A Colombian judge has halted field tests involving glufosinate-ammonium, a herbicide that has raised safety concerns, as ordered on Friday, September 11, 2026. The decision was reported by AFP, a global news agency. The tests had been planned by President Abelardo de la Espriella as part of efforts to evaluate new agricultural chemicals for use in the country. Glufosinate-ammonium is a broad-spectrum herbicide used to kill a wide range of plants, including weeds. It has been linked to potential health and environmental risks, including toxicity to humans and aquatic life, which has led to restrictions in some countries. The suspension of the tests comes amid growing public and environmental concerns about the introduction of new agricultural chemicals in Colombia. The judge’s decision follows legal challenges from environmental groups and public health advocates, who argue that the herbicide could pose significant risks to local ecosystems and communities. These groups requested a temporary halt to the tests until a full environmental and health impact assessment could be conducted. President de la Espriella had defended the planned tests, stating they were necessary to support Colombia’s agricultural sector and ensure food security. However, the judge’s ruling highlights the ongoing tension between agricultural development and environmental protection in the country. The government is now expected to respond to the court’s decision and determine the next steps for the proposed herbicide trials.