Scientists are testing a new pesticide to kill off invasive zebra mussels in a small Minneapolis-area lake.
The Star Tribune reports Christmas Lake became the first in the nation Monday to use the new product. Zequanox uses dead bacterial cells to kill the aquatic pests that eat it. Zebra mussels have been found in 29 states.
The Minnesota Pollution Control Agency is proposing to add two contaminated sites to the state's Superfund list.
The proposed additions are the former Executive Cleaners site in Worthington in Nobles County of southwestern Minnesota, and the Spring Park Municipal Wells site in Spring Park near Lake Minnetonka in Hennepin County.