I can comment briefly. There have been examples of products that have been taken off. I recall one insecticide that we used years ago that was discontinued and actually replaced by the seed treatments we've been talking about. Our perspective in western Canada is that the way seed treatments go down with canola seed has as close to zero impact that you could have. There is no dust. There is no seed on top of the soil. It's all injected into the soil. So as far as safety goes, it appears—to me, at least—that it is a safe system to use.
Alternatively...and we've seen it; years ago we used to have canola fields completely eaten off by flea beetles, which is what the neonics are controlling. In their absence, our only alternative would be to overspray with a topical application, which is far more environmentally impactful. So that has occurred.