Journal or Publishing Institution: Canadian Journal of Forest Research
Study: https://www.nrcresearchpress.com/doi/abs/10.1139/cjfr-2018-0331#.XQEhZ4hKiUk
Author(s): Wood, L.J.
Article Type: Peer Reviewed Study
Abstract:
Persistent nonlethal doses of glyphosate in plant tissue may have implications for the edible and (or) medicinal use of native plants. This study investigated native plants growing in northern British Columbia, Canada, to determine glyphosate presence and location within tissue in select species of traditional-use value with different life strategies. Perennial herbaceous and woody plants were collected one year after forestry-based applications of glyphosate in the Peace River Region of British Columbia. Shoot, fruit, and root portions of select species were analyzed for glyphosate and aminomethylphosphonic acid (AMPA) residues using HPLC–IPCMS. Glyphosate residues were found one-year after application. The highest and most consistent levels of glyphosate and AMPA were found in herbaceous perennial root tissues, but shoot tissues and fruit were also shown to contain glyphosate in select species. Levels found in some cases were greater than expected. Findings indicate the ability of glyphosate to be stored in root structures of perennial plants during dormancy periods and move up to shoot and fruit portions in years following applications in some species. Further investigation is required to determine the timeline associated with glyphosate presence in plant tissues.
Keywords: traditional-use plants, herbicide, persistence, translocation, functional traits, glyphosate, AMPA
Citation:
Wood, L.J., 2019. The presence of glyphosate in forest plants with different life strategies one year after application. Canadian Journal of Forest Research, 49(999), pp.586-594.
Category:
- Environmental effects
- Pesticide use
Record ID: 2479
