Herbicide selection for controlling Tahitian bridal veil (<i>Gibasis pellucida</i>)

Abstract Tahitian bridal veil [ Gibasis pellucida (M. Martens &amp; Galeotti) D.R. Hunt], a Central and South America native plant that is often confused with another more well-known invasive plant, small leaf spiderwort ( Tradescantia fluminensis Vell.), has become in natural areas throughout Florida. However, very little known regarding herbicide control or other methods. To begin the process of developing recommendations for land managers who are working to G. , multiple postemergence herbicides were screened efficacy shaded greenhouse determine active ingredients and/or combinations warrant further investigation under field conditions. Nine different combinations, including glyphosate, triclopyr acid, 2,4-D + triclopyr, aminopyralid, 2,4-D, amine, metsulfuron-methyl, fluroxypyr, glufosinate, applied at standard label rates compared nontreated group. Visual ratings taken 2, 4, 8 wk after treatment (WAT), shoot dry weights determined trial conclusion (8 WAT). Data showed glufosinate (acid amine) provided highest level control, as evidenced by (100% complete control) fresh weight reduction, followed (∼70%) fluroxypyr (∼50% control). Metsulfuron-methyl lowest results similar those plants on most evaluation dates.