A class of insecticide that is applied to seeds and taken up into plant tissue may be responsible for much of the widespread decline in honeybee populations, increasing numbers of researchers and environmentalists are suggesting.
Starting in 2005, beekeepers in the United States first reported large numbers of bees mysteriously disappearing, and since then the problem has spread to different parts of the world. No one cause of the collapse has been identified, although front-running theories include parasites, viruses, stress from long-distance transport of hives for pollination, and pesticides.'
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