Assessing approaches to manage Phragmites in Utah wetlands

Metadata Updated: February 11, 2019

Given the extent of the Phragmites problem in Utah and elsewhere, managers are eager to understand what techniques are most effective for killing Phragmites while simultaneously fostering native plant recovery. A variety of strategies have been widely employed for Phragmites management including summer or fall herbicide application, mowing, burning, and flooding (Marks et al. 1994, Kettenring 2012, Hazelton et al. 2014). But, as is often the case with natural resource management, due to limited time and money, there has been little monitoring of success nor any systematic evaluation of management strategies across the varied environmental conditions where Phragmites is found, particularly in Utah. Given the interest in effective management strategies for Phragmites, there is a need to evaluate and monitor the success of different techniques. Another complicating factor in effective Phragmites management is that, contrary to popular belief, Phragmites spreads largely by seeds rather than rhizomes (Kettenring and Mock 2012). While a fall herbicide spray is widely used to manage Phragmites, this occurs after Phragmites has produced its seeds. Managers need additional tools to prevent seed production in conjunction with managing existing stands (e.g., mowing in conjunction with herbicide or using herbicide application earlier in the year). Finally, while the herbicide glyphosate has been widely used to manage Phragmites, another herbicide, imazapyr, has also been shown to be effective for managing Phragmites (Mozdzer et al. 2008, Hazelton et al. 2014). Further research is needed to compare the effectiveness of these herbicides, including the best time for application, for Phragmites management and native plant recovery. We have embarked on a five-year set of experiments where we are evaluating potential strategies for dealing with new infestations of Phragmites (small patch study) as well as large, dense monocultures of Phragmites (large stand study). Here we report on the effectiveness on the first three years of management treatments (2012-2014) and wetland recovery following the cessation of the management treats (2015).

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Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date December 1, 2018
Metadata Updated Date February 11, 2019

Metadata Source

Harvested from DOI CKAN Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Created Date December 1, 2018
Metadata Updated Date February 11, 2019
Publisher Fish and Wildlife Service
Unique Identifier FWS_ServCat_57386
Brent Frakes
Maintainer Email
Public Access Level public
Bureau Code 010:18
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Harvest Source Id 34ce571b-cb98-4e0b-979f-30f9ecc452c5
Harvest Source Title DOI CKAN Harvest Source
Data First Published 2015-01-01
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