Environmental effects on efficacy of herbicides for postemergence goosegrass (Eleusine indica) control

Abstract Experiments were conducted to understand environmental effects on efficacy of herbicides used to control goosegrass (Eleusine indica L. Gaertn.). Herbicides were applied to goosegrass maintained at soil moisture contents (VMC) of < 12%, 12 to 20%, or > 20%. Herbicides included fenoxap...

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Autores principales:	Avat Shekoofa, James T. Brosnan, Jose J. Vargas, Daniel P. Tuck, Matthew T. Elmore
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/99d569807df546949c79f2a7c9212136
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spelling	oai:doaj.org-article:99d569807df546949c79f2a7c92121362021-12-02T12:34:06ZEnvironmental effects on efficacy of herbicides for postemergence goosegrass (Eleusine indica) control10.1038/s41598-020-77570-52045-2322https://doaj.org/article/99d569807df546949c79f2a7c92121362020-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-77570-5https://doaj.org/toc/2045-2322Abstract Experiments were conducted to understand environmental effects on efficacy of herbicides used to control goosegrass (Eleusine indica L. Gaertn.). Herbicides were applied to goosegrass maintained at soil moisture contents (VMC) of < 12%, 12 to 20%, or > 20%. Herbicides included fenoxaprop-p-ethyl (140 g ha−1), topramezone (25 g ha−1), foramsulfuron (44 g ha−1), 2,4-D + dicamba + MCPP + carfentrazone (860 + 80 + 270 + 28 g ha−1), and thiencarbazone-methyl + foramsulfuron + halosulfuron-methyl (22 + 45 + 69 g ha−1). Goosegrass control increased as VMC increased. Vapor pressure deficit (VPD) and air temperature were manipulated to determine effects of evaporative demand on foramsulfuron. Effects of soil drying were also studied following foramsulfuron application. Reductions in transpiration rate (TR) and leaf area were greatest with foramsulfuron applications to goosegrass in silt-loam under high evaporative demand (3 kPa VPD, 38 °C). Foramsulfuron had no effect on goosegrass in silica-sand regardless of evaporative demand. TR dropped to 0.2 mmh−1 within eight days after application to goosegrass in silt-loam compared to 18 days in silica-sand. Overall, foramsulfuron efficacy on goosegrass was maximized under conditions of high soil moisture and evaporative demand, and may be reduced in sandy soils that hold less water.Avat ShekoofaJames T. BrosnanJose J. VargasDaniel P. TuckMatthew T. ElmoreNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-9 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Avat Shekoofa James T. Brosnan Jose J. Vargas Daniel P. Tuck Matthew T. Elmore Environmental effects on efficacy of herbicides for postemergence goosegrass (Eleusine indica) control
description	Abstract Experiments were conducted to understand environmental effects on efficacy of herbicides used to control goosegrass (Eleusine indica L. Gaertn.). Herbicides were applied to goosegrass maintained at soil moisture contents (VMC) of < 12%, 12 to 20%, or > 20%. Herbicides included fenoxaprop-p-ethyl (140 g ha−1), topramezone (25 g ha−1), foramsulfuron (44 g ha−1), 2,4-D + dicamba + MCPP + carfentrazone (860 + 80 + 270 + 28 g ha−1), and thiencarbazone-methyl + foramsulfuron + halosulfuron-methyl (22 + 45 + 69 g ha−1). Goosegrass control increased as VMC increased. Vapor pressure deficit (VPD) and air temperature were manipulated to determine effects of evaporative demand on foramsulfuron. Effects of soil drying were also studied following foramsulfuron application. Reductions in transpiration rate (TR) and leaf area were greatest with foramsulfuron applications to goosegrass in silt-loam under high evaporative demand (3 kPa VPD, 38 °C). Foramsulfuron had no effect on goosegrass in silica-sand regardless of evaporative demand. TR dropped to 0.2 mmh−1 within eight days after application to goosegrass in silt-loam compared to 18 days in silica-sand. Overall, foramsulfuron efficacy on goosegrass was maximized under conditions of high soil moisture and evaporative demand, and may be reduced in sandy soils that hold less water.
format	article
author	Avat Shekoofa James T. Brosnan Jose J. Vargas Daniel P. Tuck Matthew T. Elmore
author_facet	Avat Shekoofa James T. Brosnan Jose J. Vargas Daniel P. Tuck Matthew T. Elmore
author_sort	Avat Shekoofa
title	Environmental effects on efficacy of herbicides for postemergence goosegrass (Eleusine indica) control
title_short	Environmental effects on efficacy of herbicides for postemergence goosegrass (Eleusine indica) control
title_full	Environmental effects on efficacy of herbicides for postemergence goosegrass (Eleusine indica) control
title_fullStr	Environmental effects on efficacy of herbicides for postemergence goosegrass (Eleusine indica) control
title_full_unstemmed	Environmental effects on efficacy of herbicides for postemergence goosegrass (Eleusine indica) control
title_sort	environmental effects on efficacy of herbicides for postemergence goosegrass (eleusine indica) control
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/99d569807df546949c79f2a7c9212136
work_keys_str_mv	AT avatshekoofa environmentaleffectsonefficacyofherbicidesforpostemergencegoosegrasseleusineindicacontrol AT jamestbrosnan environmentaleffectsonefficacyofherbicidesforpostemergencegoosegrasseleusineindicacontrol AT josejvargas environmentaleffectsonefficacyofherbicidesforpostemergencegoosegrasseleusineindicacontrol AT danielptuck environmentaleffectsonefficacyofherbicidesforpostemergencegoosegrasseleusineindicacontrol AT matthewtelmore environmentaleffectsonefficacyofherbicidesforpostemergencegoosegrasseleusineindicacontrol
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Environmental effects on efficacy of herbicides for postemergence goosegrass (Eleusine indica) control

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