Birds and the bees - and the EPA

EPA and the disappearing honeybees

WASHINGTON -- The U.S. Environmental Protection Agency is refusing to disclose records about a new class of pesticides that could be playing a role in the disappearance of millions of honeybees in the United States, a lawsuit filed Monday charges. The Natural Resources Defense Council wants to see the studies that the EPA required when it approved a pesticide made by Bayer CropScience five years ago.

The environmental group filed the suit as part of an effort to find out how diligently the EPA is protecting honeybees from dangerous pesticides...

In the last two years, beekeepers have reported unexplained losses of hives - 30 percent and upward - leading to a phenomenon called colony collapse disorder. Scientists believe that the decline in bees is linked to an onslaught of pesticides, mites, parasites and viruses, as well as a loss of habitat and food...

Clothianidin is the pesticide at the center of controversy. It is used to coat corn, sugar beet and sorghum seeds and is part of a class of pesticides called neonicotinoids. The pesticide was blamed for bee deaths in France and Germany, which also is dealing with a colony collapse. Those two countries have suspended its use until further study. An EPA fact sheet from 2003 says clothianidin has the potential for toxic chronic exposure to honey bees, as well as other pollinators, through residues in nectar and pollen...

Scientists presenting at the American Chemical Society national meeting Monday reported that dozens of pesticides had been found in samples of adult bees, broods, pollen and wax collected from honeybee colonies suspected to have died from symptoms of colony collapse disorder, including some neonicotinoids.

Entomologist Gabriela Chavarria, director of Natural Resources Defense Council's Science Center, said over the years bees have had to withstand devastating problems.
Bees pick up deadly farm and home chemicals when they visit flowers, or encounter chemical drift from aerial and other applications. Fifteen years ago, queen bees imported from China brought varroa mites that attacked broods of worker bees. Microscopic tracheal mites invade the hives.

And now the new pesticide, clothianidin, is another problem, Chavarria said. Scientists must find out whether the toxicity has been sufficiently studied, she said. "We want this information now. We cannot continue to wait. Bees are disappearing. Our whole existence depends on them because we eat. The flowers need to be pollinated, and the only ones to do it are the bees."

NEW YORK NEWS
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