Mike Thurk, with wife Linda

Mike Thurk, with wife Linda assisting, demonstrated how to throw a rake into the lake to snag a sample.

Volunteers in Minnesota and Wisconsin turn out to search lakes for aquatic invasive species

Perhaps you’ve never heard of starry stonewort? You may not even be knowledgeable about Eurasian watermilfoil, zebra mussels or curly-leaf pondweed.

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