INVASIVE SPECIES: Safety concerns scuttle Wis. plan to pit bacteria against mussels Published: Thursday, July 3, 2014 Local concerns killed an experimental plan to use bacteria to kill invasive zebra mussels in a northeast Wisconsin lake. Please subscribe to Greenwire to read the full story. Username: Password: Forgot your access codes? Recover them. Not a subscriber? Sign up for a trial. Ready to subscribe? Click here.