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High insecticide levels in dead honeybees

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Honeybee populations have been in serious decline for years, and scientists may have identified one of the factors that cause bee deaths around agricultural fields.

The research showed those insecticides were present at high concentrations in waste talc that is exhausted from farm machinery during planting.

“We know that these insecticides are highly toxic to bees; we found them in each sample of dead and dying bees,” says Christian Krupke, associate professor of entomology at Purdue University.

“This material is so concentrated that even small amounts landing on flowering plants around a field can kill foragers or be transported to the hive in contaminated pollen. This might be why we found these insecticides in pollen that the bees had collected and brought back to their hives.” 

Full story at Futurity.

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Photo credit: Fotolia

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