One big question here is: why would a major company like Bayer CropScience move forward, as described here, without ensuring full compliance with the regulations in place at the time? Were they following the advice of their attorneys, ignoring it, or something else?

As reported in a December 29, 2009 National Resources Defense Council press release, spirotetramat (aka Movento and Ultor, manufactured by Bayer CropScience), which

could be dangerously toxic to America’s honey bees must be pulled from store shelves as a result of a suit filed by the Natural Resources Defense Council (NRDC) and the Xerces Society. In an order issued last week, a federal court in New York invalidated EPA’s approval of the pesticide … and ordered the agency to reevaluate the chemical in compliance with the law.  … and makes future sales of Movento illegal in the United States.

According to an NRDC attorney,

“EPA admitted to approving the pesticide illegally. …”

and, the press release continues

The approval process went forward without the advance notice and opportunity for public comment that is required by federal law and EPA’s own regulations.

EPA’s review of Bayer’s scientific studies found that trace residues of Movento brought back to the hive by adult bees could cause “significant mortality” and “massive perturbation” to young honeybees (larvae).

bee colonies in the United States have seen significant declines in recent years due to a combination of stressors, almost certainly including insecticide exposure.

“In approving Movento, EPA identified but ignored potentially serious harms to bees and other pollinators. We are in the midst of a pollinator crisis, with more than a third of our colonies disappearing in recent years. Given how important these creatures are to our food supply, we simply cannot look past these sorts of problems.”

I don’t find anything about this matter at the Bayer CropScience website.