>The LD50 for fipronil (Regent) is 3.7 to 6 ng/bee compared to Imid of
>3.7-81 ng/bee. Regent is 6 max while Imid is 81 a factor of more than 10!"
Does LD50 have any real relevance fo neonicotinoids? Surely it is the
sublethal effects that are important.
Best wishes
Peter
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