A new, large-scale field study is underscoring what we know from previous research: neonicotinoid pesticides are harmful to bees. And the use of neonics as seed coatings on common crops like corn, soy and canola/rapeseed is of particular concern for both managed honey bees and native pollinators.

Source: Field tested: Neonics are really, truly bad for bees | Pesticide Action Network