Unless you can find Mogeton in this country, the only sure control is scraping it off. But the good news is that other than being unsightly, it is not much of a concern in a garden setting. It is with greenhouses and nursery production that the stuff becomes problematical.

If you still have some I will be glad to take some off your hands. If makes a great terrarium type plant as long as you only grow it in the terrarium.

I don't have any right now because it is too cold and I may have killed it. I will check come Spring.