(Effects of Glyphosate) "Solomon et al. (2005) conducted a study on the effects on human health and the environment of aerial spraying of glyphosate herbicide for the illicit crops eradication programme in Colombia, based on a review of literature. It was found the formulation of glyphosate used could produce temporary irritation in eyes and skin, but no effects on reproduction were observed. No ecological field data were collected from the region, but a review found that glyphosate had low toxicity to non-target organisms other than plants. The formulation used in the eradication programme in Colombia is of low toxicity for mammals and vertebrates, although some temporary impacts may occur. Amphibians are the group most sensitive to this formulation, and it has been suggested that other formulations be tested when eradication is conducted near to water bodies, in order to minimise impacts on amphibian populations (Solomon et al., 2005). Relyea (2005) tested the impacts of glyphosate on amphibians and concluded that it could cause high rates of mortality in larval stages and lead to population decline.
"There appear to have been no systematic field studies on the possibility of loss of forest from unintended drift of glyphosate during aerial spraying."
United Nations Office on Drugs and Crime, "Coca Cultivation in the Andean Region: A Survey of Bolivia, Colombia and Peru" (Vienna, Austria: June 2006), p. 44.