If they’re so harmful to bees, how did neonicotinoids get on the market? In the U.S., neonics were originally approved for use through a loophole called “conditional registration.” Conditional registration allows pesticides to go to market even when the pesticide manufacturer can’t provide the necessary research on the chemical’s impact. Sixty-five percent of pesticides now on the market were approved through this process.
In 2010, a leaked EPA memo brought this problem to light. The memo, written in 2003, showed that Bayer had submitted flawed science in the registration process for a neonicotinoid called clothianidin. The memo revealed that EPA knew that the research was flawed, but approved clothianidin anyway.
What’s happened to clothianidin since this memo became public in 2010? It has become one of the top-selling insecticides in the United States and around the world. There is not enough accountability to ensure that our federal agencies act swiftly when a problem emerges after a conditional registration, and too often, the product remains on the shelf.
Another shortcoming in transparency arises from the primary use of neonicotinoids as seed treatments, pesticide coatings pre-applied to seeds before farmers buy them. Of the 200 million acres of U.S. farmland treated with neonicotionids, 95 percent had neonicotinoids applied via coated seeds. But remarkably, seed coatings aren’t tracked or regulated like other uses of pesticides, because of another EPA loophole that exempts “treated articles” from regulation. This makes it quite difficult for lawmakers and researchers to know where, and in what quantities, neonic-treated seeds are planted. This is critical information that could help illuminate correlations between neonicotinoid use and bee losses.
Though the EPA is responsible for ensuring that pesticides approved for use don’t harm bees, the agency may be considering relinquishing this responsibility back to the states, calling for individual state “pollinator protection plans” instead of a comprehensive change in federal pesticide policy to protect bees. Unfortunately, these state plans would likely put the onus on beekeepers and state agencies that lack the resources to implement truly protective plans.