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Various turfgrass species and cultivars are utilized for orchard floor management. Selection and establishment of low-maintenance species compatible with site conditions results in less need for mowing, fertilizing, and pesticide applications.  Koelaria macrantha  (Ledeb.) J.A. Schultes is a new turfgrass species that has demonstrated outstanding low-maintenance characteristics. This study evaluated the only commercially available cultivar `Barkoel' and three other species, including  Festuca arundinacea  Schreb (tall fescue),  Festuca rubra  L. ssp.  falax  Thuill (chewings fescue), and  Festuca longifolia  auct. non Thuill (hard fescue). Turf was seeded in a commercial peach orchard in Oct. 1996 and evaluated through Oct. 1999. After 3 years, the hard fescue cultivars had the best quality, with excellent density and low weed populations. Chewings fescue also had good density and few weeds. Tall fescue had good density, but more weeds than the hard and chewings fescues.  Koelaria macrantha  `Barkoel' had unacceptable quality, with poor density and the highest weed populations. The fine fescues, hard and chewings, suffered damage from orchard maintenance equipment. Damage was most severe during heat and drought stress in Summer 1999. Growers should limit equipment traffic on hard and chewings fescues during heat and drought stress. Tall fescue showed no significant damage from equipment, but it demonstrated a faster vertical growth rate. This increases the need for mowing.  Koelaria macrantha  `Barkoel' was not damaged by equipment. While  Koelaria  had the least density and most weeds after 3 years, it has performed well in our other tests. Higher seeding rates or modifications in seedbed preparation may improve density and reduce weed infestations.

475 Performance of Koelaria macrantha (Ledeb.) J.A. Schultes `Barkoel' and Low Maintenance Turfgrass Species for Orchard Floor Management