More unwanted guests are calling Minnesota home, and we’re not referring to some obnoxious relative who doesn’t know how or when to say goodbye.

We’re talking invasive species — plants and animals not originally from Minnesota that are harming the economy and environment. The invasive species that have garnered media attention lately include the emerald ash borer, zebra mussels and Eurasian watermilfoil. The cause of their spread into Minnesota lies largely with some people who are being careless outdoors and allowing these harmful creatures to move in and wreak havoc on the state’s natural resources.

State agencies have been busy this spring and summer responding to new reports of the invasive species found in area lakes and trees. In May, the Minnesota Department of Agriculture announced the discovery of an emerald ash borer infestation in St. Paul. In late June, the Minnesota Department of Natural Resources confirmed there were zebra mussels in Pike Lake near Duluth. And earlier this month, the DNR said Eurasian watermilfoil was growing in Lake Florida, near Willmar.

State agencies are stepping up educational and enforcement efforts to slow the progression of the invasive species. The DNR’s Invasive Species Program, established in 1991, strives to prevent and curb the spread of invasive species within the state, and reduce the impacts caused by invasive species to Minnesota’s ecology, society and economy. However, state agencies can only do so much. The rest is up to Minnesotans and those who visit this great state.

Boaters, anglers, water-skiers and others who use the water must take steps to prevent transporting aquatic invasive species from one lake or river to another. Transporting prohibited species is illegal in Minnesota, with violators facing fines up to $500.

No matter how hard state agencies work to prevent and control invasive species, the actions of even one careless boater or camper could undermine all their efforts. Those who use the outdoors need to take steps to protect it, as well.

— St. Cloud Times, July 15