C. Stonecipher, C. Spackman, K. Panter, J. Villalba
{"title":"The use of a herbicide as a tool to increase livestock consumption of medusahead (Taeniatherum caput-medusae)","authors":"C. Stonecipher, C. Spackman, K. Panter, J. Villalba","doi":"10.1017/inp.2021.12","DOIUrl":null,"url":null,"abstract":"Abstract Medusahead [Taeniatherum caput-medusae (L.) Nevski] is an invasive annual grass spreading into rangelands throughout the western United States. We tested cattle (Bos taurus L.) utilization of T. caput-medusae following treatment with glyphosate in two forms of its salt (potassium salt and isopropylamine salt) at three different rates of application; low (236 g ae ha-1), medium (394 g ae ha-1), and high rates (788 g ae ha-1) in eastern Washington. The herbicide was applied on April 26, 2016. A second location, northern Utah, was treated with glyphosate in the form of its isopropylamine salt at the high rate. The herbicide was applied on June 5, 2019. Cattle were allowed to start grazing T. caput-medusae 15 d after glyphosate treatment and had unlimited access to the glyphosate-treated plots for more than 85 d. The greatest utilization of T. caput-medusae occurred at the highest glyphosate application rate (P < 0.05), in Washington, with no difference between forms of glyphosate salt. Cattle also consumed T. caput-medusae at the Utah site (P < 0.05). Glyphosate treatment preserved the water-soluble carbohydrate content of T. caput-medusae at levels greater than the nontreated controls (P < 0.05) at both locations. The glyphosate treatment assisted in the increased utilization of T. caput-medusae by cattle and is a viable option for the reduction of T. caput-medusae while increasing the forage value of the weed.","PeriodicalId":14470,"journal":{"name":"Invasive Plant Science and Management","volume":"14 1","pages":"106 - 114"},"PeriodicalIF":1.3000,"publicationDate":"2021-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1017/inp.2021.12","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Invasive Plant Science and Management","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1017/inp.2021.12","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 1
Abstract
Abstract Medusahead [Taeniatherum caput-medusae (L.) Nevski] is an invasive annual grass spreading into rangelands throughout the western United States. We tested cattle (Bos taurus L.) utilization of T. caput-medusae following treatment with glyphosate in two forms of its salt (potassium salt and isopropylamine salt) at three different rates of application; low (236 g ae ha-1), medium (394 g ae ha-1), and high rates (788 g ae ha-1) in eastern Washington. The herbicide was applied on April 26, 2016. A second location, northern Utah, was treated with glyphosate in the form of its isopropylamine salt at the high rate. The herbicide was applied on June 5, 2019. Cattle were allowed to start grazing T. caput-medusae 15 d after glyphosate treatment and had unlimited access to the glyphosate-treated plots for more than 85 d. The greatest utilization of T. caput-medusae occurred at the highest glyphosate application rate (P < 0.05), in Washington, with no difference between forms of glyphosate salt. Cattle also consumed T. caput-medusae at the Utah site (P < 0.05). Glyphosate treatment preserved the water-soluble carbohydrate content of T. caput-medusae at levels greater than the nontreated controls (P < 0.05) at both locations. The glyphosate treatment assisted in the increased utilization of T. caput-medusae by cattle and is a viable option for the reduction of T. caput-medusae while increasing the forage value of the weed.
期刊介绍:
Invasive Plant Science and Management (IPSM) is an online peer-reviewed journal focusing on fundamental and applied research on invasive plant biology, ecology, management, and restoration of invaded non-crop areas, and on other aspects relevant to invasive species, including educational activities and policy issues. Topics include the biology and ecology of invasive plants in rangeland, prairie, pasture, wildland, forestry, riparian, wetland, aquatic, recreational, rights-of-ways, and other non-crop (parks, preserves, natural areas) settings; genetics of invasive plants; social, ecological, and economic impacts of invasive plants and their management; design, efficacy, and integration of control tools; land restoration and rehabilitation; effects of management on soil, air, water, and wildlife; education, extension, and outreach methods and resources; technology and product reports; mapping and remote sensing, inventory and monitoring; technology transfer tools; case study reports; and regulatory issues.