A study into the presence of neonicotinoids in Canadian waterways suggests a ban or restriction of neonicotinoid seed treatments is not necessary.

 

The Environmental Monitoring Working Group (EMWG) was set up to monitor the presence of imidacloprid, clothianidin and thiamethoxam in waterways after Health Canada’s Pest Management Regulatory Agency (PMRA) 2016 decision to phase out imidacloprid in three to five years.

 

The PMRA cited acute and chronic risks to aquatic invertebrates as reasons for the ban, and its final decision on whether to ban imidacloprid is expected in December.

 

The PMRA is also reviewing and may ban two other neonicotinoids, thiamethoxam and clothianidin, because of their effects on aquatic insects. The final decisions on these neonicotinoids are expected to be made in 2020.

 

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