What are effective treatments for controlling small, dense patches of Phragmites australis in Great Salt Lake wetlands?

TL;DRAbstract

Phragmites australis has been expanding rapidly in the wetlands of the Great Salt Lake (GSL). The dense and vigorous growth of this invasive plant make it inhospitable habitat for the waterfowl and shorebirds that rely on the hemispherically important GSL wetlands. Here we present our plan for a multi-year study, started in the summer of 2012, which will examine the effectiveness of six treatments for controlling dense, quarter-acre patches of Phragmites at six sites along the eastern shore of the GSL. A balanced incomplete block design will be employed across the six sites such that all treatments will be equally replicated. The treatments are 1.) a summer mow, followed by a fall glyphosate spray, 2.) a summer glyphosate spray, followed by a winter mow, 3.) a fall glyphosate spray, followed by a winter mow, 4.) a summer imazapyr spray, followed by a winter mow, 5.) a summer mow immediately covered by heavy-duty black plastic, 6.) an untreated control. Percent cover of Phragmites, dens

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