Pond Boss Forums AQUATIC VEGETATION Controlling unwanted plants When killing Cattail, what's best?

Here's a reason why they might not be incorporated.

Cutrine Plus Liquid. OK to ship to states that allow it.
Cutrine Ultra. Not OK to ship. Why? I was told that it's because the surfactant is added to it.

But it's OK to ship a surfactant in it's own container. And it's OK to mix it with Cutrine Plus Liquid, and apply it.

I've given up on trying to figure out the "whys" of some things...........