Response of Tahitian Bridal Veil () and Small-Leaf Spiderwort () to Postemergence Herbicides under Greenhouse Conditions.

Plants (Basel)

School of Forest, Fisheries, and Geomatics Sciences, North Florida Research and Education Center, University of Florida, Quincy, FL 32351, USA.

Published: May 2024

AI Article Synopsis

  • Tahitian bridal veil and small-leaf spiderwort are invasive species in Florida, with limited research on herbicide control methods.
  • Four herbicides (triclopyr acid, triclopyr amine + 2,4-D amine, triclopyr amine, and glufosinate) were tested in a greenhouse to find effective treatments.
  • Triclopyr (both acid and amine) showed the best results, achieving a 76% to 89% reduction in biomass, while the triclopyr + 2,4-D mix was notably less effective, reducing biomass by only 52% to 54%.

Article Abstract

Tahitian bridal veil () and small-leaf spiderwort () are both invasive species in natural areas throughout Florida. However, very little is known regarding herbicide control. To provide land managers with herbicidal control options for both species, postemergence herbicides were evaluated for efficacy in a greenhouse to identify herbicide options that control both species under similar settings. Four herbicides, including triclopyr acid, triclopyr amine + 2,4-D amine, triclopyr amine, and glufosinate were applied at standard label rates and compared to a non-treated control group for efficacy. Visual control ratings were taken at 2, 4, and 8 weeks after treatment (WAT), and shoot dry weights (WAT 8) and regrowth dry weights (WAT 12) were determined. Triclopyr (acid and amine) generally provided the most consistent control of both species as evidenced by the visual control ratings and shoot dry weight data which showed reductions of 76% to 89% in shoot biomass at trial conclusion. Triclopyr + 2,4-D reduced shoot dry weights by 52% to 54% and was the least effective when considering the control of both species.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11175085PMC
http://dx.doi.org/10.3390/plants13111513DOI Listing

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