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22 June 2020 Giant reed (Arundo donax) responses to herbicides in a greenhouse study
Mingyang Liu, Andrew Hulting, Carol Mallory-Smith
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Abstract

Giant reed recently was promoted as a biofuel crop in Oregon. Because giant reed is a highly invasive plant in North American rivers, the planting of this species in Oregon is a cause for concern to scientists and local land managers. However, some growers in the area were interested in producing giant reed as a rotational crop. To find potential herbicides to control the giant reed or to control it as a volunteer, 13 foliar and 13 cut-and-spray herbicide treatments were preevaluated in greenhouse studies. We chose 10% and 85% reduction in aboveground biomass for either crop safety or control, respectively. When applied at the standard rates, acetochlor and dimethenamid-p reduced aboveground dry biomass of the crop by 10% or less. Acetochlor+atrazine, atrazine, flufenacet, and mesotrione reduced aboveground biomass of the crop by at least 85%, indicating that these compounds have the potential to serve as controls against giant reed.

Nomenclature: Giant reed, Arundo donax L.; acetochlor; atrazine; dimethenamid-p; flufenacet; mesotrione

© Weed Science Society of America, 2020.
Mingyang Liu, Andrew Hulting, and Carol Mallory-Smith "Giant reed (Arundo donax) responses to herbicides in a greenhouse study," Weed Technology 34(6), 824-829, (22 June 2020). https://doi.org/10.1017/wet.2020.66
Received: 12 February 2020; Accepted: 12 June 2020; Published: 22 June 2020
KEYWORDS
biofuel crops
chemical control
giant reed
invasive species
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