In Louisiana, they tried publishing recipes for nutria in an attempt to get people to assist in their eradication by eating them. When that didn't work, they put a bounty on them, but again, no luck.
They finally got smart and passed a law making it illegal to kill and eat a nutria. Cajuns couldn't resist and the nutria population has been going down ever since.
Not a big deal. Nutria have been in North Carolina for years and years.