The EPA has just announced a moratorium on approving any new bee-killing neonicotinoid pesticides. This does not remove bee-killing pesticides already on the market, and there are several. Last June, President Obama created a task force to develop a strategy to save the bees.
New and Pending Submissions for Outdoor Uses of Products Containing the Nitroguanidine Neonicotinoids Imidacloprid, Dinotefuran, Clothianidin or Thiamethoxam, United States Environmental Protection Agency, April 2, 2015
Tell the EPA to remove products from the market that kill bees, HERE
Why Bees are Important, TED Talk from Minnesotan Marla Spivak, MacArthur Fellow/Distinguished McKnight Professor/Extension Entomologist, visit the beelab for more info