> Peter, are the researchers basing "huge potential" on real world field evidence of serious harm or fanciful imagining?

Those are the only two choices? First, the inert ingredients have not been studied all that much so there is real *potential* for harm. Second, they vastly increase the effectiveness of products, & the combinations have not been tested, only the active ingredients alone. Third, this topic was raised at the Bee Research conference in Beltsville this winter, so I would not call it fanciful imagining.

PLB

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