We came to that conclusion based on our scientific assessment. We had over a hundred studies submitted by the registrants. We looked at over 200 studies by academics that were in the open literature. We also reviewed the regulatory decisions of the EPA, FSA, FDA, and the Department of Agriculture in the U.S. Having looked at all that evidence plus the monitoring information provided to us by academics, provinces, and federal departments, we came to the conclusion that the risks were unacceptable.
On March 7th, 2017. See this statement in context.