You've lost me there PBee, for once.
As for evidence to the nth degree, I'd be happy with some evidence, any evidence, that there is a problem at the levels honeybees will encounter in the field in normal use of these things. Not planter dust, I know that is an issue abroad. I mean a problem with colonies dying or being depleted as a result of foraging on crops treated with neonics in the approved manner. There have been several large-scale and professionally run surveys abroad that compared exposure and colony survival or health and they didn't find a link, just a link to other things such as Varroa levels. We have bee farmers and others on this forum saying that OSR is a fine crop for their bees. And we have a new batch of scientific studies that used levels higher than the levels bees seem to be exposed to normally, including where they were fed directly with the stuff rather than being allowed to forage freely - it is only there studies that seem to indicate harm.
But if anyone knows otherwise, let us hear about it ....