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Top USDA bee researcher also found Bayer pesticide harmful to honeybees

Top USDA bee researcher also found Bayer pesticide harmful to honeybees
Remember the case of the leaked document showing that the EPA’s own scientists are concerned about a pesticide it approved that might harm fragile honeybee populations?
Well, it turns that the EPA isn’t the only government agency whose researchers are worried about neonicotinoid pesticides. USDA researchers also have good evidence that these nicotine-derived chemicals, marketed by German agrichemical giant Bayer, could be playing a part in Colony Collapse Disorder—the mysterious massive honeybee die-offs that United States and Europe have been experiencing in recent years. So why on earth are they still in use on million of acres of American farmland?

According to a report by Mike McCarthy, environment editor of the U.K.-based Independent, the lead researcher at the USDA’s own Bee Research Laboratory completed research two years ago suggesting that even extremely low levels of exposure to neonicotinoids makes bees more vulnerable to harm from common pathogens...

Pettis’s study focused on imidacloprid, which like clothianidin is a neonicotinoid pesticide marketed by Bayer as a seed treatment. The findings are pretty damning for these nicotine-derived pesticides, according to McCarthy. He summarizes the study like this:
The American study ... has demonstrated that the insects’ vulnerability to infection is increased by the presence of imidacloprid, even at the most microscopic doses. Dr. Pettis and his team found that increased disease infection happened even when the levels of the insecticide were so tiny that they could not subsequently be detected in the bees, although the researchers knew that they had been dosed with it.
(Evidently) Pettis hasn’t spoken to U.S. journalists about his unpublished neonicotinoid research. But he did appear in a 2010 documentary called The Strange Disappearance of the Honeybees by U.S. filmmaker Mike Daniels, which has been screened widely in Europe but not yet in the United States, McCarthy reports. Pettis’ remarks in the film are what alerted the European press to his findings on neonicotinoids.

The grassroots group Food Democracy has a petition asking the EPA to ban Bayer’s toxic pesticide clothianidin.  It is instructive to read the comments in this article too - as some beekeepers have alternate opinions.

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