This is the same stuff Monsanto put in most of their weedkillers & herbicides

http://www.bbc.co.uk/news/world-latin-america-32677411

Colombia to ban coca spraying herbicide glyphosate

Colombia has announced it will stop using a controversial herbicide to destroy illegal plantations of coca, the raw ingredient for cocaine.

The decision follows a warning by the World Health Organisation (WHO) that glyphosate is "probably carcinogenic".

The product has been used in US-sponsored crop-spraying anti-narcotics programmes in South America.

President Juan Manuel Santos has said Colombia will need to find other mechanisms to combat coca production.

Anti-narcotics officials in Colombia will have until October to prepare an alternative plan.