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Canadian bee deaths linked to neonics down 70%

There has been a 70% reduction in the number of incidents of bee deaths associated with neonicotinoid insecticides reported to the Canadian Pest Management Regulatory Agency (PMRA) this year. The reasons for the decline are unclear and investigations are continuing, according to an update on neonicotinoid insecticides and bee health issued by the PMRA this month. The Agency introduced measures to reduce exposure to dust from neonicotinoid maize and soybean seed treatments this year, but a direct correlation cannot be made because the cold, wet spring in south-western Ontario meant that maize was planted later and less intensively than in previous years, possibly influencing the fall in incidents, the PMRA points out. Also, the cold spring resulted in differences in bee foraging activity and available forage relative to the timing of maize planting.



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