(Damage from Glyphosate) "Velaidez (2001) visited the Municipality of Cartagena de Chaira in the Department of Caquet between November 1998 and February 1999 to investigate the impact of aerial fumigation on farmers and their crops. This study reported unintended effects of aerial glyphosate spraying but no quantitative data, with affects on rubber and cocoa plantations and food crops such as plantain, maize, yucca, rice, vegetables and fruits. Cattle were reported to lose hair after eating pastures previously affected by the fumigation. The death of young chickens and farmed fish was reported as a result of related water contamination."

Source

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.
http://www.unodc.org/pdf/ande…