Neonicotinoids Challenged as Study Links Imidacloprid to 85% Mortality of Queen Bees (update)

Researchers from Stirling University (Stirling, U.K.) and the National Institute for Agricultural Research (INRA; Avignon, France) have published two studies in which they say that 85% of queen bumblebees – the foundation of future bee populations – die when exposed to relatively small concentrations of Imidacloprid, a neonicotinyl insecticide. Imidacloprid was developed and is produced by Bayer CropScience. The researchers also found that significantly fewer honey bees returned to their colonies if they had been exposed to Thiamethoxam, another...

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