Control of Japanese stiltgrass (Microstegium vimineum) in golf course natural areas. (20th October 2020)

• Record Type: Journal Article
• Authors: Weaver, Josh R.; Brown, Philip J.; McCarty, Lambert B.; Gambrell, Nathaniel
• Is Part Of: Weed technology. Volume 34:Number 5(2020)
• Page Start: 776
• Page End: 778
• Publication Date: 2020-10-20
• Subjects: Turfgrass, -- weed control, -- POST herbicide; Amicarbazone, -- imazapic, -- metsulfuron, -- MSMA, -- MSMA + metribuzin, -- pinoxaden, -- quinclorac, -- sethoxydim, -- sulfentrazone, -- thiencarbazone-methyl + foramsulfuron + halosulfuron-methyl, -- Japanese stiltgrass, -- Microstegium vimineum (Trin.) A. Camus; Weeds -- Periodicals; Weeds -- Control -- Periodicals; 632.5
• DOI: 10.1017/wet.2020.44
• Languages: English
• ISSNs: 0890-037X

Abstract

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.