How to Stop Invasive Species Spread in Wisconsin

By Blake Jackson

The Wisconsin Department of Natural Resources (DNR) is encouraging residents to take part in National Invasive Species Awareness Week (NISAW), scheduled from today to February 27. The nationwide initiative, organized by the North American Invasive Species Management Association, focuses on educating the public about invasive species, the damage they cause, and the steps people can take to limit their spread.

"Invasive" species include nonnative plants, insects, and fungi that reproduce quickly and spread aggressively due to a lack of natural predators. These organisms often outcompete native species, disrupt habitats, and interfere with ecosystem balance. Their impact is not only environmental but also economic.

"The negative effects of invasive species include those on sport and commercial fishing, forestry and agriculture, and on users of untreated water such as power companies and municipal water plants," said Karen Hyun, DNR Secretary.

"These expenses are passed on to consumers through higher prices for everything from lumber to fish to utilities."

"In Wisconsin forests, invasive shrubs such as nonnative buckthorns and honeysuckles prevent the regeneration of young native trees," said Sec. Hyun.

"This affects the quality of our forests and parks, disrupts natural plant and wildlife habitats and creates long-term impacts on our $28-billion-per-year forestry industry."

The DNR encourages residents to help protect natural areas by cleaning boots, boats, and outdoor equipment between uses; buying firewood locally; choosing native plants for gardens; and ensuring hay, mulch, and gravel are certified weed-free.

Boaters and anglers should clean, drain, and dry equipment, avoid releasing aquarium contents into waterways, and properly dispose of live bait.

NAISMA hosts a dedicated webpage for NISAW that features a complete event. Visitors can register for educational webinars, participate in advocacy discussions, and find resources for local conservation action.

Photo Credit: gettyimages-paul-hartley