Soil residual activity of tetflupyrolimet and the influence of soil moisture and flood timeliness on barnyardgrass efficacy
Tetflupyrolimet is the first herbicide with a novel site of action to be commercialized for use in agronomic crops in three decades. Direct-seed rice field experiments were conducted at research facilities near Stuttgart (silt loam), AR, and Keiser (clay), AR, to evaluate tetflupyrolimet as a preeme...
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Cambridge University Press
2025-01-01
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| Series: | Weed Technology |
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| Online Access: | https://www.cambridge.org/core/product/identifier/S0890037X2400112X/type/journal_article |
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| author | Mason C. Castner Jason K. Norsworthy Trenton L. Roberts Travis R. Faske Thomas R. Butts Nick R. Bateman |
| author_facet | Mason C. Castner Jason K. Norsworthy Trenton L. Roberts Travis R. Faske Thomas R. Butts Nick R. Bateman |
| author_sort | Mason C. Castner |
| collection | DOAJ |
| description | Tetflupyrolimet is the first herbicide with a novel site of action to be commercialized for use in agronomic crops in three decades. Direct-seed rice field experiments were conducted at research facilities near Stuttgart (silt loam), AR, and Keiser (clay), AR, to evaluate tetflupyrolimet as a preemergence herbicide versus commercial standards. Greenhouse experiments determined the influence of soil moisture on pre- and postemergence barnyardgrass control with tetflupyrolimet and clomazone and the impact of a delayed flood on efficacy when POST-applied. For the field experiments, clomazone, tetflupyrolimet, and quinclorac were applied individually PRE at 336 and 560, 134 and 224, and 336 and 560 g ai ha−1, respectively, on a silt loam and clay soil, along with clomazone + tetflupyrolimet and clomazone + quinclorac at the same rates. The soil moisture experiment included a single PRE and a single POST application of clomazone at 336 g ai ha−1, of tetflupyrolimet at 134 g ai ha−1, and of a mixture at the respective rates on a silt loam soil at 50%, 75%, and 100% of field capacity. For the flood timing experiment, tetflupyrolimet was applied to 2- to 3-leaf barnyardgrass at 134 g ai ha−1, and a flood was established at 4 h after treatment (HAT) and 5 and 10 d after treatment (DAT). Barnyardgrass control with a tetflupyrolimet and clomazone mixture was comparable to clomazone + quinclorac when averaged over all evaluations on silt loam and clay texture soils (≥91%). Soil moisture interacted with herbicide treatments for PRE and POST barnyardgrass efficacy when averaged over DAT, with tetflupyrolimet + clomazone generally providing the greatest and most consistent control across regimes. Flooding barnyardgrass at 4 HAT provided superior control to later flood timings. Tetflupyrolimet is an effective residual barnyardgrass herbicide, and the addition of clomazone will aid in providing consistent control across varying soil moisture conditions. |
| format | Article |
| id | doaj-art-b6052a07b69642689f57d8f88eff3857 |
| institution | DOAJ |
| issn | 0890-037X 1550-2740 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Cambridge University Press |
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| series | Weed Technology |
| spelling | doaj-art-b6052a07b69642689f57d8f88eff38572025-08-20T03:09:19ZengCambridge University PressWeed Technology0890-037X1550-27402025-01-013910.1017/wet.2024.112Soil residual activity of tetflupyrolimet and the influence of soil moisture and flood timeliness on barnyardgrass efficacyMason C. Castner0https://orcid.org/0000-0003-2811-2357Jason K. Norsworthy1Trenton L. Roberts2Travis R. Faske3Thomas R. Butts4Nick R. Bateman5Former Graduate Research Assistant, Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR, USADistinguished Professor and Elms Farming Chair of Weed Science, Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR, USAProfessor, Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR, USAProfessor, Department