Pubdate: Mon, 8 Oct 2001 Source: Chemistry & Industry Magazine (UK) Issue: 20 Aug 2001 Page: 494 Website: http://ci.mond.org/current/home.html Contact: 2001 Society of Chemical Industry JUDGE SAYS NO TO DRUG CROP SPRAY A US-sponsored anti-narcotics campaign in Colombia has been dealt a serious blow after a judge ruled to suspend the aerial spraying of drug crops because of health and environmental concerns. The crops are being sprayed with a glyphosate herbicide. However, Colombia's Judge Gilberto Reyes has ruled that until more safety data on the weed killer is produced all aerial spraying must stop. According to Greenpeace, there are three forms of glyphosate used as herbicides: glyphosate-isopropylammonium and glyphosate-sesquiodium, both patented by US agricultural products giant Monsanto, and glyphosate-trimesium, which is owned by Zeneca. Leaders of Colombia's indigenous communities and environmentalists have called for the cessation of spraying. The spraying, they claim, is indiscriminate, killing normal crops as well as heroin poppies and coca bushes. They also claim the glyphosate is poisoning drinking water and causing skin rashes, vomiting and respiratory disorders in farmers whose crops have been sprayed. Glyphosate is the active ingredient in garden weed killers used around the world. The United Nations has called for an independent review to be carried out into Colombia's spraying campaign. Glyphosate is a broadspectrum herbicide that kills plants by inhibiting the biochemical pathway and acting as a growth regulator at low concentrations. A spokesperson for Monsanto said it was unable to comment on any issues concerning the Colombia crop-spraying programme, as it does not discuss who it does or does not have contracts with. - --- MAP posted-by: Beth