U.S. Study Proves Pesticide Exposure to Bumble Bee Colony - Apinews

Quote from the report: "Here we show that chronic exposure of bumble bees to two pesticides (neonicotinoid and pyrethroid) at concentrations that could approximate field-level exposure impairs natural foraging behaviour and increases worker mortality leading to significant reductions in brood development and colony success.  We found that worker foraging performance, particularly pollen collecting efficiency, was significantly reduced with observe knock-on effects for forager recruitment, worker losses and overall worker productivity  Moreover, we provide evidence that combinatorial exposure to pesticides increases the propensity of colonies to fail."  Read more.