of Entomology and Plant Pathology, University of Arkansas, Lonoke, AR, USAClinical Assistant Professor of Weed Science, Purdue University, West Lafayette, IN, USAAssociate Professor, Department of Entomology and Plant Pathology, University of Arkansas, Stuttgart, AR, USATetflupyrolimet is the first herbicide with a novel site of action to be commercialized for use in agronomic crops in three decades. Direct-seed rice field experiments were conducted at research facilities near Stuttgart (silt loam), AR, and Keiser (clay), AR, to evaluate tetflupyrolimet as a preemergence herbicide versus commercial standards. Greenhouse experiments determined the influence of soil moisture on pre- and postemergence barnyardgrass control with tetflupyrolimet and clomazone and the impact of a delayed flood on efficacy when POST-applied. For the field experiments, clomazone, tetflupyrolimet, and quinclorac were applied individually PRE at 336 and 560, 134 and 224, and 336 and 560 g ai ha−1, respectively, on a silt loam and clay soil, along with clomazone + tetflupyrolimet and clomazone + quinclorac at the same rates. The soil moisture experiment included a single PRE and a single POST application of clomazone at 336 g ai ha−1, of tetflupyrolimet at 134 g ai ha−1, and of a mixture at the respective rates on a silt loam soil at 50%, 75%, and 100% of field capacity. For the flood timing experiment, tetflupyrolimet was applied to 2- to 3-leaf barnyardgrass at 134 g ai ha−1, and a flood was established at 4 h after treatment (HAT) and 5 and 10 d after treatment (DAT). Barnyardgrass control with a tetflupyrolimet and clomazone mixture was comparable to clomazone + quinclorac when averaged over all evaluations on silt loam and clay texture soils (≥91%). Soil moisture interacted with herbicide treatments for PRE and POST barnyardgrass efficacy when averaged over DAT, with tetflupyrolimet + clomazone generally providing the greatest and most consistent control across regimes. Flooding barnyardgrass at 4 HAT provided superior control to later flood timings. Tetflupyrolimet is an effective residual barnyardgrass herbicide, and the addition of clomazone will aid in providing consistent control across varying soil moisture conditions.https://www.cambridge.org/core/product/identifier/S0890037X2400112X/type/journal_articleClomazonequincloractetflupyrolimetbarnyardgrassEchinochloa crus-galli (L.) P. Beauv.riceOryza sativa L.Flood timingpostemergencepreemergence |
| spellingShingle | Mason C. Castner Jason K. Norsworthy Trenton L. Roberts Travis R. Faske Thomas R. Butts Nick R. Bateman Soil residual activity of tetflupyrolimet and the influence of soil moisture and flood timeliness on barnyardgrass efficacy Weed Technology Clomazone quinclorac tetflupyrolimet barnyardgrass Echinochloa crus-galli (L.) P. Beauv. rice Oryza sativa L. Flood timing postemergence preemergence |
| title | Soil residual activity of tetflupyrolimet and the influence of soil moisture and flood timeliness on barnyardgrass efficacy |
| title_full | Soil residual activity of tetflupyrolimet and the influence of soil moisture and flood timeliness on barnyardgrass efficacy |
| title_fullStr | Soil residual activity of tetflupyrolimet and the influence of soil moisture and flood timeliness on barnyardgrass efficacy |
| title_full_unstemmed | Soil residual activity of tetflupyrolimet and the influence of soil moisture and flood timeliness on barnyardgrass efficacy |
| title_short | Soil residual activity of tetflupyrolimet and the influence of soil moisture and flood timeliness on barnyardgrass efficacy |
| title_sort | soil residual activity of tetflupyrolimet and the influence of soil moisture and flood timeliness on barnyardgrass efficacy |
| topic | Clomazone quinclorac tetflupyrolimet barnyardgrass Echinochloa crus-galli (L.) P. Beauv. rice Oryza sativa L. Flood timing postemergence preemergence |
| url | https://www.cambridge.org/core/product/identifier/S0890037X2400112X/type/journal_article |
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