-00091 in the USGA Turfgrass Research Committee Reporting Binders for 1991.
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