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26 May 2020 Control of Japanese stiltgrass (Microstegium vimineum) in golf course natural areas
Josh R. Weaver, Philip J. Brown, Lambert B. McCarty, Nathaniel Gambrell
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Abstract

Japanese stiltgrass is regarded as one of the most troublesome invasive species in the United States. It is commonly found invading forested areas; however, more recently it has been noted to be invading golf course roughs and out-of-play areas. The purpose of this study was to evaluate POST herbicide control of Japanese stiltgrass in golf course and highly maintained turfgrass facilities. None of the treatments provided >80% Japanese stiltgrass control 2 wk after treatment (WAT). At 4 WAT >80% Japanese stiltgrass control was observed with MSMA, MSMA + metribuzin, amicarbazone, and sethoxydim, whereas metsulfuron, pinoxaden, and imazapic provided minimum control. By 8 WAT, MSMA, MSMA + metribuzin, amicarbazone, and sethoxydim provided >98% control, whereas quinclorac, metsulfuron, pinoxaden, and imazapic provided no visible control. Thiencarbazone-methyl + foramsulfuron + halosulfuron-methyl, and sulfentrazone provided limited (≤60%) control. This study indicates that POST control of Japanese stiltgrass can be achieved with MSMA, MSMA + metribuzin, amicarbazone, and sethoxydim. Future research should include long-term control over multiple growing seasons, repeat applications of herbicides, and evaluation of herbicides in combination for increased and longer-term Japanese stiltgrass control.

© Weed Science Society of America, 2020.
Josh R. Weaver, Philip J. Brown, Lambert B. McCarty, and Nathaniel Gambrell "Control of Japanese stiltgrass (Microstegium vimineum) in golf course natural areas," Weed Technology 34(5), 776-778, (26 May 2020). https://doi.org/10.1017/wet.2020.44
Received: 16 December 2019; Accepted: 10 April 2020; Published: 26 May 2020
KEYWORDS
POST herbicide
turfgrass
weed control
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