The Minnesota Department of Natural Resources is increasing efforts to stop the spread of invasive species over the Fourth of July weekend.
The DNR also is alerting boaters to a new law that takes effect Thursday requiring boaters to remove drain plugs and drain water before leaving any lake or river in Minnesota.
DNR officials plan a news conference at Gray's Bay on Lake Minnetonka to announce the stepped-up enforcement efforts.
(Copyright 2010 by The Associated Press. All Rights Reserved.)
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