Comparative Efficacy of Diquat for Control of Two Members of the Hydrocharitaceae: Elodea and Hydrilla

The submersed plants hydrilla (Hydrilla verticillata (L.f.)Royle) and elodea (Elodea canadensis Rich.) are both membersof the Hydrocharitaceae family and cause problems inwaterways throughout the world. Diquat (6,7-dihydrodipyrido[1,2-α:2’,1’-c]pyrazinediiumdibromide) is a contact herbicide used to control nuisancesubmersed and floating aquatic macrophytes. There is no readily available information in the literatureon the control of elodea under various diquat concentrationand exposure times (CET) and other than a study by Van et. al 1987, little on hydrilla. Since CET relationships are critical in controlling submersed plants in areas influenced by water exchange, this study was designed to evaluate the efficacy of diquat on hydrilla and elodea under various CET scenarios. (PDF has 3 pages.)

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Bibliographic Details
Main Authors: Glomski, Lee Ann, Skogerboe, John G., Getsinger, Kurt D.
Format: article biblioteca
Language:English
Published: 2005
Subjects:Management, Biology, Limnology, Hydrilla verticillata, Elodea canadensis, Diquat, aquatic weeds, control,
Online Access:http://hdl.handle.net/1834/19481
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Summary:The submersed plants hydrilla (Hydrilla verticillata (L.f.)Royle) and elodea (Elodea canadensis Rich.) are both membersof the Hydrocharitaceae family and cause problems inwaterways throughout the world. Diquat (6,7-dihydrodipyrido[1,2-α:2’,1’-c]pyrazinediiumdibromide) is a contact herbicide used to control nuisancesubmersed and floating aquatic macrophytes. There is no readily available information in the literatureon the control of elodea under various diquat concentrationand exposure times (CET) and other than a study by Van et. al 1987, little on hydrilla. Since CET relationships are critical in controlling submersed plants in areas influenced by water exchange, this study was designed to evaluate the efficacy of diquat on hydrilla and elodea under various CET scenarios. (PDF has 3 pages.)