I would say it's pretty nearly impossible to police. We're just unfolding a provincial program where we're going to be providing monitoring at all of the major lakes, rivers, access points, with testing equipment to see if mussels are present. Once you find them, you've probably let the genie out of the bottle already, but at least we have some form of recognition that the problem exists.
There's some good news with another good Saskatchewan product: potash seems to control mussels quite well.