Variation in amphibian response to two formulations of glyphosate‐based herbicides. (22nd September 2014)

• Record Type: Journal Article
• Authors: Edge, Christopher; Gahl, Meghan; Thompson, Dean; Hao, Chunyan; Houlahan, Jeff
• Is Part Of: Environmental toxicology and chemistry. Volume 33:Number 11(2014:Nov.)
• Page Start: 2628
• Page End: 2632
• Publication Date: 2014-09-22
• Subjects: Pollution -- Environmental aspects -- Periodicals; Environmental chemistry -- Periodicals; 615.902
• DOI: 10.1002/etc.2723
• Languages: English
• ISSNs: 0730-7268

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <sec id="etc2723-sec-0001" sec-type="section"> <p>Variation in toxicity among formulations and species makes it difficult to extrapolate results to all species and all formulations of herbicides. The authors exposed larval wood frogs (<italic>Lithobates sylvaticus</italic>) from 4 populations to 2 glyphosate‐based herbicides, Roundup Weed and Grass Control® and Roundup WeatherMax®. The 96‐h median lethal concentration values for both formulations varied among the populations (Roundup Weed and Grass Control, 0.14 mg acid equivalents (a.e.)/L to 1.10 mg a.e./L; Roundup WeatherMax, 4.94 mg a.e./L to 8.26 mg a.e./L), demonstrating that toxicity varies among the formulations and that susceptibility may differ among populations. <italic>Environ Toxicol Chem 2014;33:2628–2632</italic>. © 2014 SETAC</p> </sec> </abstract>