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Integrated Management of Common Reed (Phragmites australis) along the Platte River in Nebraska

Published online by Cambridge University Press:  20 January 2017

Ryan E. Rapp ,
Avishek Datta ,
Suat Irmak ,
Timothy J. Arkebauer  and
Stevan Z. Knezevic
Ryan E. Rapp
Affiliation:
Department of Agronomy and Horticulture, University of Nebraska, Northeast Research and Extension Center, 57905-866 Road, Concord, NE 68728-2828
Avishek Datta
Affiliation:
Department of Agronomy and Horticulture, University of Nebraska, Northeast Research and Extension Center, 57905-866 Road, Concord, NE 68728-2828
Suat Irmak
Affiliation:
Department of Biological Systems Engineering, University of Nebraska, 241 Chase Hall, Lincoln, NE 68583-0726
Timothy J. Arkebauer
Affiliation:
Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE 68583-0817
Stevan Z. Knezevic*
Affiliation:
Department of Agronomy and Horticulture, University of Nebraska, Northeast Research and Extension Center, 57905-866 Road, Concord, NE 68728-2828
*
Corresponding author's E-mail: [email protected]
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Abstract

The nonnative biotype of common reed has invaded wetlands in many states including Nebraska, especially along the Platte River from Wyoming to the eastern edge of Nebraska. Therefore, three studies (disking followed by herbicide, mowing followed by herbicide, and herbicide followed by mechanical treatment) were conducted for 3 yr (2008 to 2010) at three locations in Nebraska. The objective was to evaluate common reed control along the Platte River using an integrated management approach based on herbicides (glyphosate or imazapyr), mowing, and disking, either applied alone or in combination. The level of weed control was determined by visual rating, percent flowering, and stem density. On the basis of visual rating, disking and mowing used alone provided common reed control for only a few months. However, the control was significantly prolonged (e.g., at least three seasons) when disking and mowing were combined with herbicide applications. Disking followed by herbicide and mowing followed by herbicide significantly reduced flowering and plant densities (P = 0.0001) compared to the untreated check. These results suggest that a combination of weed control methods has potential to control common reed.

El biotipo no nativo de Phragmites australis, ha invadido humedales en muchos estados incluyendo Nebraska, especialmente a lo largo del rio Platte de Wyoming hasta el borde este de Nebraska. Por lo tanto, tres estudios (arado de disco seguido de herbicida, corte mecánico seguido por herbicida y herbicida seguido por un tratamiento mecánico) se realizaron por tres años (2008-2010) en tres sitios de Nebraska. El objetivo fue evaluar el control de P. australis a lo largo del rio Platte usando un método de manejo integrado basado en el uso de herbicida (glifosato o imazapyr), corte, y arado de disco, ya sea aplicados por sí solos o en combinación. El nivel de control de maleza fue determinado por evaluación visual, porcentaje de floración y densidad de tallos. Basándose en la evaluación visual, el arado de disco o el corte mecánico usados solos, proporcionaron control de P. australis solamente por unos cuantos meses. Sin embargo, el control se prolongó significativamente (e.g. al menos tres estaciones) cuando el arado de disco y el corte se combinaron con aplicaciones de herbicida. El arado de disco seguido por herbicida o el corte seguido por herbicida, disminuyeron significativamente la floración y la densidad de plantas (P = 0.0001) en comparación con el testigo no tratado. Estos resultados sugieren que una combinación de los métodos de control de maleza, tiene el potencial para controlar P. australis.

Keywords

Imazapyrglyphosatecommon reed, Phragmites australis (Cav.) Trin. ex Steud. subsp. australis PHRCOIntegrated weed managementinvasivemechanical treatmentherbicide
Type
Weed Management—Techniques
Information
Weed Technology , Volume 26 , Issue 2 , June 2012 , pp. 326 - 333
Copyright
Copyright © Weed Science Society of America 

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