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TECHNICAL REPORTS

Surface Water Quality

Selection of Plants for Optimization of Vegetative Filter Strips Treating Runoff from Turfgrass

^a USDA-ARS, National Soil Dynamics Lab., 411S. Donahue Dr., Auburn, AL 36832
^b Massachusetts Pesticide Analysis Lab., Dep. of Veterinary & Animal Sciences, Univ. of Massachusetts-Amherst, 639 N. Pleasant St., Amherst, MA 01003
^c Environmental Sciences Program, Univ. of Massachusetts-Amherst, 312 Stockbridge Hall, Amherst, MA 01003
^d Plant, Soil, & Insect Sciences, Univ. of Massachusetts-Amherst, French Hall 202, Amherst, MA 01003

^* Corresponding author (jclark{at}vasci.umass.edu).

Received for publication June 19, 2007. Runoff from turf environments, such as golf courses, is of increasing concern due to the associated chemical contamination of lakes, reservoirs, rivers, and ground water. Pesticide runoff due to fungicides, herbicides, and insecticides used to maintain golf courses in acceptable playing condition is a particular concern. One possible approach to mitigate such contamination is through the implementation of effective vegetative filter strips (VFS) on golf courses and other recreational turf environments. The objective of the current study was to screen ten aesthetically acceptable plant species for their ability to remove four commonly-used and degradable pesticides: chlorpyrifos (CP), chlorothalonil (CT), pendimethalin (PE), and propiconazole (PR) from soil in a greenhouse setting, thus providing invaluable information as to the species composition that would be most efficacious for use in VFS surrounding turf environments. Our results revealed that blue flag iris (Iris versicolor) (76% CP, 94% CT, 48% PE, and 33% PR were lost from soil after 3 mo of plant growth), eastern gama grass (Tripsacum dactyloides) (47% CP, 95% CT, 17% PE, and 22% PR were lost from soil after 3 mo of plant growth), and big blue stem (Andropogon gerardii) (52% CP, 91% CT, 19% PE, and 30% PR were lost from soil after 3 mo of plant growth) were excellent candidates for the optimization of VFS as buffer zones abutting turf environments. Blue flag iris was most effective at removing selected pesticides from soil and had the highest aesthetic value of the plants tested.