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Giant reed (Arundo donax) responses to herbicides in a greenhouse study

Published online by Cambridge University Press:  22 June 2020

Mingyang Liu*
Former Graduate student, Oregon State University, Corvallis, OR, USA Assistant Professor, Weifang Engineering Vocational College, Qingzhoushi, China
Andrew Hulting
Associate Professor, Oregon State University, Corvallis, OR, USA
Carol Mallory-Smith
Professor Emeritus, Oregon State University, Corvallis, OR, USA
Author for correspondence: Mingyang Liu, Assistant Professor, Weifang Engineering Vocational College, 8979 Yunmenshan Rd., Qingzhoushi, China Email:


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.

Research Article
© Weed Science Society of America, 2020

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Associate Editor: Daniel Stephenson, Louisana State University Agricultural Center


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