加拿大有害生物管理局(PMRA)计划在2016年底前逐步淘汰本国使用量最大的有机磷类杀虫剂——二嗪磷。然而到那时,即便PMRA受理了其相关代替产品的登记申请,也还需要2年的时间评估替代产品的效果。早在2007年,PMRA就曾提议于2012年淘汰二嗪磷,但之后仅与利益相关者制定了风险管理计划和过渡性安排(《Agrow》No.581)。2012年3月,PMRA删除 The Canadian Pest Management Agency (PMRA) plans to phase-out the most widely used organophosphate insecticide, diazinon, by the end of 2016. However, even then, PMRA will need two years to evaluate the effectiveness of the replacement product, even if PMRA has accepted the application for registration of its replacement product. As early as 2007, PMRA had proposed the phase-out of diazinon in 2012, but only subsequently developed a risk management plan and transitional arrangements with stakeholders (“Agrow” No. 581). March 2012, PMRA deleted