Dean G. Thompson

TL;DR: Risks from the use of glyphosate +MON 0818 (Roundup) were slightly greater than those from glyphosate and surfactants such as LI 700; however, in over-water uses, risks were still considered small; similar small risks were observed for measured concentrations of glyphosate in surface waters resulting from aerial application of Vision to forestry areas in Canada.

TL;DR: Typical concentrations of glyphosate in amphibian habitats were well below a range of toxicity thresholds for aquatic organisms, and were thus judged to be unlikely to pose a substantial risk to either sensitive amphibian larvae or other aquatic biota.

TL;DR: There was a significant interaction of pH with Vision concentration in all eight models, such that the toxicity of Vision was amplified by elevated pH, the major toxic component of Vision and is hypothesized, in this study, to be the source of the pH interaction.

TL;DR: It is suggested that exposures typically occurring in forest wetlands are insufficient to induce significant acute mortality in native amphibian larvae, and vegetated buffers significantly mitigated against exposure and thus potential for acute effects.

TL;DR: Glyphosate and AMPA residues in oversprayed and buffered streams were monitored following application of ROUNDUP (2.0 kg/ha) to 45 ha of a coastal British Columbia watershed as mentioned in this paper.