"Scientists say they have uncovered the first real evidence that neonicotinoid seed treatments damage honeybee populations when used on farms but agrochemical companies have disputed the findings, insisting they are inconclusive. The 2.75m study billed as the first large-scale, field-realistic experiment to assess the effect of neonicotinoids exposed three bee species to fields of winter oilseed rape treated with the agrochemicals. ....."
Read more here: Farmers Weekly